The present invention relates generally to a technique regarding a preloaded injection syringe and, more particularly, to an injection syringe device preloaded with a soft capsule containing a liquid medicament, which enables the injection syringe to function as a means of storing medicaments and therefore a substitution of bottle usage. The invention further permits great precision for injection dosage and facilitates portable convenience.
In modern medicine, treatment of a disease by injecting liquid medicaments from soft capsules to the patient has already become a common practice. Hence, vacuum sealed medication bottles are widely used for storage of the soft capsules and medicaments that need be isolated from ambient air, In this case, the soft capsules may be extracted from the medication bottle by inserting a conventional injection syringe into the bottle and drawing the soft capsules into the syringe before an injection treatment.
However, the medical fluid bottles produced in many countries around the world are mostly glass bottles provided with metallic screw caps. The glass bottles inherited the following deficiencies: low endurance for long distance transport, higher rate of breakability, heavy weight, and high occurrence of fluid leakage and microbial contamination due to the loose connection between the bottle and the cap. Furthermore, as each bottle comes with substantially the same dimension and configuration, there poses a higher risk of injection error and lack of precise measurement for dosage control.
In addition, the medication bottles known in the art are likely to pollute the environment after use. Therefore, there is a need in the art for enabling an injection syringe to be pre-filled or pre-loaded with a soft capsule and allowing the injection procedure to be carried out by forward compression of a plunger against the soft capsule stored within the barrel of the syringe, so that the soft capsule is penetrated to release the contents. Such technique would allow greater convenience for each injection and eliminate the drawbacks occurring in the conventional injection procedures which involve the use of medication bottles.
A primary object of the invention is to provide an injection inducer device for an injection syringe prefilled with a liquid medicament or preloaded with a soft capsule containing a liquid medicament, which effectively overcomes the drawbacks occurring in the art as described above.
For achieving the object above, the invention provides an injection inducer device for use with a conventional injection syringe. The device comprises a sterile seal preloaded in a front adapter end of the injection at position close to an injection opening of the adapter end, wherein the sterile seal is formed with a recessed guide groove; a removable needle mounted at its front end with an adaptive cover for sleeving upon the adapter end and formed at its front end with a longitudinal bevel, so that the removable needle can penetrate through the sterile seal along the guide groove to enter a storage chamber of the injection syringe, wherein the sterile seal has a thickness in a longitudinal direction greater than a bevel length of the removable needle.
In a preferred embodiment, the device further comprises a plunger formed on its front face with a hole registering with the removable needle, so that the removable needle can insert into the hole after penetrating through the sterile seal and entering the storage chamber of the injection syringe.
For achieving the object above, the invention further provides an injection inducer device for use with a conventional injection syringe and a plunger, where the plunger is sleeved within a storage chamber of the injection syringe and configured to be movable reciprocatingly. The device comprises a spiked disc disposed at bottom of the storage chamber of the injection syringe and mounted centrally with an inner needle which is formed with a longitudinal bevel; and an elongated hole formed at a front end of the plunger and registering with the inner needle of the spiked disc.
For achieving the object above, the invention further provides an injection inducer device for use with a conventional injection syringe and a plunger, where the plunger is sleeved within a storage chamber of the injection syringe and configured to be movable reciprocatingly. The device comprises a spiked disc disposed at bottom of the storage chamber of the injection syringe and formed with a plurality of sharp spikes; and a plurality of sharp barbs disposed on a front face of the plunger, wherein the barbs and the spikes are arranged offset from one other in the longitudinal direction.
For achieving the object above, the invention further provides an injection inducer device for use with a conventional injection syringe. The injection inducer device comprises a spiked disc disposed at the bottom of the storage chamber of the injection syringe and formed with a spiral elastic spike.
For achieving the object above, the invention provides another injection inducer device adapted for receiving a soft capsule. The device comprises an injection syringe mounted at its front end with a first needle and defining a storage chamber, wherein the storage chamber is formed centrally on its bottom face at a junction connecting the storage chamber to the first needle with needle exits in fluid communication with the first needle; and a plunger sleeved within the storage chamber of the injection syringe and adapted to move reciprocatingly, wherein the plunger is mounted at its front face with a plurality of sharp barbs.
In a preferred embodiment, the storage chamber of the injection syringe is formed at its bottom face with a plurality of sharp spikes, wherein the sharp spikes and the sharp barbs are arranged offset from one other in the longitudinal direction.
For achieving the object above, the invention provides another injection inducer device adapted for receiving a soft capsule. The device comprises an injection syringe comprising a front adapter end sealed with a rubber seal, and a storage chamber disposed rear of the adapter end and adapted to receive a soft capsule; a removable needle, mounted at its front end with an adaptive cover adapted to sleeve upon the adapter end, so that the removable needle sleeved within the adaptive cover may be inserted into the storage chamber through the rubber seal, wherein the removable needle is formed at its front end with a longitudinal bevel; and a plunger, sleeved within the storage chamber of the injection syringe and configured to be movable reciprocatingly, wherein the plunger is formed at its front end with an elongated hole registering with the removable needle.
In a preferred embodiment, the longitudinal bevel of the removable needle has a length smaller than the length of the rubber seal, and the length of the longitudinal bevel is smaller than the depth of the elongated hole.
The above and other objects, features and effects of the invention will become apparent with reference to the following description of the preferred embodiments.
The following embodiments are described in conjunction with the accompanying drawings. It should be noted that the drawings are simplified schematic diagrams illustrating the basic concept of the invention. Therefore, the quantities, configurations and scales of the constituting elements as shown in the drawings are depicted for illustrative purposes only, and it is not meant to limit or otherwise narrow the scope of the invention. The shapes, quantities and scales of the constituting elements in actual implementation may be changed and modified based on the actual need.
Firstly,
In a preferred embodiment, the device further comprises a plunger 22 which is formed on its front face with a hole 221 registering with the removable needle 12. The removable needle 12 is configured so that it can insert into the hole 221 after penetrating through the sterile seal 11 and entering the storage chamber of the injection syringe 2.
In a practical application shown in
In a practical application where a soft capsule (not shown) is preloaded in the storage chamber of the injection syringe 2, by virtue of the structural arrangement described above, when the plunger 22 is sleeved within the storage chamber of the injection syringe 2 and pushed to move forward, the soft capsule is pushed by the plunger 22 to contact the inner needle 131 of the spiked disc 13. As a result, the soft capsule is punctured by the inner needle 131, and the liquid medicament stored in the soft capsule is released and flows through the longitudinal bevel 1311 of the inner needle 131 to the needle of the injection syringe 2, from which the liquid medicament is then administered to a patient via injection. Furthermore, as the plunger 22 is pushed to the bottom of the storage chamber, the inner needle 131 of the spiked disc 13 is inserted into and accommodated perfectly within the elongated hole 14 formed at the front end of the plunger 22.
In addition to the common needle configuration as described above, the inner needle 131 of the spiked disc 13 may be configured to have a bullet-shaped needle tip, so that the inner needle 131 of the spiked disc 13 is adapted to penetrate through the soft capsule straightly.
In a practical application where a soft capsule (not shown) is preloaded in the storage chamber of the injection syringe 2, by virtue of the structural arrangement described above, when the plunger 22 is sleeved within the storage chamber of the injection syringe 2 and pushed to move forward, the soft capsule is pushed by the plunger 22 to move toward the spiked disc 13. As a result, the sharp spikes 132 breaks the soft capsule, and the liquid medicament in the soft capsule is released and flows into the needle of the injection syringe, from which the liquid medicament is then administered to a patient via injection. Furthermore, when the plunger 22 is pushed to the bottom of the storage chamber, the sharp barbs 15 may engage the used soft capsule and draw it out of the storage chamber of the injection syringe 2, thereby facilitating the convenience in discarding the used soft capsule.
As shown in
In a practical application where a soft capsule (not shown) is preloaded in the storage chamber of the injection syringe 2, by virtue of the structural arrangement described above, when the plunger 22 is sleeved within the storage chamber of the injection syringe 2 and pushed to move forward, the soft capsule is pushed by the plunger 22 to move toward the spiked disc 13. As a result, the spiral elastic spike 133 breaks the soft capsule, and the liquid medicament stored in the soft capsule is released and flows into the needle of the injection syringe, from which the liquid medicament is then administered to a patient via injection.
In a preferred embodiment, the flexible spike 163 is configured in the form of two rectangular-shaped flexible spikes 163 disposed on the bottom surface of the storage chamber. The flexible spike 163 has a length smaller than the radius of the bottom surface of the storage chamber, so that the two flexible spikes 163, upon being pressed, may be flattened on the bottom surface of the storage chamber. In other embodiments, the flexible spike 163 is configured in the form of a spiral-shaped flexible spike 163. It is apparent to those skilled in the art that the amount of the flexible spikes 163 is not limited to two and may be one or three or more.
In a practical application where a soft capsule (not shown) is preloaded in the storage chamber of the injection syringe 16, by virtue of the structural arrangement described above, when the plunger 17 is sleeved within the storage chamber of the injection syringe 16 and pushed to move forward, the soft capsule is pushed by the plunger 17 to move forward. As a result, the flexible spikes 163 break the soft capsule, and the liquid medicament stored in the soft capsule is released and flows through the needle exits 162 to the first needle 161, from which the liquid medicament is then administered to a patient via injection.
In the sixth embodiment, the longitudinal bevel 180 of the removable needle 18 has a length smaller than the length of the rubber seal 164, while the length of the longitudinal bevel 180 is smaller than the length of the elongated hole 172. The adaptive cover 181 is mounted inside with positioning bosses 182, and the adapter end of the injection syringe 16 is formed with protrusions fitting with the positioning bosses 182, so that the adaptive cover 181 is secured on the adapter end of the injection syringe 14. Furthermore, the rubber seal 164 may be configured to consist of multiple tapered sections for rectifying the penetration of the removable needle 18, allowing the removable needle 18 to enter the injection syringe 14 in an accurate manner
In a practical application where a soft capsule (not shown) is preloaded in the storage chamber of the injection syringe 16, by virtue of the structural arrangement described above, when the plunger 17 is sleeved within the storage chamber of the injection syringe 16 and pushed to move forward, the soft capsule is pushed forward by the plunger 17. As a result, the soft capsule is punctured by the removable needle 18 which protrudes into the storage chamber, and the liquid medicament stored in the soft capsule is released and flows through the longitudinal bevel 180 to the tip of the removable needle 18, from which the liquid medicament is then administered to a patient via injection. Furthermore, as the plunger 18 is pushed to the bottom of the storage chamber, the removable needle 18 is inserted into and accommodated perfectly within the elongated hole 18 formed in the plunger 17.
In addition,
In addition, the removable needle 18 is configured to have a tapered tip with an apex arranged coaxial with the longitudinal axis of the removable needle 18, so as to prevent an offset during the penetration. The rubber seal 164 is configured to consist of multiple tapered sections, allowing the removable needle 18 to get into the storage chamber accurately and break the soft capsule successfully.
With reference to the embodiments described above, a skilled artisan would appreciate that the spiked disc 13, the spiral elastic spike 133, the sharp spikes 132, the sharp barbs 15, the flexible spike 163, and the elongated hole 171 of the plunger 17 are not limited to the configurations described in the embodiments above and may be modified and combined depending on the actual needs.
In contrast to the prior art, the injection inducer device disclosed herein is provided beforehand with a sterile seal in the adapter end of a conventional injection syringe, allowing a liquid medicament or a soft capsule containing the liquid medicament to be preloaded in the storage chamber of the injection syringe. By having the removable needle penetrate the sterile seal, the medicament can be delivered to a patient by injection. It is critical that the thickness of the sterile seal shall be shorter than the bevel length of the removable needle. The conventional medication bottles may be replaced with the invention disclosed herein, in a bid to avoid medication error or difficult dosage management, thus enhancing the convenience and safety in medication.
In addition, the injection inducer device disclosed herein involves provision of a spiked disc in a conventional injection syringe, and one or more soft capsules containing the medicament are preloaded in the storage chamber of the injection syringe. By pushing the plunger, the soft capsules will be collapsed quickly, thereby releasing the medicament stored therein for injection delivery. As such, the invention constitutes an excellent substitution for the conventional medication bottles by virtue of the advantages of high portability, light weight, low frangibility, and high endurance for long distance transport. In addition, the spiked disc described herein may be used in the injection syringe either alone or in combination with a needle in the case where the plunger is formed with an elongated hole registering with the needle. The spiked disc may be configured in various forms, such as sharp spikes, flexible spikes and spiral elastic spikes. It is apparent to those skilled in the art that any structural arrangement capable to penetrating through the soft capsule may be incorporated into the spiked disc, as long as the medicament stored in the soft capsule can be released for injection delivery.
While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that methods and structures within the scope of these claims and their equivalents be covered thereby.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2017/082540 | 4/28/2017 | WO | 00 |