TWI674121B - Mini micro needle syringe - Google Patents

Abstract

The invention relates to a mini-type microneedle syringe, which mainly includes a microneedle unit, a base, a pressing member, an adjustment cover and a spacer ring, wherein the base is a tube body with a middle hole and is at the bottom of the base A flange portion is formed on the periphery and external threads are formed on the outer surface of the base tube. The aforementioned microneedle unit is provided at the bottom end of the middle hole of the base. The microneedle unit includes a microneedle element and a medicament accommodating element. The element has a plurality of medicine chambers corresponding to the microneedles. At the other end of the middle hole of the base, a set is provided with a pressing member. The top of the pressing member is provided with a reduced outer diameter portion, and an adjustment cap with an internal thread is provided at the top locking group of the base. The adjusting cover has a set of matching holes for the outer diameter reduction portion of the top end of the pressing member to pass through the matching holes of the adjusting cover, and a spacer ring is set between the adjusting cover and the flange portion of the base. Limit the position of the adjustment cover lock group, and make sure that the pressing part on the bottom side of the pressing piece is pushed to the top edge position of the medicine chamber that contacts the medicine containing component when the adjusting cover is locked, and the outer diameter of the pressing piece body and the middle hole of the base are Slightly tight fit, The pressing member needs to be pushed to move axially. When the injection is performed, pressing the pressing member to move downward will cause the pressing part of the bottom edge of the pressing member to squeeze the medicine chamber of the medicine containing component, and The medicament is pushed out of the microneedle for painless, safe and convenient microneedle injection.

Description

Miniature microneedle syringe

The invention relates to a mini-type micro-needle syringe, in particular to a micro-needle syringe with accurate injection dose, small volume and convenient use.

According to the prosperity of industry and commerce, people's life is tense, and their physical health is affected. In addition, improper diets keep the number of people with chronic diseases high. Patients with chronic diseases need to inject drugs every day for treatment and control of the disease, regardless of Patients with chronic diseases, or general patients, usually receive traditional large-diameter injection needles when receiving injections. The diameter of the needle hole is about 1mm and the length of the needle is about 1-3 cm. Therefore, the injection will penetrate into the subcutaneous tissue and cause pain. Therefore, traditional injection needles not only bring pain to patients, but the injection needle holes are more likely to increase the risk of infection.

Therefore, some people have developed a microneedle syringe, but it is based on a needle seat with most microneedles, and then it is combined with a traditional injection syringe. However, this design uses a traditional injection syringe to fill the injection drug. , And can not get the exact dose, only suitable for general injection by medical staff, not suitable for carrying out, self-injection or injection requiring quantitative medicament.

In view of the practical difficulties and defects that need to be improved of the conventional injection needles and microneedle syringes, the inventor hopes to provide a breakthrough design to enhance the practical effect. Based on a collection of years of professional technical knowledge and practical experience in designing, manufacturing, and marketing of related products, as well as research and design results, a mini-needle syringe of the present invention has been developed to provide users.

The invention relates to a mini-type microneedle syringe, which mainly includes a microneedle unit, a base, a pressing member, an adjustment cover and a spacer ring, wherein the base is a tube body with a middle hole and is at the bottom of the base A flange portion is formed on the periphery and external threads are formed on the outer surface of the base tube. The aforementioned microneedle unit is provided at the bottom end of the middle hole of the base. The microneedle unit includes a microneedle element and a medicament accommodating element. The element has a plurality of medicine chambers corresponding to the microneedles. At the other end of the middle hole of the base, a set is provided with a pressing member. The top of the pressing member is provided with a reduced outer diameter portion, and an adjustment cap with an internal thread is provided at the top locking group of the base. The adjusting cover has a set of matching holes for the outer diameter reducing part of the top end of the pressing member to pass through the matching holes of the adjusting cover, and a spacer ring is arranged between the adjusting cover and the flange portion of the base to make the adjusting cover and the base When interlocking the group, the spacer ring is used to limit the position of the lock group, and when the adjustment cover is locked, the pressing part on the bottom side of the pressing member is pushed to the top edge position of the medicine chamber contacting the medicine containing component, and the pressing member Body outer diameter and base It is in a slightly tight-fitting state, so the pressing member needs to be pushed to move axially, and the spacer ring is made of silicone material, with appropriate compression to fine-adjust the pressing member by the adjustment cover. The device is made of silicone film, and the micro-needle element includes a substrate and a plurality of micro-needle, which are made of 304 or 316 stainless steel. The size of the micro-needle is about 1.3-2.0mm high and 0.2-0.7 outer diameter. mm, inner diameter 0.1-0.5mm, wall thickness 0.05-0.15mm.

The microneedle element forming method may be any one of sheet metal deep drawing, metal electroforming, stamping, or 3D printing.

The main purpose of the present invention is to have a medicament accommodating chamber which accurately fills a medicine dose, and can achieve the purpose of injecting a quantified medicine.

The second purpose of the invention is mainly a medicament storage room with accurate filling dose and a safe and convenient structure design. It does not require professional medical personnel for injection. It can be suitable for carrying out and self-injection. It is only for one time or discard.式 使用。 Use.

In order to make your reviewers better understand the structural features and effects of the present invention, the drawings are described in detail below.

(1) ‧‧‧base

(11) ‧‧‧Medium

(12) ‧‧‧ flange

(13) ‧‧‧External thread

(2) ‧‧‧Micro Needle Element

(21) ‧‧‧Substrate

(211) ‧‧‧Micro Needle

(22) ‧‧‧Pharmaceutical containing element

(221) ‧‧‧Pharmacy

(3) ‧‧‧Adjustment cover

(31) ‧‧‧Internal thread

(32) ‧‧‧group of holes

(4) ‧‧‧Pressing piece

(41) ‧‧‧Outer diameter

(42) ‧‧‧Outer diameter reduction

(43) ‧‧‧Pushing section

(5) ‧‧‧ spacer ring

The first figure is a combined perspective view of the present invention.

The second figure is an exploded perspective view of the present invention.

The third figure is a combined sectional view of the present invention.

The fourth figure is a perspective view of the microneedle unit of the present invention.

Please refer to the first, second, third, and fourth figures. The present invention relates to a miniature microneedle syringe, which mainly includes a microneedle unit, a base (1), and a pressing member (4). ), An adjustment cover (3) and a spacer ring (5), wherein the base (1) is a pipe body with a middle hole (11), and a flange portion (12) is formed on the peripheral edge of the bottom of the base (1) An external thread (13) is formed on the outer side of the tube of the base (1). The aforementioned microneedle unit is provided at the bottom of the middle hole (11) of the base (1). The microneedle unit includes a microneedle element (2) and a The medicine accommodating element (22) and the microneedle element (2) have a plurality of microneedles (211), and the medicine accommodating element (22) has a plurality of medicine chambers (221) corresponding to the microneedles (211). At the other end of the middle hole (11) of the base (1), a set is provided with a pressing member (4). The top of the pressing member (4) is provided with a reduced outer diameter portion (42). Adjusting cover (3) for thread (31), the adjusting cover (3) has a set of matching holes (32) for the top of the pressing member (4) The reduced diameter portion (42) passes through the matching hole (32) of the adjustment cover (3), and a spacer ring (5) is arranged between the bottom of the adjustment cover (3) and the flange portion (12) of the base (1). When the adjustment cover (3) and the base (1) are locked with each other, the spacer ring (5) is used to limit the position of the adjustment cover (3) and the adjustment cover (3) is locked with the pressing member. (4) the bottom pressing part (43) is pushed to the top edge position of the medicine chamber (221) that contacts the medicine containing component (22), and the outer diameter (41) of the pressing body (4) and the base (1) The hole (11) is in a slightly tight fit state, so the pressing member (4) needs to be subjected to a certain thrust to move axially, and the spacer ring (5) is made of silicone material, with appropriate compression, to The axial displacement of the pressing member (4) can be fine-tuned by adjusting the cover (3). The aforementioned medicine accommodating element (22) is made of silicone film, and the microneedle element (2) includes a substrate (21) and The plurality of microneedles (211) and microneedle elements (2) are made of 304 or 316 series stainless steel. The size of the microneedles (211) is approximately 1.3-2.0mm in height, 0.2-0.7mm in outer diameter, and 0.1-in. 0.5mm, wall thickness 0.05-0.15mm.

The forming method of the substrate (21) and the microneedle (211) of the microneedle element (2) can be any method of sheet metal deep drawing, metal electroforming, stamping or 3D printing.

When the injection is performed, the pressing member (4) is pushed downward, and the pressing portion (43) of the bottom edge of the pressing member (4) presses the medicine chamber (221) of the medicine accommodating element (22). The medicine in the medicine room (221) is pushed out from the microneedle (211) for painless, safe and convenient microneedle injection.

In summary, the present invention has a medicament storage room with accurate filling dose and a structure design that is safe and convenient to operate. It does not require professional medical personnel to inject it. It is used as a disposable or disposable type. It is a very novel, The inventions that are progressive and available for industrial application have indeed met the requirements for granting patents for inventions. They have filed patent applications in accordance with the law. It is still a matter of decency that the reviewing committee can examine and approve the patents in this case at an early date.

The above is only one of the preferred embodiments of the present invention. When the scope of the present invention cannot be limited by it, all equal changes and modifications made in accordance with the scope of the patent application for the present invention should still belong to the invention patent. Covered.

Claims (7)

The utility model relates to a mini-type microneedle syringe, which mainly comprises a microneedle unit, a base, a pressing member, an adjustment cover and a spacer ring, wherein the base is a tube body with a middle hole, and a protrusion is formed on the peripheral edge of the bottom of the base. The edge portion is formed with external threads on the outer surface of the base tube. The microneedle unit is provided at the bottom end of the middle hole of the base. The microneedle unit includes a microneedle element and a medicine containing element. The pressing part has a reduced outer diameter at the top end of the pressing part. The adjusting cap is locked at the top end of the base. The adjusting cap is provided with internal threads. The adjusting cap has a set of matching holes for the outer diameter reducing part of the pressing part to pass through. The matching hole of the adjustment cover is also provided between the bottom of the adjustment cover and the flange portion of the base, and the aforementioned spacer ring is arranged, so that when the adjustment cover and the base are interlocked, the aforementioned spacer ring is used to limit the position of the adjustment cover lock group, and When the adjustment cover is locked, the pressing portion on the bottom side of the pressing member is pushed to the top edge position of the medicine chamber contacting the medicine containing component. The microneedle component includes a substrate and a plurality of microneedles. The medicine containing component has complex With the microneedles corresponding to one of the drug chamber. For example, as described in item 1 of the scope of the patent application, the outer diameter of the main body of the pressing member and the middle hole of the base are in a tight fit state, so the pressing member needs to be subjected to a certain thrust to move axially. For example, the mini-type microneedle syringe described in the first patent application range, wherein the aforementioned spacer ring is made of silicone material and has appropriate compression so that the axial displacement of the pressing member can be fine-tuned by the adjustment cover. As described in item 1 of the scope of the patent application, the mini-type micro-needle syringe, wherein the aforementioned medicine-receiving element is made of a silicone film. As described in item 1 of the scope of the patent application, the miniature microneedle syringe, wherein the substrate and the microneedle of the aforementioned microneedle element are made of 304 or 316 stainless steel. As described in item 1 of the scope of the patent application, the miniature microneedle syringe has a microneedle size of approximately 1.3-2.0mm in height, 0.2-0.7mm in outer diameter, 0.1-0.5mm in inner diameter, and 0.05-0.15mm in wall thickness. For example, the mini-type microneedle syringe described in the first scope of the patent application, wherein the method of forming the substrate and the microneedle of the aforementioned microneedle element can be any method of sheet metal deep drawing, metal electroforming, stamping or 3D printing.