CN212547834U - Subcutaneous indwelling needle assembly - Google Patents
Subcutaneous indwelling needle assembly Download PDFInfo
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- CN212547834U CN212547834U CN201922343688.4U CN201922343688U CN212547834U CN 212547834 U CN212547834 U CN 212547834U CN 201922343688 U CN201922343688 U CN 201922343688U CN 212547834 U CN212547834 U CN 212547834U
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- hose
- needle
- base
- indwelling
- steel needle
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Abstract
The utility model relates to the technical field of medical supplies, in particular to subcutaneous indwelling needle assembly, including keeping somewhere hose and puncture steel needle, wherein: one end of the indwelling hose is provided with a hose base, and one end of the puncture steel needle is provided with a steel needle base; the length of the puncture steel needle is greater than that of the indwelling hose, so that the puncture steel needle can sequentially penetrate through the hose base and the indwelling hose, and the end part of the puncture steel needle is positioned outside the indwelling hose when the steel needle base is abutted against the hose base. According to the technical scheme of the utility model, this subcutaneous indwelling needle subassembly conveniently carries out the subcutaneous operation of keeping somewhere, and can with bottom plate firm in connection, can realize carrying out stable support, safe and reliable more during the use to the fixed connection who keeps somewhere the hose simultaneously to the ware pump of dosing.
Description
Technical Field
The utility model relates to the technical field of medical supplies, in particular to a subcutaneous indwelling needle assembly.
Background
The subcutaneous indwelling needle assembly can be indwelling under the skin of a human body for a short period of time, and frequent puncture operation is not required when liquid medicine is injected, so that pain and fear are reduced. For example, insulin pumps are used to inject insulin into the body using a hypodermic needle assembly.
Insulin pump itself has certain volume and quality, therefore, needs a kind of needle of keeping somewhere, should keep somewhere the needle and can stably fix the insulin pump, can realize the subcutaneous retention again.
SUMMERY OF THE UTILITY MODEL
In view of the above, the main object of the present invention is to provide a hypodermic indwelling needle assembly which can be stably connected to a drug delivery pump while achieving subcutaneous indwelling.
In order to achieve the above object, according to one aspect of the present invention, there is provided a hypodermic indwelling needle assembly comprising an indwelling hose and a puncture steel needle, wherein: a hose base is arranged at one end of the indwelling hose, and a steel needle base is arranged at one end of the puncture steel needle; the length of the puncture steel needle is greater than that of the indwelling hose, so that the puncture steel needle can sequentially penetrate through the hose base and the indwelling hose, and the end part of the puncture steel needle is positioned outside the indwelling hose when the steel needle base is abutted against the hose base.
Optionally, the assembly further comprises a bottom plate, a sleeve protruding out of the upper surface of the bottom plate is arranged on the bottom plate, and a penetrating hole is formed in the bottom plate in the sleeve, so that the puncturing steel needle and the indwelling hose can penetrate through the penetrating hole, and the hose base is clamped with the sleeve.
Optionally, a baffle plate protruding in a direction perpendicular to the axis of the indwelling hose is arranged on the hose base; the baffle plate is larger than the aperture of the through hole and smaller than the size of the inner wall of the sleeve; the inner wall of the sleeve is provided with a limit stop buckle used for being connected with the baffle in a clamping manner, and the hose base is used for being connected with the sleeve in a clamping manner through the baffle and the limit stop buckle.
Optionally, a groove is arranged at one end of the hose base, which is far away from the indwelling hose, and the bottom of the groove is communicated with the indwelling hose; and the groove is filled with a rubber mat.
Optionally, the needle body assembly further comprises a protective shell, wherein the protective shell is cylindrical, one port of the protective shell is closed, and the other port of the protective shell is a clamping interface; when the remaining hose and the puncture steel needle are not connected with the bottom plate, the clamping port of the protective shell is connected with the steel needle base, and the puncture steel needle and the remaining hose are located in the barrel body of the protective shell.
Optionally, the lower surface of the base plate is provided with an adhesive layer for adhering the base plate to the skin of a user.
Optionally, the bottom plate is further provided with a fixing component, the fixing component comprises a cylinder protruding out of the upper surface of the bottom plate, and the cylinder is provided with a clamping hook for connecting the needle assisting device and the drug delivery pump.
Optionally, a raised baffle is arranged at the edge of the upper surface of the bottom plate, and a docking port for connecting the needle assisting device is arranged on the upper surface of the bottom plate and/or the baffle.
Optionally, one end of the steel needle base, which is connected with the puncture steel needle, is provided with a limiting groove, and one end of the hose base, which is far away from the indwelling hose, is arranged in the limiting groove; one end of the steel needle base, which is far away from the puncture steel needle, is provided with an annular buckle which is convex along the direction vertical to the axis of the puncture steel needle.
Optionally, the base plate is rectangular.
According to the technical scheme of the utility model, in the using state, the puncture steel needle and the indwelling hose are placed under the skin of a user by using the needle assisting device, and the hose base is used for connecting the bottom plate; during injection, the whole body of a drug administration pump (such as an insulin pump) is connected with the bottom plate, the needle body is inserted into the indwelling hose, and the pump body of the drug administration pump is started to inject insulin into a human body;
this subcutaneous needle subassembly of keeping somewhere conveniently carries out the subcutaneous operation of keeping somewhere, and can with bottom plate firm in connection, can realize the fixed connection to keeping somewhere the hose, can carry out stable support to dosing ware pump simultaneously, safe and reliable more during the use.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
fig. 1 is an exploded view of a needle assembly provided in accordance with an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bottom plate provided in an embodiment of the present invention;
FIG. 3 is a schematic structural view of the connection between the hose and the bottom plate according to the embodiment of the present invention;
fig. 4 is a sectional view of the indwelling hose of fig. 3.
In the figure:
1: a hose is left; 2: puncturing a steel needle; 3: a hose base; 4: a steel needle base; 5: a base plate; 6: a protective shell; 31: a first baffle plate; 32: a rubber pad; 41: an annular buckle; 51: a sleeve; 52: a limit stop buckle; 53: an adhesive layer; 54: a fixing assembly; 55: a second baffle; 56: and (6) connecting the interfaces.
Detailed Description
As shown in fig. 1-4, the embodiment of the present invention provides a subcutaneous indwelling needle assembly, comprising a needle assembly and a base plate 5; the needle body component comprises a retention hose 1 and a puncture steel needle 2, wherein a hose base 3 is arranged at one end of the retention hose 1, and a steel needle base 4 is arranged at one end of the puncture steel needle 2; the puncture steel needle 2 sequentially penetrates through the hose base 3 and the indwelling hose 1, and the steel needle base 4 is abutted against the hose base 3; the bottom plate 5 is provided with a sleeve 51 protruding out of the upper surface of the bottom plate 5, the bottom plate 5 in the sleeve 51 is provided with a through hole, the puncture steel needle 2 and the indwelling hose 1 pass through the through hole, and the hose base 3 is clamped with the sleeve 51.
The hypodermic indwelling needle assembly mainly comprises two parts, one part is a needle body assembly, the other part is a bottom plate 5, the needle body assembly can be indwelling under the skin, and meanwhile, the needle body assembly can be fixedly connected with the bottom plate 5; when the bottom plate 5 can be connected with the needle body assembly, the needle body assembly can be conveniently connected with human skin, a needle assisting device and a drug delivery pump, and the drug delivery pump can be equipment such as an insulin pump, and the following insulin pump is taken as an example.
In the embodiment of the utility model, the hose base 3 is provided with a baffle 31 protruding along the axial direction of the vertical indwelling hose 1; the outer diameter of the baffle 31 is larger than the size of the exit hole and smaller than the inner wall size of the sleeve 51; the inner wall of the sleeve 51 is provided with a limit stop buckle 52 for being clamped with the baffle 31, the hose base 3 and the sleeve 51 are clamped with the limit stop buckle 52 through the baffle 31, wherein the cross section of the sleeve 51 can be circular, square, triangular and the like, and generally, the shape of the sleeve 51 is matched with that of the hose base 3.
A plurality of limit stop buckles 52 are arranged on the inner wall of the sleeve 51 along the circumferential direction, the limit stop buckles 52 form a limit part, the diameter of an opening formed in the middle of the limit stop buckles is smaller than that of the baffle 31, when the needle body assembly is connected with the bottom plate 5, auxiliary operation is carried out through a needle assisting device, the needle assisting device applies external force (thrust with certain strength) to the needle body assembly, the baffle 31 overcomes the opening formed by the limit stop buckles 52, and finally the baffle 31 is clamped in a gap between the limit stop buckles 52 and the bottom plate 5 penetrating out of the hole part, so that the hose base 3 is clamped; at this point, a fixed connection of the needle assembly to the base plate 5 is achieved.
In this embodiment, preferably, a groove is formed at one end of the hose base 3 away from the indwelling hose 1, and the bottom of the groove is communicated with the indwelling hose 1; the groove is filled with a rubber pad 32, and the puncture steel needle 2 sequentially penetrates through the rubber pad 32 and the retention hose 1. The cushion 32 is soft material, and possesses certain elasticity, and the needle body of convenient puncture steel needle 2 and insulin pump passes, simultaneously, passes partial cushion 32 and extrudes the needle body of puncture steel needle 2 or insulin pump, reaches sealed effect.
When the needle body assembly is operated in a needle inserting mode, the indwelling hose 1 needs to be injected subcutaneously by the aid of the puncture steel needle 2, the hose base 3 and the steel needle base 4 are in a relative installation relation, preferably, a limiting groove is formed in one end, connected with the puncture steel needle 2, of the steel needle base 4, and one end, far away from the indwelling hose 1, of the hose base 3 is arranged in the limiting groove; one end of the steel needle base 4 far away from the puncture steel needle 2 is provided with an annular buckle 41 protruding along the direction vertical to the axis of the puncture steel needle 2. The puncture steel needle 2 penetrates through the rubber mat 32 and penetrates into the indwelling hose 1, then the tail end of the hose base 3 is clamped into the limiting groove, and the installation position of the puncture steel needle 2 is correct (the end part of the puncture steel needle 2 penetrates out of the indwelling hose 1); the other end of the steel needle base 4 is provided with an annular buckle 41, and the annular buckle 41 is used for connecting the needle assisting device. The needle body component is connected to the bottom plate 5 by the needle assisting device, and during the connection operation, the needle body component is firstly connected with the needle assisting device, wherein the annular buckle 41 is used for connecting with the needle assisting device, and then the needle assisting device applies force to the steel needle base 4 to complete the connection of the needle body component and the base and the subcutaneous puncture.
In the embodiment of the utility model, in order to avoid the exposure of the sharp part in the needle body component when not in use, the needle body component also comprises a protective shell 6, the protective shell 6 is in a tubular shape, one end of the protective shell is closed, and the other end is a clamping interface; when the indwelling hose 1 and the puncture steel needle 2 are not connected with the bottom plate 5, the clamping interface of the protective shell 6 is connected with the steel needle base 4, and the puncture steel needle 2 and the indwelling hose 1 are positioned in the cylinder body of the protective shell 6. The protective case 6 may be cylindrical, prismatic, or the like, and may have any shape as long as it can accommodate the puncture needle 2 and the indwelling hose 1. The clamping interface of the protective shell 6 and the steel needle base 4 can be connected in a manner of interference fit, buckle connection, threaded connection and the like.
The embodiment of the utility model provides an in, bottom plate 5 need fix on human skin, and in order to reach effective stable fixed, bottom plate 5's lower surface has the area adhesive linkage 53 that the area is greater than bottom plate 5 lower surface for on bonding bottom plate 5 to user's skin. The bottom plate 5 is adhered to the upper surface of the adhesive layer 53, the lower surface of the adhesive layer 53 is provided with the adhesive material, when the adhesive device is not used, the adhesive material on the lower surface of the bottom plate 5 is attached with the sticker, and when the adhesive device is used, the sticker is taken off, and the adhesive material is adhered to the skin of a human body. Preferably, the adhesive layer 53 is a medical adhesive tape, and the medical adhesive tape has a porous structure, so that the adhesive layer has a good heat dissipation effect and is helpful for improving the comfort of a user.
Preferably, the bottom plate 5 is further provided with a fixing component 54, the fixing component 54 comprises a column body protruding from the upper surface of the bottom plate 5, and the column body is provided with a hook for connecting the needle assisting device and the insulin pump.
The fixing component 54 comprises a raised hook structure, a clamping device matched with the hook is arranged on the needle assistor or the insulin pump, and the needle assistor or the insulin pump is fixedly connected with the hook on the bottom plate 5 by the clamping device, so that the needle assistor or the insulin pump is connected at the correct position and stable connection is realized.
In the embodiment of the present invention, the edge of the upper surface of the bottom plate 5 is provided with a raised baffle 55, and the baffle 55 and/or the upper surface of the bottom plate 5 is provided with a docking port 56 for connecting the needle assisting device. The raised baffle 55 and the interface 56 have a certain limiting effect on the needle booster, and position deviation is avoided when the needle body assembly is installed. Preferably, the interfaces 56 are respectively arranged at different positions on the baffle 55 and the upper surface of the bottom plate 5, so that the needle assisting device is suitable for needle aids of different models, and the universality of the hypodermic indwelling needle assembly is improved. In the embodiment of the present invention, the shape of the bottom plate 5 is adapted to the shape of the insulin pump and the needle assisting device, for example, the bottom plate 5 is rectangular.
The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hypodermic indwelling needle assembly comprising an indwelling hose (1) and a piercing steel needle (2), wherein:
one end of the indwelling hose (1) is provided with a hose base (3), and one end of the puncture steel needle (2) is provided with a steel needle base (4);
the length of the puncture steel needle (2) is larger than that of the indwelling hose (1), so that the puncture steel needle (2) can sequentially penetrate through the hose base (3) and the indwelling hose (1), and the end part of the puncture steel needle (2) is positioned outside the indwelling hose (1) when the steel needle base (4) is abutted against the hose base (3).
2. The hypodermic needle assembly of claim 1, further comprising a base plate (5);
the bottom plate (5) is provided with a sleeve (51) protruding out of the upper surface of the bottom plate (5), and the bottom plate (5) in the sleeve (51) is provided with a through hole, so that the puncture steel needle (2) and the indwelling hose (1) can pass through the through hole and the hose base (3) is clamped with the sleeve (51).
3. The hypodermic needle indwelling assembly according to claim 2, wherein the hose base (3) is provided with a first baffle (31) projecting in a direction perpendicular to the axis of the indwelling hose (1);
the outer diameter of the first baffle (31) is larger than the size of the through hole and smaller than the size of the inner wall of the sleeve (51); the inner wall of the sleeve (51) is provided with a limiting blocking buckle (52) which is used for being clamped with the first baffle (31) and used for enabling the hose base (3) and the sleeve (51) to be clamped with the limiting blocking buckle (52) through the first baffle (31).
4. The subcutaneous indwelling needle assembly of claim 3,
a groove is formed in one end, away from the indwelling hose (1), of the hose base (3), and the bottom of the groove is communicated with the indwelling hose (1);
the groove is filled with a rubber pad (32).
5. The hypodermic needle indwelling assembly according to claim 2, further comprising a protective casing (6), wherein the protective casing (6) is cylindrical, one port of the protective casing is closed, and the other port is a clamping interface;
when the remaining hose (1) and the puncture steel needle (2) are not connected with the bottom plate (5), the clamping port of the protective shell (6) is connected with the steel needle base (4), and the puncture steel needle (2) and the remaining hose (1) are positioned in the cylinder body of the protective shell (6).
6. Hypodermic needle assembly according to claim 2, wherein the lower surface of the base plate (5) is provided with an adhesive layer (53) for adhering the base plate (5) to the skin of a user.
7. Hypodermic needle assembly according to claim 2, wherein the base plate (5) further comprises a fastening member (54), the fastening member (54) comprising a post projecting from the upper surface of the base plate (5), the post being provided with a catch for connecting the needle aid and the administration pump.
8. Hypodermic needle assembly according to claim 2, wherein the edge of the upper surface of the base plate (5) is provided with a raised second stop (55), and the upper surface of the base plate (5) and/or the second stop (55) is provided with a docking port (56) for connection to a needle aid.
9. The hypodermic indwelling needle assembly according to any one of claims 1 to 8, wherein the end of the steel needle base (4) connected to the puncture steel needle (2) is provided with a limiting groove, and the end of the hose base (3) far away from the indwelling hose (1) is arranged in the limiting groove;
one end of the steel needle base (4) far away from the puncture steel needle (2) is provided with an annular buckle (41) which is convex along the direction vertical to the axis of the puncture steel needle (2).
10. Hypodermic needle assembly according to claim 2, wherein the base plate (5) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343688.4U CN212547834U (en) | 2019-12-24 | 2019-12-24 | Subcutaneous indwelling needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343688.4U CN212547834U (en) | 2019-12-24 | 2019-12-24 | Subcutaneous indwelling needle assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212547834U true CN212547834U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922343688.4U Active CN212547834U (en) | 2019-12-24 | 2019-12-24 | Subcutaneous indwelling needle assembly |
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| Country | Link |
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| CN (1) | CN212547834U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065713A1 (en) * | 2021-10-19 | 2023-04-27 | 阿瑞医疗(广东)有限公司 | Vertical indwelling needle assembly and base structure thereof |
| WO2023142737A1 (en) * | 2022-01-26 | 2023-08-03 | 微泰医疗器械(杭州)股份有限公司 | Waterproof indwelling needle system and method for using same |
| WO2023206792A1 (en) * | 2022-04-29 | 2023-11-02 | 深圳市阿瑞医疗电子有限公司 | Indwelling subcutaneous catheter assembly |
-
2019
- 2019-12-24 CN CN201922343688.4U patent/CN212547834U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065713A1 (en) * | 2021-10-19 | 2023-04-27 | 阿瑞医疗(广东)有限公司 | Vertical indwelling needle assembly and base structure thereof |
| WO2023142737A1 (en) * | 2022-01-26 | 2023-08-03 | 微泰医疗器械(杭州)股份有限公司 | Waterproof indwelling needle system and method for using same |
| WO2023206792A1 (en) * | 2022-04-29 | 2023-11-02 | 深圳市阿瑞医疗电子有限公司 | Indwelling subcutaneous catheter assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 108, Liuze Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Weitai medical device (Hangzhou) Co.,Ltd. Address before: 4 / F, building 3, No.9 Haishu Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: MICRO TECH MEDICAL (HANGZHOU) Co.,Ltd. |
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| CP03 | Change of name, title or address |