CN111317887B - Remaining needle protection piece, medicine storage device needle head protection piece and needle head protection assembly - Google Patents
Remaining needle protection piece, medicine storage device needle head protection piece and needle head protection assembly Download PDFInfo
- Publication number
- CN111317887B CN111317887B CN202010093310.8A CN202010093310A CN111317887B CN 111317887 B CN111317887 B CN 111317887B CN 202010093310 A CN202010093310 A CN 202010093310A CN 111317887 B CN111317887 B CN 111317887B
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- Prior art keywords
- needle
- plate
- storage device
- joint
- insulin pump
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
- A61M5/1626—Needle protectors therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
Abstract
The invention relates to the technical field of medical supplies, in particular to an indwelling needle protection piece, a medicine storage device needle head protection piece and a needle head protection assembly, wherein the needle head protection assembly comprises an indwelling needle protection piece and a medicine storage device needle head protection piece, and the indwelling needle protection piece can be clamped with the medicine storage device needle head protection piece; during the joint, first flat board and the laminating of second flat board, and the second safety cover holds in first safety cover, and the coupler body colludes on the joint is protruding, and when external force exerted in as lever one end when pressing the hand position, the joint of the lever other end is protruding to separate with the coupler body. According to the technical scheme of the invention, the needle head protection assembly is used for temporarily protecting the exposed remaining needle and the needle head of the medicine storage device, so that the needle head is prevented from being in direct contact with the outside, and the damage and pollution of foreign objects to the needle head are reduced.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to an indwelling needle protection piece, a medicine storage device needle head protection piece and a needle head protection assembly.
Background
The insulin pump has the basic function of simulating the secretion function of pancreas, continuously injects insulin to the subcutaneous of a user at regular intervals according to the dosage required by the human body, keeps the blood sugar stable all day long and achieves the aim of controlling diabetes. The existing insulin pump mainly comprises a drug feeder and a drug storage device, wherein the drug feeder is a driving part, the drug storage device is extruded by a driving device, and insulin in the drug storage device is continuously extruded to the subcutaneous part of a user.
The insulin pump is matched with the bottom plate for use; the insulin pump comprises a drug feeder and a drug storage device, wherein the drug storage device comprises a drug storage device needle; the bottom plate is pasted on the skin of a human body and is connected with a subcutaneous indwelling needle; during the use, the insulin pump is installed on the bottom plate, and both are for dismantling the connection, and in the medicine storage device syringe needle penetrated the remaining needle, utilized the pump body, lasted or intermittently injected insulin into the human body.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an indwelling needle protection device, a drug storage device needle protection device and a needle protection device, which are helpful for temporarily protecting the indwelling needle device and the drug storage device needle from damage and contamination.
To achieve the above object, according to one aspect of the present invention, there is provided an indwelling needle protector comprising a first protector and a first plate; the side wall of the first protective cover is connected with the first flat plate, and the opening of the first protective cover is flush with the lower surface of the first flat plate, so that the side wall of the first protective cover can be simultaneously attached to the upper surface of the bottom plate in the indwelling needle assembly with the lower surface; the first protective cover is provided at a position of the indwelling needle protecting member corresponding to a position of the indwelling needle on the bottom plate so that the exposed portion of the indwelling needle is accommodated in the first protective cover when the fitting is performed.
Optionally, the first plate comprises a main body part and a strip-shaped pressing part positioned on one side of the main body part, a gap is arranged between the main body part and the strip-shaped pressing part, and an elastic connection point between the main body part and the strip-shaped pressing part is positioned in the middle of the pressing part so as to form a lever structure, and the connection point is a fulcrum of the lever; wherein, the joint is protruding to locate lever structure's both ends respectively with pressing the hand position to the joint is protruding to be corresponding in the position of first flat board and the position of pothook on the bottom plate, thereby is carrying out during the laminating, the pothook colludes in the joint is protruding, and when external force exerted in the hand position of pressing as lever one end, the joint of the lever other end is protruding to separate with the pothook.
Optionally, the bottom inside the first protective cover is provided with a rubber pad which abuts against the exposed part of the indwelling needle when said fitting is performed.
According to another aspect of the present invention, there is provided a drug reservoir needle protector comprising a second protective cover and a second plate; the upper surface of the second flat plate is used for being attached to an insulin pump, and the second protective cover is arranged on the upper surface of the second flat plate; the position of the second protective cover in the medicament reservoir needle protection corresponds to the position of the medicament reservoir needle in the insulin pump, so that the medicament reservoir needle is accommodated in the second protective cover during the application.
Optionally, the upper surface of the second plate is further provided with a hook, and the position of the hook on the second plate corresponds to the position of the buckle component on the insulin pump, so that the hook hooks on the buckle component when the fitting is performed.
Optionally, the edge of the second flat plate is provided with a limiting protrusion protruding from the upper surface, and the limiting protrusion and the second flat plate form a limiting groove corresponding to the outer contour of the insulin pump; when carrying out the laminating, the insulin pump is arranged in the spacing inslot, and insulin pump lateral wall and spacing protruding laminating.
According to another aspect of the present invention, there is provided a needle protection assembly comprising the above-mentioned indwelling needle protector and the above-mentioned drug reservoir needle protector.
According to a further aspect of the invention, a needle protection assembly is provided, comprising the indwelling needle protection member and the drug reservoir needle protection member, wherein the indwelling needle protection member can be clamped with the drug reservoir needle protection member; during the joint, first flat board and the laminating of second flat board, and the second safety cover holds in first safety cover, and the coupler body colludes on the joint is protruding, and when external force exerted in as lever one end when pressing the hand position, the joint of the lever other end is protruding to separate with the coupler body.
Optionally, a first limiting structure is arranged at one end of the first flat plate, and a second limiting structure is arranged on the limiting protrusion of the second flat plate; the position of the second limiting structure on the second flat plate corresponds to the position of the first limiting structure on the first flat plate, and the first limiting structure is clamped on the second limiting structure during clamping.
According to the technical scheme of the invention, the needle head protection assembly comprises a remaining needle protection piece and a medicine storage device needle head protection piece, after the insulin pump is separated (such as operations of supplementing liquid medicine, replacing a battery and the like), the lower surface of the first flat plate is attached to the bottom plate, and the first protection cover covers the exposed part of the remaining needle; the upper surface of the second flat plate is attached to the insulin pump, and the second protective cover covers the needle head of the drug storage device.
The needle head protection assembly is used for temporarily protecting the exposed needle head of the indwelling needle and the medicine storage device, and the needle head is prevented from directly contacting with the outside, so that the damage and the pollution of foreign matters to the needle head are reduced.
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 a schematic view showing the structure of an indwelling needle protector;
FIG. 2 is a schematic view showing the attachment of the indwelling needle protector to the base plate;
FIG. 3 is a schematic view showing the structure of the indwelling needle protector after it is mounted on the base plate;
FIG. 4 is a schematic view of the structure of the needle guard of the drug reservoir;
FIG. 5 is a schematic view of the mounting of the drug reservoir needle protector and insulin pump;
FIG. 6 is a schematic view of the drug reservoir needle guard installed with the insulin pump;
FIG. 7 is a schematic view of the mounting of the retaining needle protector and the drug reservoir needle protector;
FIG. 8 is a schematic view of the structure of the indwelling needle guard and the drug reservoir needle guard after they are installed.
In the figure:
1: an indwelling needle protector; 2: a medicament reservoir needle protector; 3: a base plate; 4: an insulin pump; 11: a first protective cover; 12: a first plate; 13: a first limit structure; 121: a body portion; 122: a pressing portion; 123: pressing the hand position; 21: a second protective cover; 22: a second plate; 23: a hook body; 24: a limiting bulge; 25: a second limit structure; 31: an indwelling needle; 32: a hook.
Detailed Description
As shown in fig. 1 to 3, the present embodiment provides a needle tip protecting assembly comprising a retaining needle protector 1, the retaining needle protector 1 having a first protector 11 and a first plate 12; the side wall of the first protective cover 11 is connected with the first flat plate 12, and the opening of the first protective cover 11 is flush with the lower surface of the first flat plate 12, so that the lower surface can be simultaneously attached to the upper surface of the bottom plate 3 in the indwelling needle assembly; the position of the first protection cap 11 in the indwelling needle protector 1 corresponds to the position of the indwelling needle 31 in the bottom plate 3 so that the exposed portion of the indwelling needle 31 is accommodated within the first protection cap 11 when fitting is performed.
In this embodiment, the first plate 12 includes a main body portion 121 and a strip-shaped pressing portion 122 located on one side of the main body portion 121 with a space therebetween, and a connection point with elasticity between the two is located in the middle of the pressing portion 122 to form a lever structure, and the connection point is a fulcrum of the lever; wherein, the clamping protrusion (not shown in the figure) and the pressing hand position 123 are respectively arranged at two ends of the lever structure, and the position of the clamping protrusion on the first plate 12 corresponds to the position of the hook 32 on the bottom plate 3, so that when the fitting is performed, the hook 32 is hooked on the clamping protrusion, and when an external force is applied to the pressing hand position 123 as one end of the lever, the clamping protrusion at the other end of the lever is separated from the hook 32.
Insulin pump 4 need separate insulin pump 4 (medicine storage device, battery, ware of dosing) and bottom plate 3 when carrying out operations such as medicine storage device renewal, change battery, the syringe needle of medicine storage device during the separation with keep somewhere needle 31 separation, at this moment, keep somewhere the partial base of needle 31 and the syringe needle of medicine storage device and expose. The needle protection assembly of this embodiment is designed for the exposed portion, and can temporarily protect the needle when the insulin pump 4 is separated from the bottom plate 3 of the indwelling needle 31.
As shown in fig. 2 and 3, first, one end of the first plate 12 is obliquely inserted into the bottom plate 3, the bottom plate 3 is provided with a corresponding limiting structure, the limiting structure forms a groove-shaped structure, and the end of the first plate 12 is inserted into the groove-shaped structure; thereafter, the other end of the first plate 12, i.e., the end provided with the first protector 11 is pressed, and the first protector 11 is covered on the exposed portion of the indwelling needle 31 while the hook 32 is hooked on the catching projection, and at this time, the mounting of the indwelling needle protector 1 is completed.
When the indwelling needle protector 1 needs to be removed from the base plate 3, a force is manually applied to the pressing hand 123 of the pressing portion 122, and the latch protrusion at the end away from the pressing hand 123 is separated from the hook 32 by the lever principle, so that the indwelling needle protector 1 can be separated from the base plate 3. Preferably, symmetrical pressing hand positions 123 are provided on the body part 121 and the pressing part 122 to facilitate the pressing operation; the connection point may be formed of a resilient structure, such as a U-shaped rigid structure, which is made of the same material as the main body 121 and the pressing portion 122, or a resilient device such as a torsion spring may be used as the resilient structure.
In this embodiment, a rubber pad (not shown) is disposed at the bottom of the first protection cover 11, and when the first protection cover is attached to the first protection cover, the rubber pad abuts against the exposed portion of the retaining pin 31, so as to prevent a gap from occurring, and further improve the protection effect.
4-6, the present embodiment provides a reservoir needle protector 2, the reservoir needle protector 2 having a second shield 21 and a second plate 22; the upper surface of the second flat plate 22 is used for being attached to the insulin pump 4, and the second protective cover 21 is arranged on the upper surface of the second flat plate 22; the position of the second protective cover 21 in the reservoir needle protection 2 corresponds to the position of the reservoir needle (not shown) in the insulin pump 4, so that the reservoir needle is accommodated in the second protective cover 21 when the fitting is performed.
Wherein, the upper surface of the second plate 22 is further provided with a hook 23, and the position of the hook 23 on the second plate 22 corresponds to the position of a buckle component (not shown in the figure) on the insulin pump 4, so that the hook 23 is hooked on the buckle component when the engagement is performed. The hook 23 is used to connect a snap-fit assembly on the insulin pump 4 to secure the insulin pump 4 to the drug reservoir needle protector 2. Preferably, the edge of the second plate 22 is provided with a limiting protrusion 24 protruding from the upper surface, and the limiting protrusion 24 and the second plate 22 form a limiting groove corresponding to the outer contour of the insulin pump 4; when laminating, insulin pump 4 is arranged in the spacing inslot, and insulin pump 4 lateral wall and spacing arch 24 laminating. Its size of spacing groove that spacing arch 24 formed is corresponding with insulin pump 4's size, but insulin pump 4 joint is in this spacing inslot promptly, utilizes the spacing groove can further restrict insulin pump 4's position, and does benefit to quick joint operation.
As shown in fig. 5 and 6, when the drug storage device needle protector 2 is installed, one end of the insulin pump 4 is first inserted into the drug storage device needle protector 2 in an inclined manner, and then the other end of the insulin pump 4 is pressed to insert the second protective cover 21 into the groove where the needle of the insulin pump 4 is located, so that the second protective cover 21 covers the needle of the insulin pump 4 to form a protective structure. Meanwhile, the buckle component on the insulin pump 4 is synchronously clamped on the hook body 23, and the installation operation between the insulin pump 4 and the needle protector 2 of the medicine storage device is completed. When the insulin pump 4 needs to be removed, the snap-fit component on the insulin pump 4 is pulled to be separated from the hook body 23, and then the insulin pump 4 is manually taken down.
The needle protection assembly provided by the embodiment comprises an indwelling needle protection piece 1 and a drug reservoir needle protection piece 2, and when the needle protection assembly is used, the needle protection assembly is connected to a bottom plate 3 of an indwelling needle 31, the drug reservoir needle protection piece 2 is connected with an insulin pump 4, and when an insulin injection operation is carried out, the insulin pump 4 is connected to the bottom plate 3 of the indwelling needle 31, so that the needle protection assembly and the drug reservoir needle protection piece 2 have an adaptive relation, namely, can be connected with each other.
As shown in fig. 7 and 8, the indwelling needle protector 1 can be snapped with the drug reservoir needle protector 2; when the joint, first flat board 12 and the laminating of second flat board 22, and second safety cover 21 holds in first safety cover 11, and coupler 23 colludes on the joint is protruding, and when external force exerted in the hand position 123 of pressing as lever one end, the joint of the lever other end was protruding and is separated with coupler 23.
In this embodiment, in order to facilitate the clamping connection of the remaining needle protection member 1 and the needle head protection member 2 of the drug storage device, the limiting structures are respectively arranged on the remaining needle protection member 1, that is, a first limiting structure 13 is arranged at one end of the first flat plate 12, and a second limiting structure 25 is arranged on the limiting protrusion 24 of the second flat plate 22; the position of the second limiting structure 25 on the second plate 22 corresponds to the position of the first limiting structure 13 on the first plate 12, and when clamping is carried out, the first limiting structure 13 is clamped on the second limiting structure 25.
Wherein, be equipped with the limit structure the same with first limit structure 13 on the insulin pump 4, be equipped with the limit structure the same with second limit structure 25 on the bottom plate 3 of lieing in the needle 31, when first flat board 12 is connected with bottom plate 3, when the second flat board 22 is connected with insulin pump 4, usable first limit structure 13 and second limit structure 25 carry out spacing connection equally.
The above-described embodiments should not be construed as limiting the scope of the 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 (9)
1. An indwelling needle protector comprising a first protective shield (11) and a first plate (12);
the first protective cover (11) is in a cylindrical shape with a closed top end, the side wall of the first protective cover (11) is connected with the first flat plate (12), and the opening of the first protective cover (11) is flush with the lower surface of the first flat plate (12), so that the first protective cover can be simultaneously attached to the upper surface of the bottom plate (3) in the indwelling needle assembly with the lower surface;
the first protective cover (11) corresponds in position to the indwelling needle (31) on the bottom plate (3) in the indwelling needle protector (1) so that the exposed portion of the indwelling needle (31) is received within the first protective cover (11) when the fitting is performed.
2. The indwelling needle guard according to claim 1, wherein the first plate (12) includes a main portion (121) and a strip-shaped pressing portion (122) on one side of the main portion (121) with a space therebetween, and a connection point with elasticity between the two is located in the middle of the pressing portion (122) to form a lever structure, the connection point being a fulcrum of the lever;
wherein, the both ends of lever structure are located respectively to joint arch and pressing hand position (123) to the joint is protruding corresponding in the position of first flat board (12) and pothook (32) on bottom plate (3) position on the bottom plate, thereby is carrying out during the laminating, pothook (32) collude on the joint is protruding, and when external force exerted in pressing hand position (123) as lever one end, the joint of the lever other end is protruding to be separated with pothook (32).
3. The protector of the indwelling needle according to claim 1 or claim 2, wherein the bottom inside the first protective shield (11) is provided with a rubber pad which, when said engagement is made, abuts against the exposed part of the indwelling needle (31).
4. A drug reservoir needle protector comprising a second protective cover (21) and a second plate (22);
the upper surface of the second flat plate (22) is used for being attached to the insulin pump (4), and the second protective cover (21) is arranged on the upper surface of the second flat plate (22);
the second safety cover (21) is cylindrical with a closed bottom end, and the position of the second safety cover (21) on the medicine storage device needle protection piece (2) corresponds to the position of the medicine storage device needle on the insulin pump (4), so that the medicine storage device needle is contained in the second safety cover (21) during the fitting process.
5. Medicine reservoir needle protector according to claim 4, characterized in that the upper surface of the second plate (22) is further provided with hooks (23), the position of the hooks (23) on the second plate (22) corresponding to the position of the snap assembly on the insulin pump (4), such that the hooks (23) hook onto the snap assembly when said engagement is performed.
6. The drug reservoir needle protector as claimed in claim 4 or 5, characterized in that the edge of the second plate (22) is provided with a limiting protrusion (24) protruding from the upper surface, the limiting protrusion (24) and the second plate (22) form a limiting groove corresponding to the outer contour of the insulin pump (4);
when carrying out during the laminating, spacing inslot is arranged in insulin pump (4), and insulin pump (4) lateral wall and spacing arch (24) laminating.
7. A needle protection assembly comprising an indwelling needle protector (1) according to any one of claims 1 to 3 and a reservoir needle protector (2) according to any one of claims 4 to 6.
8. A needle protection assembly, comprising an indwelling needle protection (1) according to claim 2 and a reservoir needle protection (2) according to claim 5, the indwelling needle protection (1) being snappable with the reservoir needle protection (2);
during the joint, first dull and stereotyped (12) and the laminating of second flat board (22), and second safety cover (21) hold in first safety cover (11), and coupler body (23) collude on the joint is protruding, and when external force exerted in the hand position of pressing as lever one end, the joint of the lever other end is protruding to separate with coupler body (23).
9. A needle protection assembly according to claim 8, characterised in that the first plate (12) is provided at one end with a first stop formation (13) and the second plate (22) is provided at a stop projection (24) with a second stop formation (25);
the position of the second limiting structure (25) on the second flat plate (22) corresponds to the position of the first limiting structure (13) on the first flat plate (12), and the first limiting structure (13) is clamped on the second limiting structure (25) during clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010093310.8A CN111317887B (en) | 2020-02-14 | 2020-02-14 | Remaining needle protection piece, medicine storage device needle head protection piece and needle head protection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010093310.8A CN111317887B (en) | 2020-02-14 | 2020-02-14 | Remaining needle protection piece, medicine storage device needle head protection piece and needle head protection assembly |
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| Publication Number | Publication Date |
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| CN111317887A CN111317887A (en) | 2020-06-23 |
| CN111317887B true CN111317887B (en) | 2022-03-22 |
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| CN202010093310.8A Active CN111317887B (en) | 2020-02-14 | 2020-02-14 | Remaining needle protection piece, medicine storage device needle head protection piece and needle head protection assembly |
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| CN (1) | CN111317887B (en) |
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| CN206518747U (en) * | 2014-04-24 | 2017-09-26 | 贝克顿·迪金森公司 | Catheter insertion apparatus |
| CN108014394A (en) * | 2018-01-18 | 2018-05-11 | 北京聚精瑞生医疗科技有限公司 | A kind of guarantor's wrist protection paste suitable for indwelling trocar |
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| US5350393A (en) * | 1992-01-06 | 1994-09-27 | Inbae Yoon | Safety trocar penetrating instrument |
| WO2007098771A2 (en) * | 2006-02-28 | 2007-09-07 | Unomedical A/S | Inserter for infusion part and infusion part provided with needle protector |
| WO2009125398A2 (en) * | 2008-04-09 | 2009-10-15 | Medingo Ltd. | Systems, devices and methods for fluid delivery |
| US8979808B1 (en) * | 2013-10-14 | 2015-03-17 | Medtronic Minimed, Inc. | On-body injector and method of use |
| CN107173323A (en) * | 2017-06-27 | 2017-09-19 | 嘉兴诺摩宠物用品有限公司 | Pet box with artificial light |
| CN108295335A (en) * | 2018-01-26 | 2018-07-20 | 美敦力公司 | Sticking type fluid infusion apparatus and infusion needle protector |
| CN110115784A (en) * | 2018-02-05 | 2019-08-13 | 郑州瑞宇科技有限公司 | A kind of insulin pump extrusion infusing pipeline |
| CN209108284U (en) * | 2018-08-23 | 2019-07-16 | 深圳市前海领创智能科技有限公司 | Pasting type duct free insulin pump |
| CN209464429U (en) * | 2018-09-13 | 2019-10-08 | 南京脑科医院 | A kind of insulin pump injection site protector |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206518747U (en) * | 2014-04-24 | 2017-09-26 | 贝克顿·迪金森公司 | Catheter insertion apparatus |
| CN108014394A (en) * | 2018-01-18 | 2018-05-11 | 北京聚精瑞生医疗科技有限公司 | A kind of guarantor's wrist protection paste suitable for indwelling trocar |
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| CN111317887A (en) | 2020-06-23 |
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