CN111053959A - Nondestructive needle assembly for infusion port and infusion port injection maintenance method - Google Patents
Nondestructive needle assembly for infusion port and infusion port injection maintenance method Download PDFInfo
- Publication number
- CN111053959A CN111053959A CN201911424853.7A CN201911424853A CN111053959A CN 111053959 A CN111053959 A CN 111053959A CN 201911424853 A CN201911424853 A CN 201911424853A CN 111053959 A CN111053959 A CN 111053959A
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- Prior art keywords
- needle
- hole
- port
- hollow needle
- base
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- 238000001802 infusion Methods 0.000 title claims abstract description 30
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012423 maintenance Methods 0.000 title claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 239000003814 drug Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000001066 destructive effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009933 burial Methods 0.000 abstract description 2
- 230000000474 nursing effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 244000241796 Christia obcordata Species 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Images
Classifications
-
- 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
-
- 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 central venous catheterization and nursing, in particular to a nondestructive needle assembly for an infusion port and an infusion port injection maintenance method, wherein the nondestructive needle assembly comprises a base and a hollow needle; the base comprises a flexible rear cover, a base and a soft rubber pad; the base is provided with a first hole, a second hole, a third hole and a medicine storage cavity; the cavity needle sets up store up the medicine intracavity, cavity needle afterbody with the lid links to each other behind the flexibility, cavity needle head pierces in the soft cushion, but does not pierce through. The invention has the beneficial effects that: no incision is formed, and the damage to the bacteria-resistant soft rubber of the transfusion port is small when the transfusion port is punctured; the penetration depth of the hollow needle can be adjusted along with the pushing depth of the flexible rear cover, so that the hollow needle can adapt to patients with different burial depths; the flexible rear cover is arranged, so that the movable part is completely isolated from the outside, and secondary pollution is avoided; the limiting sheet is arranged, so that the hollow needle can be prevented from being separated by being pushed excessively; the operation is simple.
Description
Technical Field
The invention relates to the technical field of central venous catheterization and nursing, in particular to a nondestructive needle assembly for an infusion port and an infusion port injection maintenance method.
Background
An atraumatic needle for a port is a type of infusion needle specifically designed for a port and generally consists of a butterfly wing portion and a needle body portion perpendicular to the plane of the butterfly wing portion. When in use, the needle body part is generally vertically penetrated into the transfusion port, and then the butterfly wing part is attached to the skin of a patient so as to fix the atraumatic needle. The internal structure of the transfusion port can be referred to patent WO2014177298, and the transfusion port at least comprises a shell with a liquid medicine flow channel and bacteria-resistant soft rubber fixedly arranged at the top of the shell and used for puncture by an atraumatic needle.
In the actual use process, the transfusion port is set to be fixed in the body of a patient, the nondestructive needle is used by puncturing from the bacteria-resistant soft rubber when transfusion is needed, the nondestructive needle is pulled out from the bacteria-resistant soft rubber when transfusion is not needed, and the clearance of the pulled nondestructive needle can be instantly squeezed by the compact soft rubber structure. The detailed structural schematic diagram of the currently common atraumatic needle is shown in fig. 1 and 2, and a transfusion channel is arranged in the needle body; in order to facilitate the penetration, the lowermost end of the needle body has a wedge-shaped cut-out, as is clearly shown in patent CN 201720256972.6. However, such a structure may cause a relatively serious problem, for example, a dotted line portion 100 in fig. 1 and 2 actually forms a cutting edge, the cutting edge may cut the bacteria-blocking soft glue during the downward puncture process from the bacteria-blocking soft glue by the atraumatic needle, and multiple punctures by the atraumatic needle may form multiple cuts. Therefore, the compactness of the bacteria-blocking soft rubber is firstly influenced, and the most serious consequence is that a gap is formed in the bacteria-blocking soft rubber, so that the bacteria-blocking effect on the transfusion port cannot be formed; secondly, the elastomer particles of the cut soft bacteria-blocking glue can be brought into a liquid medicine flow channel of the transfusion port by liquid medicine to cause blockage, and even deadly, the elastomer particles can also be brought into the bodies of patients by the liquid medicine to form unpredictable medical accidents. In view of this, the technicians have developed the atraumatic needle by bending the tip of the atraumatic needle, as shown in fig. 3, at an angle of typically about 15 degrees, so that the wedge-shaped incision is approximately perpendicular to the surface of the soft gel of the port to prevent the formation of a cutting edge, as clearly shown in patents US5290267, EP0495214, WO2013104642, CN201380003571, the only difference being that the angle of bending and the shape of the atraumatic needle tip are different. The structure can prevent the formation of the cutting edge, but also addresses the symptoms and the root causes, because once the medical staff do not damage the needle and pierce the needle into the transfusion port in a non-vertical topographic state in the process of piercing, the problem of cutting the bacteria-resistant soft rubber of the transfusion port can be generated; secondly, because the no damage needle point end forms bending angle, consequently at the puncture in-process, hinder fungus flexible glue to the reaction force increase on the surface of no damage needle, need exert great thrust during the result in the puncture.
The chinese patent application No. 201810323891.2, entitled "atraumatic needle set for venous transfusion port and method for injection maintenance of venous transfusion port" (application No. 201810323891.2), discloses a cannula-type atraumatic needle which has no cutting edge, but needs to be pulled out after inserting a puncture needle in a cannula into a transfusion port to form a fluid passage when in use, is relatively complex to operate, and is easy to cause secondary pollution during pulling out the puncture needle.
Based on the above, it is needed to provide an injection port non-destructive needle assembly and an injection port injection maintenance method, which are simple in operation, free from secondary pollution risk and low in cost.
Disclosure of Invention
The invention provides a non-destructive needle assembly for an infusion port and an injection maintenance method for the infusion port, which are used for solving the problems in the prior art.
The invention discloses a nondestructive needle assembly for an infusion port, which comprises a base and a hollow needle; the base comprises a flexible rear cover, a base and a soft rubber pad; the base is provided with a first hole, a second hole, a third hole and a medicine storage cavity; a flexible rear cover is arranged on the first hole, a soft rubber pad is arranged on the second hole, and the third hole is connected with a transfusion pipeline;
the hollow needle comprises a piercing part and a communicating part; the puncturing part is of a needle-shaped structure without a cavity, and the communicating part is of a hollow cylindrical structure with holes on the side wall; the communicating part is connected with the puncturing part;
the cavity needle sets up store up the medicine intracavity, cavity needle afterbody with the lid links to each other behind the flexibility, cavity needle head pierces in the soft cushion, but does not pierce through.
Further, the hollow needle further comprises a pushing part, the pushing part is arranged at the tail end of the communicating part, and the pushing part is connected with the flexible rear cover.
Further, the cross section of the puncturing part adopts any one of regular or irregular circle, ellipse or triangle.
Further, the hollow needle further comprises a limiting sheet, and the limiting sheet is arranged at the tail part of the hollow needle.
Further, the base also comprises a protective cover, and the protective cover is detachably arranged outside the flexible rear cover.
The invention also discloses an injection maintenance method for the transfusion port, which is characterized in that the nondestructive needle assembly for the transfusion port is used.
Further, the injection maintenance method for the infusion port comprises the following steps:
step 1, connecting the third hole with a pipeline of fluid to be injected;
step 3, pressing the flexible rear cover to enable the hollow needle to pierce through the soft rubber mat and finally pierce into the infusion port;
and 4, discharging air through the third hole after the hollow needle is pushed in place, and performing medicine injection or maintenance of the infusion port.
The invention has the beneficial effects that:
1. the drug injection port of the hollow needle is arranged on the side wall, the top of the hollow needle is solid, the needle is not provided with a notch, and the damage to the bacteria-resistant soft rubber of the infusion port is small when the hollow needle is inserted into the infusion port;
2. the penetration depth of the hollow needle can be adjusted along with the pushing depth of the flexible rear cover, so that the hollow needle can adapt to patients with different burial depths;
3. the flexible rear cover is arranged, so that the movable part is completely isolated from the outside, and secondary pollution is avoided;
4. the limiting sheet is arranged, so that the hollow needle can be prevented from being separated by being pushed excessively;
5. the operation is simple.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the base structure;
FIG. 3 is a schematic view of the hollow needle configuration of the present invention;
FIG. 4 is a schematic cross-sectional view of the hollow needle of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The invention discloses a nondestructive needle assembly for an infusion port, which comprises a base 1 and a hollow needle 2; the base 1 comprises a flexible rear cover 11, a base 12 and a soft rubber pad 13; the base 12 is provided with a first hole 121, a second hole 122, a third hole 123 and a medicine storage cavity 124; the first hole 121 is provided with a flexible rear cover 11, the second hole 122 is provided with a soft rubber cushion 13, and the third hole 123 is connected with a transfusion pipeline;
the hollow needle 2 comprises a piercing part 21 and a communication part 22; the piercing part 21 is a needle-shaped structure without a cavity, and the communicating part 22 is a hollow cylindrical structure with a hole on the side wall; the communicating portion 22 is connected to the piercing portion 21;
the hollow needle 2 is arranged in the medicine storage cavity 124, the tail part of the hollow needle 2 is connected with the flexible rear cover 11, and the head part of the hollow needle 2 is penetrated into the soft rubber mat 13 but is not penetrated.
In this embodiment, the hollow needle 2 further includes a pushing portion 23, the pushing portion 23 is disposed at the tail end of the communicating portion 22, and the pushing portion 23 is connected to the flexible rear cover 11.
In the embodiment, the cross section of the piercing part 21 may be any one of a regular or irregular circle, an ellipse or a triangle.
In this embodiment, the hollow needle 2 further includes a limiting piece 24, and the limiting piece 24 is disposed at the tail of the hollow needle 2.
In this embodiment, the base 1 further includes a protective cover 14, and the protective cover 14 is detachably disposed outside the flexible rear cover 11.
The invention also discloses an injection maintenance method for the transfusion port, which is characterized in that the nondestructive needle assembly for the transfusion port is used.
In this embodiment, an injection maintenance method for an infusion port includes the following steps:
step 1, connecting the third hole 123 with a fluid pipeline to be injected;
step 3, pressing the flexible rear cover 11 to enable the hollow needle 2 to pierce through the soft rubber mat 13 and finally pierce into the interior of the infusion port;
and 4, exhausting air through the third hole 123 and performing medicine injection or transfusion port maintenance after the hollow needle 2 is pushed in place.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A non-destructive needle assembly for a transfusion port is characterized by comprising a base (1) and a hollow needle (2); the base (1) comprises a flexible rear cover (11), a base (12) and a soft rubber pad (13); the base (12) is provided with a first hole (121), a second hole (122), a third hole (123) and a medicine storage cavity (124); a flexible rear cover (11) is arranged on the first hole (121), a soft rubber cushion (13) is arranged on the second hole (122), and the third hole (123) is connected with a transfusion pipeline;
the hollow needle (2) comprises a piercing part (21) and a communicating part (22); the piercing part (21) is of a needle-shaped structure without a hollow hole, and the communicating part (22) is of a hollow cylindrical structure with a hole on the side wall; the communication part (22) is connected with the piercing part (21);
hollow needle (2) set up in medicine storage cavity (124), hollow needle (2) afterbody with lid (11) link to each other after the flexibility, hollow needle (2) head is pierced in soft cushion (13), but does not pierce through.
2. The non-destructive needle assembly for use in the port according to claim 1, wherein the hollow needle (2) further comprises a pushing portion (23), the pushing portion (23) is provided at a rear end of the communicating portion (22), and the pushing portion (23) is connected to the flexible rear cover (11).
3. The atraumatic needle assembly for ports according to claim 1, characterized in that the piercing section (21) is in cross-section in any one of regular or irregular circle, ellipse or triangle.
4. The atraumatic needle assembly for a port according to claim 1, characterized in that the hollow needle (2) further comprises a stopper piece (24), the stopper piece (24) being arranged at the rear of the hollow needle (2).
5. The atraumatic needle assembly for a port according to claim 1, characterized in that the base (1) further comprises a protective cap (14), said protective cap (14) being removably arranged outside said flexible rear cover (11).
6. A method of injection maintenance for a port, characterized in that a non-invasive needle assembly for a port according to any of claims 1 to 5 is used.
7. The port injection maintenance method of claim 6, comprising the steps of:
step 1, connecting the third hole (123) with a pipeline of fluid to be injected;
step 2, disinfecting the external skin of the embedded position of the infusion port, and placing the nondestructive needle assembly for the infusion port at the external skin position of the embedded position of the infusion port; the soft rubber pad (13) is tightly attached to the skin;
step 3, pressing the flexible rear cover (11) to enable the hollow needle (2) to pierce through the soft rubber cushion (13) and finally pierce into the interior of the infusion port;
and 4, discharging air through the third hole (123) after the hollow needle (2) is pushed to the position, and carrying out medicine injection or transfusion port maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424853.7A CN111053959A (en) | 2019-12-31 | 2019-12-31 | Nondestructive needle assembly for infusion port and infusion port injection maintenance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424853.7A CN111053959A (en) | 2019-12-31 | 2019-12-31 | Nondestructive needle assembly for infusion port and infusion port injection maintenance method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111053959A true CN111053959A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911424853.7A Pending CN111053959A (en) | 2019-12-31 | 2019-12-31 | Nondestructive needle assembly for infusion port and infusion port injection maintenance method |
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| Country | Link |
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| CN (1) | CN111053959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870157A (en) * | 2022-05-25 | 2022-08-09 | 南方医科大学南方医院 | Infusion device and method of use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448382Y (en) * | 2000-11-27 | 2001-09-19 | 沈绍凤 | Conic miniature trauma needle |
| CN201283133Y (en) * | 2008-11-17 | 2009-08-05 | 徐百香 | Needle for dispensing |
| CN108498897A (en) * | 2018-04-12 | 2018-09-07 | 苏州林华医疗器械股份有限公司 | Venous transfusion port not damaged needle group and its application method |
| CN209437778U (en) * | 2018-04-09 | 2019-09-27 | 连云港市第一人民医院 | A kind of dedicated not damaged needle fixation device of transfusion port |
-
2019
- 2019-12-31 CN CN201911424853.7A patent/CN111053959A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448382Y (en) * | 2000-11-27 | 2001-09-19 | 沈绍凤 | Conic miniature trauma needle |
| CN201283133Y (en) * | 2008-11-17 | 2009-08-05 | 徐百香 | Needle for dispensing |
| CN209437778U (en) * | 2018-04-09 | 2019-09-27 | 连云港市第一人民医院 | A kind of dedicated not damaged needle fixation device of transfusion port |
| CN108498897A (en) * | 2018-04-12 | 2018-09-07 | 苏州林华医疗器械股份有限公司 | Venous transfusion port not damaged needle group and its application method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870157A (en) * | 2022-05-25 | 2022-08-09 | 南方医科大学南方医院 | Infusion device and method of use |
| CN114870157B (en) * | 2022-05-25 | 2023-05-26 | 南方医科大学南方医院 | Infusion device and use method |
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