Infusion port butterfly needle device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an infusion port butterfly needle device. The infusion port butterfly needle device comprises a supporting structure, an inflation structure and a butterfly needle, the inflation structure is arranged at the bottom of the supporting structure in the circumferential direction, the butterfly needle comprises a needle wing part and a needle body part, the needle wing part is rotationally connected to the supporting structure, the needle body part is connected with the needle wing part, and the needle body part penetrates through the supporting structure and the inflation structure from top to bottom; the inflation structure is communicated with an air inlet pipe, and the needle wing part is communicated with a liquid inlet pipe. According to the butterfly needle device for the infusion port, the problem that the thickness is difficult to control due to the fact that dressing needs to be padded below two wings of an existing butterfly needle is solved through the arrangement of the inflation structure.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a butterfly needle device for an infusion port. Background Art

[0002] Implantable intravenous ports use butterfly needles for subcutaneous implantation without damage to the puncture. They can be left in place for a long time with minimal trauma, and are popular with patients who need long-term intermittent infusion therapy and chemotherapy. There are also many problems with butterfly needles during puncture: due to the special structure of the butterfly needle, that is, there is a wing on each side of the needle body. After puncture, the two wings are perpendicular to the needle body and directly contact the skin, which may cause skin discomfort or even skin damage. Therefore, padding dressings are required under the two wings. The thickness of the padding dressing is difficult to control. If it is too high, the butterfly needle will easily fall out of the injection seat, resulting in fluid extravasation. In addition, the gauze on the side of the needle tip covers the puncture point, which obviously hinders the observation of the puncture site. Utility Model Content

[0003] The utility model aims to provide a butterfly needle device for an infusion port, so as to alleviate the problems that the existing butterfly needle has padding dressings under the two wings, the thickness is difficult to control, and the observation of the puncture site is hindered.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0005] A butterfly needle device for an infusion port, comprising: a support structure, an inflatable structure and a butterfly needle, wherein the inflatable structure is circumferentially arranged at the bottom of the support structure, the butterfly needle comprises a needle wing portion and a needle body portion, the needle wing portion is rotatably connected to the support structure, the needle body portion is connected to the needle wing portion, and the needle body portion passes through the support structure and the inflatable structure from top to bottom;

[0006] The inflation structure is connected with an air inlet pipe, and the needle wing part is connected with a liquid inlet pipe.

[0007] Furthermore,

[0008] The inflatable structure comprises an air bag which is annular and arranged on the outer peripheral wall of the supporting structure.

[0009] Furthermore,

[0010] A skin-friendly layer is arranged at the bottom of the airbag.

[0011] Furthermore,

[0012] The airbag is made of transparent material.

[0013] Furthermore,

[0014] One end of the air inlet pipe extends into the air bag, and the other end is connected to a syringe for pumping gas into the air bag.

[0015] Furthermore,

[0016] The support structure comprises a support plate, and the outer peripheral wall of the support plate is in contact with the annular inner wall of the airbag.

[0017] Furthermore,

[0018] The supporting plate is made of transparent material.

[0019] Furthermore,

[0020] The needle wing portion includes a first needle wing, a second needle wing and a connecting head. The first needle wing and the second needle wing are arranged opposite to each other. The first needle wing and the second needle wing are both rotatably connected to the support plate. The connecting head is arranged between the first needle wing and the second needle wing. The connecting head is connected to the liquid inlet pipe and the needle body portion.

[0021] Furthermore,

[0022] One end of the air inlet pipe close to the inflation structure is bonded and connected to one end of the liquid inlet pipe close to the needle wing portion.

[0023] Furthermore,

[0024] The needle body comprises a needle head, and the top of the needle head is communicated with the liquid inlet tube.

[0025] The utility model brings at least the following beneficial effects:

[0026] The utility model provides a butterfly needle device for an infusion port, comprising: a supporting structure, an inflatable structure and a butterfly needle, wherein the inflatable structure is circumferentially arranged at the bottom of the supporting structure, and the butterfly needle comprises a needle wing portion and a needle body portion, wherein the needle wing portion is rotatably connected to the supporting structure, the needle body portion is connected to the needle wing portion, and the needle body portion passes through the supporting structure and the inflatable structure from top to bottom; the inflatable structure is connected to an air inlet pipe, and the needle wing portion is connected to a liquid inlet pipe.

[0027] The inflatable structure replaces the cushion dressing. When the butterfly needle is inserted into the injection seat, the corresponding gas can be injected into the inflatable structure through the air inlet pipe according to the situation, so that the inflatable structure is tightly combined with the skin after expansion, so that the butterfly needle will not fall out of the injection seat due to the padding of the dressing, causing liquid extravasation. The needle wing part is rotatably connected to the support structure, and the needle wing part can be rotated relative to the support structure, which is convenient for medical staff to operate. When in use, the medical staff first rotates the needle wing part to make it form a certain angle with the support structure, and then holds the needle wing part to press the needle body downward to puncture the patient's skin and connect it to the injection seat. At the same time, the corresponding gas is injected into the inflatable structure through the air inlet pipe, so that the inflatable structure is tightly combined with the skin after expansion, and the gap between the skin and the butterfly needle is filled.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 Schematic diagram of the butterfly needle device for the infusion port provided by the embodiment of the utility model Figure 1 ;

[0031] Figure 2 Schematic diagram of the butterfly needle device for the infusion port provided by the embodiment of the utility model Figure 2 .

[0032] icon:

[0033] 100-support structure; 110-support plate; 200-inflatable structure; 210-air bag; 300-butterfly needle; 310-needle wing; 311-first needle wing; 312-second needle wing; 313-connecting head; 320-needle body; 400-air inlet pipe; 500-liquid inlet pipe. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0040] Embodiment 1

[0041] The existing butterfly needle needs to be padded with dressings under the two wings when in use. The thickness of the padding is difficult to control, and if it is padded too high, the butterfly needle is likely to fall out of the injection seat, resulting in liquid extravasation, and the gauze on the side of the needle head covers the puncture point, which obviously hinders the observation of the puncture site.

[0042] In view of this, an embodiment of the utility model provides a butterfly needle device for an infusion port, comprising: a support structure 100, an inflatable structure 200 and a butterfly needle 300, the inflatable structure 200 is circumferentially arranged at the bottom of the support structure 100, the butterfly needle 300 comprises a needle wing portion 310 and a needle body portion 320, the needle wing portion 310 is rotatably connected to the support structure 100, the needle body portion 320 is connected to the needle wing portion 310, and the needle body portion 320 passes through the support structure 100 and the inflatable structure 200 from top to bottom; the inflatable structure 200 is connected to an air inlet pipe 400, and the needle wing portion 310 is connected to a liquid inlet pipe 500.

[0043] The inflatable structure 200 replaces the padding dressing. When the butterfly needle 300 is inserted into the injection seat, the corresponding gas can be injected into the inflatable structure 200 through the air inlet pipe 400 according to the situation, so that the inflatable structure 200 is tightly combined with the skin after expansion, so that the butterfly needle 300 will not be dislodged from the injection seat due to the padding of the dressing, resulting in liquid extravasation. The needle wing part 310 is rotatably connected to the support structure 100, and the needle wing part 310 can be rotated relative to the support structure 100, which is convenient for medical staff to operate. When in use, the medical staff first rotates the needle wing part 310 to make it form a certain angle with the support structure 100, and then holds the needle wing part 310 to press the needle body part 320 downward to puncture the patient's skin and connect it to the injection seat, and at the same time, inject the corresponding gas into the inflatable structure 200 through the air inlet pipe 400, so that the inflatable structure 200 is tightly combined with the skin after expansion, and the gap between the skin and the butterfly needle 300 is filled.

[0044] In an optional manner of this embodiment, the inflatable structure 200 includes an airbag 210 , which is annular and disposed on the outer peripheral wall of the support structure 100 .

[0045] See also Figure 2 The annular airbag 210 can be tightly combined with the skin after expansion, filling the gap between the skin and the butterfly needle 300. After the butterfly needle 300 is inserted into the injection seat, the corresponding gas is injected into the airbag 210 through the air inlet pipe 400, so that the airbag 210 is tightly combined with the skin after expansion, so that the butterfly needle 300 will not fall out of the injection seat due to the padding of the dressing, resulting in liquid extravasation.

[0046] Furthermore, a skin-friendly layer is provided at the bottom of the airbag 210 .

[0047] The provision of the skin-friendly layer ensures that after the airbag 210 is inflated and in contact with the skin, there is no irritation to the patient's skin, thereby improving the patient's comfort.

[0048] In an optional manner of this embodiment, the airbag 210 is made of a transparent material.

[0049] The transparent material makes the airbag 210 transparent as a whole after being inflated, which makes it easy for medical personnel to observe the skin condition at the puncture point.

[0050] In an optional manner of this embodiment, one end of the air inlet pipe 400 extends into the airbag 210 , and the other end is connected to a syringe for pumping gas into the airbag 210 .

[0051] During use, the medical staff injects gas into the air inlet pipe 400 through a syringe, and the gas enters the airbag 210 through the air inlet pipe 400, so that the airbag 210 is inflated. After use, the medical staff extracts gas from the air inlet pipe 400 through a syringe, and the gas is extracted from the airbag 210 through the air inlet pipe 400, so that the airbag 210 returns to its original state.

[0052] In an optional manner of this embodiment, the support structure 100 includes a support plate 110 , and the outer peripheral wall of the support plate 110 is in contact with the annular inner wall of the airbag 210 .

[0053] See also Figure 1 The support plate 110 is made of a plastic material with a certain hardness, and the outer peripheral wall of the support plate 110 fits with the annular inner wall of the airbag 210. Therefore, when the airbag 210 is inflated, the force on each part of the airbag 210 is balanced, which will not cause local skin discomfort to the patient, thereby improving the patient's comfort.

[0054] Furthermore, the support plate 110 is made of transparent material.

[0055] The support plate 110 is disposed on the top of the airbag 210 . The transparent support plate 110 enables medical personnel to observe the skin condition of the puncture point through the support plate 110 after the airbag 210 is inflated.

[0056] In an optional manner of this embodiment, the needle wing portion 310 includes a first needle wing 311, a second needle wing 312 and a connecting head 313. The first needle wing 311 and the second needle wing 312 are arranged opposite to each other. The first needle wing 311 and the second needle wing 312 are both rotatably connected to the support plate 110. The connecting head 313 is arranged between the first needle wing 311 and the second needle wing 312. The connecting head 313 is connected to the liquid inlet tube 500 and the needle body portion 320.

[0057] See also Figure 2 The first needle wing 311 and the second needle wing 312 are relatively arranged on both sides of the support plate 110, and the first needle wing 311 and the second needle wing 312 can be rotated to a certain angle relative to the support plate 110, which is convenient for medical personnel to operate. The liquid to be infused passes through the liquid inlet tube 500, the connector 313 and the needle body 320 in sequence to reach the human body.

[0058] It should be noted that, in this embodiment, preferably, see Figure 1A first notch and a second notch are respectively provided on the support plate 110 at positions corresponding to the first needle wing 311 and the second needle wing 312. The thickness of the first needle wing 311 and the second needle wing 312 are the same as the thickness of the support plate 110. The first needle wing 311 and the second needle wing 312 can be rotated to the first notch and the second notch respectively. At this time, the first needle wing 311 and the second needle wing 312 are both on the same plane as the support plate 110, thereby not increasing the overall thickness of the device, and facilitating a transparent patch to be attached to the support plate 110 for fixation.

[0059] In an optional manner of this embodiment, one end of the air inlet pipe 400 close to the inflatable structure 200 is bonded and connected to one end of the liquid inlet pipe 500 close to the needle wing portion 310 .

[0060] The front ends of the two independent pipes, the air inlet pipe 400 and the liquid inlet pipe 500, are bonded and arranged side by side, which improves the aesthetics and makes it more convenient to use.

[0061] In an optional manner of this embodiment, the needle body 320 includes a needle head, and the top of the needle head is connected to the liquid inlet tube 500.

[0062] The medical staff holds the butterfly needle 300 and vertically inserts the needle into the center of the puncture diaphragm of the injection seat. After the needle misses, it is pushed downward about 0.5 cm according to the thickness of the subcutaneous fat until the needle tip reaches the drug storage tank.

[0063] The butterfly needle device for the infusion port is used as follows:

[0064] First, rotate the first needle wing 311 and the second needle wing 312 to form a certain angle with the support plate 110, hold the first needle wing 311 and the second needle wing 312, pierce the needle through the skin and vertically penetrate the center of the puncture diaphragm of the injection seat, and after missing, push it downward by about 0.5 cm according to the thickness of the subcutaneous fat, so that the needle tip reaches the drug storage tank, and at the same time, send the corresponding gas to the airbag 210 through the air inlet pipe 400, so that the airbag 210 fits the skin after expansion. Then rotate the first needle wing 311 and the second needle wing 312 to the same plane as the support plate 110, and stick a transparent patch on the support plate 110 to fix it. Since the patch, the support plate 110 and the airbag 210 are all transparent, it is convenient for medical staff to observe the puncture site. Then, the liquid to be infused is delivered to the human body through the liquid inlet pipe 500.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A butterfly needle device for an infusion port, characterized in that: include: A support structure, an inflatable structure and a butterfly needle, wherein the inflatable structure is circumferentially arranged at the bottom of the support structure, the butterfly needle comprises a needle wing portion and a needle body portion, the needle wing portion is rotatably connected to the support structure, the needle body portion is connected to the needle wing portion, and the needle body portion passes through the support structure and the inflatable structure from top to bottom; The inflation structure is connected with an air inlet pipe, and the needle wing portion is connected with a liquid inlet pipe; The inflatable structure includes an airbag, which is annular and arranged on the outer peripheral wall of the supporting structure; The support structure comprises a support plate, the outer peripheral wall of the support plate is in contact with the annular inner wall of the airbag; The needle wing portion includes a first needle wing, a second needle wing and a connector, the first needle wing and the second needle wing are arranged opposite to each other, the first needle wing and the second needle wing are both rotatably connected to the support plate, the connector is arranged between the first needle wing and the second needle wing, and the connector is communicated with the liquid inlet pipe and the needle body portion; The support plate is provided with a first notch and a second notch at positions corresponding to the first needle wing and the second needle wing, respectively. The thickness of the first needle wing and the second needle wing are the same as the thickness of the support plate, and the first needle wing and the second needle wing can be rotated to the first notch and the second notch, respectively.

2. The butterfly needle device for an infusion port according to claim 1, characterized in that: A skin-friendly layer is arranged at the bottom of the airbag.

3. The butterfly needle device for an infusion port according to claim 2, characterized in that: The airbag is made of transparent material.

4. The butterfly needle device for an infusion port according to claim 3, characterized in that: One end of the air inlet pipe extends into the air bag, and the other end is connected to a syringe for pumping gas into the air bag.

5. The butterfly needle device for an infusion port according to claim 1, characterized in that: The supporting plate is made of transparent material.

6. The butterfly needle device for an infusion port according to claim 1, characterized in that: One end of the air inlet pipe close to the inflation structure is bonded and connected to one end of the liquid inlet pipe close to the needle wing portion.

7. The butterfly needle device for an infusion port according to claim 1, characterized in that: The needle body comprises a needle head, and the top of the needle head is communicated with the liquid inlet tube.

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