CN215690581U

CN215690581U - Three-finger puncture butterfly wing and atraumatic needle

Info

Publication number: CN215690581U
Application number: CN202121235405.5U
Authority: CN
Inventors: 聂长宁
Original assignee: Suzhou Linhwa Medical Devices Co ltd
Current assignee: Suzhou Linhwa Medical Devices Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-02-01
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a three-finger pricking needle butterfly wing and a non-traumatic needle, which comprise a connecting part and wing pieces symmetrically arranged at two sides of the connecting part, wherein the front end of the connecting part is provided with a needle hole for mounting a needle tube, the tail end of the connecting part is provided with a connecting pipe for connecting a catheter, the upper end surface of the connecting part is a flat surface, the wing pieces at two sides are bent upwards in a use state, a U-shaped accommodating groove is formed between the wing pieces and the upper end surface of the connecting part, and the back surfaces of the two wing pieces and the upper end surface form a three-finger pinching surface. The butterfly wing is provided with the connecting part and the wing piece, so that the U-shaped accommodating groove is formed between the wing piece and the connecting part when the wing piece is bent upwards, a user can press the upper end face of the connecting part with one finger and pinch the back face of the wing piece with two fingers, the effect of pinching the butterfly wing with three fingers is achieved, the stability of pinching the butterfly wing is greatly improved, the shaking in the using process can be effectively reduced, and the use accuracy and the comfort level of the nondestructive needle are improved.

Description

Three-finger puncture butterfly wing and atraumatic needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a three-finger puncture needle butterfly wing and a non-traumatic needle.

Background

The transfusion port, also known as an implanted central venous catheter system (CVPAS), is a novel central venous transfusion device, consists of a catheter and a port seat, can be used for repeated intravenous injection anti-tumor and antibacterial treatment, Total Parenteral Nutrition (TPN), blood products, blood sampling and the like, and has the advantages of long retention time, low infection rate, prevention of irritant medicine from damaging peripheral veins and the like. The injection seat is embedded under the skin of the inner side of the upper arm by taking the vein, brachial vein or cephalic vein of the upper arm as an access way.

According to the requirement of technical operating code for intravenous therapy and nursing, a special butterfly wing non-invasive needle is needed for puncture transfusion when an arm port is used, the butterfly wing needle consists of a needle head, a pillow handle, two needle wings, an extension tube and a thumb clamp, the needle head and the needle handle form an angle of 90 degrees, the two wings of the butterfly wing needle are flatly laid on the skin of an injection seat after puncture, and the butterfly wing needle is fixed by transparent dressing. The butterfly wing needle can be left for 1 week after puncture, and the transparent dressing is replaced once in 1 week under the condition of no abnormal condition.

Most of the existing butterfly wings are as disclosed in Chinese patent No. 201720256972.6, two symmetrical wing pieces are connected on a connecting conduit for passing through a needle tube, the wing pieces of the butterfly wings are mostly flat surfaces, and when in use, medical staff mostly use two fingers to pinch the wing pieces for pricking. However, the two fingers are easy to move and shake during the acupuncture, which causes the inaccurate acupuncture and brings extra pain to the patient.

Therefore, how to improve the stability of the butterfly wing in pinching is a problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a three-finger puncture needle butterfly wing and a non-traumatic needle.

The purpose of the utility model is realized by the following technical scheme:

three indicate to prick needle butterfly wings, including connecting portion and symmetry set up in the fin of connecting portion both sides, the front end of connecting portion has the pinhole that is used for installing the needle tubing, and its tail end has the connecting pipe that is used for connecting the pipe, the up end of connecting portion is straight surface, under the user state, both sides the fin upwards buckles, and with the up end of connecting portion forms U type storage tank, two the back of fin with the up end constitutes three and indicates to hold between the fingers the face.

Preferably, the width of the connecting part is 10 +/-2 mm.

Preferably, two sides of the connecting portion are connected with two sides of the upper end face through first inclined planes, the two fins are connected with the connecting portion through second inclined planes, and the two first inclined planes and the two second inclined planes form concave upper concave portions.

Preferably, a concave part is formed on the back surface of the joint of the wing and the connecting part, and the concave part is positioned below the upper concave part.

Preferably, the width of the wing gradually expands outwards from the connection part with the connecting part, and the upper surface of the wing, which is connected with the second inclined surface, is a flat surface.

Preferably, the back surface is an arc surface concave towards the upper surface.

Preferably, the rear face has a set of ribs thereon.

Preferably, the connecting part is provided with a notch extending from the front end to the middle part of the connecting part, and the notch and the needle hole are positioned on the same axis to expose part of the needle tube.

Preferably, the bottom surface of the connecting part is provided with an elastic claw for connection.

The atraumatic needle comprises the three-finger puncture needle butterfly wing.

The utility model has the following beneficial effects:

1. the butterfly wing formed by the connecting part and the wing pieces is arranged, so that a U-shaped accommodating groove is formed between the wing pieces and the connecting part when the wing pieces are bent upwards, a user can press the upper end face of the connecting part with one finger, and the back faces of the wing pieces are pinched by two fingers, so that the effect of pinching the butterfly wing with three fingers is achieved;

2. the upper end surface is a straight surface, so that a user can conveniently sense the balance, and the control on the whole balance is improved;

3. the upper concave part and the lower concave part are arranged to ensure that the thickness of the fin is minimum, so that the upward bending of the fin is facilitated;

4. when the fins are bent upwards due to the arrangement of the first inclined plane and the second inclined plane, gaps are formed between the second inclined planes of the fins on the two sides and the upper end face all the time to place fingers, so that the formation of a three-finger pinching curved surface is ensured, excessive extrusion of the fingers due to bending of the fins in use is avoided, and the use comfort is improved;

5. the back of the wing panel is an arc-shaped surface which can be conveniently pinched by fingers, and the convex edge is arranged to increase the friction force between the fingers and the back, so that the use stability is further improved;

6. the notch arranged at the front end of the connecting part can facilitate a user to clearly see the position of the needle tube, so that the use convenience is improved;

7. the back of the connecting part is provided with an elastic claw, so that the butterfly wing and other parts can be conveniently connected or separated.

Drawings

The technical scheme of the utility model is further explained by combining the accompanying drawings as follows:

FIG. 1: a schematic diagram of an embodiment of the utility model;

FIG. 2: a front view of an embodiment of the utility model;

FIG. 3: the embodiment of the utility model is schematically shown in a use state;

FIG. 4: the use state diagram of the embodiment of the utility model.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "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 devices or elements 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 embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1 to 4, the utility model discloses a three-finger pricking butterfly wing, which comprises a connecting part 1 and wing pieces 2 symmetrically arranged at two sides of the connecting part 1, wherein the front end of the connecting part 1 is provided with a needle hole 103 for mounting a needle tube, the tail end of the connecting part is provided with a connecting pipe 104 for connecting a catheter, the upper end surface 101 of the connecting part 1 is a flat surface, in a use state, the wing pieces 2 at two sides are bent upwards and form a U-shaped accommodating groove 100 with the upper end surface 101 of the connecting part 1, and the back surfaces 203 of the two wing pieces 2 and the upper end surface 101 form a three-finger pinching surface.

According to the utility model, the butterfly wing formed by the connecting part 1 and the wing piece 2 is arranged, so that a U-shaped accommodating groove is formed between the wing piece 2 and the connecting part 1 when the wing piece 2 is bent upwards, a user can press the upper end face 101 of the connecting part 1 by one finger and pinch the back face 203 of the wing piece 2 by two fingers at the same time, and the effect of pinching the butterfly wing by three fingers is achieved.

In the preferred embodiment, the upper end surface 101 of the connecting portion 1 is a flat surface to facilitate the user to perceive the balance and improve the control of the overall balance. In other possible embodiments, the upper end surface 101 of the connecting portion 1 may also be a concave arc surface to improve the fit with the fingers. In order to ensure that the U-shaped containing groove can contain a finger, the width of the connecting part 1 is 10 +/-2 mm.

As shown in fig. 2, two sides of the connecting portion 1 are connected to two sides of the upper end surface 101 through first inclined surfaces 102, two fins 2 are connected to the connecting portion 1 through second inclined surfaces 201, and the two first inclined surfaces 102 and the two second inclined surfaces 201 form a concave upper recess 3. By the structure, in a use state, a certain gap is formed between the second inclined surface 201 and the upper end surface 101 to place fingers, so that a three-finger pinching curved surface is formed, excessive extrusion on the fingers placed on the upper end surface 101 when the fins 2 are pinched is avoided, and use comfort is improved.

Furthermore, a concave part 4 is formed on the back surface of the joint of the wing 2 and the connecting part 1, and the concave part 4 is located below the upper concave part 3. This construction ensures that the thickness of the tab 2 at the junction of the tab 2 and the connecting portion 1 is minimized, so that the tab 2 can be forced to bend upward.

Furthermore, the width of the wing piece 2 is gradually enlarged outwards from the connection part with the connecting part 1, so that the contact area between the wing piece 2 and fingers can be enlarged as much as possible, and the user can conveniently pinch the wing piece.

The upper surface 202 of the wing 2, which is connected with the second inclined surface 201, is a flat surface, so that the overall height of the wing 2 in the unused state can be reduced as much as possible, and the storage space can be saved.

As shown in fig. 2, the back surface 203 is an arc surface concave toward the upper surface 202. The curved surface may improve the fit between the back surface 203 and the fingers to improve the stability of the user gripping the tab 2.

Further, the back 203 has a set of ribs 204 thereon. The ribs 204 can increase the friction between the back 203 and the fingers, further improving the stability of the user in gripping the tab 2. In other possible embodiments, the back surface 203 may also be provided with any other suitable convex or concave structures to increase the friction on the surface, such as convex points, concave strips, etc.; it is also possible to provide a frosted surface or the like having a large frictional force.

As shown in FIG. 1, the connecting portion 1 has a notch 105 extending from the front end to the middle thereof, and the notch 105 is coaxial with the needle hole 103 to expose a part of the needle tube. The notch 105 is provided to avoid the needle cannula so that the user can clearly see the position of the needle cannula during use for practical use.

In addition, the bottom surface of the connection part 1 is provided with elastic claws 106 for connection. The elastic claws 106 are arranged so that the connecting part 1 can be connected with or separated from the base 5 of the atraumatic needle, and preferably, two elastic claws 106 are arranged on the bottom surface of the connecting part 1 so as to improve the stability of the connection between the elastic claws 106 and the base.

The utility model also discloses the atraumatic needle which comprises the three-finger puncture needle butterfly wing.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. Three indicate needle butterfly wings, its characterized in that: including connecting portion (1) and symmetry set up in fin (2) of connecting portion (1) both sides, the front end of connecting portion (1) has pinhole (103) that are used for installing the needle tubing, and its tail end has connecting pipe (104) that are used for connecting tube, up end (101) of connecting portion (1) are straight surface, under the user state, both sides fin (2) are upwards buckled, and with up end (101) of connecting portion (1) form U type storage tank (100), two the back (203) of fin (2) with up end (101) constitute three and indicate to hold between the fingers the face.

2. The three-finger needle butterfly wing of claim 1, wherein: the width of the connecting part (1) is 10 +/-2 mm.

3. The three-finger needle butterfly wing of claim 2, wherein: the two sides of the connecting portion (1) are connected with the two sides of the upper end face (101) through first inclined planes (102), the two fins (2) are connected with the connecting portion (1) through second inclined planes (201), and the first inclined planes (102) and the two second inclined planes (201) form concave upper concave portions (3).

4. The three-finger needle butterfly wing of claim 3, wherein: the back of the joint of the fin (2) and the connecting part (1) is provided with a concave lower concave part (4), and the lower concave part (4) is positioned below the upper concave part (3).

5. The three-finger needle butterfly wing of claim 4, wherein: the width of the fin (2) gradually expands outwards from the connection part of the fin and the connecting part (1), and the upper surface (202) of the fin, which is connected with the second inclined surface (201), is a straight surface.

6. The three-finger needle butterfly wing of claim 5, wherein: the back surface (203) is an arc surface concave towards the upper surface (202).

7. The three-finger needle butterfly wing of claim 6, wherein: the back surface (203) has a set of ribs (204) thereon.

8. The three-finger needle butterfly wing of claim 7, wherein: the connecting part (1) is provided with a notch (105) extending from the front end to the middle part of the connecting part, and the notch (105) and the needle hole (103) are positioned on the same axis to expose part of the needle tube.

9. The three-finger needle butterfly wing of claim 8, wherein: the bottom surface of the connecting part (1) is provided with an elastic claw (106) for connection.

10. The no injury needle, its characterized in that: comprising a three finger needle butterfly according to any of claims 1-9.