CN110585519A

CN110585519A - Atraumatic needle and infusion device

Info

Publication number: CN110585519A
Application number: CN201910842914.5A
Authority: CN
Inventors: 姜小波; 万玲
Original assignee: FOSHAN SPECIAL MEDCIAL Co Ltd
Current assignee: FOSHAN SPECIAL MEDCIAL Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2019-12-20
Anticipated expiration: 2039-09-06
Also published as: CN110585519B

Abstract

The invention provides a nondestructive needle and a transfusion device, which comprise a needle tube, a fixed seat and an anti-puncture clamp, wherein the anti-puncture clamp is fixedly connected with the fixed seat and is sleeved on the needle tube in a sliding manner; one end of the needle tube is provided with a needle head, and the needle head has a first state of extending out of the puncture-preventing clamp and a second state of being accommodated in the puncture-preventing clamp. According to the non-traumatic needle and the infusion device, the anti-puncture clamp is arranged in the fixed seat, when the needle is pulled out, the fixed seat is fixed on a hand or a fixed part by one hand, the other hand is pulled upwards and drives the needle tube to move, so that the needle tube and the anti-puncture clamp slide relatively, the needle can be embedded in the anti-puncture clamp, then the fixed seat is taken up, the needle pulling operation of the needle can be realized, the position of the needle is limited by the anti-puncture clamp, the possibility that the non-traumatic needle breaks away from an infusion port to puncture medical staff instantly can be effectively prevented, the needle point can be blocked after the needle is pulled out, and the protection effect is better.

Description

Atraumatic needle and infusion device

Technical Field

The invention relates to the technical field of medical needles, in particular to a non-invasive needle and an infusion device.

Background

The atraumatic needle is a special needle for drug administration and infusion used in cooperation with an implanted central venous infusion port, after drug administration is finished, a medical worker needs to pull out the atraumatic needle, the medical worker needs to fix a base of the infusion port with one hand and pull out the atraumatic needle with the other hand in the traditional needle pulling process, and a needle tube of the atraumatic needle can generate certain recoil instantly after being separated from the infusion port, so that the injury to the medical worker can be possibly caused, and the normal work of the atraumatic needle is influenced.

The publication number is CN 206534948U's chinese patent, and it discloses a safe type infusion port butterfly wing not damaged needle, including needle file, butterfly wing and mold insert sheath, the butterfly wing is located the both sides of needle file, fixed mounting has the steel needle on the preceding terminal surface of needle file, the mold insert sheath is articulated with the upper surface of needle file, the front end of mold insert sheath is equipped with the draw-in groove, the steel needle can be hidden in the draw-in groove, through adding the mold insert sheath that establishes a reversible, fastens the mold insert sheath in the back of needle file during the use, does not influence medical personnel and operates, and after the puncture operation is accomplished, overturns the mold insert sheath for the steel needle is hidden in the draw-in groove, plays the guard action effectively. However, the steel needle needs to be withdrawn and then be hidden in the clamping groove, and the risk of stabbing medical care personnel still exists at the moment when the needle tube is separated from the transfusion port, so the stab-resistant effect is not ideal.

Disclosure of Invention

The invention aims to provide a non-invasive needle and a transfusion device, which aim to solve the technical problem that the risk of stabbing medical care personnel still exists at the moment that a needle tube of the non-invasive needle is separated from a transfusion port in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the damage-free needle comprises a needle tube, a fixed seat and a puncture-proof clamp, wherein the puncture-proof clamp is fixedly connected with the fixed seat and is sleeved on the needle tube in a sliding manner; one end of the needle tube is provided with a needle head, and the needle head has a first state of extending out of the puncture-preventing clamp and a second state of being accommodated in the puncture-preventing clamp.

Further, the fixing seat comprises a fixing shell, a limiting groove used for containing the puncture-proof clamp is formed in the fixing shell, the opening direction of the limiting groove is towards the needle head when the limiting groove is located at the first state, and a first through hole for the needle tube to pass through is formed in the bottom of the limiting groove.

Further, the fixed shell further comprises a base, the base is arranged on one side, close to the needle head, of the fixed shell, the base is plugged in the outer side of the limiting groove, and a second through hole for the needle tube and the needle head to penetrate is formed in the base.

Further, prevent stabbing and press from both sides including spacing portion and the fixed lamella that is used for the lock syringe needle, fixed lamella is located spacing portion is close to one side of syringe needle, be equipped with the confession in the spacing portion the fixed orifices that the needle tubing passed.

Furthermore, two sides of the needle head are provided with limiting bulges, and the limiting bulges can be abutted against one side of the limiting part close to the fixed valve.

Further, the fixed valve comprises at least two valves, and the inner sides of the two fixed valves are provided with buckling parts used for wrapping the needle head.

Furthermore, the number of the fixed petals is two, and the buckling part of one of the fixed petals can be buckled outside the buckling part of the other fixed petal.

Furthermore, the needle tube is used for being connected with an infusion tube, and the atraumatic needle further comprises a butterfly wing assembly which is connected with the infusion tube and the needle tube.

Further, the butterfly wing assembly comprises an insert sheath and butterfly wing portions, and the butterfly wing portions are arranged on two sides of the insert sheath.

Further, the mold insert sheath including be used for with the post is inlayed to the needle tubing that the needle tubing is connected and be used for with the post is inlayed to the transfer line that the transfer line is connected, just the post is inlayed to the needle tubing with the transfer line is inlayed the post and is switched on mutually.

Further, the insert sheath is detachably connected with the fixing seat.

Furthermore, the bottom of the insert sheath extends to form a fixing buckle, the upper surface of the fixing seat is provided with a limiting groove, and the fixing buckle can be buckled in the limiting groove.

The invention also discloses an infusion device which comprises the atraumatic needle.

The atraumatic needle and the infusion device provided by the invention have the beneficial effects that: compared with the prior art, the nondestructive needle and the infusion device have the advantages that the needle head and the needle tube are arranged in the fixed seat in a penetrating mode, the puncture-preventing clamp is arranged in the fixed seat, when the needle is pulled out, the fixed seat is fixed on a hand or a fixing part by one hand, the needle tube is pulled upwards by the other hand, so that the needle tube and the puncture-preventing clamp slide relatively, the needle head can be embedded in the puncture-preventing clamp, then the fixed seat is taken up, the needle pulling operation of the needle head can be achieved, the position of the needle head is limited by the puncture-preventing clamp, the possibility that the nondestructive needle is separated from an infusion port to puncture medical workers at one moment can be effectively prevented, the needle point can be blocked after the needle is pulled out, and the protection effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the atraumatic needle according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a wing assembly used in an embodiment of the present invention;

FIG. 3 is a schematic view of the atraumatic needle according to the present invention shown in an embodiment of the invention;

FIG. 4 is a schematic structural view of the atraumatic needle according to the embodiments of the present invention after needle withdrawal;

fig. 5 is a schematic structural diagram of an infusion device provided by an embodiment of the invention.

Description of reference numerals:

1. a needle head; 2. a needle tube; 3. the anti-stabbing clamp; 4. a fixed seat; 5. a butterfly wing assembly; 6. a transfusion tube; 7. a transfusion port base; 11. a limiting bulge; 31. a limiting part; 32. a fixed flap; 311. a fixing hole; 321. a fastening part; 41. a stationary housing; 42. a base; 43. a limiting groove; 411. a limiting groove; 412. a first through hole; 421. a second through hole; 51. sheathing the insert; 52. a butterfly wing portion; 53. a fixing buckle; 511. embedding a needle tube into a column; 512. the infusion tube is embedded with a column.

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.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and 3 together, the atraumatic needle provided by the present invention will now be described. The atraumatic needle comprises a needle tube 2, a fixed seat 4, an anti-puncture clamp 3 and a needle head 1, wherein the anti-puncture clamp 3 is fixedly connected with the fixed seat 4 and is sleeved on the needle tube 2 in a sliding manner; the needle 1 is fixed to one end of the needle tube 2 and has a first state in which it extends out of the anti-puncture clip 3 and a second state in which it is accommodated in the anti-puncture clip 3.

Compared with the prior art, the nondestructive needle provided by the invention has the advantages that the needle head 1 and the needle tube 2 are arranged in the fixed seat 4 in a penetrating manner, the puncture-preventing clamp 3 is arranged in the fixed seat 4, when the needle is pulled out, the fixed seat 4 is fixed on a hand or a fixed part by one hand, the other hand is pulled upwards and drives the needle tube 2 to move, so that the needle tube 2 and the puncture-preventing clamp 3 slide relatively, the needle head 1 can be embedded in the puncture-preventing clamp 3, then the fixed seat 4 is taken up, the needle pulling operation of the needle head 1 can be realized, and the puncture-preventing clamp 3 limits the position of the needle head 1, so that the possibility that the nondestructive needle is separated from a transfusion port to puncture medical personnel at one moment can be effectively prevented, the needle point can be blocked after the needle is pulled out, and the protection effect is better.

Specifically, the needle head 1 generally adopts a common atraumatic needle in the prior art, and can also be a common needle head 1 in the prior art, and the common needle head is generally matched with the transfusion port base 7 for use, and the position of the fixing seat 4 generally corresponds to the position of the transfusion port base 7, so that the needle pulling operation is more convenient.

Further, referring to fig. 1, fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the fixing base 4 includes a fixing housing 41, a limiting recess 411 for accommodating the anti-puncture clip 3 is formed in the fixing housing 41, an opening of the limiting recess 411 faces the needle head 1 when in the first state, and a first through hole 412 for the needle tube 2 to pass through is formed at a bottom of the limiting recess 411. Specifically, the needle tube 2 can pass through the puncture-proof clamp 3 and the first through hole 412 in sequence and be connected with the puncture-proof clamp 3 in a sliding manner, the diameter of the first through hole 412 is larger than that of the needle tube 2 and smaller than the size of the puncture-proof clamp 3, the limiting groove 411 is arranged on one side, facing the needle head 1, of the fixed shell 41, the puncture-proof clamp 3 can be embedded inside the limiting groove 411, the position of the puncture-proof clamp 3 is limited by the limiting groove 411, and the puncture-proof clamp 3 is prevented from moving along with the movement of the needle tube 2.

Further, referring to fig. 1, fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the fixing housing 41 further includes a base 42, the base 42 is disposed on one side of the fixing housing 41 close to the needle 1, the base 42 is sealed outside the limiting recess 411, and the base 42 is provided with a second through hole 421 for the needle tube 2 and the needle 1 to pass through. Specifically, the base 42 is disposed on one side of the fixing housing 41, and seals the anti-puncture clip 3 in the limiting groove 411, and the diameter of the second through hole 421 is larger than the diameter of the needle tube 2 and smaller than the size of the anti-puncture clip 3. During the assembly, at first will prevent stabbing and press from both sides 3 cover and locate on needle tubing 2, then will prevent stabbing and press from both sides 3 and needle tubing 2 and all locate the inside of fixed casing 41, locate the bottom of fixed casing 41 with base 42 lid again to can realize preventing stabbing fixed and installation that press from both sides 3, its assembly method is simple to have the detachability, prevent stabbing in the use press from both sides 3 can with set up to disposable, and fixed casing 41 and base 42 repeatedly usable, more saving cost.

Further, referring to fig. 4, as a specific embodiment of the atraumatic needle provided by the present invention, the anti-puncture clip 3 includes a limiting portion 31 and a fixing flap 32 for engaging with the needle head 1, the fixing flap 32 is located at a side of the limiting portion 31 close to the needle head 1, and a fixing hole 311 for the needle tube 2 to pass through is formed in the limiting portion 31. Specifically, the fixing flap 32 is disposed at the bottom of the limiting portion 31, and the fixing flap 32 and the limiting portion 31 are generally integrally formed, and the shape of the limiting portion 31 is identical to that of the limiting groove 411, and the fixing flap can be embedded inside the limiting groove 411. Have the power that draws close each other between the stationary valve 32, and can extrude needle tubing 2 and syringe needle 1 to have the aligning power when sliding to syringe needle 1, thereby realize extrusion and spacing to syringe needle 1, play better needle-prick prevention and hinder the effect.

Further, referring to fig. 1, as a specific embodiment of the atraumatic needle provided by the present invention, two sides of the needle head 1 are provided with limiting protrusions 11, and the limiting protrusions 11 can abut against one side of the limiting portion 31 close to the fixing flap 32. Specifically, spacing arch 11 is located the both sides of syringe needle 1, and spacing arch 11 generally sets up the one side that is close to needle tube 2 at syringe needle 1, consequently when needle tube 2 removes out and prevents stabbing clamp 3, spacing arch 11 is greater than the aperture of fixed orifices 311 because the size, make spacing arch 11 can be close to one side looks butt of stationary flap 32 with spacing portion 31, thereby inject the continuation of needle tube 2 and syringe needle 1 and removed, can avoid medical personnel to extract the phenomenon of preventing stabbing clamp 3 with syringe needle 1 too greatly hard when pulling out the needle, better assurance medical personnel's safety.

Further, referring to fig. 1, 3 to 5, as an embodiment of the atraumatic needle of the present invention, the fixing flap 32 includes at least two flaps, and the inner sides of the two fixing flaps 32 are respectively provided with a buckling portion 321 for wrapping the needle head 1. Specifically, the petals 32 are generally divided by a main body to form a plurality of petals, the number of the petals 32 can be two or more, the petals 32 have a force to approach each other, and the needle tube 2 and the needle 1 can be pressed. The diameter of the needle tube 2 is generally larger than the radius of the needle head 1, and when the needle tube 2 is inside the fixed flap 32, the buckling part 321 can be abutted against the outer side wall of the needle tube 2 without affecting the movement of the needle tube 2; after the needle tube 2 moves out of the fixed flap 32, the fixed flap 32 can squeeze the needle 1 inwards, and after the needle 1 completely enters the fixed flap 32, the buckling part 321 can be located at one end of the needle 1 far away from the needle tube 2, so as to block the needle 1 and prevent the needle 1 from exposing out of the fixed flap 32 to stab medical staff. Buckling part 321 combines together with spacing arch 11, can carry out the shutoff to the both ends of syringe needle 1, guarantees that syringe needle 1 can be in the inside of preventing stabbing clamp 3 after extracting.

In order to ensure that the fixed flap 32 has a good returning capability, the fixed flap 32 is generally made of an elastic hook made of metal, such as stainless steel, which is not limited herein.

Further, referring to fig. 1, 3 to 5, as an embodiment of the atraumatic needle of the present invention, the number of the fixing petals 32 is two, and the fastening portion 321 of one of the fixing petals 32 can be fastened to the outer side of the fastening portion 321 of the other fixing petal 32. Specifically, the number of the fixed petals 32 is two, the two fixed petals 32 are different in size, the positions of the buckling parts 321 are different, and one of the buckling parts 321 can be buckled at the outer side of the other buckling part 321, so that double-layer protection is performed on the needle 1, and the needle 1 is better prevented from protruding out of the fixed petals 32.

Further, referring to fig. 2 and 5, as a specific embodiment of the atraumatic needle provided by the present invention, the needle tube 2 is used to connect with an infusion tube 6, and the atraumatic needle further includes a wing assembly 5 connecting the infusion tube 6 and the needle tube 2. Specifically, when preventing that the needle from hindering type not damaged needle uses, needle tubing 2 needs be connected with transfer line 6 to realize the infusion operation, butterfly wing subassembly 5 can be used for connecting transfer line 6 and needle tubing 2, and butterfly wing subassembly 5 can also be convenient hold needle tubing 2. The wing assembly 5 may be conventional in the art. Of course, according to practical situations and specific requirements, in other embodiments of the present invention, the butterfly wing assembly 5 may not be provided, and the needle tube 2 and the infusion tube 6 may be directly integrated or fixedly connected, which is not limited herein.

Further, referring to fig. 2, as a specific embodiment of the atraumatic needle provided by the present invention, the butterfly wing assembly 5 includes an insert sheath 51 and a butterfly wing portion 52, and the butterfly wing portion 52 is disposed at two sides of the insert sheath 51. Specifically, the insert sheath 51 is used for connecting the infusion tube 6 and the needle tube 2, and the wing parts 52 are arranged on two sides of the insert sheath 51 and can be hand-held parts, so that the needle tube 2 can be conveniently held and pulled out. Of course, according to practical situations and specific needs, in other embodiments of the present invention, the butterfly wing portion 52 may not be provided, and the insert sheath 51 may be directly held, which is not limited herein.

Further, referring to fig. 2, as a specific embodiment of the atraumatic needle provided by the present invention, the insert sheath 51 includes a needle tube insert 511 for connecting with the needle tube 2 and an infusion tube insert 512 for connecting with the infusion tube 6, and the needle tube insert 511 and the infusion tube insert 512 are communicated with each other. Specifically, the inside of insert sheath 51 is the body of a intercommunication, and the one end of insert sheath 51 is needle tubing inlay post 511, and the other end is the transfer line inlay post 512, and needle tubing inlay post 511 and transfer line inlay post 512 all inlay in the inside of insert sheath 51, can strengthen the intensity of insert sheath 51, and connection needle tubing 2 and transfer line 6 that can be better. Of course, according to the actual situation and the specific requirement, in other embodiments of the present invention, the needle cannula insert 511 and the infusion tube insert 512 may not be provided, and both the needle cannula 2 and the infusion tube 6 are directly connected to the insert sheath 51, which is not limited herein.

Further, referring to fig. 1, 3 to 5, as an embodiment of the atraumatic needle of the present invention, the insert sheath 51 is detachably connected to the holder 4. Specifically, the butterfly wing component 5 is fixedly connected with the needle tube 2, that is, the butterfly wing component 5 moves along with the movement of the needle tube 2, the insert sheath 51 and the fixing seat 4 are detachably connected, and the butterfly wing component 5 and the fixing seat 4 can be integrally formed when the butterfly wing component is used; when the needle tube 2 is pulled out, the butterfly wing component 5 and the fixed seat 4 can be separated, the operation of pulling the needle tube 2 can be realized by holding the butterfly wing part 52 by hand, the medical personnel are prevented from directly contacting the needle tube 2, the area capable of holding by hand is enlarged, the hand-held butterfly wing part 52 is provided with a plurality of circular point bulges, the friction between the hand and the hand-held butterfly wing part 52 can be increased, and the butterfly wing is prevented from slipping in the stress process; in addition, the handheld butterfly wing parts 52 are also provided with convex-concave rectangles, so that dislocation of the handheld butterfly wing parts 52 on two sides can be effectively prevented when the handheld butterfly wing parts 52 are folded, and particularly, the dislocation is easy to occur when the handheld butterfly wing parts 52 are stressed, and the dislocated handheld butterfly wing parts 52 are easy to slip. The detachable connection mode can be a buckle connection mode, a clamping connection mode or other detachable connection modes.

Further, referring to fig. 1, 3 to 5, as a specific embodiment of the atraumatic needle provided by the present invention, a fixing buckle 53 extends from the bottom of the insert sheath 51, the upper surface of the fixing base 4 is provided with a limiting groove 43, and the fixing buckle 53 can be buckled in the limiting groove 43. Specifically, the insert sheath 51 may be disposed above the fixing base 4, the fixing buckle 53 is a fixing boss formed by extending the bottom of the insert sheath 51, a protruding portion is disposed on one side of the upper surface of the fixing base 4, a limiting groove 43 for fastening the fixing buckle 53 is formed inside the protruding portion, or the fixing base 4 is inwardly recessed to form the fixing boss. Of course, according to the actual situation and the specific requirement, in other embodiments of the present invention, a hook may be disposed at the bottom of the insert sheath 51, and a hook matched with the fixing base 4 is disposed on the fixing base 4, so as to achieve the fastening between the insert sheath 51 and the fixing base 4, which is not limited herein.

Referring to fig. 1-5, the present invention also provides an infusion device including an atraumatic needle as described in any of the above.

According to the infusion device provided by the invention, the needle head 1 and the needle tube 2 are both arranged in the fixed seat 4 in a penetrating manner, the puncture-preventing clamp 3 is arranged in the fixed seat 4, when the needle is pulled out, the fixed seat 4 is pressed on the skin by one hand, the needle tube 2 is pulled upwards by the other hand, so that the needle tube 2 and the puncture-preventing clamp 3 slide relatively, the needle head 1 can be embedded in the puncture-preventing clamp 3, then the fixed seat 4 is taken up, the needle pulling operation of the needle head 1 can be realized, in addition, the position of the needle head 1 is limited by the puncture-preventing clamp 3, the possibility that medical personnel are punctured by the needle point at the moment when the damage-free needle is separated from an infusion port can be effectively avoided, in addition, the needle point can be blocked after the needle is pulled out.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. Not damaged needle, it includes needle tubing (2), its characterized in that still includes:

a fixed seat (4);

the puncture-preventing clamp (3) is fixedly connected with the fixed seat (4) and is sleeved on the needle tube (2) in a sliding manner;

one end part of the needle tube (2) is provided with a needle head (1), and the needle head (1) has a first state of extending out of the puncture-preventing clamp (3) and a second state of being accommodated in the puncture-preventing clamp (3).

2. The atraumatic needle of claim 1, wherein: fixing base (4) are including fixed casing (41), it is used for holding to have seted up in fixed casing (41) spacing recess (411) of preventing stabbing clamp (3), the opening orientation of spacing recess (411) is located when first state syringe needle (1), just the confession has been seted up to the bottom of spacing recess (411) first through-hole (412) that needle tubing (2) passed.

3. The atraumatic needle of claim 2, wherein: fixed casing (41) still include base (42), base (42) are located fixed casing (41) are close to one side of syringe needle (1), just base (42) shutoff in the outside of spacing recess (411), seted up on base (42) and supplied needle tubing (2) with second through-hole (421) that syringe needle (1) passed.

4. The atraumatic needle of claim 1, wherein: prevent stabbing and press from both sides (3) including spacing portion (31) and fixed lamella (32) that are used for lock syringe needle (1), fixed lamella (32) are located spacing portion (31) are close to one side of syringe needle (1), it supplies to have seted up in spacing portion (31) fixed orifices (311) that needle tubing (2) passed.

5. The atraumatic needle of claim 4, wherein: two sides of the needle head (1) are provided with limiting protrusions (11), and the limiting protrusions (11) can be abutted to one side of the limiting portion (31) close to the fixed valve (32).

6. The atraumatic needle of claim 4, wherein: the fixed valve (32) comprises at least two valves, and the inner sides of the fixed valves (32) are provided with buckling parts (321) used for wrapping the needle (1).

7. The atraumatic needle of claim 6, wherein: the number of the fixed petals (32) is two, and the buckling part (321) of one fixed petal (32) can be buckled at the outer side of the buckling part (321) of the other fixed petal (32).

8. The atraumatic needle of any one of claims 1 to 7, wherein: the needle tube (2) is used for being connected with a transfusion tube (6), and the non-invasive needle further comprises a butterfly wing component (5) which is connected with the transfusion tube (6) and the needle tube (2).

9. The atraumatic needle of claim 8, wherein: the butterfly wing assembly (5) comprises an insert sheath (51) and a butterfly wing part (52), wherein the butterfly wing part (52) is arranged on two sides of the insert sheath (51).

10. The atraumatic needle of claim 9, wherein: insert sheath (51) including be used for with needle tubing that needle tubing (2) are connected inlay post (511) and be used for with post (512) is inlayed to the transfer line that transfer line (6) are connected, just needle tubing (2) inlay the post with transfer line (6) are inlayed the post and are switched on mutually.

11. The atraumatic needle of claim 9, wherein: the insert sheath (51) is detachably connected with the fixed seat (4).

12. The atraumatic needle of claim 11, wherein: the bottom of the insert sheath (51) extends to form a fixing buckle (53), the upper surface of the fixing seat (4) is provided with a limiting groove (43), and the fixing buckle (53) can be buckled in the limiting groove (43).

13. Infusion set, its characterized in that: comprising an atraumatic needle according to any of claims 1 to 12.