CN110585519B - Atraumatic needle and infusion set - Google Patents
Atraumatic needle and infusion set Download PDFInfo
- Publication number
- CN110585519B CN110585519B CN201910842914.5A CN201910842914A CN110585519B CN 110585519 B CN110585519 B CN 110585519B CN 201910842914 A CN201910842914 A CN 201910842914A CN 110585519 B CN110585519 B CN 110585519B
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- needle
- fixing
- tube
- puncture
- atraumatic
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- 238000001802 infusion Methods 0.000 title claims abstract description 41
- 244000241796 Christia obcordata Species 0.000 claims description 35
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a nondestructive needle and an infusion device, which comprises a needle tube, a fixed seat and a puncture-preventing clamp, wherein the puncture-preventing clamp is fixedly connected with the fixed seat and is sleeved on the needle tube in a sliding way; one end of the needle tube is provided with a needle head, and the needle head is provided with a first state of extending out of the stab-resistant clamp and a second state of being accommodated in the stab-resistant clamp. The invention provides the nondestructive needle and the infusion device, the puncture-preventing clamp is arranged in the fixed seat, when the needle is pulled out, one hand is used for fixing the fixed seat on the hand or a fixed part, the other hand is pulled upwards and drives the needle tube to move so as to enable the needle tube and the puncture-preventing clamp to slide relatively, so that the needle head can be embedded in the puncture-preventing clamp, then the fixed seat is lifted up, the needle pulling operation of the needle head can be realized, and the puncture-preventing clamp limits the position of the needle head, so that the possibility that the nondestructive needle is separated from a transfusion port for a moment to puncture medical staff can be effectively prevented, the needle point can be plugged after the needle is pulled out, and the protection effect is better.
Description
Technical Field
The invention relates to the technical field of medical needles, in particular to a nondestructive needle and an infusion device.
Background
The atraumatic needle is a special administration and transfusion needle matched with an implanted central venous transfusion port, medical staff need to pull out the atraumatic needle after the administration is finished, the medical staff needs to fix a transfusion port base by one hand in the traditional needle pulling process, and the atraumatic needle is pulled out by the other hand.
The Chinese patent with the publication number of CN206534948U discloses a safe type transfusion port butterfly wing nondestructive needle, which comprises a needle seat, butterfly wings and insert sheaths, wherein the butterfly wings are positioned on two sides of the needle seat, a steel needle is fixedly installed on the front end surface of the needle seat, the insert sheaths are hinged with the upper surface of the needle seat, the front end of each insert sheath is provided with a clamping groove, the steel needle can be hidden in the clamping groove, and the insert sheaths which can be turned over are additionally arranged, so that the insert sheaths are fastened behind the needle seat when the needle is used, the operation of medical staff is not influenced, and when the puncture operation is completed, the insert sheaths are turned over, so that the steel needle is hidden in the clamping groove, and the protection effect is effectively achieved. However, the steel needle needs to be hidden in the clamping groove after being pulled out, and the risk of stabbing medical staff still exists at the moment when the needle tube is separated from the transfusion port, so that the stabbing prevention effect is not ideal.
Disclosure of Invention
The invention aims to provide a non-invasive needle and an infusion device, which are used for solving the technical problem that the risk of stabbing medical staff still exists at the moment that a needle tube of the non-invasive needle is separated from an infusion port in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the nondestructive needle comprises a needle tube, a fixed seat and a puncture-preventing clamp, wherein the puncture-preventing clamp is fixedly connected with the fixed seat and is sleeved on the needle tube in a sliding manner; the needle tube has a needle at one end, the needle having a first state extending out of the stab-resistant clip and a second state received in the stab-resistant clip.
Further, the fixing seat comprises a fixing shell, a limiting groove for accommodating the puncture preventing clamp is formed in the fixing shell, an opening of the limiting groove faces to the needle head in a 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 on the outer side of the limiting groove, and a second through hole for the needle tube to pass through is formed in the base.
Further, the stab-preventing clamp comprises a limiting part and a fixing flap for buckling the needle, the fixing flap is located on one side, close to the needle, of the limiting part, and a fixing hole for the needle tube to pass through is formed in the limiting part.
Further, limiting protrusions are arranged on two sides of the needle head, and the limiting protrusions can be abutted with one side, close to the fixed valve, of the limiting portion.
Further, the fixing petals comprise at least two petals, and buckling parts for wrapping the needle heads are arranged on the inner sides of the two fixing petals.
Further, the number of the fixing flaps is two, and the buckling part of one fixing flap can be buckled on the outer side of the buckling part of the other fixing flap.
Further, the needle tube is used for being connected with an infusion tube, and the atraumatic needle further comprises a butterfly wing component for connecting the infusion tube and the needle tube.
Further, the butterfly wing assembly comprises an insert sheath and butterfly wing parts, wherein the butterfly wing parts are arranged on two sides of the insert sheath.
Further, the insert sheath comprises a needle tube insert column connected with the needle tube and an infusion tube insert column connected with the infusion tube, and the needle tube insert column is communicated with the infusion tube insert column.
Further, the insert sheath is detachably connected with the fixing seat.
Further, a fixing buckle extends from the bottom of the insert sheath, a limiting groove is formed in the upper surface of the fixing seat, and the fixing buckle can be buckled in the limiting groove.
The invention also discloses an infusion device comprising the atraumatic needle as set forth in any one of the above.
The non-invasive needle and the infusion device provided by the invention have the beneficial effects that: compared with the prior art, the invention has the advantages that the needle and the needle tube are arranged in the fixed seat in a penetrating way, the puncture preventing clamp is arranged in the fixed seat, when the needle is pulled out, one hand fixes the fixed seat on the hand or a fixed part, and the other hand pulls the needle tube upwards so as to enable the needle tube and the puncture preventing clamp to slide relatively, so that the needle can be embedded in the puncture preventing clamp, then the fixed seat is taken up, the needle pulling operation of the needle can be realized, and the puncture preventing clamp limits the position of the needle, so that the possibility that the needle is separated from a transfusion port at one instant and medical staff is punctured can be effectively prevented, the needle point can be plugged 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 that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure of a atraumatic needle according to an embodiment of the present invention;
FIG. 2 is a schematic view of a butterfly wing assembly according to an embodiment of the invention;
FIG. 3 is a schematic view of a structure of a atraumatic needle according to an embodiment of the present invention during insertion;
fig. 4 is a schematic structural diagram of a non-damaged needle after needle withdrawal according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an infusion device according to an embodiment of the disclosure.
Reference numerals illustrate:
1. a needle; 2. a needle tube; 3. a puncture-proof clip; 4. a fixing seat; 5. a butterfly wing assembly; 6. an infusion tube; 7. a transfusion port base; 11. a limit protrusion; 31. a limit part; 32. fixing the valve; 311. a fixing hole; 321. a buckling part; 41. a fixed housing; 42. a base; 43. a limit groove; 411. a limit groove; 412. a first through hole; 421. a second through hole; 51. insert sheath; 52. a butterfly wing; 53. a fixing buckle; 511. a needle tube is inlaid with a column; 512. the infusion tube is inlaid with a column.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 and 3 together, the atraumatic needle provided by the present invention will now be described. The nondestructive needle comprises a needle tube 2, a fixed seat 4, a puncture-proof clamp 3 and a needle head 1, wherein the puncture-proof clamp 3 is fixedly connected with the fixed seat 4 and is sleeved on the needle tube 2 in a sliding way; the needle 1 is fixed to one end of the needle tube 2 and has a first state in which it protrudes from the stab prevention clip 3 and a second state in which it is accommodated in the stab prevention 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 way, the puncture preventing clamp 3 is arranged in the fixed seat 4, when the needle is pulled out, one hand is used for fixing the fixed seat 4 on the hand or a fixing part, 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 relatively slide, the needle head 1 can be embedded in the puncture preventing clamp 3, then the fixed seat 4 is lifted up, the needle pulling operation of the needle head 1 can be realized, and the possibility that the nondestructive needle is separated from a transfusion port for a moment due to the needle head 1 is limited by the puncture preventing clamp 3 can be effectively prevented, the needle point can be plugged after the needle is pulled out, and the protection effect is better.
Specifically, the needle 1 is a non-invasive needle commonly used in the prior art, and may be a common needle 1 commonly used in the prior art, which is generally used in cooperation with the transfusion port base 7, and the position of the fixing seat 4 is generally corresponding to the position of the transfusion port base 7, so that the needle pulling operation is more convenient.
Further, referring to fig. 1 and fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the fixing seat 4 includes a fixing housing 41, a limiting groove 411 for accommodating the anti-puncture clip 3 is formed in the fixing housing 41, an opening of the limiting groove 411 faces the needle 1 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 groove 411. Specifically, the needle tube 2 can sequentially pass through the puncture-proof clip 3 and the first through hole 412 and is in sliding connection with the puncture-proof clip 3, the diameter of the first through hole 412 is larger than the diameter of the needle tube 2 and smaller than the size of the puncture-proof clip 3, the limiting groove 411 is arranged on one side of the fixed shell 41 facing the needle 1, the puncture-proof clip 3 can be embedded in the limiting groove 411, and the position of the puncture-proof clip 3 is limited by the limiting groove 411, so that the puncture-proof clip 3 is prevented from moving along with the movement of the needle tube 2.
Further, referring to fig. 1 and fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the fixed housing 41 further includes a base 42, the base 42 is disposed on a side of the fixed housing 41 near the needle 1, the base 42 is plugged on an outer side of the limiting groove 411, and a second through hole 421 for passing through the needle tube 2 and the needle 1 is formed in the base 42. Specifically, the base 42 is disposed on one side of the fixed housing 41, and plugs the stab-preventing clip 3 in the limiting groove 411, and the diameter of the second through hole 421 is greater than the diameter of the needle tube 2 and smaller than the size of the stab-preventing clip 3. During assembly, the puncture preventing clamp 3 is sleeved on the needle tube 2, then the puncture preventing clamp 3 and the needle tube 2 are arranged in the fixed shell 41, and the base 42 is covered at the bottom of the fixed shell 41, so that the puncture preventing clamp 3 can be fixed and installed.
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 fastening the needle 1, the fixing flap 32 is located at one side of the limiting portion 31 near the needle 1, and a fixing hole 311 for the needle tube 2 to pass through is formed in the limiting portion 31. Specifically, the fixing lobe 32 is disposed at the bottom of the limiting portion 31, and the fixing lobe 32 and the limiting portion 31 are generally integrally formed, and the shape of the limiting portion 31 is consistent with the shape of the limiting groove 411, and may be embedded in the limiting groove 411. The fixing petals 32 have forces which are close to each other, and can squeeze the needle tube 2 and the needle head 1, so that the needle tube has a correcting force when sliding to the needle head 1, the extrusion and the limiting of the needle head 1 are realized, and a good needle penetration injury prevention effect is achieved.
Further, referring to fig. 1, as a specific embodiment of the atraumatic needle provided by the present invention, two sides of the needle 1 are provided with limiting protrusions 11, and the limiting protrusions 11 may abut against one side of the limiting portion 31, which is close to the fixing flap 32. Specifically, spacing protruding 11 is located the both sides of syringe needle 1, and spacing protruding 11 generally sets up in the one side that syringe needle 1 is close to needle tubing 2, therefore when needle tubing 2 removes anti-stab clamp 3, spacing protruding 11 is greater than the aperture of fixed orifices 311 owing to the size for spacing protruding 11 can be close to one side looks butt of fixed lamella 32 with spacing portion 31, thereby limited the continued movement of needle tubing 2 and syringe needle 1, can avoid medical personnel to exert excessive force when pulling out the needle 1 to pull out the phenomenon of anti-stab clamp 3, better assurance medical personnel's safety.
Further, referring to fig. 1 and fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the fixing petals 32 include at least two petals, and buckling parts 321 for wrapping the needle 1 are disposed on the inner sides of the two fixing petals 32. Specifically, the fixed petals 32 are generally separated by a main body to form multiple petals, the number of the fixed petals 32 can be two or more, the fixed petals 32 have a force of being close to each other, and the needle tube 2 and the needle 1 can be extruded. 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 arranged in the fixed valve 32, the buckling part 321 can be abutted with the outer side wall of the needle tube 2 and does not influence the movement of the needle tube 2; after the needle tube 2 moves out of the fixed valve 32, the fixed valve 32 can inwards squeeze the needle head 1, and after the needle head 1 completely enters into the fixed valve 32, the buckling part 321 can be positioned at one end of the needle head 1 far away from the needle tube 2, so that the needle head 1 is plugged, and the needle head 1 is prevented from being exposed out of the fixed valve 32 to stab medical staff. The buckling part 321 is combined with the limiting protrusion 11, so that both ends of the needle head 1 can be plugged, and the needle head 1 is ensured to be limited in the puncture preventing clamp 3 after being pulled out.
In order to ensure that the fixing flap 32 has a better return capability, the fixing flap 32 is generally made of a flexible metal, such as a stainless steel, and is not limited herein.
Further, referring to fig. 1 and fig. 3 to fig. 5, as an embodiment of the atraumatic needle provided by the present invention, the number of the fixing petals 32 is two, and the fastening portion 321 of one fixing petal 32 may be fastened to the outer side of the fastening portion 321 of the other fixing petal 32. Specifically, the number of the fixing petals 32 is two, the sizes of the two fixing petals 32 are inconsistent, the positions of the buckling parts 321 are also inconsistent, at this time, one buckling part 321 can be buckled on the outer side of the other buckling part 321, so that double-layer protection is formed on the needle 1, and the needle 1 is better prevented from protruding out of the fixing petals 32.
Further, referring to fig. 2 and 5, as an embodiment of the atraumatic needle provided by the present invention, the needle tube 2 is used for being connected to an infusion tube 6, and the atraumatic needle further comprises a butterfly wing assembly 5 for connecting the infusion tube 6 and the needle tube 2. Specifically, when the needle-stick injury prevention type atraumatic needle is used, the needle tube 2 needs to be connected with the infusion tube 6, so that infusion operation is realized, the butterfly wing assembly 5 can be used for connecting the infusion tube 6 and the needle tube 2, and the butterfly wing assembly 5 can also be used for conveniently holding the needle tube 2. The butterfly wing assembly 5 may be a conventional assembly of the prior art. Of course, according to the actual situation and specific requirements, in other embodiments of the present invention, the needle tube 2 and the infusion tube 6 may be directly integrally formed or fixedly connected without the butterfly wing assembly 5, which is not limited only herein.
Further, referring to fig. 2, as an embodiment of the atraumatic needle provided by the present invention, the butterfly wing assembly 5 includes an insert sheath 51 and butterfly wing parts 52, and the butterfly wing parts 52 are disposed on 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 butterfly wing parts 52 are arranged on two sides of the insert sheath 51 and can be handheld parts, so that the needle tube 2 can be conveniently held and pulled out. Of course, according to the actual situation and specific requirements, in other embodiments of the present invention, the insert sheath 51 may be directly held without the wing portion 52, which is not limited herein.
Further, referring to fig. 2, as an 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 in communication. Specifically, the inside of the insert sheath 51 is a communicating tube body, one end of the insert sheath 51 is a needle tube insert column 511, the other end of the insert sheath 51 is an infusion tube insert column 512, and the needle tube insert column 511 and the infusion tube insert column 512 are embedded in the inside of the insert sheath 51, so that the strength of the insert sheath 51 can be enhanced, and the needle tube 2 and the infusion tube 6 can be better connected. Of course, according to the actual situation and specific requirements, in other embodiments of the present invention, the needle tube insert 511 and the infusion tube insert 512 may not be provided, and the needle tube 2 and the infusion tube 6 are directly connected to the insert sheath 51, which is not limited only herein.
Further, referring to fig. 1 and fig. 3 to fig. 5, as a specific embodiment of the atraumatic needle provided by the present invention, the insert sheath 51 is detachably connected to the fixing base 4. Specifically, the butterfly wing component 5 is fixedly connected with the needle tube 2, namely, 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 during use; when the needle tube 2 is pulled out, the butterfly wing component 5 and the fixed seat 4 can be separated, the hand-held butterfly wing part 52 can realize the operation of pulling the needle tube 2, the medical staff is prevented from directly contacting the needle tube 2, the hand-held area is enlarged, and the hand-held butterfly wing part 52 is provided with a plurality of round dot bulges which can increase the friction between the hand and the hand-held butterfly wing part 52, so that the butterfly wing is prevented from slipping in the stress process; the concave-convex rectangle is further arranged on the handheld butterfly wing parts 52, so that dislocation of the handheld butterfly wing parts 52 on two sides can be effectively prevented when the handheld butterfly wing parts are folded, and particularly the misplacement is easy when the handheld butterfly wing parts 52 are stressed, and the misplacement is easy to slip. The detachable connection mode can be a buckle connection mode, a clamping mode or other detachable connection modes.
Further, referring to fig. 1 and fig. 3 to fig. 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, a limiting groove 43 is provided on the upper surface of the fixing seat 4, and the fixing buckle 53 may be buckled in the limiting groove 43. Specifically, the insert sheath 51 may be disposed above the fixing seat 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 seat 4, and a limiting groove 43 for fastening the fixing buckle 53 is formed in the protruding portion, or the fixing seat 4 is concavely provided with the fixing boss. Of course, according to practical situations and specific requirements, in other embodiments of the present invention, a hook may be further disposed at the bottom of the insert sheath 51, and a hook matched with the hook is disposed on the fixing base 4, so as to implement the buckling between the insert sheath 51 and the fixing base 4, which is not limited only herein.
Referring to fig. 1-5, the present invention also provides an infusion device comprising a atraumatic needle as set forth in any one of the preceding claims.
According to the infusion device provided by the invention, the needle 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 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 can slide relatively, the needle 1 can be embedded in the puncture preventing clamp 3, then the fixed seat 4 is lifted up, the needle pulling operation of the needle 1 can be realized, and the puncture preventing clamp 3 limits the position of the needle 1, so that the possibility that medical staff is punctured by the needle point at the moment that the needle is not damaged in the infusion port can be effectively avoided, and the needle point can be plugged after the needle is pulled out, so that the protection effect is better.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. The atraumatic needle comprises a needle tube (2), and is characterized by further comprising:
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 way;
one end of the needle tube (2) is provided with a needle head (1), and the needle head (1) is provided with a first state of extending out of the stab-resistant clamp (3) and a second state of being accommodated in the stab-resistant clamp (3);
the fixing seat (4) comprises a fixing shell (41), a limiting groove (411) for accommodating the puncture-preventing clamp (3) is formed in the fixing shell (41), an opening of the limiting groove (411) faces the needle (1) in a first state, and a first through hole (412) for the needle tube (2) to pass through is formed in the bottom of the limiting groove (411);
the anti-puncture clamp (3) comprises a limiting part (31) and a fixing flap (32) for buckling the needle (1), the fixing flap (32) is positioned on one side, close to the needle (1), of the limiting part (31), and a fixing hole (311) for the needle tube (2) to pass through is formed in the limiting part (31);
the needle tube (2) is used for being connected with an infusion tube (6), and the atraumatic needle also comprises a butterfly wing component (5) for connecting the infusion tube (6) and the needle tube (2);
the butterfly wing assembly (5) comprises an insert sheath (51) and butterfly wing parts (52), and the butterfly wing parts (52) are arranged on two sides of the insert sheath (51);
the insert sheath (51) comprises a needle tube insert column (511) used for being connected with the needle tube (2) and an infusion tube insert column (512) used for being connected with the infusion tube (6), and the needle tube (2) insert column is communicated with the infusion tube (6) insert column.
2. The atraumatic needle of claim 1, wherein: the fixed shell (41) further comprises a base (42), the base (42) is arranged on one side, close to the needle head (1), of the fixed shell (41), the base (42) is plugged on the outer side of the limiting groove (411), and a second through hole (421) for the needle tube (2) and the needle head (1) to penetrate through is formed in the base (42).
3. The atraumatic needle of claim 1, wherein: limiting protrusions (11) are arranged on two sides of the needle head (1), and the limiting protrusions (11) can be abutted to one side, close to the fixing petals (32), of the limiting portion (31).
4. The atraumatic needle of claim 1, wherein: the fixing petals (32) comprise at least two petals, and buckling parts (321) used for wrapping the needle heads (1) are arranged on the inner sides of the two fixing petals (32).
5. The atraumatic needle of claim 4, wherein: the number of the fixing flaps (32) is two, and the buckling part (321) of one fixing flap (32) can be buckled outside the buckling part (321) of the other fixing flap (32).
6. The atraumatic needle of claim 1, wherein: the insert sheath (51) is detachably connected with the fixing seat (4).
7. The atraumatic needle of claim 6, wherein: the bottom of the insert sheath (51) is extended with a fixing buckle (53), the upper surface of the fixing seat (4) is provided with a limit groove (43), and the fixing buckle (53) can be buckled in the limit groove (43).
8. The infusion device is characterized in that: comprising a atraumatic needle as defined in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842914.5A CN110585519B (en) | 2019-09-06 | 2019-09-06 | Atraumatic needle and infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842914.5A CN110585519B (en) | 2019-09-06 | 2019-09-06 | Atraumatic needle and infusion set |
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| Publication Number | Publication Date |
|---|---|
| CN110585519A CN110585519A (en) | 2019-12-20 |
| CN110585519B true CN110585519B (en) | 2024-03-19 |
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| CN201910842914.5A Active CN110585519B (en) | 2019-09-06 | 2019-09-06 | Atraumatic needle and infusion set |
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| CN110585519A (en) | 2019-12-20 |
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