CN114870157A - Infusion device and method of use - Google Patents
Infusion device and method of use Download PDFInfo
- Publication number
- CN114870157A CN114870157A CN202210575360.9A CN202210575360A CN114870157A CN 114870157 A CN114870157 A CN 114870157A CN 202210575360 A CN202210575360 A CN 202210575360A CN 114870157 A CN114870157 A CN 114870157A
- Authority
- CN
- China
- Prior art keywords
- finger
- base
- pressing button
- hole
- injection seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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 discloses a transfusion device and a using method thereof, wherein the transfusion device comprises: the transfusion port assembly comprises an injection seat, a puncture membrane and a catheter; the nondestructive needle assembly comprises a nondestructive needle body, a finger pressing button, an infusion extension tube, a base, an inner protection tube and a compression spring, wherein the inner protection tube is arranged on the base, the base is provided with an avoidance hole communicated with the interior of the inner protection tube, the finger pressing button is provided with an extension part inserted into the interior of the inner protection tube, an anti-falling structure and an unlocking locking structure are arranged between the extension part and the inner protection tube, the compression spring is arranged between the finger pressing button and the base, the finger pressing button can be limited to move through the locking structure after the finger pressing button is pressed to complete puncture operation, and the compression spring can drive the finger pressing button to move when the locking structure is unlocked so that the head of the nondestructive needle body is contracted into the interior of the inner protection tube; the magnetic attraction structure is arranged between the injection seat and the base. The infusion device is beneficial to reducing the difficulty of puncture operation and preventing medical personnel from being punctured when pulling out the atraumatic needle.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an infusion device and a using method thereof.
Background
In the prior art, an infusion port is an infusion device which is kept in a human body for a long time in a subcutaneous implantation mode, and can be matched with a nondestructive needle in clinic to perform medical actions such as drug infusion, fluid infusion, nutrition support, blood transfusion, blood sampling and the like, wherein when the medical actions are performed, a medical worker needs to fix the infusion port by one hand and puncture the nondestructive needle into the skin of a patient by the other hand, the difficulty of puncture operation is high due to certain mobility of the infusion port, the puncture operation is easy to be repeated due to puncture failure, great psychological pressure is brought to the medical worker and the patient, in addition, when the nondestructive needle is pulled out, the medical worker needs to fix the infusion port by one hand and pull out the nondestructive needle by the other hand, the hand of the medical worker used for fixing the infusion port is easy to be punctured in the process, and occupational exposure of the medical worker is caused, causing great harm to the body and mind of medical care personnel.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the infusion device is beneficial to reducing the difficulty of puncture operation and preventing medical staff from being punctured when the medical staff removes the atraumatic needle.
The invention also provides a using method applied to the infusion device.
An infusion device in accordance with an embodiment of a first aspect of the invention includes: the infusion port assembly comprises an injection seat, a puncture membrane and a catheter, wherein a liquid storage tank with an open top is arranged in the injection seat, the puncture membrane is arranged at the open top of the liquid storage tank, and the catheter is connected to the side part of the injection seat and communicated with the liquid storage tank; not damaged needle subassembly, including not damaged needle body, finger-pressing button, infusion extension pipe, base, interior protective barrel and compression spring, finger-pressing button set up in on the not damaged needle body, infusion extension union coupling in the afterbody of not damaged needle body, interior protective barrel is open-top structure, interior protective barrel set up in on the base and be used for holding the head of not damaged needle body, the head that corresponds on the base the not damaged needle body be provided with communicate in the inside hole of dodging of interior protective barrel, be provided with downwardly extending's extension on the finger-pressing button, the extension is inserted and is established in inside the interior protective barrel and can be relative interior protective barrel reciprocates, be provided with anti-disengaging structure between extension and the interior protective barrel to make finger-pressing button has first extreme position, when finger-pressing button moves to first extreme position, the head of the nondestructive needle body is contracted inside the inner protective tube, a locking structure capable of being unlocked is arranged between the extension part and the inner protective tube, so that the finger pressing button has a second limit position, when the finger pressing button moves to the second limit position, the head of the nondestructive needle body extends out of the inner protective tube through the avoidance hole, the finger pressing button can be locked at the second limit position by the locking structure, the compression spring is arranged between the finger pressing button and the base, and when the locking structure is unlocked, the compression spring can drive the finger pressing button to move from the second limit position to the first limit position; the magnetic attraction structure is arranged between the injection seat and the base.
The infusion device provided by the embodiment of the invention has at least the following beneficial effects: when the injection needle is used, the base is adsorbed on the injection seat through the magnetic attraction structure, then the injection seat is fixed by one hand, the finger pressing button is pressed by the other hand to move from a first limit position to a second limit position, so that the head of the atraumatic needle body extends out of the inner protective tube through the avoidance hole and sequentially pierces the skin of a patient and the puncture membrane, and meanwhile, the finger pressing button is locked at the second limit position through the locking structure, and then relevant medical actions can be carried out; after using up, one hand is fixed injection seat, the unblock of another hand locking structure so that the finger pressure button is in by second extreme position removal to first extreme position, separation at last under compression spring's the order about the base with the injection seat can, foretell infusion set pass through injection seat with set up magnetism between the base and inhale the structure and carry out the puncture operation with supplementary medical personnel, be favorable to reducing the degree of difficulty of puncture operation, simultaneously, through compression spring assists medical personnel to pull out the not damaged needle and pass through interior protective tube protects, is favorable to preventing medical personnel from being stabbed when pulling out the not damaged needle.
According to some embodiments of the invention, the anti-releasing structure includes a limiting protrusion disposed on the extending portion, the locking structure includes an elastic buckle disposed on the extending portion and located right above the limiting protrusion, the extending portion is provided with a first avoiding opening corresponding to the elastic buckle, so that the elastic buckle can be folded inwards when being stressed, the inner casing is provided with a rectangular through hole corresponding to the limiting protrusion and the elastic buckle, at least a portion of the limiting protrusion is located in the rectangular through hole, when the finger-pressing button moves to a first limit position, the limiting protrusion abuts against a hole wall of the rectangular through hole to limit the extending portion from being separated from the inner casing, when the finger-pressing button moves to a second limit position, the elastic buckle is clamped into the rectangular through hole and abuts against the hole wall of the rectangular through hole under the urging of the compression spring, to lock the finger button in the second extreme position.
According to some embodiments of the invention, the elastic buckle is provided with a first guide inclined surface, and the limiting protrusion is provided with a second guide inclined surface.
According to some embodiments of the invention, an outer protecting cylinder is arranged on the base, the outer protecting cylinder is sleeved outside the inner protecting cylinder, an elastic force application part is arranged on the outer protecting cylinder corresponding to the rectangular through hole, a second avoidance opening is arranged on the outer protecting cylinder corresponding to the elastic force application part, so that the elastic force application part can be folded inwards when being stressed, and an abutting part for driving the elastic buckle to be disengaged from the rectangular through hole is arranged on the elastic force application part.
According to some embodiments of the present invention, the magnetic attraction structure includes a magnet and a metal member capable of attracting the magnet, one of the magnet and the metal member is disposed on the injection seat, and the other is disposed on the base.
According to some embodiments of the invention, the bottom of the base is provided with a bonding structure, the bonding structure comprises a flexible substrate layer arranged at the bottom of the base, the area of the flexible substrate layer is larger than that of the bottom of the base, the bottom of the flexible substrate layer is provided with an adhesive layer, the bottom of the adhesive layer is provided with a peelable protective layer, and the middle of the protective layer is provided with a first fracture.
According to some embodiments of the invention, the protective layer is provided with a protruding tear at the edge of the portion on both sides of the first discontinuity.
According to some embodiments of the invention, the top of the flexible substrate layer is provided with a peelable rigid annular rim corresponding to the edge of the flexible substrate layer.
According to some embodiments of the invention, the hard annular frame is provided with a second fracture.
The use method of the embodiment of the second aspect of the invention, which is applied to the infusion device of the embodiment of the first aspect of the invention, comprises the following steps:
sterilizing the skin of the patient where the transfusion port assembly is embedded;
finding out the position of the injection seat, and adsorbing the base on the injection seat through the magnetic adsorption structure;
one hand fixes the injection seat, the other hand presses the finger pressing button to move the finger pressing button from a first limit position to a second limit position, so that the head of the atraumatic needle body extends out of the inner protective tube from the avoidance hole and sequentially pierces the skin of a patient and the puncture septum, and meanwhile, the finger pressing button is locked at the second limit position through the locking structure;
confirming whether the puncture is successful or not in a blood drawing back mode;
after confirming that the puncture is successful, peeling off the protective layer, and then adhering the flexible substrate layer to the skin of the patient through the adhesive layer so as to fix the atraumatic needle assembly;
performing one of medical actions such as drug infusion, fluid infusion, nutrition support, blood transfusion, blood sampling and the like;
after the medical action is finished, one hand fixes the injection seat, and the other hand unlocks the locking structure so that the finger-pressing button is driven by the compression spring to move from the second limit position to the first limit position;
tearing the flexible substrate layer from the patient's skin and separating the base and the injection site.
The use method provided by the embodiment of the invention has at least the following beneficial effects: when the puncture needle is applied to the infusion device, the difficulty of puncture operation is favorably reduced, and medical personnel can be favorably prevented from being punctured when the damage-free needle is pulled out.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of an infusion set with a finger-pressure button of an embodiment of the present invention moved to a first extreme position;
FIG. 2 is a schematic cross-sectional view of the structure shown in FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of the infusion set with the finger-pressure button of an embodiment of the present invention moved to a second extreme position;
FIG. 5 is a schematic cross-sectional view of the structure shown in FIG. 4;
FIG. 6 is an exploded view of an infusion device in accordance with an embodiment of the disclosures made herein;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is an enlarged view of a portion of FIG. 6 at C;
fig. 9 is a partially enlarged schematic view at D in fig. 6.
Reference numerals:
the infusion port assembly 100, the injection seat 110, the puncture septum 120, the catheter 130, the reservoir 140, the metal piece 150, the atraumatic needle assembly 200, the atraumatic needle body 210, the finger-pressure button 220, the extension part 221, the limiting protrusion 222, the elastic buckle 223, the first avoiding port 224, the first guiding inclined plane 225, the second guiding inclined plane 226, the infusion extension tube 230, the base 240, the avoiding hole 241, the inner sheath 250, the rectangular through hole 251, the compression spring 260, the outer sheath 270, the elastic force applying part 271, the second avoiding port 272, the abutting part 273, the magnet 280, the bonding structure 290, the flexible substrate layer 291, the protective layer 292, the tearing part 293, the hard annular frame 294, and the second fracture 295.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if several, more than, less than, more than, above, below, or within words appear, several means are one or more, several means are two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, within, etc. are understood as including the number.
In the description of the present invention, if the first, second, etc. terms appear, they are only used for distinguishing technical features, but are not to be interpreted as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1-5, an infusion device in accordance with an embodiment of the present invention includes an access port assembly 100, an atraumatic needle assembly 200, and a magnetic attachment structure.
The transfusion port assembly 100 is used for being embedded under the skin, the transfusion port assembly 100 comprises an injection seat 110, a puncture membrane 120 and a conduit 130, specifically, the puncture membrane 120 is a silica gel membrane, a reservoir 140 with an open top is arranged in the injection seat 110, the puncture membrane 120 is arranged at the open top of the reservoir 140, one end of the conduit 130 is connected to the side of the injection seat 110 and communicated with the reservoir 140, the other end of the conduit 130 is used for being inserted into the blood vessel, the atraumatic needle assembly 200 comprises an atraumatic needle body 210, a finger pressing button 220, an infusion extension tube 230, a base 240, an inner protection tube 250 and a compression spring 260, the finger pressing button 220 is arranged on the atraumatic needle body 210, the infusion extension tube 230 is connected to the tail of the atraumatic needle body 210, the inner protection tube 250 is of a structure with an open top, the inner protection tube 250 is arranged on the base 240 and used for accommodating the head of the atraumatic needle body 210, a relief hole 241 communicated with the inner protection tube 250 is arranged on the base 240 corresponding to the head of the atraumatic needle body 210, the finger-pressing button 220 is provided with an extension part 221 extending downwards, the extension part 221 is inserted into the inner protective barrel 250 and can move up and down relative to the inner protective barrel 250, an anti-drop structure is arranged between the extension part 221 and the inner protective barrel 250, so that the finger-pressing button 220 has a first limit position, when the finger-pressing button 220 moves to the first limit position, the head of the atraumatic needle body 210 is retracted into the inner protective barrel 250, an unlockable locking structure is arranged between the extension part 221 and the inner protective barrel 250, so that the finger-pressing button 220 has a second limit position, when the finger-pressing button 220 moves to the second limit position, the head of the atraumatic needle body 210 extends out of the inner protective barrel 250 through the avoiding hole 241, the locking structure can lock the finger-pressing button 220 at the second limit position, the compression spring 260 is arranged between the finger-pressing button 220 and the base 240, in particular, the compression spring 260 is arranged inside the inner protective barrel 250 and sleeved on the atraumatic needle body 210, one end of the compression spring 260 abuts against the finger-pressing button 220, the other end of the compression spring 260 abuts against the base 240, the compression spring 260 can drive the finger-pressing button 220 to move from the second limit position to the first limit position when the locking structure is unlocked, and the magnetic attraction structure is disposed between the injection seat 110 and the base 240.
When the injection needle is used, the base 240 is firstly adsorbed on the injection seat 110 through the magnetic attraction structure, then the injection seat 110 is fixed by one hand, the finger pressing button 220 is pressed by the other hand to move the finger pressing button 220 from the first limit position to the second limit position, so that the head of the atraumatic needle body 210 extends out of the inner protective barrel 250 through the avoidance hole 241 and sequentially pierces the skin of a patient and the puncture membrane 120, meanwhile, the finger pressing button 220 is locked at the second limit position through the locking structure, and then relevant medical actions can be carried out; after using up, injection seat 110 is fixed to one hand, another hand unblock locking structure so that finger-pressure button 220 moves to first extreme position by second extreme position under compression spring 260's the driving, it can to separate base 240 and injection seat 110 at last, foretell infusion set carries out the puncture operation with supplementary medical personnel through set up magnetism structure between injection seat 110 and base 240, be favorable to reducing the degree of difficulty of puncture operation, simultaneously, it pulls out the not damaged needle and protects through interior cartridge 250 to assist medical personnel through compression spring 260, be favorable to preventing medical personnel from being stabbed when pulling out the not damaged needle.
Referring to fig. 2, 5, 6 and 7, in some embodiments, the anti-separation structure includes a limiting protrusion 222 disposed on the extending portion 221, the locking structure includes an elastic buckle 223 disposed on the extending portion 221 and located right above the limiting protrusion 222, the extending portion 221 is provided with a first avoiding opening 224 corresponding to the elastic buckle 223, so that the elastic buckle 223 can be folded inward when being stressed, the inner sheath 250 is provided with a rectangular through hole 251 corresponding to the limiting protrusion 222 and the elastic buckle 223, the limiting protrusion 222 is at least partially located in the rectangular through hole 251, when the finger button 220 moves to the first limit position, the limiting protrusion 222 abuts against a wall of the rectangular through hole 251 to limit the extending portion 221 from the inner sheath 250, when the finger button 220 moves to the second limit position, the elastic buckle 223 is clamped into the rectangular through hole 251 and abuts against the wall of the rectangular through hole 251 under the urging of the compression spring 260, to lock the finger push button 220 in the second extreme position. When puncturing operation is performed, one hand fixes the injection seat 110, the other hand presses the finger-pressing button 220 to move the finger-pressing button 220 to the second limit position, at this time, the elastic buckle 223 is clamped in the rectangular through hole 251 and abuts against the hole wall of the rectangular through hole 251 under the driving of the compression spring 260 to lock the finger-pressing button 220 at the second limit position, when the atraumatic needle is pulled out, one hand fixes the injection seat 110, the other hand applies force on the elastic buckle 223 to make the elastic buckle 223 disengage from the rectangular through hole 251, at this time, the finger-pressing button 220 moves to the first limit position under the driving of the compression spring 260, meanwhile, the limit protrusion 222 abuts against the hole wall of the rectangular through hole 251 to limit the extension part 221 to disengage from the inner protective barrel 250, and the puncture needle puncture device is simple in structure and convenient to operate.
It should be noted that, in other embodiments, mutually independent rectangular through holes may be respectively formed in the inner casing corresponding to the limiting protrusion and the elastic buckle, and correspondingly, the limiting protrusion and the elastic buckle may be arranged in a staggered manner, which is not limited herein.
Referring to fig. 7, in some embodiments, the elastic buckle 223 is provided with a first guiding inclined surface 225, and the limiting protrusion 222 is provided with a second guiding inclined surface 226, so as to facilitate the insertion of the extension part 221 into the inner casing 250.
Referring to fig. 1, 2, 4, 5, 6 and 8, in some embodiments, an outer sheath 270 is disposed on the base 240, the outer sheath 270 is sleeved outside the inner sheath 250, an elastic force applying portion 271 is disposed on the outer sheath 270 corresponding to the rectangular through hole 251, a second avoiding opening 272 is disposed on the outer sheath 270 corresponding to the elastic force applying portion 271, so that the elastic force applying portion 271 can be folded inward when being stressed, and an abutting portion 273 for driving the elastic buckle 223 to disengage from the rectangular through hole 251 is disposed on the elastic force applying portion 271. When pulling out the not damaged needle, medical personnel's finger need not to stretch into in the rectangle through-hole 251 application of force in elastic buckle 223, and medical personnel only need can drive butt portion 273 and order about elastic buckle 223 and break away from rectangle through-hole 251 in elasticity application of force portion 271 through finger application of force, is favorable to avoiding medical personnel's finger to contact not damaged needle body 210.
Referring to fig. 2, 5 and 6, in some embodiments, the magnetic attraction structure includes a magnet 280 and a metal member 150 capable of attracting the magnet 280, the magnet 280 is disposed on the base 240, and the metal member 150 is disposed on the injection seat 110. Specifically, the magnet 280 is annular, the magnet 280 is disposed inside the outer casing 270 and sleeved outside the inner casing 250, correspondingly, the metal member 150 is also annular, and the metal member 150 is embedded inside the injection seat 110, and of course, the magnet may also be block-shaped, correspondingly, the number of the magnets is multiple, and the plurality of magnets are distributed in an annular array, wherein the metal member may also be block-shaped, correspondingly, the number of the metal members is multiple, and the plurality of metal members are distributed in an annular array, which is not limited herein.
It should be noted that, in other embodiments, the metal member is disposed on the base, and the magnet is disposed on the injection seat, which is not limited herein.
Referring to fig. 1 to 6, in some embodiments, the bottom of the base 240 is provided with an adhesive structure 290, the adhesive structure 290 includes a flexible substrate layer 291 disposed at the bottom of the base 240, the area of the flexible substrate layer 291 is larger than that of the bottom of the base 240, the bottom of the flexible substrate layer 291 is provided with an adhesive layer (not shown in the drawings), the bottom of the adhesive layer is provided with a peelable protective layer 292, the middle of the protective layer 292 is provided with a first fracture (not shown in the drawings) to facilitate peeling off the protective layer 292, after the puncturing operation is completed, the atraumatic needle assembly 200 can be fixed on the skin of a patient through the adhesive structure 290, which is beneficial to preventing the atraumatic needle 210 from being separated from the injection seat 110 due to external factors such as vibration or collision. Specifically, the flexible base layer 291 is a transparent thin film structure, and the protective layer 292 is release paper, but the flexible base layer may be a nonwoven fabric or other flexible structure, and the protective layer may be release paper or other peelable structure, which is not limited herein.
It should be noted that, in some embodiments, the bonding structure 290 may be provided with an avoiding hole for avoiding the head of the atraumatic needle body 210, and certainly, the bonding structure may not be provided with an avoiding hole for avoiding the head of the atraumatic needle body, and when performing the puncturing operation, the head of the atraumatic needle body is driven to pierce the bonding structure, which is not limited herein.
Referring to fig. 1 to 6, in some embodiments, the edges of the portions of the protection layer 292 at both sides of the first fracture are provided with a protruding tear portion 293 to facilitate peeling off the protection layer 292.
Referring to fig. 1 to 6, in some embodiments, the top of the flexible substrate layer 291 is provided with a peelable rigid annular frame 294 corresponding to the edge of the flexible substrate layer 291, and when the flexible substrate layer 291 is adhered to the skin of a patient by the adhesive layer, the rigid annular frame 294 is beneficial to preventing the edge of the flexible substrate layer 291 from curling, which reduces the difficulty of operation. Specifically, the rigid annular frame 294 may be a plastic structure, a metal structure, or other rigid structures, and is not limited herein.
Referring to fig. 9, in some embodiments, the hard annular frame 294 is provided with a second break 295, so that the hard annular frame 294 is no longer blocked by the infusion extension tube 230 when being peeled off, and the hard annular frame 294 can be separated from the atraumatic needle assembly 200 without moving the hard annular frame 294 to the end of the infusion extension tube 230 far away from the injection seat 110.
The use method of the embodiment of the invention is applied to the infusion device and comprises the following steps: sterilizing the skin of the patient where the port assembly 100 is implanted; finding out the position of the injection seat 110, and adsorbing the base 240 on the injection seat 110 through a magnetic structure; one hand fixes the injection seat 110, the other hand presses the finger-pressing button 220 to move the finger-pressing button 220 from the first limit position to the second limit position, so that the head of the atraumatic needle body 210 extends out of the inner sheath 250 through the avoiding hole 241 and sequentially pierces the skin of the patient and the puncture membrane 120, and meanwhile, the finger-pressing button 220 is locked at the second limit position through the locking structure; confirming whether the puncture is successful or not in a blood drawing back mode; after confirming that the puncture is successful, the protective layer 292 is peeled off, and then the flexible substrate layer 291 is adhered to the skin of the patient through the adhesive layer to fix the atraumatic needle assembly 200; stripping off the hard annular frame 294; performing one of medical actions such as drug infusion, fluid infusion, nutrition support, blood transfusion, blood sampling and the like; after the above medical actions are completed, one hand fixes the injection seat 110, and the other hand unlocks the locking structure so that the finger-pressure button 220 moves from the second limit position to the first limit position under the driving of the compression spring 260; the flexible base layer 291 is torn away from the patient's skin and the chassis 240 and injection hub 110 are separated.
When the using method is applied to the infusion device, the difficulty of puncture operation is reduced, and the medical staff can be prevented from being punctured when the atraumatic needle is pulled out.
In the description of the present specification, if reference is made to the description of "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", and "some examples", etc., reference is made to the terminology, it is intended that a particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An infusion device, comprising:
the transfusion port assembly (100) comprises an injection seat (110), a puncture membrane (120) and a conduit (130), wherein a liquid storage tank (140) with an open top is arranged in the injection seat (110), the puncture membrane (120) is arranged at the open top of the liquid storage tank (140), and the conduit (130) is connected to the side part of the injection seat (110) and communicated with the liquid storage tank (140);
non-injury needle assembly (200) comprises a non-injury needle body (210), a finger-pressing button (220), an infusion extension tube (230), a base (240), an inner protection tube (250) and a compression spring (260), wherein the finger-pressing button (220) is arranged on the non-injury needle body (210), the infusion extension tube (230) is connected to the tail of the non-injury needle body (210), the inner protection tube (250) is of a top opening structure, the inner protection tube (250) is arranged on the base (240) and used for accommodating the head of the non-injury needle body (210), the head of the base (240) corresponding to the non-injury needle body (210) is provided with an avoiding hole (241) communicated with the inner protection tube (250), the finger-pressing button (220) is provided with a downward extending extension part (221), the extension part (221) is inserted and arranged in the inner protection tube (250) and can move up and down relative to the inner protection tube (250), extension (221) with protect between the section of thick bamboo (250) in and be provided with anti-disengaging structure, so that finger press button (220) have first extreme position, when finger press button (220) remove to first extreme position, the head shrink of not damaged needle body (210) in protect inside a section of thick bamboo (250), extension (221) with be provided with the locking structure that can unblock between interior protection section of thick bamboo (250), so that finger press button (220) have second extreme position, when finger press button (220) remove to second extreme position, the head of needle body not damaged (210) by avoid hole (241) stretch out interior protection section of thick bamboo (250), locking structure can with finger press button (220) lock at second extreme position, compression spring (260) set up in finger press button (220) with between base (240), the compression spring (260) can drive the finger-pressing button (220) to move from the second limit position to the first limit position when the locking structure is unlocked;
the magnetic attraction structure is arranged between the injection seat (110) and the base (240).
2. The infusion device according to claim 1, wherein the anti-falling structure comprises a limiting protrusion (222) disposed on the extending portion (221), the locking structure comprises an elastic buckle (223) disposed on the extending portion (221) and located right above the limiting protrusion (222), a first avoiding opening (224) is disposed on the extending portion (221) corresponding to the elastic buckle (223) so as to enable the elastic buckle (223) to be folded inwards when the elastic buckle (223) is applied with a force, a rectangular through hole (251) is disposed on the inner shield tube (250) corresponding to the limiting protrusion (222) and the elastic buckle (223), the limiting protrusion (222) is at least partially located in the rectangular through hole (251), when the finger-pressing button (220) moves to a first limit position, the limiting protrusion (222) abuts against a hole wall of the rectangular through hole (251) so as to limit the extending portion (221) to be separated from the inner shield tube (250), when the finger-pressing button (220) moves to the second limit position, the elastic buckle (223) is clamped in the rectangular through hole (251) and abuts against the hole wall of the rectangular through hole (251) under the driving of the compression spring (260), so that the finger-pressing button (220) is locked at the second limit position.
3. The infusion set according to claim 2, characterized in that said elastic snap (223) is provided with a first guiding bevel (225) and said stop protrusion (222) is provided with a second guiding bevel (226).
4. The infusion device according to claim 2, wherein an outer protective tube (270) is disposed on the base (240), the outer protective tube (270) is sleeved outside the inner protective tube (250), an elastic force application portion (271) is disposed on the outer protective tube (270) corresponding to the rectangular through hole (251), a second avoidance opening (272) is disposed on the outer protective tube (270) corresponding to the elastic force application portion (271) so that the elastic force application portion (271) can be folded inward when being stressed, and an abutting portion (273) for urging the elastic buckle (223) to be disengaged from the rectangular through hole (251) is disposed on the elastic force application portion (271).
5. The infusion device according to claim 1, wherein the magnetic attraction structure comprises a magnet (280) and a metal member (150) capable of attracting the magnet (280), one of the magnet (280) and the metal member (150) is disposed on the injection seat (110), and the other is disposed on the base (240).
6. The infusion set according to any of claims 1 to 5, characterized in that the bottom of the base (240) is provided with an adhesive structure (290), the adhesive structure (290) comprises a flexible substrate layer (291) arranged at the bottom of the base (240), the area of the flexible substrate layer (291) is larger than the area of the bottom of the base (240), the bottom of the flexible substrate layer (291) is provided with an adhesive layer, the bottom of the adhesive layer is provided with a peelable protective layer (292), and the middle of the protective layer (292) is provided with a first break.
7. The infusion set as claimed in claim 6, characterized in that the protective layer (292) is provided with a protruding tear (293) at the edge of the portions on both sides of the first discontinuity.
8. The infusion device according to claim 6, wherein the top of the flexible base layer (291) is provided with a peelable rigid annular rim (294) corresponding to the edge of the flexible base layer (291).
9. The infusion device as claimed in claim 8, wherein the rigid annular rim (294) is provided with a second break (295).
10. A method of use, applied to an infusion device as claimed in any one of claims 6 to 9, comprising the steps of:
sterilizing the skin of a patient where the port assembly (100) is implanted;
finding out the position of the injection seat (110), and adsorbing the base (240) on the injection seat (110) through the magnetic attraction structure;
fixing the injection seat (110) by one hand, and pressing the finger-pressing button (220) by the other hand to move the finger-pressing button (220) from a first limit position to a second limit position, so that the head of the atraumatic needle body (210) extends out of the inner protective barrel (250) through an avoidance hole (241) and sequentially pierces the skin of a patient and the puncture septum (120), and meanwhile, locking the finger-pressing button (220) in the second limit position through the locking structure;
confirming whether the puncture is successful or not in a blood drawing back mode;
-peeling off said protective layer (292) after confirming successful penetration, followed by adhering said flexible base layer (291) to the patient's skin via said adhesive layer to secure said atraumatic needle assembly (200);
performing one of medical actions such as drug infusion, fluid infusion, nutrition support, blood transfusion, blood sampling and the like;
after the medical action is completed, one hand fixes the injection seat (110), and the other hand unlocks the locking structure so that the finger-pressure button (220) moves from the second limit position to the first limit position under the driving of the compression spring (260);
tearing the flexible substrate layer (291) from the patient's skin and separating the chassis (240) and the injection seat (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210575360.9A CN114870157B (en) | 2022-05-25 | 2022-05-25 | Infusion device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210575360.9A CN114870157B (en) | 2022-05-25 | 2022-05-25 | Infusion device and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114870157A true CN114870157A (en) | 2022-08-09 |
| CN114870157B CN114870157B (en) | 2023-05-26 |
Family
ID=82677090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210575360.9A Active CN114870157B (en) | 2022-05-25 | 2022-05-25 | Infusion device and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114870157B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009004205A2 (en) * | 2007-06-07 | 2009-01-08 | Laboratoires Perouse | Device for injecting a liquid into a body |
| DE102009019503A1 (en) * | 2009-04-23 | 2010-10-28 | Wiebe van der Dipl.-Ing. Wal | Device for the removal of medical fluids from disposable packaging, such as infusion or transfusion bags or bottles, has hollow connecting part which has packing-side outlet and connection-side receptacle with pierceable membrane |
| CN108498897A (en) * | 2018-04-12 | 2018-09-07 | 苏州林华医疗器械股份有限公司 | Venous transfusion port not damaged needle group and its application method |
| CN208710673U (en) * | 2018-04-12 | 2019-04-09 | 苏州林华医疗器械股份有限公司 | The not damaged needle group in venous transfusion port |
| WO2019160226A1 (en) * | 2018-02-13 | 2019-08-22 | 주식회사 메디튤립 | Vascular access port and method for manufacturing same |
| CN110585519A (en) * | 2019-09-06 | 2019-12-20 | 佛山特种医用导管有限责任公司 | Atraumatic needle and infusion device |
| CN209916921U (en) * | 2019-03-20 | 2020-01-10 | 华中科技大学同济医学院附属协和医院 | Button type needle-stick-injury-preventing non-damage needle |
| CN111053959A (en) * | 2019-12-31 | 2020-04-24 | 张雪莉 | Nondestructive needle assembly for infusion port and infusion port injection maintenance method |
| CN211272849U (en) * | 2019-09-06 | 2020-08-18 | 佛山特种医用导管有限责任公司 | Atraumatic needle and infusion device |
| CN211357166U (en) * | 2019-12-08 | 2020-08-28 | 华中科技大学同济医学院附属协和医院 | Safe type infusion port does not have harm needle |
| CN215023802U (en) * | 2021-03-05 | 2021-12-07 | 中国人民解放军总医院第八医学中心 | Stable anti-drop's infusion port and not damaged needle |
-
2022
- 2022-05-25 CN CN202210575360.9A patent/CN114870157B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009004205A2 (en) * | 2007-06-07 | 2009-01-08 | Laboratoires Perouse | Device for injecting a liquid into a body |
| DE102009019503A1 (en) * | 2009-04-23 | 2010-10-28 | Wiebe van der Dipl.-Ing. Wal | Device for the removal of medical fluids from disposable packaging, such as infusion or transfusion bags or bottles, has hollow connecting part which has packing-side outlet and connection-side receptacle with pierceable membrane |
| WO2019160226A1 (en) * | 2018-02-13 | 2019-08-22 | 주식회사 메디튤립 | Vascular access port and method for manufacturing same |
| CN108498897A (en) * | 2018-04-12 | 2018-09-07 | 苏州林华医疗器械股份有限公司 | Venous transfusion port not damaged needle group and its application method |
| CN208710673U (en) * | 2018-04-12 | 2019-04-09 | 苏州林华医疗器械股份有限公司 | The not damaged needle group in venous transfusion port |
| CN209916921U (en) * | 2019-03-20 | 2020-01-10 | 华中科技大学同济医学院附属协和医院 | Button type needle-stick-injury-preventing non-damage needle |
| CN110585519A (en) * | 2019-09-06 | 2019-12-20 | 佛山特种医用导管有限责任公司 | Atraumatic needle and infusion device |
| CN211272849U (en) * | 2019-09-06 | 2020-08-18 | 佛山特种医用导管有限责任公司 | Atraumatic needle and infusion device |
| CN211357166U (en) * | 2019-12-08 | 2020-08-28 | 华中科技大学同济医学院附属协和医院 | Safe type infusion port does not have harm needle |
| CN111053959A (en) * | 2019-12-31 | 2020-04-24 | 张雪莉 | Nondestructive needle assembly for infusion port and infusion port injection maintenance method |
| CN215023802U (en) * | 2021-03-05 | 2021-12-07 | 中国人民解放军总医院第八医学中心 | Stable anti-drop's infusion port and not damaged needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114870157B (en) | 2023-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2962285B2 (en) | Needle assembly | |
| RU2408391C2 (en) | Infusion set package and method for inserting infusion set | |
| JP4414649B2 (en) | Safety shield for medical needles | |
| WO2019221201A1 (en) | Compression device and compression method | |
| JP6231075B2 (en) | Giving mechanism activated by hand pressure | |
| US20120041377A1 (en) | Catheter Anchoring System, Apparatus and Method | |
| US8246578B2 (en) | Puncture device | |
| US20070156096A1 (en) | Puncture device | |
| JP2020512894A (en) | Catheter retainer with window | |
| JP2010538737A (en) | Bag connector | |
| CN114901159A (en) | Pressing device and method for attaching pressing device | |
| EP1871454B1 (en) | A mounting pad, an adhesive device comprising such mounting pad, and methods of preparing an infusion | |
| CN114870157A (en) | Infusion device and method of use | |
| CN219982895U (en) | Stab-injury-preventing blood taking needle convenient to fix | |
| CN217162121U (en) | Blood sampling needle fixer | |
| EP4112021A1 (en) | Compression device set and method for attaching device | |
| CN217286738U (en) | Safety transfusion port needle | |
| US20230363766A1 (en) | Compression device set and adhering method | |
| JP4683285B2 (en) | Indwelling needle device | |
| JP3275286B2 (en) | Venous catheter | |
| WO2013180234A1 (en) | Indwelling needle device | |
| US20090287115A1 (en) | Butterfly needle assembly and method of use thereof | |
| JP3147284U (en) | Syringe needle grasper | |
| JP4027718B2 (en) | Puncture device | |
| CN117379621A (en) | Puncture assembly and puncture needle sleeve suitable for hemodialysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |