CN111068144A - Needle assisting device - Google Patents
Needle assisting device Download PDFInfo
- Publication number
- CN111068144A CN111068144A CN201911345414.7A CN201911345414A CN111068144A CN 111068144 A CN111068144 A CN 111068144A CN 201911345414 A CN201911345414 A CN 201911345414A CN 111068144 A CN111068144 A CN 111068144A
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- China
- Prior art keywords
- spring
- shell
- button
- matching seat
- needle
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- 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
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- 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
- A61M5/142—Pressure infusion, e.g. using pumps
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- 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
- A61M2005/1585—Needle inserters
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- 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
Abstract
The invention relates to the technical field of medical instruments, in particular to a needle assisting device, which comprises a shell, wherein openings are respectively formed in a top shell and a bottom shell of the shell; a button hole is arranged on the side wall of the shell; the shell is provided with a matching seat; the bottom of the matching seat is provided with a clamping component; a supporting plate is arranged on the outer wall of the matching seat, and a main spring is arranged between the supporting plate and the top shell; the outer wall of the matching seat is also provided with a release button and a release spring; when the release button reaches the button hole, the main spring is extended out of the button hole under the action of the release spring, and at the moment, the main spring is in a compressed state; when the release button is pressed by external force and separated from the button hole, the matching seat pops out towards the direction of the bottom shell under the action of the stretching elastic force of the main spring, so that the remaining needle assembly connected to the clamping assembly is popped out of the shell. According to the technical scheme of the invention, the indwelling needle can be accurately, quickly and painlessly injected into the subcutaneous tissue of the human body, and the relatively painful and unreliable manual embedding mode of the needle head of the input pipeline is avoided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a needle assisting device.
Background
Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia, which is caused by defects in insulin secretion or impaired biological action, or both. Hyperglycemia occurring in the long term of diabetes results in chronic damage to, and dysfunction of, various tissues, particularly the eyes, kidneys, heart, blood vessels, nerves.
Therefore, diabetics must inject insulin periodically to control the overall condition. At present, the method generally adopted in medical treatment depends on manual implantation of an infusion tube needle, and has the defects that repeated acupuncture is needed, a patient feels pain, the whole process is quite complicated, great inconvenience and discomfort are brought to the patient due to the fact that insulin is required to be injected for many times a day, subcutaneous adipose tissues are likely to be atrophied, local skin is likely to be hardened, and finally the insulin is not stably absorbed by the human body. There is also a special medical apparatus for treating diabetes: the main function of the insulin pump and the disposable insulin pump infusion pipeline is to control the blood sugar of a patient by artificially setting the infusion amount of the insulin pump and infusing a small amount of insulin into the body of the patient every a short period of time, thereby relieving the pain of the patient caused by hyperglycemia and the complication caused by diabetes, but the prior situation is that a needle booster is lacked to infuse the infusion pipeline with a hose into the subcutaneous tissue of the body.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a needle assisting device, which can ensure to inject the injection tube with flexible tube into the subcutaneous tissue of human body accurately, quickly and painlessly.
In order to achieve the above object, according to one aspect of the present invention, there is provided a needle assisting device, comprising a housing with a set height, wherein openings are respectively formed on a top shell and a bottom shell of the housing, and central points of the two openings are collinear; a button hole is formed in the side wall of the shell; a matching seat is arranged between the two openings in the shell, and the top end of the matching seat penetrates through the opening in the top shell and is located outside the shell; the bottom of the matching seat is provided with a clamping component for connecting an indwelling needle component; a supporting plate perpendicular to the outer wall is arranged on the outer wall of the matching seat, and a main spring is arranged between the supporting plate and the top shell of the shell; the outer wall of the matching seat is also provided with a release button and a release spring, and the release spring is used for enabling the release button to move towards the direction far away from the outer wall of the matching seat; when the release button reaches the button hole, the main spring is extended out of the button hole under the action of the release spring and clamped in the button hole, and at the moment, the main spring is in a compressed state; when the release button is pressed by external force to be separated from the button hole, the matching seat is ejected towards the direction of the bottom shell under the action of the stretching elastic force of the main spring, so that the indwelling needle assembly connected to the clamping assembly can be ejected out of the shell.
Optionally, the clamping assembly comprises a hollow cylindrical protruding column and a plurality of limiting blocks, and the protruding column and the limiting blocks are arranged at the bottom of the matching seat; the axis of the protruding column is overlapped with the axis of the matching seat, and the limiting blocks are located on the outer side of the protruding column and are circumferentially arranged by taking the protruding column as a center; and a clamping hook for connecting an indwelling needle assembly is arranged on one side of the limiting block facing the protruding column.
Optionally, a top button is arranged in a groove at the top end of the matching seat, the top button comprises a push plate arranged towards the bottom of the groove, and the end of the push plate penetrates through the bottom of the matching seat to be located on the outer side of the matching seat and is used for pushing the port of the indwelling needle base to be separated from the clamping hook; a top spring is arranged between the inner wall of the top button and the bottom of the groove; the side wall of the matching seat is provided with a strip-shaped buckle hole arranged along the height direction of the matching seat, the top button is provided with a buckle used for being arranged in the buckle hole in a penetrating mode, and the buckle can move between the top position and the bottom position of the buckle hole under the action of a top spring.
Optionally, still include guide bracket in the shell, guide bracket with the inner wall fixed connection of epitheca, guide bracket's middle part is equipped with and is used for the cover to establish the through-hole of cooperation seat.
Optionally, one end of the guide bracket, which is far away from the top shell, is provided with a spring hole, the supporting plate is provided with a spring guide rod, which faces the top shell and is arranged in the direction of the top shell, one end of the main spring is sleeved on the spring guide rod and is abutted against the supporting plate, and the other end of the main spring is abutted against the bottom of the spring hole.
Optionally, a bar-shaped limiting groove is formed in the inner wall of the shell, and the release button is located in the bar-shaped limiting groove.
Optionally, the housing is further provided with a locking assembly, and the locking assembly comprises a locking spring and a sliding lock; spring grooves are formed in the inner wall of the bottom shell of the shell and located on two sides of the opening, the lock catch springs are arranged in the spring grooves, the sliding lock catches are located above the spring grooves and arranged in parallel with the bottom shell, one ends of the lock catch springs are abutted to the side walls of the spring grooves, and the other ends of the lock catch springs are abutted to the sliding lock catches; the sliding lock catch is provided with a lock catch plate opening and a lock catch button which are arranged opposite to the opening on the bottom shell, and the lock catch plate opening is provided with a lock hook extending towards the opening of the bottom shell; the latch hook can move between a locking position and a separating position, and the latch button is pushed to enable the latch spring to be in a compressed state, so that the latch hook is moved to the separating position, the latch button is released, and the latch hook is moved to the locking position under the action of resilience force of the latch spring.
Optionally, a lock catch hole is formed in the side wall of the housing, and the lock catch button penetrates through the lock catch hole and is located on the outer side of the housing.
Optionally, the locking assembly further includes a locking fixture, the locking fixture includes a sleeve, and the protruding column and the plurality of limiting blocks are located in the sleeve; the bottom opening of the sleeve is connected with a pressing plate, and the pressing plate is perpendicular to the axis of the sleeve; the pressing plate is fixedly connected with the bottom shell, a gap is formed between the pressing plate and the bottom shell, and the sliding lock catch is located in the gap to move.
Optionally, two symmetrically arranged release buttons are arranged on the outer wall of the matching seat.
Optionally, the guide bracket is provided with four spring holes arranged at four corners, and the supporting plate is provided with four spring guide rods arranged at four corners; and the main spring is arranged between each spring hole and the spring guide rod which is arranged opposite to the spring hole.
Optionally, at least one end of the bottom shell is provided with a docking groove or a docking protrusion for connecting the bottom shell with the bottom plate of the indwelling needle.
According to the technical scheme of the invention, after the release button is pressed and released, the matching seat is pushed to move rapidly by utilizing the stretching elasticity of the main spring, so that the indwelling needle assembly connected with the end part through the clamping assembly is driven to move, and the indwelling needle is placed under the skin.
The needle assisting device can ensure that an indwelling needle (an injection pipeline with a hose) is accurately, quickly and painlessly injected into subcutaneous tissues of a human body, and avoids relative pain and an unreliable mode of manually embedding a needle head of an input pipeline.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is another perspective view of the present invention;
FIG. 3 is a cross-sectional view of the outer shell and bottom shell of the present invention;
FIG. 4 is another cross-sectional view of the outer shell and bottom shell of the present invention;
FIG. 5 is a schematic view of the structure of the mating seat and top button of the present invention;
FIG. 6 is a first schematic diagram illustrating a usage state of the present invention;
FIG. 7 is a second schematic view of the present invention in use;
FIG. 8 is a third schematic view of the present invention in use;
FIG. 9 is a fourth schematic view of the present invention in use;
FIG. 10 is a fifth schematic view of the present invention in use;
FIG. 11 is a sixth schematic view of the present invention in use;
fig. 12 is a seventh schematic view of the state of use of the present invention.
In the figure:
1: a housing; 1.1: a button hole; 1.2: a locking hole; 2: a bottom case; 3: a base plate; 4: a mating seat; 4.1: a limiting block; 4.2: a spring post; 4.3: a snap-in hole; 5: a top button; 5.1: a bayonet; 5.2: buckling; 5.3: pushing the plate; 6: a top spring; 7: a guide bracket; 8: a release button; 8.1: a spring hole; 9: releasing the spring; 10: a button securing member; 11: a spring guide rod; 12: a main spring; 13: a latch spring; 14: sliding the lock catch; 14.1: a latch button; 15: a locking fastener; 100: a base of the indwelling needle; 100.1: a port; 200: a protective cap.
Detailed Description
The present embodiment provides a needle assisting device, as shown in fig. 1-5, comprising a housing 1 with a set height, wherein openings are respectively formed on a top shell and a bottom shell 2 of the housing 1, and central points of the two openings are collinear; a button hole 1.1 is arranged on the side wall of the shell 1; a matching seat 4 is arranged between the two openings in the shell 1, and the top end of the matching seat 4 penetrates through the opening of the top shell of the shell 1 and is positioned outside the shell 1; the bottom of the matching seat 4 is provided with a clamping component for connecting an indwelling needle component; a supporting plate vertical to the outer wall is arranged on the outer wall of the matching seat 4, and a main spring 12 which can be a plurality of symmetrically distributed springs is arranged between the supporting plate and the top shell of the shell 1; the outer wall of the matching seat 4 is also provided with a release button 8 and a release spring 9, and the release spring 9 is used for enabling the release button 8 to move in the direction away from the outer wall of the matching seat 4; in the process that the bottom of the matching seat 4 is subjected to external force and moves along the connecting line direction of the central points of the two openings, when the release button 8 reaches the button hole 1.1, the release button extends out of the button hole 1.1 under the action of the release spring 9 and is clamped in the button hole 1.1, and at the moment, the main spring 12 is in a compressed state; when the release button 8 is pressed by external force and separated from the button hole 1.1, the mating seat 4 is ejected towards the bottom shell 2 under the action of the stretching elastic force of the main spring 12, so that the indwelling needle assembly connected to the clamping assembly can be ejected out of the shell 1.
An indwelling needle assembly is aligned with a clamping assembly of a matching seat 4 to apply external force to the matching seat 4, so that the matching seat 4 is pushed to move, at the moment, the applied external force is larger than the stretching elastic force of a spring, a release button 8 on the matching seat 4 moves together, when the indwelling needle assembly moves to the position of a button hole 1.1, the release button 8 is opposite to the button hole 1.1, the release button 8 is ejected out under the action of a release spring 9 and clamped in the button hole 1.1, and at the moment, a main spring 12 is compressed; and (3) continuously applying external force to the indwelling needle assembly, wherein the matching seat 4 cannot continuously move, and the applied external force acts on the clamping assembly, so that the clamping assembly is clamped with the indwelling needle assembly. After the indwelling needle assembly is connected with the matching seat 4, the indwelling needle implantation operation can be implemented, the release button 8 is manually pressed, the matching seat 4 is pushed to rapidly move under the action of the stretching elastic force of the main spring 12, and the matching seat 4 drives the indwelling needle assembly on the matching seat to be implanted into the subcutaneous part of a human body, so that the implantation operation is completed.
In this embodiment, the clamping assembly is used for connecting the indwelling needle assembly, and preferably, the clamping assembly includes a hollow cylindrical protruding column 5.1 and a plurality of limiting blocks 4.1, and the protruding column 5.1 and the limiting blocks 4.1 are arranged at the bottom of the matching seat 4; the axis of the convex column 5.1 is superposed with the axis of the matching seat 4, and the plurality of limiting blocks 4.1 are positioned outside the convex column 5.1 and are circumferentially arranged by taking the convex column 5.1 as the center; a clamping hook for connecting an indwelling needle assembly is arranged on one side of the limiting block 4.1 facing the convex column 5.1. The indwelling needle assembly is provided with a hollow indwelling needle base 100, a port 100.1 of the base 100 is an outward-turned eave, the structure is matched with a protruding column 5.1 of the clamping assembly for use, when in use, an end product is aligned to and sleeved into the protruding column 5.1, then the port 100.1 is forced to open a limiting block 4.1, and the port 100.1 is provided with the outward-turned eave, so that when the base 100 continuously enters, the limiting block 4.1 is clamped at the eave, and then the connection of the indwelling needle assembly and the clamping assembly is realized, as shown in fig. 7.
In order to facilitate the separation operation of the needle assisting device and the indwelling needle assembly, a top button 5 is further arranged on the matching seat 4, namely, the top button 5 is arranged in a groove at the top end of the matching seat 4, the top button 5 comprises a push plate 5.3 arranged towards the bottom of the groove, the end part of the push plate 5.3 penetrates through the bottom of the matching seat 4 to be positioned at the outer side of the matching seat 4, and is used for pushing a port 100.1 of the base 100 to be separated from the clamping hook; a top spring 6 is arranged between the inner wall of the top button 5 and the bottom of the groove; be equipped with the buckle hole 4.3 of the bar that sets up along its direction of height on the lateral wall of cooperation seat 4, be equipped with on the top button 5 and be used for wearing to establish buckle 5.2 in buckle hole 4.3, under the effect of top spring 6, buckle 5.2 can move between the top position and the bottom position in buckle hole 4.3. The top button 5 is manually pressed to compress the top spring 6, the buckle 5.2 of the top button 5 moves to the bottom position of the buckle hole 4.3, the top button 5 drives the push plate 5.3 to move, the pressing force acts on the indwelling needle assembly, and the indwelling needle assembly is pushed to be separated from the clamping hook, so that the needle removal operation is completed; after that, the top button 5 is released, and the top button 5 is reset under the action of the extension elastic force of the top spring 6, i.e. the catch 5.2 is reset to the top position of the catch hole 4.3.
In this embodiment, still include guide bracket 7 in the shell 1, guide bracket 7 and the inner wall fixed connection of epitheca, the middle part of guide bracket 7 is equipped with the through-hole that is used for the cover to establish cooperation seat 4. When cooperation seat 4 uses, moves along the direction of height of shell 1, and in order to make the removal that cooperation seat 4 can be regular, avoid deviating, set up a guide bracket 7 in the inside of shell 1, cooperation seat 4 wears to establish in the through-hole on guide bracket 7, and this through-hole has certain degree of depth along the direction of height of shell 1, plays limiting displacement to cooperation seat 4. The cross-sectional shape of the mating seat 4 can be set to be non-circular, for example, the cross-section of the mating seat is in a shape of a rounded rectangle, so that the mating seat 4 can be prevented from rotating relative to the through hole.
In this embodiment, the one end that the top shell was kept away from to guide bracket 7 is equipped with the spring hole, is equipped with the spring guide bar 11 that sets up towards the top shell direction on the layer board, and the pot head of mainspring 12 is on spring guide bar 11, and with the layer board butt, the bottom butt in the other end and spring hole. One end of the main spring 12 is arranged in the spring hole, and the other end of the main spring 12 is connected to the spring guide rod 11. Preferably, the guide bracket 7 is provided with four spring holes arranged at four corners, and the supporting plate is provided with four spring guide rods 11 arranged at four corners (symmetrically arranged); a main spring 12 is provided between each spring hole and the spring guide rod 11 disposed opposite thereto. The four main springs 12 are arranged, so that enough force can be applied to the indwelling needle assembly by the stretching elastic force of the main springs 12 during release, meanwhile, the force application to the matching seat 4 is more uniform, and the deviation probability of the indwelling needle assembly is reduced.
In this embodiment, the release button 8 is released at the button hole 1.1, and moves by the extension elastic force of the main spring 12 until the extension elastic force disappears. In the use process of the needle assisting device, the release button 8 moves back and forth in the above stroke, in order to further limit the matching seat 4, a strip-shaped limit groove is arranged on the inner wall of the shell 1, and the release button 8 is positioned in the strip-shaped limit groove to move. The end part of the release button 8 always reciprocates in the bar-shaped limiting groove, so that the matching seat 4 and the release button 8 can be effectively prevented from deviating, and the release button 8 can be ensured to be clamped into the button hole 1.1.
In this embodiment, the housing 1 is further provided with a locking assembly, and the locking assembly includes a locking spring 13 and a sliding lock 14; spring grooves are formed in the two sides of the opening in the inner wall of the bottom shell 2 of the shell 1, the lock catch springs 13 are arranged in the spring grooves, the sliding lock catches 14 are located above the spring grooves and are arranged in parallel with the bottom shell 2, one ends of the lock catch springs 13 are abutted to the side walls of the spring grooves, and the other ends of the lock catch springs 13 are abutted to the sliding lock catches 14; a lock catch plate opening and a lock catch button 14.1 which are opposite to the opening on the bottom shell 2 are arranged on the sliding lock catch 14, and a lock hook which extends towards the opening of the bottom shell 2 is arranged on the lock catch plate opening; the latch hook can move between the locking position and the separating position, and pushes the latch button 14.1 to enable the latch spring 13 to be in a compressed state, so that the latch hook moves to the separating position, the latch button 14.1 is released, and the latch hook moves to the locking position under the effect of resilience force of the latch spring 13.
When the indwelling needle assembly is used, the indwelling needle assembly is matched with the structure of the base plate 3 for use, the base plate 3 is pasted on the skin of a human body, the indwelling needle assembly penetrates through the base plate 3 and then is implanted into the skin of the human body, and the base plate 3 is provided with a supporting and fixing structure of an indwelling needle. In order to facilitate the connection of the needle assisting device and the bottom plate 3, a lock catch component is arranged on the needle assisting device; wherein, be equipped with the coupler body structure on bottom plate 3, during the use, promote hasp button 14.1, the latch hook removes the isolated position, and the latch hook separates with the coupler body on the bottom plate 3 this moment, loosens hasp button 14.1, and under the effect of hasp spring 13 extension elasticity, the latch hook removes to the locking position, and with the coupler body joint this moment, and then realize being connected of helping needle ware and bottom plate 3. The locking component can effectively prevent the needle booster from deviating from the bottom plate 3, and the subcutaneous implantation accuracy is improved. Preferably, the side wall of the housing 1 is provided with a locking hole 1.2, and the part of the locking button 14.1, which penetrates through the locking hole 1.2, is located outside the housing 1.
Preferably, a docking device is provided at one end of the bottom case 2, by which the bottom case 2 can be clamped on the bottom plate 3, for example, the docking device is a docking groove or a docking protrusion. The corresponding position on the bottom plate 3 of the indwelling needle is correspondingly provided with a butt joint bulge or a butt joint groove, so that when the needle assistor is connected with the bottom plate 3, one end of the needle assistor is connected with the bottom plate 3 by using a butt joint device, the butt joint bulge is embedded into the butt joint groove, and then the other end is pressed down by taking the connecting point as a fixed point, thereby realizing the connection of the locking and buckling component and the bottom plate 3 as shown in fig. 9. The butt joint device has the limiting function, and meanwhile, the rapid and accurate connection of the needle booster and the bottom plate is facilitated.
The locking assembly further comprises a locking fixing piece 15, the locking fixing piece 15 comprises a sleeve, and the protruding column 5.1 and the limiting blocks 4.1 are located in the sleeve; the bottom opening of the sleeve is connected with a pressure plate, and the pressure plate is arranged perpendicular to the axis of the sleeve; the pressing plate is fixedly connected with the bottom shell 2, a gap is arranged between the pressing plate and the bottom shell, and the sliding lock catch 14 is located in the gap to move. The sleeve has certain height, and protruding post 5.1 and stopper 4.1 remove the in-process and accomplish all the time in the sleeve, are equivalent to inside shell 1, and protruding post 5.1 and stopper 4.1 set up a protecting sheathing outward, avoid the bottom opening directly with the inside intercommunication of shell 1, cause the foreign matter or keep somewhere the needle etc. and fall into in the shell 1.
In this embodiment, two symmetrically arranged release buttons 8 are provided on the outer wall of the mating seat 4. Be equipped with spring post 4.2 on the cooperation seat 4, release button 8 inboard is equipped with spring hole 8.1, and 9 pot heads of release spring are on spring post 4.2, and one end stretches into in spring hole 8.1, is fixed with button mounting 10 on the cooperation seat 4 in the 8 outsides of every release button, and the edge of release button 8 can be with button mounting 10 joint, avoids making release button 8 pop out under the effect of release spring 9. The two release buttons 8 are required to be operated simultaneously to complete the implantation of the indwelling needle, only one release button 8 is touched, the indwelling needle assembly cannot be released, and due to the fact that the indwelling needle assembly is a sharp object, the probability of misoperation can be reduced and the safety is improved.
The using method comprises the following steps:
in a first step, the selected application site of the base plate 3 is cleaned and sterilized before use.
Secondly, aligning the base 100 of the indwelling needle assembly with the raised columns 5.1 in the needle assistor (as shown in fig. 6), pressing the protective cap 200 of the indwelling needle inwards with force (as shown in fig. 7), pushing the matching seat 4 and the top button 5 until the release button 8 moves to the position of the button hole 1.1, extending out of the button hole 1.1 under the action of the release spring 9, compressing the main spring 12 at the moment, sleeving the middle of the inner end of the base 100 of the indwelling needle on the raised columns 5.1, clamping the outer side of the base between the limiting blocks 4.1, and removing the protective cap 200 for standby (as shown in fig. 8).
And thirdly, holding the needle assistor shell 1 by hand, enabling the needle assistor bottom shell 2 to be in snap fit alignment with the bottom plate 3, pressing the needle assistor shell 1 downwards (shown in figure 9), and obtaining the assembled needle assistor (shown in figure 1) after pressing.
Fourthly, the bottom plate 3 is placed on the implantation position, fingers press the release buttons 8 on the two sides of the needle assister shell 1 at the same time, the matching seat 4 and the top button 5 move downwards rapidly under the stretching force of the main spring 12, and the part on the indwelling needle base 100 is implanted into the body (note that when the release button 8 is pressed, the other hand must press the bottom end of the needle assister and cannot lift the bottom plate 3) (see fig. 10).
Fifthly, after the indwelling needle is implanted, the locking button 14.1 at the lower end of the needle assisting device shell 1 is pressed inwards by fingers (as shown in fig. 11), the bottom shell 2 is separated from the bottom plate 3, and the needle assisting device shell 1 is taken down from the bottom plate 3.
Sixthly, the protective cap 200 is sleeved back, the top button 5 of the needle assister is pressed down by fingers to drive the push plate 5.3 to move downwards (the matching seat 4 and the limiting block 4.1 do not move), the push plate 5.3 pushes the port 100.1 of the base 100, the eave at the port 100.1 overcomes the clamping of the limiting block 4.1, and the rest part of the indwelling needle base 100 is separated from the limiting block 4.1, pushed out of the needle assister (as shown in fig. 12) and stored in a proper storage container.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. The needle assisting device is characterized by comprising a shell (1) with a set height, wherein openings are respectively formed in a top shell and a bottom shell (2) of the shell (1), and the central points of the two openings are collinear; a button hole (1.1) is arranged on the side wall of the shell (1);
a matching seat (4) is arranged between the two openings in the shell (1), and the top end of the matching seat (4) penetrates through the opening on the top shell and is located outside the shell (1); the bottom of the matching seat (4) is provided with a clamping component for connecting an indwelling needle component;
a supporting plate vertical to the outer wall is arranged on the outer wall of the matching seat (4), and a main spring (12) is arranged between the supporting plate and the top shell of the shell (1);
the outer wall of the matching seat (4) is also provided with a release button (8) and a release spring (9), and the release spring (9) is used for enabling the release button (8) to move towards the direction far away from the outer wall of the matching seat (4);
in the process that the bottom of the matching seat (4) is subjected to external force and moves along the connecting line direction of the central points of the two openings, when the release button (8) reaches the button hole (1.1), the release button extends out of the button hole (1.1) under the action of the release spring (9) and is clamped in the button hole (1.1), and at the moment, the main spring (12) is in a compressed state; when the release button (8) is pressed by external force and separated from the button hole (1.1), the matching seat (4) is ejected towards the bottom shell (2) under the action of the stretching elastic force of the main spring (12) so as to enable the detaining needle assembly connected to the clamping assembly to be ejected out of the shell (1).
2. The needle assisting device according to claim 1, characterized in that the clamping assembly comprises a hollow cylindrical protruding column (5.1) and a plurality of limiting blocks (4.1), wherein the protruding column (5.1) and the limiting blocks (4.1) are arranged at the bottom of the matching seat (4);
the axis of the protruding column (5.1) coincides with the axis of the matching seat (4), and the limiting blocks (4.1) are located on the outer side of the protruding column (5.1) and are circumferentially arranged by taking the protruding column (5.1) as the center; a clamping hook for connecting an indwelling needle assembly is arranged on one side of the limiting block (4.1) facing the convex column (5.1).
3. The needle aid according to claim 2, characterized in that a top button (5) is arranged in a groove at the top end of the matching seat (4), the top button (5) comprises a push plate (5.3) arranged towards the bottom of the groove, the end part of the push plate (5.3) passes through the bottom of the matching seat (4) to be positioned at the outer side of the matching seat (4) and is used for pushing the port (100.1) of the indwelling needle base (100) to be separated from the clamping hook;
a top spring (6) is arranged between the inner wall of the top button (5) and the bottom of the groove; be equipped with buckle hole (4.3) of the bar that sets up along its direction of height on the lateral wall of cooperation seat (4), be equipped with on top button (5) and be used for wearing to establish buckle (5.2) in buckle hole (4.3), under top spring (6) effect, buckle (5.2) can move between the top position and the bottom position in buckle hole (4.3).
4. The needle assisting device according to claim 1, characterized in that the housing (1) further comprises a guide bracket (7), the guide bracket (7) is fixedly connected with the inner wall of the top shell, and a through hole for sleeving the matching seat (4) is formed in the middle of the guide bracket (7).
5. The needle assisting device according to claim 4, characterized in that one end of the guide bracket (7) far away from the top shell is provided with a spring hole, the supporting plate is provided with a spring guide rod (11) arranged towards the direction of the top shell, one end of the main spring (12) is sleeved on the spring guide rod (11) and is abutted against the supporting plate, and the other end is abutted against the bottom of the spring hole.
6. The needle aid according to claim 1, characterized in that the inner wall of the housing (1) is provided with a strip-shaped limiting groove, and the release button (8) is positioned in the strip-shaped limiting groove to move.
7. The needle aid according to claim 1, characterized in that a lock catch assembly is further arranged on the housing (1), and the lock assembly comprises a lock catch spring (13) and a sliding lock catch (14);
spring grooves are formed in the inner wall of the bottom shell (2) of the shell (1) and located on two sides of the opening, a lock catch spring (13) is arranged in the spring grooves, a sliding lock catch (14) is located above the spring grooves and arranged in parallel with the bottom shell (2), one end of the lock catch spring (13) is abutted to the side wall of the spring groove, and the other end of the lock catch spring (13) is abutted to the sliding lock catch (14);
a lock catch plate opening and a lock catch button (14.1) which are opposite to the opening on the bottom shell (2) are arranged on the sliding lock catch (14), and a lock hook which extends towards the opening of the bottom shell (2) is arranged on the lock catch plate opening; the latch hook can move between a locking position and a separating position, and the latch button (14.1) is pushed to enable the latch spring (13) to be in a compression state, so that the latch hook is moved to the separating position, the latch button (14.1) is released, and the latch hook is moved to the locking position under the resilience force action of the latch spring (13).
8. The needle assisting device according to claim 7, characterized in that the side wall of the housing (1) is provided with a locking hole (1.2), and the part of the locking button (14.1) passing through the locking hole (1.2) is located outside the housing (1).
9. The needle aid according to claim 7, characterized in that the latch assembly further comprises a latch fixture (15), the latch fixture (15) comprising a sleeve, a protruding column (5.1) and a plurality of stopper blocks (4.1) being located inside the sleeve;
the bottom opening of the sleeve is connected with a pressing plate, and the pressing plate is perpendicular to the axis of the sleeve; the pressing plate is fixedly connected with the bottom shell (2), a gap is formed between the pressing plate and the bottom shell, and the sliding lock catch is located in the gap to move.
10. Needle aid according to claim 1, characterized in that the outer wall of the mating seat (4) is provided with two symmetrically arranged release buttons (8).
11. The needle assisting device according to claim 5, characterized in that four spring holes arranged at four corners are arranged on the guide bracket (7), and four spring guide rods (11) arranged at four corners are arranged on the supporting plate;
and a main spring (12) is arranged between each spring hole and the spring guide rod (11) which is arranged opposite to the spring hole.
12. Needle aid according to any one of claims 1 to 11, characterized in that at least one end of the bottom shell (2) is provided with a docking groove or a docking protrusion for connecting the bottom shell (2) with the bottom plate of the indwelling needle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921215092 | 2019-07-30 | ||
| CN201921215092X | 2019-07-30 |
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| Publication Number | Publication Date |
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| CN111068144A true CN111068144A (en) | 2020-04-28 |
| CN111068144B CN111068144B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911345414.7A Active CN111068144B (en) | 2019-07-30 | 2019-12-24 | Needle aid |
| CN201922343736.XU Active CN211884802U (en) | 2019-07-30 | 2019-12-24 | Needle assisting device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922343736.XU Active CN211884802U (en) | 2019-07-30 | 2019-12-24 | Needle assisting device |
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| CN (2) | CN111068144B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112093275A (en) * | 2020-08-25 | 2020-12-18 | 微泰医疗器械(杭州)有限公司 | Medical instrument packaging body |
| CN113082393A (en) * | 2021-04-14 | 2021-07-09 | 郑州万辉医疗设备有限公司 | Automatic needle inserting and assisting device for injection needle |
| CN113663164A (en) * | 2021-08-23 | 2021-11-19 | 普林斯顿医疗科技（珠海）有限公司 | Insulin infusion remaining needle |
| CN113827230A (en) * | 2021-10-09 | 2021-12-24 | 浙江凯立特医疗器械有限公司 | Implantable biosensor implanter |
| CN113827231A (en) * | 2021-11-26 | 2021-12-24 | 上海微创生命科技有限公司 | Needle assisting device for percutaneous implantation of sensor and medical device |
| WO2022198938A1 (en) * | 2021-03-26 | 2022-09-29 | 普昂(杭州)健康管理有限公司 | Split dressing subcutaneous soft needle and puncture method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475324A (en) * | 2021-06-16 | 2022-12-16 | 苏州悦肤达医疗科技有限公司 | Needle assisting device and medical device |
| CN116159206A (en) * | 2021-11-25 | 2023-05-26 | 微泰医疗器械(杭州)股份有限公司 | Needle assist system, method of assembling a needle assist system, and method of use |
| CN114767229B (en) * | 2022-04-14 | 2023-03-24 | 深圳可孚生物科技有限公司 | Auxiliary applicator for biosensor |
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| CN113082393A (en) * | 2021-04-14 | 2021-07-09 | 郑州万辉医疗设备有限公司 | Automatic needle inserting and assisting device for injection needle |
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| CN113827230A (en) * | 2021-10-09 | 2021-12-24 | 浙江凯立特医疗器械有限公司 | Implantable biosensor implanter |
| CN113827231A (en) * | 2021-11-26 | 2021-12-24 | 上海微创生命科技有限公司 | Needle assisting device for percutaneous implantation of sensor and medical device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN211884802U (en) | 2020-11-10 |
| CN111068144B (en) | 2023-04-25 |
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Address after: No.108, Liuze street, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Weitai medical device (Hangzhou) Co.,Ltd. Address before: 4 / F, building 3, No.9 Haishu Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: MICROTECH MEDICAL (HANGZHOU) Co.,Ltd. |
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