CN109893713B - Needle-stick-preventing indwelling needle assembly - Google Patents
Needle-stick-preventing indwelling needle assembly Download PDFInfo
- Publication number
- CN109893713B CN109893713B CN201910222222.0A CN201910222222A CN109893713B CN 109893713 B CN109893713 B CN 109893713B CN 201910222222 A CN201910222222 A CN 201910222222A CN 109893713 B CN109893713 B CN 109893713B
- Authority
- CN
- China
- Prior art keywords
- needle
- elastic sheet
- needling
- steel needle
- plate
- 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.)
- Active
Links
- 208000012266 Needlestick injury Diseases 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 126
- 239000010959 steel Substances 0.000 claims abstract description 126
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 230000002265 prevention Effects 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001467 acupuncture Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 208000024248 Vascular System injury Diseases 0.000 description 1
- 208000012339 Vascular injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Finger-Pressure Massage (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to an anti-needling indwelling needle assembly, which belongs to the field of medical equipment, and comprises a puncture assembly, a hose seat, a hose and an anti-needling assembly; the steel needle is provided with a bulge which is larger than the outer diameter of the steel needle, and the side edge of the hose seat is provided with a notch; the elastic sheet base is a tubular base with an opening at the bottom, an elastic sheet groove at the side and an elastic sheet baffle at the top, a baffle is fixedly arranged in the sleeve, and steel needle passing holes larger than the outer diameter of the bulge are arranged on the elastic sheet baffle and the baffle; the anti-needling elastic sheet is fixedly provided with a propping sheet propped against the outer wall of the steel needle, so that the steel needle is propped against the inner side of the anti-needling elastic sheet; the sleeve pipe is sleeved on the elastic sheet base, and the anti-needling elastic sheet is arranged in the elastic sheet groove and the sleeve pipe; the elastic sheet base is inserted in the hose seat, and the anti-needling elastic sheet protrudes out of the elastic sheet groove and is clamped and hung on the notch; the anti-needling remaining needle assembly can store and protect the steel needle when the needle is pulled out, and has the advantages of simple structure, convenience in installation and good anti-needling effect.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an anti-needling indwelling needle assembly.
Background
With the improvement of living standard of people, the indwelling needle with smaller vascular injury is widely applied to clinic. However, in the process of transfusion operation, the steel needle needs to be extracted from the hose and properly treated after the puncture is finished, and medical staff is possibly stabbed in the process, so that the medical staff are injured or even cross-infected, and the health and safety of the medical staff are endangered.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-needling remaining needle assembly capable of containing and protecting the steel needle during needle drawing, and the anti-needling remaining needle assembly has the advantages of simple structure, convenience in installation and good anti-needling effect.
The technical problems to be solved by the invention are realized by the following technical scheme: the invention relates to an anti-needling indwelling needle assembly, which comprises a puncture assembly, a hose seat and a hose, and is characterized in that: the anti-needling indwelling needle assembly also comprises an anti-needling assembly;
the puncture assembly comprises a needle seat and a steel needle arranged on the needle seat, wherein the steel needle is provided with a bulge which is larger than the outer diameter of the steel needle;
the hose seat comprises a hose seat body and a side tube; a cavity penetrating the hose seat body is formed in the hose seat body, and a separation plug is arranged in the cavity; the cavity above the isolating plug is an injection cavity, and the side tube is arranged on the hose seat body where the injection cavity is located and is communicated with the injection cavity; a notch is arranged on the side edge of the hose seat body below the isolation plug;
the hose is arranged in the injection cavity and extends upwards to the outside of the hose seat body;
the anti-needling assembly comprises a spring plate seat and an anti-needling spring plate arranged in the spring plate seat; the spring plate seat comprises a spring plate base and a sleeve; the elastic sheet base is a tubular base with an opening at the bottom, an elastic sheet groove at the side and an elastic sheet baffle at the top, a limiting plate is arranged on the periphery of the outer wall of the elastic sheet base, and a steel needle passing hole is formed in the middle of the elastic sheet baffle; a baffle plate is fixedly arranged in the sleeve, and a steel needle passing hole is formed in the middle of the baffle plate; the outer diameter of the steel needle passing hole is larger than the outer diameter of the bulge; the upper part of the sleeve is sleeved on the elastic sheet base below the limiting plate and is limited by the limiting plate; the anti-needling elastic sheet is fixed with a propping sheet, and the propping sheet is propped against the outer wall of the steel needle to enable the steel needle to lean against the inner side of the anti-needling elastic sheet; the anti-needling elastic sheet is arranged in the sleeve above the elastic sheet groove and the partition board;
the elastic sheet base above the limiting plate is movably inserted into the cavity below the isolating plug and is limited by the limiting plate, the elastic sheet groove is arranged towards the notch, and the needling prevention elastic sheet can protrude out of the elastic sheet groove and be clamped and hung on the notch; the lower part of the sleeve is movably sleeved on the needle seat, and the steel needle sequentially passes through the steel needle passing hole in the sleeve, the anti-needling elastic sheet, the steel needle passing hole on the elastic sheet base, the isolating plug, the injection cavity and the hose and extends out of the hose.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the anti-needling elastic sheet comprises a limiting seat; the limiting seat comprises a bottom plate, a middle baffle plate and a first connecting plate, the bottom plate and the middle baffle plate are transversely arranged, the middle baffle plate is arranged above the bottom plate, and the first connecting plate is fixedly connected with the bottom plate and the middle baffle plate respectively; the bottom plate and the middle baffle are respectively provided with a limiting hole and a passing hole, the outer diameter of the limiting hole is larger than the outer diameter of the steel needle but smaller than the outer diameter of the bulge, and the length and the width of the passing hole are larger than the outer diameter of the bulge;
the middle baffle is fixedly provided with an elastic arm extending upwards, and the abutting piece is fixed at one side edge of the through hole far away from the elastic arm and is arranged towards the bottom plate; one end of the elastic arm, which is far away from the middle baffle, is provided with a clamping seat which is transversely arranged towards the outside of the elastic sheet groove, and one side edge of the clamping seat, which is far away from the elastic arm, is connected with an upper baffle through a second connecting plate;
the steel needle passes through the limit hole and the through hole to be matched with the anti-needling elastic sheet, and the bulge is positioned above the bottom plate; the distance between the upper baffle plate and the bottom plate is not smaller than the distance between the tip of the steel needle and the bulge, and the distance between the middle baffle plate and the bottom plate is not larger than the distance between the tip of the steel needle and the bulge;
the anti-needling elastic sheet has an opening state and a protection state; when the anti-needling elastic sheet is in a stretching state, the upper baffle plate is abutted against the outer wall of the steel needle, and the clamping seat is clamped and hung on the notch; when the anti-needling elastic sheet is in a protection state, the tip of the steel needle is positioned below the upper baffle, and the orthographic projection of the upper baffle on the middle baffle completely covers the through hole.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the first connecting plates are respectively and fixedly connected to the bottom plate and the end part of the middle baffle plate, which is far away from the same side edge of the elastic arm.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the bottom plate and the middle baffle are arranged in parallel, and the upper baffle, the bottom plate and the middle baffle are also arranged in parallel in the opening state; the first connecting plate is perpendicular to the bottom plate and the middle baffle plate respectively, and the elastic arms are perpendicular to the middle baffle plate in a protection state.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: a flange is arranged on one side of the upper baffle, which is far away from the second connecting plate, and the flange is in the shape of an arc with an opening facing the second connecting plate.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the included angle between the second connecting plate and the clamping seat is 60-80 degrees.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the anti-needling elastic sheet is formed by bending a stainless steel belt with the thickness of 0.05-0.30 mm, and the length and the width of the passing opening are 0.05-0.25 mm larger than the outer diameter of the limiting hole.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the limiting plate is provided with a plug rod, the bottom of the hose seat body is provided with a slot, and the plug rod is matched with the slot.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the needle seat comprises a steel needle base and a needle seat mounting part fixed on the steel needle base; the steel needle base is provided with a needle handle which is matched with the hose seat body and the shell of the sleeve; the needle seat mounting part is of a tubular structure sleeved at the bottom of the steel needle, and a plurality of clamping blocks matched with the steel needle are circumferentially arranged on the inner wall of the needle seat mounting part.
The above-mentioned needle-prick-preventing remaining needle component, its further preferred technical scheme is: the indwelling needle assembly further comprises a protective sleeve, wherein the protective sleeve is arranged at the top of the hose seat body and sleeved outside the steel needle; the rivet with the inverted funnel structure is arranged in the injection cavity above the side pipe communication position, and the bottom sealing sleeve of the hose is arranged on the discharge spout of the rivet.
Compared with the prior art, the invention has the following beneficial effects:
(1) The elastic sheet seat consists of the elastic sheet base and the sleeve, is installed in a sleeving and inserting mode, and is simple in structure and convenient to install; the abutting piece enables the steel needle to lean against the inner side of the anti-needling elastic sheet, so that the anti-needling effect is improved; the anti-needling component is prevented from falling off by the anti-needling elastic sheet being clamped and hung at the notch, the steel needle is stored and protected when the needle is pulled out, the medical staff is prevented from being pricked by the needle point to cause infection, and the anti-needling effect is good.
(2) According to the technical scheme, the needle tip can be automatically contained in the needle-punching-preventing elastic sheet when the needle is pulled out, and the structure design is ingenious.
(3) According to the invention, through a further preferable technical scheme, the first connecting plates are respectively and fixedly connected to the bottom plate and the end part of the middle baffle plate, which is far away from the same side edge of the elastic arm, so that the structural integrity of the needling prevention elastic sheet is stronger.
(4) According to the invention, through a further preferable technical scheme, the bottom plate, the middle baffle plate and the upper baffle plate are arranged in parallel, and the first connecting plate and the elastic arm are arranged vertically to the middle baffle plate, so that the structure of the needling prevention elastic sheet is more compact, and the occupied space is smaller.
(5) According to the invention, through a further preferable technical scheme, the arc-shaped flange is arranged on the side edge of the upper baffle plate, so that friction during movement of the steel needle can be reduced, and the needle pulling is easier.
(6) According to the invention, through a further preferable technical scheme, the included angle between the second connecting plate and the clamping seat is 60-80 degrees, so that the protection effect of the upper baffle plate is better.
(7) According to the further preferred technical scheme, the anti-needling elastic sheet is manufactured by bending a stainless steel belt with the thickness of 0.05-0.30 mm, so that the anti-needling elastic sheet is firm and durable, can be reset quickly and is convenient to produce; the length and width of the passing hole are 0.05 mm-0.25 mm larger than the outer diameter of the limiting hole, so that the steel needle is prevented from shaking in the radial direction when moving, and the stability can be kept.
(8) According to the further preferred technical scheme, the inserted link is matched with the slot, so that the elastic sheet seat is prevented from rotating in the radial direction, and stability can be kept.
(9) According to the invention, through a further preferable technical scheme, the needle handle is arranged on the steel needle base, so that the stress area is increased, and the clamping is convenient; the clamping block is arranged on the inner wall of the needle seat installation part, so that the steel needle is kept stable.
(10) According to the technical scheme, the protective sleeve is sleeved outside the steel needle, so that the steel needle is prevented from stabbing medical staff before puncture; the rivet can guide the steel needle and drain the liquid medicine in the injection cavity.
Drawings
FIG. 1 is a schematic structural view of the present invention, wherein an anti-needling elastic sheet is in a stretched state;
FIG. 2 is a schematic view of a structure of the anti-needling assembly for receiving and protecting a steel needle and releasing the steel needle from the hose base body, wherein the anti-needling elastic sheet is in a protecting state;
FIG. 3 is a schematic structural view of a spring plate seat;
FIG. 4 is a front view of the spring plate seat;
FIG. 5 is a left side view of the spring plate seat;
FIG. 6 is a front view of the dome base;
FIG. 7 is a left side view of the dome base;
FIG. 8 is a front view of the sleeve;
FIG. 9 is a schematic structural view of an anti-needling dome;
FIG. 10 is a schematic illustration of the positions of the bayonet and slot;
FIG. 11 is a front view of the spike assembly;
FIG. 12 is a top view of the spike assembly;
fig. 13 is an assembly view of the protective sleeve.
In the figure: 1-hose, 2-needle holder, 201-steel needle base, 202-needle holder mounting portion, 3-steel needle, 4-protrusion, 5-hose holder body, 6-side tube, 7-isolation plug, 8-injection cavity, 9-notch, 10-spring holder, 11-needle penetration prevention spring, 111-bottom plate, 112-middle baffle, 113-first connecting plate, 114-limit hole, 115-through hole, 116-elastic arm, 117-clamping holder, 118-second connecting plate, 119-upper baffle, 12-spring holder, 13-sleeve, 14-spring slot, 15-spring baffle, 16-limit plate, 17-steel needle through hole, 18-baffle, 19-abutting piece, 20-flange, 21-inserting rod, 22-inserting slot, 23-needle handle, 24-clamping block, 25-protective sleeve, 26-rivet.
Detailed Description
The following detailed description of the invention is presented in conjunction with the accompanying drawings to facilitate a further understanding of the invention and is not intended to limit the scope of the claims thereto.
Example 1: 1-9, an anti-needling indwelling needle assembly comprises a puncture assembly, a hose seat and a hose 1, and further comprises an anti-needling assembly;
the puncture assembly comprises a needle seat 2 and a steel needle 3 arranged on the needle seat, wherein the steel needle is provided with a bulge 4 which is larger than the outer diameter of the steel needle;
the hose seat comprises a hose seat body 5 and a side tube 6; a cavity penetrating the hose seat body is formed in the hose seat body, and a isolating plug 7 is arranged in the cavity; the cavity above the isolating plug is an injection cavity 8, and the side tube is arranged on the hose seat body where the injection cavity is located and is communicated with the injection cavity; a notch 9 is arranged on the side edge of the hose seat body below the isolation plug;
the hose is arranged in the injection cavity and extends upwards to the outside of the hose seat body;
the anti-needling assembly comprises a spring plate seat 10 and an anti-needling spring plate 11 arranged in the spring plate seat; the spring plate seat comprises a spring plate base 12 and a sleeve 13; the elastic sheet base is a tubular base with an opening at the bottom, an elastic sheet groove 14 at the side and an elastic sheet baffle 15 at the top, a limiting plate 16 is circumferentially arranged on the outer wall of the elastic sheet base, and a steel needle passing hole 17 is formed in the middle of the elastic sheet baffle; a baffle 18 is fixedly arranged in the sleeve, and a steel needle passing hole 17 is formed in the middle of the baffle; the outer diameter of the steel needle passing hole is larger than the outer diameter of the bulge; the upper part of the sleeve is sleeved on the elastic sheet base below the limiting plate and is limited by the limiting plate; a propping piece 19 is fixed on the anti-needling elastic piece and propped against the outer wall of the steel needle to enable the steel needle to lean against the inner side of the anti-needling elastic piece; the anti-needling elastic sheet is arranged in the sleeve above the elastic sheet groove and the partition board;
the elastic sheet base above the limiting plate is movably inserted into the cavity below the isolating plug and is limited by the limiting plate, the elastic sheet groove is arranged towards the notch, and the needling prevention elastic sheet can protrude out of the elastic sheet groove and be clamped and hung on the notch; the lower part of the sleeve is movably sleeved on the needle seat, and the steel needle sequentially passes through the steel needle passing hole in the sleeve, the anti-needling elastic sheet, the steel needle passing hole on the elastic sheet base, the isolating plug, the injection cavity and the hose and extends out of the hose.
The working process of the needling prevention indwelling needle assembly is as follows:
before puncture, the steel needle passes through the anti-needling elastic sheet to enable the anti-needling elastic sheet to be clamped and hung on the notch.
When in puncture, the hose enters the body of a patient under the puncture action of the steel needle.
After puncture, medical staff holds the needle stand to withdraw the steel needle, and the steel needle continuously moves towards the needling prevention component. The steel needle passing holes on the elastic sheet baffle plate and the baffle plate are larger than the outer diameter of the protrusions, so that the protrusions on the steel needles can smoothly pass through and limit the movement of the steel needles. Because the anti-needling elastic sheet is clamped and hung on the notch, the anti-needling elastic sheet cannot deviate from the hose seat body under the friction force of the steel needle. Meanwhile, the elastic sheet seat is prevented from falling out of the hose seat body under the friction force action of the steel needle by blocking the elastic sheet baffle by the anti-needling elastic sheet. The two are combined to prevent the needling prevention component from falling out of the hose seat body.
When the steel needle is contained in the anti-needling elastic sheet, the abutting sheet enables the steel needle to lean against the inner side of the anti-needling elastic sheet, and the anti-needling effect is improved. The anti-needling elastic sheet is separated from the notch, and can be separated. Simultaneously, prevent that acupuncture shell fragment no longer blocks the shell fragment baffle, and the shell fragment seat can deviate from.
The steel needle continues to move until the bulge is matched with the anti-needling elastic sheet, and the anti-needling assembly is driven to deviate from the hose seat body under the action of external force.
When the anti-needling remaining needle assembly is used for transfusion to a patient, the liquid medicine enters the injection cavity from the side tube and then enters the human body through the hose. The isolation plug isolates the injection cavity from the outside, so that the liquid medicine is prevented from being polluted.
The elastic sheet base and the sleeve are connected with the hose seat body and the needle seat in a sleeving and inserting mode, so that the structure is simple, and the installation is convenient; the limiting plate on the spring plate base simultaneously limits the spring plate base and the sleeve, so that the position of the spring plate base is more stable.
Example 2: referring to fig. 1, 2 and 9, in the needling prevention indwelling needle assembly according to embodiment 1, the needling prevention elastic sheet includes a limiting seat; the limiting seat comprises a bottom plate 111, a middle baffle 112 and a first connecting plate 113, the bottom plate and the middle baffle are transversely arranged, the middle baffle is arranged above the bottom plate, and the first connecting plate is fixedly connected with the bottom plate and the middle baffle respectively; the bottom plate and the middle baffle are respectively provided with a limiting hole 114 and a passing hole 115, the outer diameter of the limiting hole is larger than the outer diameter of the steel needle but smaller than the outer diameter of the bulge, and the length and the width of the passing hole are larger than the outer diameter of the bulge;
the middle baffle is fixedly provided with an elastic arm 116 extending upwards, and the abutting piece is fixed at one side of the through hole far away from the elastic arm and is arranged towards the bottom plate; one end of the elastic arm, which is far away from the middle baffle plate, is provided with a clamping seat 117 which is transversely arranged towards the outside of the elastic sheet groove, and one side edge of the clamping seat, which is far away from the elastic arm, is connected with an upper baffle plate 119 through a second connecting plate 118;
the steel needle passes through the limit hole and the through hole to be matched with the anti-needling elastic sheet, and the bulge is positioned above the bottom plate; the distance between the upper baffle plate and the bottom plate is not smaller than the distance between the tip of the steel needle and the bulge, and the distance between the middle baffle plate and the bottom plate is not larger than the distance between the tip of the steel needle and the bulge;
the anti-needling elastic sheet has an opening state and a protection state; when the anti-needling elastic sheet is in a stretching state, the upper baffle plate is abutted against the outer wall of the steel needle, and the clamping seat is clamped and hung on the notch; when the anti-needling elastic sheet is in a protection state, the tip of the steel needle is positioned below the upper baffle, and the orthographic projection of the upper baffle on the middle baffle completely covers the through hole.
The process of protecting the needling prevention elastic sheet comprises the following steps:
before puncture, the anti-needling elastic sheet is in an opening state. At this time, the upper baffle, the second connecting plate, the clamping seat and the elastic arm elastically deform towards the outside of the elastic sheet groove under the action of the steel needle, so that the clamping seat is clamped and hung on the notch.
After puncture, the steel needle is pulled out, and continuously moves towards the anti-needling assembly, and the anti-needling elastic sheet is still in a stretching state. Because the clamping seat is clamped and hung on the notch, the anti-needling elastic sheet cannot deviate from the hose seat body under the friction force of the steel needle. Meanwhile, the elastic sheet seat is prevented from being separated from the hose seat body under the friction force action of the steel needle through the blocking of the upper baffle to the elastic sheet baffle. The two are combined to prevent the needling prevention component from falling out of the hose seat body.
When the tip of the steel needle moves away from the upper baffle plate, the anti-needling elastic sheet becomes a protection state. At the moment, the upper baffle plate, the second connecting plate and the clamping seat are reset under the action of the elastic arm, so that the upper baffle plate can completely block the moving path of the steel needle, and the tip of the steel needle is prevented from extending out of the anti-needling elastic sheet; and the clamping seat is separated from the notch, and the anti-needling elastic sheet can be separated. Meanwhile, the upper baffle is used for preventing the elastic sheet baffle from blocking, and the elastic sheet seat can be separated.
The steel needle continues to move until the bulge contacts with the limiting hole, and the bulge is larger than the outer diameter of the limiting hole, so that the needling prevention assembly is driven to deviate from the hose seat body under the action of external force.
The bottom plate is connected with the middle baffle through the first connecting plate, so that a certain distance is reserved between the limiting hole and the through hole, and the movement of the steel needle is limited. The outer diameter of the limiting hole is larger than that of the steel needle, so that the steel needle can pass smoothly; the length and the width of the passing opening are larger than the outer diameter of the bulge, so that the bulge on the steel needle can pass smoothly. The distance between the upper baffle and the bottom plate is not smaller than the distance between the tip of the steel needle and the bulge, and the distance between the middle baffle and the bottom plate is not larger than the distance between the tip of the steel needle and the bulge, so that the tip of the steel needle can be contained in the anti-needling elastic sheet.
Example 3: referring to fig. 9, in the needle-stick preventing indwelling needle assembly according to embodiment 2, the first connecting plates are fixedly connected to the bottom plate and the end of the middle baffle plate away from the same side of the elastic arm, respectively.
The components of the needling prevention elastic sheet are connected end to end, and the structural integrity is stronger.
Example 4: referring to fig. 1 and 2, in the needling prevention retention needle assembly according to embodiment 3, the bottom plate and the middle baffle are disposed in parallel, and the upper baffle and the bottom plate and the middle baffle are also disposed in parallel in the open state; the first connecting plate is perpendicular to the bottom plate and the middle baffle plate respectively, and the elastic arms are perpendicular to the middle baffle plate in a protection state.
The structure of the needling prevention elastic sheet is more compact, the occupied space is smaller, and the production cost can be reduced.
Example 5: referring to fig. 1, 2 and 9, in the needle-stick preventing remaining needle assembly according to embodiment 2, a side edge of the upper baffle plate, which is far away from the second connecting plate, is provided with a flange 20, and the flange is in a circular arc shape with an opening facing the second connecting plate.
When the anti-needling elastic sheet is in a stretching state, the arc part of the flange is propped against the outer wall of the steel needle, so that the friction force in the moving process of the steel needle can be reduced, and the needle pulling operation is easier.
Example 6: referring to fig. 2, in the anti-needling indwelling needle assembly according to embodiment 2, the angle between the second connecting plate and the card seat is 70 °.
When the anti-needling elastic sheet is in a protection state, the upper baffle plate has a better protection effect due to the included angle of 70 degrees.
Example 7: referring to fig. 9, in the needle-penetration preventing indwelling needle assembly according to embodiment 2, the needle-penetration preventing elastic sheet is made of a stainless steel band with a thickness of 0.15mm, and the length and width of the passing hole are 0.12mm larger than the outer diameter of the limiting hole.
The stainless steel band with the thickness of 0.15mm has the advantages of firmness, durability, high elasticity and convenience in production and manufacture, and can provide larger kinetic energy for rebound of the needling prevention elastic sheet and realize quick reset.
The length and width of the passing opening are 0.12mm larger than those of the limiting hole, so that the steel needle is prevented from shaking in the radial direction when moving due to the overlarge passing opening.
Example 8: referring to fig. 10, in the anti-needling remaining needle assembly of embodiment 1, the limiting plate is provided with a plunger 21, the bottom of the hose seat body is provided with a slot 22, and the plunger is matched with the slot.
The inserted bar cooperates with slot, avoids the shell fragment base to rotate in radial, plays certain fixed action simultaneously.
Example 9: referring to fig. 11 and 12, in an anti-needling indwelling needle assembly according to embodiment 1, the needle holder includes a steel needle base 201 and a needle holder mounting portion 202 fixed to the steel needle base; the steel needle base is provided with a needle handle 23 which is matched with the hose seat body and the shell of the sleeve; the needle seat mounting part is of a tubular structure sleeved at the bottom of the steel needle, and three clamping blocks 24 matched with the steel needle are circumferentially arranged on the inner wall of the needle seat mounting part.
The needle handle is held by the hand for operation when the needle is pulled out, so that the stress area is large, and the operation is convenient; three clamping blocks are uniformly arranged on the inner wall of the needle seat mounting part in the circumferential direction, and the steel needle is clamped inside, so that the stability can be kept during movement.
Example 10: referring to fig. 1 and 13, in an anti-puncture indwelling needle assembly according to embodiment 1, the indwelling needle assembly further comprises a protective sleeve 25 which is mounted on top of the catheter base body and is sleeved outside the steel needle; a rivet 26 with an inverted funnel structure is arranged in the injection cavity above the side pipe communication position, and the bottom of the hose is sealed and sleeved on the discharge spout of the rivet.
The protective sleeve protects the steel needle before puncture, and the steel needle is taken down during puncture.
The liquid medicine enters the hose through the leakage mouth of the rivet under the flow guiding effect of the rivet funnel part. The funnel part of the rivet is also used for guiding the steel needle, so that the steel needle can conveniently pass through the rivet.
Claims (9)
1. The utility model provides a prevent acupuncture needle subassembly of remaining, includes puncture subassembly, hose seat and hose, its characterized in that: the anti-needling indwelling needle assembly also comprises an anti-needling assembly;
the puncture assembly comprises a needle seat and a steel needle arranged on the needle seat, wherein the steel needle is provided with a bulge which is larger than the outer diameter of the steel needle;
the hose seat comprises a hose seat body and a side tube; a cavity penetrating the hose seat body is formed in the hose seat body, and a separation plug is arranged in the cavity; the cavity above the isolating plug is an injection cavity, and the side tube is arranged on the hose seat body where the injection cavity is located and is communicated with the injection cavity; a notch is arranged on the side edge of the hose seat body below the isolation plug;
the hose is arranged in the injection cavity and extends upwards to the outside of the hose seat body;
the anti-needling assembly comprises a spring plate seat and an anti-needling spring plate arranged in the spring plate seat; the spring plate seat comprises a spring plate base and a sleeve; the elastic sheet base is a tubular base with an opening at the bottom, an elastic sheet groove at the side and an elastic sheet baffle at the top, a limiting plate is arranged on the periphery of the outer wall of the elastic sheet base, and a steel needle passing hole is formed in the middle of the elastic sheet baffle; a baffle plate is fixedly arranged in the sleeve, and a steel needle passing hole is formed in the middle of the baffle plate; the outer diameter of the steel needle passing hole is larger than the outer diameter of the bulge; the upper part of the sleeve is sleeved on the elastic sheet base below the limiting plate and is limited by the limiting plate; the anti-needling elastic sheet is fixed with a propping sheet, and the propping sheet is propped against the outer wall of the steel needle to enable the steel needle to lean against the inner side of the anti-needling elastic sheet; the anti-needling elastic sheet is arranged in the sleeve above the elastic sheet groove and the partition board;
the elastic sheet base above the limiting plate is movably inserted into the cavity below the isolating plug and is limited by the limiting plate, the elastic sheet groove is arranged towards the notch, and the needling prevention elastic sheet can protrude out of the elastic sheet groove and be clamped and hung on the notch; the lower part of the sleeve is movably sleeved on the needle seat, and the steel needle sequentially passes through the steel needle passing hole in the sleeve, the anti-needling shrapnel, the steel needle passing hole on the shrapnel base, the isolation plug, the injection cavity and the hose and extends out of the hose;
the anti-needling elastic sheet comprises a limiting seat; the limiting seat comprises a bottom plate, a middle baffle plate and a first connecting plate, the bottom plate and the middle baffle plate are transversely arranged, the middle baffle plate is arranged above the bottom plate, and the first connecting plate is fixedly connected with the bottom plate and the middle baffle plate respectively; the bottom plate and the middle baffle are respectively provided with a limiting hole and a passing hole, the outer diameter of the limiting hole is larger than the outer diameter of the steel needle but smaller than the outer diameter of the bulge, and the length and the width of the passing hole are larger than the outer diameter of the bulge;
the middle baffle is fixedly provided with an elastic arm extending upwards, and the abutting piece is fixed at one side edge of the through hole far away from the elastic arm and is arranged towards the bottom plate; one end of the elastic arm, which is far away from the middle baffle, is provided with a clamping seat which is transversely arranged towards the outside of the elastic sheet groove, and one side edge of the clamping seat, which is far away from the elastic arm, is connected with an upper baffle through a second connecting plate;
the steel needle passes through the limit hole and the through hole to be matched with the anti-needling elastic sheet, and the bulge is positioned above the bottom plate; the distance between the upper baffle plate and the bottom plate is not smaller than the distance between the tip of the steel needle and the bulge, and the distance between the middle baffle plate and the bottom plate is not larger than the distance between the tip of the steel needle and the bulge;
the anti-needling elastic sheet has an opening state and a protection state; when the anti-needling elastic sheet is in a stretching state, the upper baffle plate is abutted against the outer wall of the steel needle, and the clamping seat is clamped and hung on the notch; when the anti-needling elastic sheet is in a protection state, the tip of the steel needle is positioned below the upper baffle, and the orthographic projection of the upper baffle on the middle baffle completely covers the through hole.
2. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the first connecting plates are respectively and fixedly connected to the bottom plate and the end part of the middle baffle plate, which is far away from the same side edge of the elastic arm.
3. An anti-needlestick needle assembly as in claim 2, wherein: the bottom plate and the middle baffle are arranged in parallel, and the upper baffle, the bottom plate and the middle baffle are also arranged in parallel in the opening state; the first connecting plate is perpendicular to the bottom plate and the middle baffle plate respectively, and the elastic arms are perpendicular to the middle baffle plate in a protection state.
4. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: a flange is arranged on one side of the upper baffle, which is far away from the second connecting plate, and the flange is in the shape of an arc with an opening facing the second connecting plate.
5. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the included angle between the second connecting plate and the clamping seat is 60-80 degrees.
6. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the anti-needling elastic sheet is formed by bending a stainless steel belt with the thickness of 0.05-0.30 mm, and the length and the width of the passing opening are 0.05-0.25 mm larger than the outer diameter of the limiting hole.
7. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the limiting plate is provided with a plug rod, the bottom of the hose seat body is provided with a slot, and the plug rod is matched with the slot.
8. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the needle seat comprises a steel needle base and a needle seat mounting part fixed on the steel needle base; the steel needle base is provided with a needle handle which is matched with the hose seat body and the shell of the sleeve; the needle seat mounting part is of a tubular structure sleeved at the bottom of the steel needle, and a plurality of clamping blocks matched with the steel needle are circumferentially arranged on the inner wall of the needle seat mounting part.
9. An anti-needlestick needle indwelling needle assembly as defined in claim 1, in which: the indwelling needle assembly further comprises a protective sleeve, wherein the protective sleeve is arranged at the top of the hose seat body and sleeved outside the steel needle; the rivet with the inverted funnel structure is arranged in the injection cavity above the side pipe communication position, and the bottom sealing sleeve of the hose is arranged on the discharge spout of the rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222222.0A CN109893713B (en) | 2019-03-22 | 2019-03-22 | Needle-stick-preventing indwelling needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222222.0A CN109893713B (en) | 2019-03-22 | 2019-03-22 | Needle-stick-preventing indwelling needle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109893713A CN109893713A (en) | 2019-06-18 |
| CN109893713B true CN109893713B (en) | 2023-11-14 |
Family
ID=66953400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910222222.0A Active CN109893713B (en) | 2019-03-22 | 2019-03-22 | Needle-stick-preventing indwelling needle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109893713B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975061B (en) * | 2019-11-19 | 2021-09-10 | 山东省千佛山医院 | Puncture-preventing remaining needle capable of continuously supplying liquid |
| CN111921039B (en) * | 2020-06-30 | 2022-05-24 | 江苏苏云医疗器材有限公司 | Prevent that acupuncture keeps somewhere needle subassembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157002A (en) * | 1997-08-22 | 1999-03-02 | Terumo Corp | Indwelling needle assembly |
| CN101352587A (en) * | 2007-07-25 | 2009-01-28 | 钱良 | Medical device for preventing puncture wound by needle |
| CN103285449A (en) * | 2012-09-04 | 2013-09-11 | 上海普益医疗器械有限公司 | Puncture-proof indwelling needle |
| CN103736170A (en) * | 2013-10-12 | 2014-04-23 | 苏州市雅思精密模具有限公司 | Anti-puncture remaining needle |
| CN105056342A (en) * | 2015-09-02 | 2015-11-18 | 山东新华安得医疗用品有限公司 | Device with needling prevention function |
| CN205698723U (en) * | 2016-04-13 | 2016-11-23 | 朱哲 | A kind of remaining needle |
| CN205948128U (en) * | 2016-05-12 | 2017-02-15 | 广东爱迪医疗科技有限公司 | Needle is kept somewhere to preventing pricking wound type |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
| CN209984710U (en) * | 2019-03-22 | 2020-01-24 | 江苏苏云医疗器材有限公司 | Needle-prick prevention indwelling needle assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8992483B2 (en) * | 2007-03-27 | 2015-03-31 | Nipro Corporation | Indwelling needle assembly and protector |
| CN203196075U (en) * | 2013-04-03 | 2013-09-18 | 英属维尔京群岛圣采科技投资有限公司 | Structure for anti-pricking indwelling needle |
-
2019
- 2019-03-22 CN CN201910222222.0A patent/CN109893713B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157002A (en) * | 1997-08-22 | 1999-03-02 | Terumo Corp | Indwelling needle assembly |
| CN101352587A (en) * | 2007-07-25 | 2009-01-28 | 钱良 | Medical device for preventing puncture wound by needle |
| CN103285449A (en) * | 2012-09-04 | 2013-09-11 | 上海普益医疗器械有限公司 | Puncture-proof indwelling needle |
| CN103736170A (en) * | 2013-10-12 | 2014-04-23 | 苏州市雅思精密模具有限公司 | Anti-puncture remaining needle |
| CN105056342A (en) * | 2015-09-02 | 2015-11-18 | 山东新华安得医疗用品有限公司 | Device with needling prevention function |
| CN205698723U (en) * | 2016-04-13 | 2016-11-23 | 朱哲 | A kind of remaining needle |
| CN205948128U (en) * | 2016-05-12 | 2017-02-15 | 广东爱迪医疗科技有限公司 | Needle is kept somewhere to preventing pricking wound type |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
| CN209984710U (en) * | 2019-03-22 | 2020-01-24 | 江苏苏云医疗器材有限公司 | Needle-prick prevention indwelling needle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109893713A (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109893713B (en) | Needle-stick-preventing indwelling needle assembly | |
| JP2004195227A (en) | Safety needle with collapsible sheath | |
| CN209984710U (en) | Needle-prick prevention indwelling needle assembly | |
| CN205307510U (en) | Vein detained needle capable of preventing needling | |
| CN213789324U (en) | Prevent acupuncture needle of staying | |
| CN217311431U (en) | Safety syringe and safety syringe needle thereof | |
| CN211583180U (en) | Novel medical needle | |
| CN106390233B (en) | Disposable automatic pop-up medical needle | |
| CN105125224A (en) | Visual return blood anti-reflux two-way blood taking needle | |
| CN211611092U (en) | Needle-prick-proof and damage-free needle | |
| CN215305915U (en) | Safety blood taking needle | |
| CN212235496U (en) | Prevent acupuncture subassembly | |
| CN211383156U (en) | Withstand voltage type prevents that acupuncture stays needle | |
| CN213347203U (en) | Venous indwelling needle with anti-acupuncture protection device | |
| CN211096623U (en) | Safety infusion apparatus capable of preventing needle-stick injury and blood transmission | |
| CN111921039B (en) | Prevent that acupuncture keeps somewhere needle subassembly | |
| CN210096552U (en) | Transfusion needle | |
| CN110193116B (en) | Infusion needle | |
| CN209826744U (en) | Anti-needle-prick disposable blood taking needle | |
| CN1803209A (en) | Safe vein indwelling needle catheter | |
| CN213465028U (en) | Safety arteriovenous blood sampling needle | |
| CN212415737U (en) | Puncture needle rebounding device | |
| CN110694141A (en) | Needle-prick-proof and damage-free needle | |
| CN220001773U (en) | Safety blood taking needle | |
| CN218853248U (en) | Arteriovenous indwelling needle |
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 |