CN110075388A - A kind of anti-needle thorn protective device and the remaining needle using the anti-needle thorn protective device - Google Patents
A kind of anti-needle thorn protective device and the remaining needle using the anti-needle thorn protective device Download PDFInfo
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- CN110075388A CN110075388A CN201910496154.7A CN201910496154A CN110075388A CN 110075388 A CN110075388 A CN 110075388A CN 201910496154 A CN201910496154 A CN 201910496154A CN 110075388 A CN110075388 A CN 110075388A
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- needle
- inner sleeve
- outer tube
- sleeve
- puncture needle
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- 230000001681 protective effect Effects 0.000 title claims abstract description 23
- 238000001467 acupuncture Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 15
- 239000008280 blood Substances 0.000 description 10
- 210000004369 blood Anatomy 0.000 description 10
- 230000036961 partial effect Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 4
- 206010011985 Decubitus ulcer Diseases 0.000 description 3
- 208000004210 Pressure Ulcer Diseases 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 208000035049 Blood-Borne Infections Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1588—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Finger-Pressure Massage (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of anti-needle thorn protective device, including anti-acupuncture group part, anti-acupuncture group part includes inner sleeve, and being arranged on inner sleeve can be along the outer tube that inner sleeve moves；Middle sleeve is equipped between inner sleeve and outer tube, inner sleeve is connected with outer tube by middle sleeve, and outer tube can be moved along middle sleeve, and middle sleeve can be moved along inner sleeve；Be equipped at least one baffle in inner sleeve, baffle and inner sleeve clearance fit, puncture needle through baffle and with baffle clearance fit.The invention also discloses a kind of remaining needles using the anti-needle thorn protective device.Inner sleeve, middle sleeve and the outer tube of the anti-acupuncture group part of the present invention avoid puncture needle from exposing, avoid stabbing medical staff for wrapping puncture needle during the withdraw of the needle；Middle sleeve is equipped between inner sleeve and outer tube, to reduce the overall length of anti-acupuncture group part；Baffle prevents puncture needle to be threaded back through for blocking puncture needle, i.e., during the puncture needle withdraw of the needle, then punctures to flexible tube base direction.
Description
Technical field
The present invention relates to the technical fields of infusion apparatus, and in particular to a kind of anti-needle thorn protective device and is pierced using the anti-needle
The remaining needle of protective device.
Background technique
In recent years, venous detaining needle application range constantly expands, and is widely used in clinical Zhong Ge department.Operation step
Suddenly successively are as follows: prick tourniquet, removal shield needle cap, left-right looseness puncture needle, pinpoint inclined plane and spend straight thrust veins upward with 15 to 30, see
After blood back reduce angle to 5 to 10 degree, continue 2 millimeters of inserting needle, recession 2 to 3 millimeters of puncture needle, hold needle stand for conduit and puncture needle
It is all sent into blood vessel together, unclamps tourniquet opening governor, puncture needle is withdrawn from completely, fixes remaining needle, but clinic is stayed
It sets pin puncture successfully to drop back puncture needle, when what puncture needle withdrew from retaining needle flexible tube base is easy to happen in a flash needle pricks medical care people
The risk of member, easily leads to blood borne disease.
Summary of the invention
It is an object of the invention to: a kind of indwelling that anti-needle pierces protective device and the anti-needle is used to pierce protective device is provided
Needle stabs medical staff when extracting puncture needle from flexible tube base after can effectively prevent remaining needle indwelling success.
The technical scheme adopted by the invention is as follows:
A kind of anti-needle thorn protective device, it is characterised in that: including anti-acupuncture group part, anti-acupuncture group part includes inner sleeve, in inner sleeve
Being arranged on pipe can be along the outer tube that inner sleeve moves.
Middle sleeve is equipped between inner sleeve and outer tube, inner sleeve is connected with outer tube by middle sleeve, outer tube energy
Enough to move along middle sleeve, middle sleeve can be moved along inner sleeve.
It is equipped with middle positive stop lug boss in middle sleeve bottom end, middle snap ring is equipped on middle sleeve top, is equipped on the top of outer tube
The outer snap ring matched with middle positive stop lug boss is equipped with the interior positive stop lug boss matched with middle snap ring in interior casing shoe, covers in the middle
When pipe moves to the bottom end of inner sleeve, middle snap ring is held out against in the end face of interior positive stop lug boss, when outer tube moves to the bottom of middle sleeve
When end, outer snap ring is held out against in the end face of middle positive stop lug boss.
At least one baffle, baffle and inner sleeve clearance fit are equipped in inner sleeve, puncture needle is through baffle and and baffle
Clearance fit.
The block mobile for the inside casing shoe of anti-stop tab is equipped in inner sleeve.
It is fixedly connected with transparent end cap in the bottom end of outer tube, is equipped with opening in the bottom end of end cap, is fixed in opening
There is the ventilated membrane made of gas-permeable, liquid-impermeable material.
It is equipped with symmetrical operation handle on outer tube, several raised ribs are equipped on the operating surface of operation handle.
Handle is inverted u-shaped, and the bottom end of operation handle is fixedly connected with outer tube.
A kind of remaining needle using anti-needle thorn protective device, including flexible tube base and puncture needle, anti-acupuncture group part are arranged soft
The bottom end of the bottom end of tube socket, inner sleeve and flexible tube base connects, and puncture needle setting is in outer tube, the bottom of puncture needle and housing
Pipe is fixedly connected.
Inner sleeve is coated at or is embedded in the bottom end of flexible tube base, be successively arranged on flexible tube base annular groove and several first
Lug boss, the first lug boss are evenly spaced on along the circumferential direction of flexible tube base, are equipped in the end of inner sleeve and are matched with annular groove
The second lug boss.
For the anti-acupuncture group part of the present invention for preventing when puncture needle withdraws from flexible tube base, puncture needle stabs medical staff, anti-needle
Inner sleeve, middle sleeve and the outer tube of thorn component avoid puncture needle exposed for wrapping puncture needle during the withdraw of the needle
Out, it avoids stabbing medical staff；Middle sleeve is equipped between inner sleeve and outer tube, to reduce the totality of anti-acupuncture group part
Length；In the middle when sleeve movement to the bottom end of inner sleeve, middle snap ring is held out against in the end face of interior positive stop lug boss, when outer tube moves to
When the bottom end of middle sleeve, outer snap ring is held out against in the end face of middle positive stop lug boss, plays position-limiting action；Baffle is used to block puncture needle,
Prevent puncture needle to be threaded back through, i.e., during the puncture needle withdraw of the needle, then to the direction of flexible tube base puncture；Ring is successively arranged on flexible tube base
Shape slot and several first lug bosses, annular groove and the first lug boss make inner sleeve certain for limiting to inner sleeve
Under power effect, it can just be detached from flexible tube base.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention (one)；
Fig. 2 is the partial sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram that anti-acupuncture group part is stretched out and separated with flexible tube base in Fig. 2；
Fig. 4 is structural schematic diagram (two) of the invention；
The structural schematic diagram that the anti-acupuncture group part that Fig. 5 is Fig. 4 stretches out；
Fig. 6 is the partial sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of cushion film；
Fig. 8 is the structural schematic diagram (one) of soft rubber stopper；
Fig. 9 is the structural schematic diagram (two) of soft rubber stopper；
Figure 10 is the structural schematic diagram of fixing seat；
Figure 11 is that the mounting hole of fixing seat is the cross-sectional view of stepped hole；
Figure 13 is partial enlargement diagram in Figure 12；
Figure 14 is the structural schematic diagram of soft rubber stopper lower part and fixing seat transition fit；
Figure 15 is the partial enlargement diagram of Figure 14；
Figure 16 is the structural schematic diagram of soft rubber stopper lower part and fixing seat interference fit；
Figure 17 is the partial enlargement diagram of Figure 16；
Figure 18 is the second annular relief of soft rubber stopper lower part and the structural schematic diagram of fixing seat interference fit；
Figure 19 is the partial enlargement diagram of Figure 18.
Specific embodiment
As shown in figures 1-19, a kind of anti-needle pierces protective device, including anti-acupuncture group part, anti-acupuncture group part include inner sleeve 6,
Being arranged on inner sleeve 6 can be set in outside inner sleeve 6 along the outer tube 8 that inner sleeve 6 moves, outer tube 8,8 energy of outer tube
It enough being moved along 6 outer wall of inner sleeve or outer tube 8 is set in inner sleeve 6, outer tube 8 can be moved along 6 inner wall of inner sleeve,
Inner sleeve 6 is connect with the bottom end of flexible tube base 3, and puncture needle 1 is equipped in outer tube 8, and puncture needle 1 sequentially passes through inner sleeve 6 and soft
The bottom of tube socket 3, puncture needle 1 is fixedly connected with outer tube 8.
Usual situation is set in outside inner sleeve 6 using outer tube 8, and outer tube 8 can be moved along 6 outer wall of inner sleeve, be convenient for
The middle part for holding outer tube 8 is operated, and is moved easily outer tube 8, while convenient for the motion conditions of observation outer tube 8.
Middle sleeve 18, inner sleeve 6 and outer tube 8 is equipped between inner sleeve 6 and outer tube 8 to connect by middle sleeve 18,
Outer tube 8 can be moved along middle sleeve 18, and middle sleeve 18 can be moved along inner sleeve 6, and puncture needle 1 runs through middle sleeve 18, inside
Middle sleeve 18 is equipped between casing 6 and outer tube 8, to reduce the overall length of anti-acupuncture group part.
When outer tube 8 be set in inner sleeve 6 it is outer when, inner sleeve 6 and outer tube 8 are connected by middle sleeve 18,8 energy of outer tube
Enough outer walls along middle sleeve 18 move, and middle sleeve 18 can be moved along the outer wall of inner sleeve 6, and puncture needle 1 runs through middle sleeve 18；When
When outer tube 8 is set in inner sleeve 6, inner sleeve 6 and outer tube 8 are connected by middle sleeve 18, and outer tube 8 can be along middle sleeve
18 inner wall is mobile, and middle sleeve 18 can be moved along the inner wall of inner sleeve 6, and puncture needle 1 runs through middle sleeve 18.
It is socket between inner sleeve 6, middle sleeve 18 and outer tube 8, only simple change socket form belongs to of the invention
Protection scope.
It is equipped with middle positive stop lug boss 18b in 18 bottom end of middle sleeve, middle snap ring 18a is equipped on 18 top of middle sleeve, in outer tube 8
Top be equipped with the outer snap ring 8a that matches with middle positive stop lug boss 18b, be equipped in 6 bottom end of inner sleeve and matched with middle snap ring 18a
Interior positive stop lug boss 6b, when middle sleeve 18 moves to the bottom end of inner sleeve 6, middle snap ring 18a is held out against interior positive stop lug boss 6b's
End face, when outer tube 8 moves to the bottom end of middle sleeve 18, outer snap ring 8a is held out against in the end face of middle positive stop lug boss 18b.
When outer tube 8 be set in inner sleeve 6 it is outer when, middle positive stop lug boss 18b is arranged on the outer wall of middle sleeve 18, middle snap ring
18a is arranged on the inner wall of middle sleeve 18, and interior positive stop lug boss 6b is arranged on the outer wall of inner sleeve 6, and outer snap ring 8a is arranged outside
On the inner wall of casing 8；When outer tube 8 is set in inner sleeve 6, middle positive stop lug boss 18b is arranged on the inner wall of middle sleeve 18,
Middle snap ring 18a is arranged on the outer wall of middle sleeve 18, and interior positive stop lug boss 6b is arranged on the inner wall of inner sleeve 6, and outer snap ring 8a is set
It sets on the outer wall of outer tube 8.
Provide for simple replacement of middle positive stop lug boss 18b, middle snap ring 18a, interior positive stop lug boss 6b and the position outer snap ring 8a belongs to this
The protection scope of invention.
Inner sleeve 6, middle sleeve 18 and the outer tube 8 of anti-acupuncture group part are for wrapping up puncture needle 1 during the withdraw of the needle
Firmly, it avoids puncture needle 1 from exposing, avoids stabbing medical staff, middle sleeve 18 is equipped between inner sleeve 6 and outer tube 8, from
And reduce the overall length of anti-acupuncture group part.
At least one baffle 16, baffle 16 and 6 clearance fit of inner sleeve are equipped in inner sleeve 6, puncture needle 1 runs through baffle
16 and with 16 clearance fit of baffle, the baffle 16 of the preferred metal material of baffle 16, can also use other materials baffle 16, gear
Piece 16 can be the other shapes such as round, rectangular, when the quantity of baffle 16 is 1, when puncture needle 1 is extracted out from baffle 16
Afterwards, baffle 16 falls and contacts with the bottom of inner sleeve 6, and puncture needle 1 and the hole of baffle 16 are misaligned, so that back stitching is avoided, when
When the quantity of baffle 16 is 2 or is multiple, the size of each baffle 16 is different, after puncture needle 1 is extracted out from baffle 16, gear
Piece 16 falls and contacts with the bottom of inner sleeve 6, and for corresponding pin hole not in sustained height, the corresponding pin hole of each baffle 16 is not right
Together, a baffle 16 shelters from the pin hole of adjacent baffle 16, thus avoid back stitching, i.e., during 1 withdraw of the needle of puncture needle, then to
The direction of flexible tube base 3 punctures；The block 17 mobile to 6 bottom end of inner sleeve for anti-stop tab 16, block are equipped in inner sleeve 6
17 with inner sleeve 6 be clamped or it is affixed.
Inner sleeve 6 is coated at or is embedded in the bottom end of flexible tube base 3, and annular groove 3b and several is successively arranged on flexible tube base 3
A first lug boss 3c, the first lug boss 3c are evenly spaced on along the circumferential direction of flexible tube base 3, the end of inner sleeve 6 be equipped with
The second lug boss 6a that annular groove 3b is matched, annular groove 3b and the first lug boss 3c make interior for limiting to inner sleeve 6
Casing 6 can just be detached from flexible tube base 3 under certain force effect.
It is equipped with symmetrical operation handle 9 on outer tube 8, several raised ribs are equipped on the operating surface of operation handle 9
10, raised rib 10 prevents from skidding for increasing frictional force.
Operation handle 9 is inverted u-shaped, and the bottom end of operation handle 9 is fixedly connected with outer tube 8, operation handle 9 and outer tube 8
It is integrally formed.
It can also be arranged in the side of outer tube 8 using conventional operation handle 9.
Transparent end cap 19 is fixedly connected in the bottom end of outer tube 8, puncture needle 1 is through outer tube 8 and extends to end cap
In 19, there are interval, the bottom end of puncture needle 1 in puncture needle 1 and 19 clearance fit of end cap, the bottom end of puncture needle 1 and the bottom end of end cap 19
It opens wide, is equipped with opening in the bottom end of end cap 19, is fixed with the ventilated membrane 20 made of gas-permeable, liquid-impermeable material in opening, breathes freely
Film 20 can be made of PTFE film, and the blood back mode of the remaining needle of this set form is the bottom end blood back in puncture needle 1,
The side on 1 top of puncture needle is not open, and this form is suitble to and the lesser puncture needle 1 of diameter, the bend resistance of enhancing puncture needle 1
Ability.
When being not provided with transparent end cap 19 in the bottom end of outer tube 8, remaining needle uses to return at the top of puncture needle 1
Blood is equipped with notch in the side at the top of puncture needle 1, which is used for blood back, and the bottom of puncture needle 1 is closed, when puncture needle 1
Bottom when extending to outer tube 8, closing fixation is carried out using mode for dispensing glue；When the bottom of puncture needle 1 is not pierced by outer tube 8
Bottom when, it is closed by the bottom of outer tube 8, this is the prior art, and details are not described herein.
A kind of remaining needle using anti-needle thorn protective device, including flexible tube base 3 and puncture needle 1, anti-acupuncture group part setting exist
The bottom end of flexible tube base 3, for anti-acupuncture group part for preventing when puncture needle 1 withdraws from flexible tube base 3, puncture needle 1 stabs medical staff, wears
Pricker 1 be arranged in outer tube 8, the bottom of puncture needle 1 is fixedly connected with outer tube 8, puncture needle sequentially pass through middle sleeve 18,
Inner sleeve 6 and flexible tube base 3.
Be equipped with instruction structure for judging withdraw of the needle distance on anti-acupuncture group part, instruction structure for judge the withdraw of the needle away from
From, several bayonets are set on inner sleeve 6, bayonet is circumferentially distributed along inner sleeve 6, on outer tube 8 be equipped with and inner sleeve 6
The instruction boss 7 that upper latch notch matches, instruction boss is 2 millimeters -3 millimeters long, and instruction boss 7 is arranged in bayonet, when after the completion
When removing puncture needle 1, instruction boss 7 exits 6 bayonet of inner sleeve, carries out retained needle puncture in clinical staff and executes withdraw of the needle operation
When step, that is, this position of observable, this step is completed, when seeing that boss exits 6 bayonet of inner sleeve convenient for observation.
When outer tube 8 be set in inner sleeve 6 it is outer when, bayonet is arranged in the top of inner sleeve 6, and the setting of instruction boss 7 is outside
The top of casing 8, when outer tube 8 is set in inner sleeve 6, the bottom end of inner sleeve 6 is arranged in bayonet, and instruction boss 7 is arranged
In the bottom end of outer tube 8.
As shown in Figure 11, Figure 12 and Figure 13, anti-overflow plug, including soft rubber stopper 14 and fixing seat 15 are equipped in flexible tube base 3, it is soft
Rubber plug top 14a and soft rubber stopper lower part 14b is cylindrical body, and the diameter of soft rubber stopper top 14a is straight greater than soft rubber stopper lower part 14b
Diameter, soft rubber stopper 14 is whole in T shape, and the pin hole 14d matched with the puncture needle 1 of remaining needle is equipped in soft rubber stopper lower part 14b,
Mounting hole 15b is equipped in fixing seat 15, soft rubber stopper lower part 14b is mounted in the mounting hole 15b of fixing seat 15, and mounting hole 14d is
Stepped hole, mounting hole 14d include the first hole 150 and the second hole 152, and the second hole 152 is under the bottom end of flexible tube base 3, soft rubber stopper
Portion 14b is arranged in mounting hole 14d and is interference fitted with the second hole 152, remaining position of soft rubber stopper lower part 14b and mounting hole 14d
It fits closely, soft rubber stopper top 14a and flexible tube base 3 are interference fitted, fixing seat 15 and 3 clearance fit of flexible tube base, in fixing seat 15
Outer wall be equipped with annular convex platform 15a, first annular lug boss 3a for blocking annular convex platform 15a is equipped in flexible tube base 3,
The end face tightening of first annular lug boss 3a and annular convex platform 15a cooperates, and fills in capable limit to anti-overflow；The puncture needle 1 of remaining needle
Through anti-overflow plug, the pin hole 14d of puncture needle 1 and soft rubber stopper 14 cooperates, and the inner wall of pin hole 14d wraps puncture needle 1, avoids blood
Liquid stream goes out；In the case that anti-overflow plug experiences minimum resistance when guaranteeing medical staff's withdraw of the needle, moreover it is possible to ensure the side on puncture needle 1
Opening will not leak blood during the withdraw of the needle.
First annular lug boss 3a is tapered, and the big low side in top of first annular lug boss 3a is small, convenient for assembly.
Soft rubber stopper top 14a refers to the biggish part of outer diameter, and close to the needle point of puncture needle 1, soft rubber stopper lower part 14b refers to outer
The lesser part of diameter, close to the backshank of puncture needle 1.
Tapered transitional pore 151 is equipped between the first hole 150 and the second hole 152, transitional pore 151 is close to the first hole
150 one end is big, and soft rubber stopper 14 and transitional pore 151 are interference fitted, and transitional pore 151 plays a transition role, and is easily installed soft rubber stopper 14,
The length that the length of soft rubber stopper lower part 14b is denoted as f, soft rubber stopper lower part 14b and mounting hole 15b interference fit is denoted as g, the range of g
For 0.2f -0.35f, fixing seat 15 is larger to the extruding force of this interference fit, increases soft rubber stopper 14 to the package of puncture needle 1
Power guarantees that soft rubber stopper 14 to the package power of puncture needle 1, avoids blood from flowing out.
As shown in Figure 14 and Figure 15, mounting hole 15b is cylindrical hole, soft rubber stopper lower part 14b and 15 transition fit of fixing seat.
As shown in Figure 16 and Figure 17, mounting hole 15b is cylindrical hole, and soft rubber stopper lower part 14b and fixing seat 15 are interference fitted.
As shown in Fig. 9, Figure 18 and Figure 19, mounting hole 15b is cylindrical hole, is equipped with the second convex annular in soft rubber stopper lower part 14b
Playing portion 14c, the second annular relief 14c and mounting hole 15b interference fit, increase soft rubber stopper 14 is to the package power of puncture needle 1, and the
For second ring lug boss 14c close to the bottom end of soft rubber stopper 14, the length of soft rubber stopper lower part 14b is denoted as f, the second annular relief 14c
Length be denoted as h, the range of h is 0.2f-0.35f.
The bottom of second annular relief 14c is concordant with the bottom of soft rubber stopper 14, at the both ends of the second annular relief 14c
Rounded corner is easily installed.
Pin hole 14d extends to soft rubber stopper top 14a, and the length of soft rubber stopper top 14a is denoted as i, and pin hole 14d is on soft rubber stopper
The length of portion 14a is denoted as j, and the range of j is 0.2i -0.35i, and pin hole 14d wall is fitted closely with puncture needle 1, avoids blood stream
Out, but the anti-overflow plug of opposite reduction operates the package power of puncture needle 1 convenient for medical staff.
For above-mentioned anti-overflow plug when the needle point for guaranteeing puncture needle 1 is retracted into anti-overflow plug, the side opening on puncture needle 1 is also in anti-overflow
In the case where in plug, anti-overflow plug is reduced to the package power of puncture needle 1, is operated convenient for medical staff, when in use, anti-overflow plug is pacified
In fixing seat 15, then anti-overflow plug is mounted in the flexible tube base 3 of remaining needle, make the annular convex platform 15a of fixing seat 15 with
First annular lug boss 3a in flexible tube base 3 is fitted close, and completes assembly.
Indwelling tube 2 is fixedly arranged at the front end in flexible tube base 3, and puncture needle 1 is through indwelling tube 2 and exposed outside indwelling tube 2, soft
The side of tube socket 3 is connected to perfusion tube 11, and flow-stopping clip 12 is equipped on perfusion tube 11, is connected with threeway in the end of perfusion tube 11
13, equipped with no mushroom cap on a connector of threeway 13, this is the prior art, and details are not described herein.
The cushion film 4 for pressure sore prevention is equipped on flexible tube base 3, cushion film 4 is long in patient body-surface for reducing remaining needle
The time fixed probability for forming pressure sore, cushion film 4 is made of softwood matter, such as silica gel, cushion film 4 and flexible tube base 3 can integrally at
Type such as can also be bonded, be clamped at the fixed forms.
Several through-holes 5 are equipped on cushion film 4, through-hole 5 is equipped with several for breathing freely, in the bottom of cushion film 4
Every the groove 4a of setting.
The position that fixation is contacted with body surface of flexible tube base 3 is arranged in cushion film 4, and the width of cushion film 4 is greater than hose
The diameter of seat 3 increases contact area, reduces pressure, avoids being partially formed pressure sore, center line pair of the cushion film 4 about flexible tube base 3
Claim setting, i.e., the center line of cushion film 4 is overlapped with the center line of flexible tube base 3.
When in use, the novel and multifunctional remaining needle is operated with by specification, i.e. bundle tourniquet, removal shield needle cap, a left side
Right loosening puncture needle 1, pinpoint inclined plane upward with 15 to 30 degree straight thrust veins, see after blood back reduce angle to 5 to 10 degree, continue into
2 millimeters of needle, 12 millimeters to 3 millimeters of puncture needle of recession exit opening by observation instruction boss 7, indicate when dropping back needle
Puncture needle 1 retreats in place, hold needle stand conduit and puncture needle 1 are all sent into together blood vessels, unclamp tourniquet open governor, will
Puncture needle 1 is withdrawn from completely, when extracting puncture needle 1, is hold outer tube 8, is moved backward outer tube 8 along 18 wall of middle sleeve,
When wild card tube top is tightly in middle positive stop lug boss 18b, continue to move backward outer tube 8, outer tube 8 drives middle sleeve 18 to move back
It is dynamic, when the middle snap ring 18a of middle sleeve 18 is held out against in interior positive stop lug boss 6b, continue to move backward outer tube 8, outer tube 8 drives
Middle sleeve 18 moves backward, and middle sleeve 18 drives inner sleeve 6 to move backward, and inner sleeve 6 divides with flexible tube base 3 under a stretching force
From puncture needle 1 is wrapped in inner sleeve 6, middle sleeve 18 and outer tube 8, is avoided puncture needle 1 from stabbing medical staff, is made cushion
The skin contact of piece 4 and patient finally fixes remaining needle.
The front end or top of heretofore described part or front refer to one end of the close puncture needle needle point of part,
The rear end or bottom end of part or bottom refer to one end away from puncture needle needle point of part；" first ", " in the present invention
Two " etc. do not have concrete meaning, are only to facilitate description and understanding.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of anti-needle pierces protective device, it is characterised in that: including anti-acupuncture group part, anti-acupuncture group part includes inner sleeve, inside
Being arranged on casing can be along the outer tube that inner sleeve moves.
2. anti-needle as described in claim 1 pierces protective device, it is characterised in that: be equipped with middle set between inner sleeve and outer tube
Pipe, inner sleeve are connected with outer tube by middle sleeve, and outer tube can be moved along middle sleeve, and middle sleeve can be moved along inner sleeve
It is dynamic.
3. anti-needle as claimed in claim 2 pierces protective device, it is characterised in that: it is equipped with middle positive stop lug boss in middle sleeve bottom end,
It is equipped with middle snap ring on middle sleeve top, the outer snap ring matched with middle positive stop lug boss is equipped on the top of outer tube, in inner sleeve
Bottom end is equipped with the interior positive stop lug boss matched with middle snap ring, and in the middle when the bottom end of sleeve movement to inner sleeve, middle snap ring is held out against
The end face of interior positive stop lug boss, when outer tube moves to the bottom end of middle sleeve, outer snap ring is held out against in the end face of middle positive stop lug boss.
4. anti-needle as described in claim 1 pierces protective device, it is characterised in that: be equipped at least one baffle, gear in inner sleeve
Piece and inner sleeve clearance fit, puncture needle through baffle and with baffle clearance fit.
5. anti-needle as claimed in claim 4 pierces protective device, it is characterised in that: be equipped in inner sleeve for anti-stop tab to
The mobile block in inner sleeve bottom end.
6. the anti-needle as described in any one of claim 1 pierces protective device, it is characterised in that: fixed in the bottom end of outer tube
It is connected with transparent end cap, is equipped with opening in the bottom end of end cap, is fixed with made of gas-permeable, liquid-impermeable material thoroughly in opening
Air film.
7. anti-needle as described in claim 1 pierces protective device, it is characterised in that: be equipped with symmetrical manipulator on outer tube
Handle is equipped with several raised ribs on the operating surface of operation handle.
8. anti-needle as claimed in claim 7 pierces protective device, it is characterised in that: handle is inverted u-shaped, the bottom end of operation handle with
Outer tube is fixedly connected.
9. a kind of remaining needle using the thorn protective device of anti-needle described in claim 1-8, including flexible tube base and puncture needle, special
Sign is: the bottom end of flexible tube base, the bottom end connection of inner sleeve and flexible tube base is arranged in anti-acupuncture group part, and puncture needle is arranged outside
In casing, the bottom of puncture needle is fixedly connected with outer tube.
10. remaining needle as claimed in claim 9, it is characterised in that: inner sleeve is coated at or is embedded in the bottom end of flexible tube base,
Annular groove and several first lug bosses, circumferential uniform intervals point of first lug boss along flexible tube base are successively arranged on flexible tube base
Cloth is equipped with the second lug boss matched with annular groove in the end of inner sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496154.7A CN110075388B (en) | 2019-06-10 | 2019-06-10 | Needle-punching prevention protection device and indwelling needle using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496154.7A CN110075388B (en) | 2019-06-10 | 2019-06-10 | Needle-punching prevention protection device and indwelling needle using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110075388A true CN110075388A (en) | 2019-08-02 |
| CN110075388B CN110075388B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910496154.7A Active CN110075388B (en) | 2019-06-10 | 2019-06-10 | Needle-punching prevention protection device and indwelling needle using same |
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| Country | Link |
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| CN (1) | CN110075388B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585520A (en) * | 2019-09-27 | 2019-12-20 | 苏州林华医疗器械股份有限公司 | Negative pressure type visible blood return retaining needle for jugular vein |
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| CN102641529A (en) * | 2012-05-08 | 2012-08-22 | 江苏苏云医疗器材有限公司 | Indwelling needle |
| CN202605430U (en) * | 2012-05-08 | 2012-12-19 | 江苏苏云医疗器材有限公司 | Retention needle |
| CN109646761A (en) * | 2018-12-29 | 2019-04-19 | 顶医疗科技（昆山）有限公司 | A kind of anti-venous indwelling needle |
| CN211068437U (en) * | 2019-06-10 | 2020-07-24 | 河南驼人医疗器械集团有限公司 | Anti-needling protection device and indwelling needle using same |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641529A (en) * | 2012-05-08 | 2012-08-22 | 江苏苏云医疗器材有限公司 | Indwelling needle |
| CN202605430U (en) * | 2012-05-08 | 2012-12-19 | 江苏苏云医疗器材有限公司 | Retention needle |
| CN109646761A (en) * | 2018-12-29 | 2019-04-19 | 顶医疗科技（昆山）有限公司 | A kind of anti-venous indwelling needle |
| CN211068437U (en) * | 2019-06-10 | 2020-07-24 | 河南驼人医疗器械集团有限公司 | Anti-needling protection device and indwelling needle using same |
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| CN110585520A (en) * | 2019-09-27 | 2019-12-20 | 苏州林华医疗器械股份有限公司 | Negative pressure type visible blood return retaining needle for jugular vein |
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| Publication number | Publication date |
|---|---|
| CN110075388B (en) | 2024-06-14 |
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