CN105816936B - Anti-acupuncture double-wing vein puncture needle - Google Patents
Anti-acupuncture double-wing vein puncture needle Download PDFInfo
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- CN105816936B CN105816936B CN201510005473.5A CN201510005473A CN105816936B CN 105816936 B CN105816936 B CN 105816936B CN 201510005473 A CN201510005473 A CN 201510005473A CN 105816936 B CN105816936 B CN 105816936B
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Abstract
The invention discloses an anti-acupuncture double-wing intravenous puncture needle, which comprises a needle seat, a needle sleeve, a hose and a needle head, wherein the needle sleeve is sleeved on the needle head, the hose is communicated with the needle seat, the anti-acupuncture double-wing intravenous puncture needle also comprises a handle, a sliding piece and a limiting mechanism, the needle seat is cylindrical, one end of the needle seat is fixed and communicated with the needle head, and the other end of the needle seat is connected with the hose; the sliding piece is in a cylinder shape with two open ends, a plurality of sliding pieces are mutually nested, and the sliding piece positioned at the innermost layer is movably sleeved on the needle base; the limiting mechanism is arranged on the plurality of sliders and the needle seat, and the plurality of sliders are mutually fixed; the handles are symmetrically arranged on two sides of the needle base and fixed at the joint of the needle base and the hose; the handle is in the shape of a flat plate. The anti-acupuncture double-wing intravenous puncture needle has the advantages that the needle-punching double-wing intravenous puncture needle is shorter in operation part length by arranging the sliding pieces to be sleeved on the needle base layer by layer, the needle head is shielded by the sliding pieces layer by layer in use and after use, the safety is improved, and the pain of a patient is relieved.
Description
Technical Field
The invention relates to a vein puncture needle, in particular to a puncture-proof double-wing vein puncture needle.
Background
Currently, before a disposable intravenous needle is used, a needle is sleeved with a needle sleeve to protect the needle, for example, to prevent the needle from being bent or collided. When the infusion set is used, the puncture danger is easily caused when the needle sleeve is pulled out, but the real danger is in the treatment stage after the infusion is finished, after the needle sleeve is pulled out from the body of a person to be infused, when the infusion set is discarded, the needle sleeve is easily punctured, and serious consequences such as infection of medical staff are caused.
In order to overcome the defect, some intravenous needles adopt a telescopic needle head technical means, and after infusion is completed, the needle head is retracted into a protective sleeve and other structures for protecting the needle head by using the elasticity of the spring and other structures. Thus, although the needle can be effectively protected and the medical staff can be prevented from being punctured, the patient suffers from great pain due to the mechanical action of retracting the needle.
On the other hand, when the retractable needle is retracted, the retractable mechanical structure is prone to have a gap, and the skin of the patient can be clamped, so that the patient can suffer more pain.
Disclosure of Invention
The invention aims to overcome the defects that the intravenous needle in the prior art has safety problems and the mechanical action causes the pain of a patient, and provides the anti-puncturing double-wing intravenous puncture needle which has better safety and lower pain caused by the mechanical action.
The invention solves the technical problems through the following technical scheme:
a puncture-proof double-wing intravenous puncture needle comprises a needle seat, a needle sleeve, a hose and a needle head, wherein the needle sleeve is sleeved on the needle head, the hose is communicated with the needle seat, the puncture-proof double-wing intravenous puncture needle is characterized by further comprising two handles, a plurality of sliding pieces and a plurality of limiting mechanisms, the needle seat is cylindrical, one end of the needle seat is fixed and communicated with the needle head, and the other end of the needle seat is connected with the hose;
the sliders are cylindrical with openings at two ends, the sliders are mutually nested, the sliders positioned at the innermost layer are movably sleeved on the needle seat, and the total length of the sliders in the moving direction is greater than that of the needle head;
the limiting mechanism is arranged on the plurality of sliders and the needle seat and is used for fixing the slider at the innermost layer on the needle seat after the plurality of sliders are unfolded in a sliding manner to completely shield the needle head, and the plurality of sliders are mutually fixed;
the handles are symmetrically arranged on two sides of the needle base and fixed at the joint of the needle base and the hose;
the handle is in the shape of a flat plate, the handle being parallel to the skin contact surface of the slider.
Here, the flexible tube is a flexible tube commonly used in the art for blood transfusion and infusion, etc. That is to say, before using, the needle file is located to the overlapping cover of a plurality of sliders, is in the state of withdrawing, and the syringe needle exposes outside this moment, can cover the syringe needle through the needle cover and shield the syringe needle. During the use, take off the needle cover, carry out operations such as blood transfusion, after the operation is accomplished, the in-process of extracting the syringe needle, with the slider of a plurality of cylindric after the slip expandes, through setting up the fixed of the stop gear end to end on slider and needle file, shield the syringe needle simultaneously in order to avoid the injury of syringe needle to operator or patient. Therefore, the safety is ensured when the needle head is pulled out, and the pain caused by the sudden rebound of the needle head in the prior art is avoided.
In addition, since the length of the intravenous needle operation site (i.e. the length of the needle holder and other components except the hose portion) should be at least the length of the needle holder plus the needle, and the length of the needle is generally not changeable with a standard length, the length design of the needle holder becomes a key for determining the length of the intravenous needle operation site. In the invention, because a structure that a plurality of sliders are stacked and sleeved is adopted, when the needle is in a retraction state (namely when the needle is completely exposed), compared with the structure that only one slider is adopted, the structure that a plurality of sliders are stacked and sleeved can obviously reduce the design length of the needle base.
In addition, the arrangement of the handle parallel to the skin contact surface of the slider can reduce the turnover caused by shaking of a manual operator in the operation process, and during operation, the operator can hold the handle on one side by one hand and can cling to the skin of the other side, so that a positioning effect is realized.
Preferably, the anti-needle-prick double-wing intravenous puncture needle comprises a first sliding piece and a second sliding piece, the first sliding piece is movably sleeved outside the needle base, and the second sliding piece is movably sleeved outside the first sliding piece.
Preferably, the limiting mechanism comprises a first elastic washer, two second elastic washers and two third elastic washers;
the first elastic washer is attached to the inner periphery of one end, close to the hose, of the first sliding piece, and the edge of the first elastic washer is smoothly attached to the inner wall of the first sliding piece;
the two second elastic gaskets are sleeved and attached to the needle base, and the second elastic gaskets are used for being clamped with the first elastic gaskets when the first sliding piece and the second sliding piece slide and extend to completely shield the needle head or the needle head is completely exposed so as to limit the movement of the first sliding piece;
the third elastic washer is respectively arranged on the outer periphery of one end of the first slider far away from the hose and the inner periphery of the second slider close to the hose, and the third elastic washer is used for being mutually clamped to limit the movement of the second slider when the first slider and the second slider are slidably extended to completely shield the needle or the needle is completely exposed.
Preferably, the limiting mechanism comprises two elastic fasteners and four clamping grooves;
the needle holder is provided with a needle seat, the needle seat is provided with a needle head, the needle head is provided with a needle seat, the needle head is provided with a needle head, the needle head is provided with a first slider, the needle head is provided with a second slider, the needle head is provided with a needle head, the needle head is provided with a first slider and a second slider, the needle head is provided with a needle head, the needle head is provided with a second slider, the needle head is provided with a needle head, and the needle head is provided with a needle head, the needle head is provided with a needle head, and the needle head is provided with the first slider, and the needle head is provided with the needle head, and the needle head is provided with the needle head, and is provided with the needle head, and is provided with the needle head, and is completely exposed, and is provided with the needle head, and is provided with the needle head, and is provided with the needle.
Preferably, the first slider is further provided with an elastic latch for ejecting when the first slider and the second slider slide to completely shield the needle to prevent the second slider from backing up in the direction of the hose.
Here, since the first slider and the second slider need to be deployed to ensure that the shielding needle is not exposed, the stability of their mutual engagement is directly related to the safety of the intravenous needle in use. Therefore, the elastic clamping piece which is outwards popped out is arranged on the periphery of the first slider, the elastic clamping piece is outwards popped out after the second slider is unfolded to a preset position along the first slider, and if the second slider slides backwards, the elastic clamping piece can abut against the edge and other parts of the second slider, so that the second slider cannot slide backwards.
Preferably, the second slider is provided with a smooth protrusion around an end adjacent to the hose. The protrusion is used for preventing skin from being stuck in a gap between the first slider and the second slider when the needle is inserted into a human body.
Here, since the sliders and the needle seats are slidably nested, gaps are inevitably formed between the sliders and the needle seats. These gaps tend to pinch the patient's skin during the procedure, causing pain to the patient. After the protruding part is arranged, the protruding part can be abutted against the skin of a patient in operation, so that the skin is slightly sunken, and the skin around the contact part of the protruding part can be prevented from contacting with the combination part of the first sliding piece, the second sliding piece and the needle seat with gaps, so that the skin is not easily clamped by the gaps.
Preferably, a smooth surface is arranged on the side edge of the second slide piece, and an included angle of 5-20 degrees is formed between the smooth surface and the axial lead of the needle head.
Preferably, a notch is formed in one side of the smooth surface of the second sliding piece, and the plane where the notch is located is parallel to the axial lead of the needle head;
one end of the gap extends to the opening of the second slip piece far away from the hose, and the other end of the gap extends until the gap is intersected with the smooth surface.
Here, the needle needs to be kept close to the skin of the patient as much as possible during the unfolding of the first and second sliders, and thus, if the diameters of the first and second sliders are too large, the requirement cannot be satisfied. Therefore, the smooth surface is arranged on the second slide piece, so that the needle can be close to the skin when the first slide piece and the second slide piece are unfolded. The smooth surface extends to a position close to the axial lead of the needle head and is provided with the notch, so that the requirement that the needle head is close to the skin can be further met, and the pain of a patient is reduced. Meanwhile, in order to prevent the needle from accidentally injuring the operator when or after the operation is completed, the distance between the needle and the notch cannot be too close.
Preferably, the distance between the notch and the axial lead of the needle head is a set distance.
Preferably, the second slider is provided with at least one anti-slip region;
the slider is made of elastic materials, the slider and the elastic fastener are integrally formed, and the needle seat and the clamping groove are integrally formed;
the limiting mechanism further comprises at least one blocking and connecting part arranged on the first sliding piece or the needle seat, and the blocking and connecting part is used for preventing the first sliding piece and the second sliding piece from being separated out under the action of tensile force after the clamping groove is clamped with the elastic fastener.
The stopper may be any stopper structure, for example, the needle seat and the outer wall of the end of the first slider near the needle are provided with an annular retainer ring, the end of the first slider and the end of the second slider near the hose are provided with two protrusions on the inner side wall, and the first slider and the second slider are clamped on the annular retainer ring through the two protrusions on the inner side wall of the first slider and the inner side wall of the second slider after being stretched.
The positive progress effects of the invention are as follows: the anti-acupuncture double-wing intravenous puncture needle has the advantages that the needle-punching double-wing intravenous puncture needle is shorter in operation part length by arranging the sliding pieces to be sleeved on the needle base layer by layer, the needle head is shielded by the sliding pieces layer by layer in use and after use, the safety is improved, and the pain of a patient is relieved.
Drawings
Fig. 1 is a plan view of a preferred embodiment of the needle-stick resistant double-winged intravenous needle of the present invention shown in the deployed position.
Fig. 2 is a plan view of a puncture resistant double-winged venipuncture needle of a preferred embodiment of the present invention when retracted.
Fig. 3 is a cross-sectional view taken along a-a of fig. 1.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Fig. 1 is a plan view of the puncture-proof double-wing intravenous puncture needle of the present embodiment when deployed, fig. 2 is a plan view of the puncture-proof double-wing intravenous puncture needle of the present embodiment when retracted, fig. 3 is a cross-sectional view taken along a-a in fig. 1, as shown in fig. 1 to 3, the puncture-proof double-wing intravenous puncture needle of the present embodiment includes a needle holder 3, a needle sleeve, a flexible tube 6 and a needle head 4, the needle sleeve is sleeved on the needle head 4, the flexible tube 6 is communicated with the needle holder 3, the needle holder 3 is cylindrical, one end of the needle holder 3 is fixed and communicated with the needle head 4, and the other end is connected with the flexible tube 6.
The anti-acupuncture double-wing intravenous puncture needle related to the embodiment also comprises two handles 5, a sliding piece 1 and a sliding piece 2, wherein the sliding piece 1 is movably sleeved outside the needle base 3, and the sliding piece 2 is movably sleeved outside the sliding piece 1.
The handles 5 are symmetrically arranged on two sides of the needle base and fixed at the connecting part of the needle base 3 and the hose 6, the handles 5 are flat, and the handles 5 are parallel to the skin contact surface of the sliding piece 2. The handle 5 is also provided with a plurality of convex points for skid resistance.
The slider 1 and the slider 2 are nested with each other and have two open ends, the slider 1 at the innermost layer is movably sleeved on the needle seat 3, and the total length of the slider 1 and the slider 2 in the moving direction is larger than that of the needle 4.
The elastic fastener 13, the elastic fastener 21, the clamping groove 31, the clamping groove 32, the clamping groove 11 and the clamping groove 12 are arranged on the needle seat 3, the sliding part 1 and the sliding part 2 as limiting mechanisms and used for clamping and fixing the sliding part 1, the sliding part 2 and the needle seat 3 when the sliding part 1 and the sliding part 2 are unfolded or retracted.
The locking groove 31 and the locking groove 32 are arranged on the needle seat 3, the elastic fastener 13 is arranged on the slider 1, the locking groove 11 and the locking groove 12 are arranged on the periphery of the slider 1, the elastic fastener 21 is arranged on the slider 2, and the elastic fastener 13, the elastic fastener 21, the locking groove 31, the locking groove 32, the locking groove 11 and the locking groove 12 are buckled with each other when the slider 1 and the slider 2 slide to completely shield the needle 4 or the needle 4 is completely exposed so as to limit the movement of the slider 1 and the slider 2.
The slider 2 is provided with a smooth protrusion 22 at one end of the ring near the hose 6, and the protrusion 22 is used for preventing skin from being stuck in the gap between the slider 1 and the slider 2 when the needle 4 is inserted into a human body.
Because the sliding parts 1, the sliding parts 2 and the needle seats 3 are sleeved in a sliding mode, gaps are necessarily reserved between the sliding parts 1 and the sliding parts 2 and between the sliding parts 1 and the needle seats 3. These gaps tend to pinch the patient's skin during the procedure, causing pain to the patient. With the protrusion 22, the protrusion 22 will interfere with the skin of the patient during operation, so that the skin is slightly depressed, and thus the skin around the contact portion with the protrusion 22 can avoid contact with the combination of the slider 1, the slider 2 and the needle holder with the gap, so that the skin is not easily clamped by the gap.
The side edge of the slider 2 is provided with a smooth surface 23, and an included angle of 5 degrees is formed between the smooth surface 23 and the axial lead of the needle 4. The slider 2 is provided with a notch at one side of the smooth surface 23, and the plane of the notch is parallel to the axial lead of the needle 4. One end of the gap extends to the opening of the slider 2 remote from the hose 6 and the other end extends until it meets the smooth surface 23. The distance between the notch and the axial lead of the needle head 4 is 0.5 mm.
The slider 2 is provided with a non-slip region. The slider 1 and the slider 2 are made of an elastic material, and the slider 1 and the slider 2 are integrally formed with the elastic fastener, and the needle holder 3 is integrally formed with the catching groove 32.
Before use, the slider 1 and the slider 2 are sleeved outside the needle seat in a stacking mode and are in a retraction state, the needle 4 is exposed outside at the moment, and the needle 4 can be sleeved by the needle sleeve to shield the needle. When the needle set is used, the needle set is taken down for operations such as blood transfusion, and after the operations are finished, in the process of pulling out the needle 4, the cylindrical sliding piece 1 and the cylindrical sliding piece 2 are fixed end to end through the limiting mechanisms (the elastic clamping piece, the elastic fastening piece and the like) arranged on the sliding piece 1, the sliding piece 2 and the needle seat after being unfolded in a sliding way, and the needle 4 is shielded to avoid the injury of the needle to an operator or a patient. Therefore, the safety is ensured when the needle head is pulled out, and the pain caused by the sudden rebound of the needle head in the prior art is avoided.
In addition, the needle 4 needs to be kept close to the skin of the patient as much as possible during the unfolding of the sliders 1 and 2, and therefore, if the diameters of the sliders 1 and 2 are too large, the requirements cannot be met. Therefore, the smooth surface 23 is arranged on the sliding part 2, so that the sliding part 1 and the sliding part 2 can be close to the skin when the needle 4 is unfolded. The smooth surface 23 extends to a position close to the axial lead of the needle head and is provided with a notch, so that the requirement that the needle head is close to the skin can be further met, and the pain of a patient is reduced.
In addition, both the slider 1 and the needle seat are provided with a protrusion and an annular retainer ring structure (not shown in the figure) serving as a blocking part in a surrounding manner, the needle seat and the outer wall of one end of the slider 1, which is close to the needle, are provided with the annular retainer ring, one ends of the slider 1 and the slider 2, which are close to the hose, are provided with two protrusions on the inner side wall, and the protrusions are clamped behind the annular retainer ring through the two protrusions on the inner side wall after stretching, so that the slider 1 and the slider 2 are prevented from being separated out under the action of the stretching force after the clamping groove and the elastic fastener are clamped.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and spirit of the present invention, for example, instead of using a snap structure such as an elastic fastener and a snap groove, a sliding member may be fastened to a needle seat by using an elastic washer to engage with each other, etc., but these changes and modifications are within the scope of the present invention.
Claims (8)
1. A puncture-proof double-wing intravenous puncture needle comprises a needle seat, a needle sleeve, a hose and a needle head, wherein the needle sleeve is sleeved on the needle head, the hose is communicated with the needle seat, the puncture-proof double-wing intravenous puncture needle is characterized by further comprising two handles, a plurality of sliding pieces and a plurality of limiting mechanisms, the needle seat is cylindrical, one end of the needle seat is fixed and communicated with the needle head, and the other end of the needle seat is connected with the hose;
the sliders are cylindrical with openings at two ends, the sliders are mutually nested, the sliders positioned at the innermost layer are movably sleeved on the needle seat, and the total length of the sliders in the moving direction is greater than that of the needle head;
the limiting mechanism is arranged on the plurality of sliders and the needle seat and is used for fixing the slider at the innermost layer on the needle seat after the plurality of sliders are unfolded in a sliding manner to completely shield the needle head, and the plurality of sliders are mutually fixed;
the handles are symmetrically arranged on two sides of the needle base and fixed at the joint of the needle base and the hose;
the handle is in a flat plate shape and is parallel to the skin contact surface of the slider;
the sliding pieces comprise a first sliding piece and a second sliding piece, the first sliding piece is movably sleeved outside the needle seat, and the second sliding piece is movably sleeved outside the first sliding piece; the second slider is provided with a smooth protrusion around an end adjacent to the hose.
2. The needle-prick prevention double-winged venipuncture needle as claimed in claim 1, wherein said limiting mechanism includes a first elastic washer, two second elastic washers and two third elastic washers;
the first elastic washer is attached to the inner periphery of one end, close to the hose, of the first sliding piece, and the edge of the first elastic washer is smoothly attached to the inner wall of the first sliding piece;
the two second elastic gaskets are sleeved and attached to the needle base, and the second elastic gaskets are used for being clamped with the first elastic gaskets when the first sliding piece and the second sliding piece slide and extend to completely shield the needle head or the needle head is completely exposed so as to limit the movement of the first sliding piece;
the third elastic washer is respectively arranged on the outer periphery of one end of the first slider far away from the hose and the inner periphery of the second slider close to the hose, and the third elastic washer is used for being mutually clamped to limit the movement of the second slider when the first slider and the second slider are slidably extended to completely shield the needle or the needle is completely exposed.
3. The needle-prick prevention double-winged venipuncture needle as claimed in claim 1, wherein said limiting mechanism comprises two elastic fasteners and four catching grooves;
the needle holder is provided with a needle seat, the needle seat is provided with a needle head, the needle head is provided with a needle seat, the needle head is provided with a needle head, the needle head is provided with a first slider, the needle head is provided with a second slider, the needle head is provided with a needle head, the needle head is provided with a first slider and a second slider, the needle head is provided with a needle head, the needle head is provided with a second slider, the needle head is provided with a needle head, and the needle head is provided with a needle head, the needle head is provided with a needle head, and the needle head is provided with the first slider, and the needle head is provided with the needle head, and the needle head is provided with the needle head, and is provided with the needle head, and is provided with the needle head, and is completely exposed, and is provided with the needle head, and is provided with the needle head, and is provided with the needle.
4. A puncture resistant double-winged venipuncture needle as claimed in claim 3, wherein said first slider is further provided with a resilient latch for ejecting when said first slider and said second slider slide to completely shield said needle to prevent said second slider from backing up in the direction of said hose.
5. A puncture resistant double-winged venipuncture needle as claimed in claim 3, wherein said second slider has a smooth surface on its side, said smooth surface having an angle of 5 ° to 20 ° with the axial center line of said needle.
6. The needle stick prevention double-winged venipuncture needle as claimed in claim 5, wherein said second slider is provided with a notch at one side of said flat surface, said notch being located in a plane parallel to the axial center line of said needle head;
one end of the gap extends to the opening of the second slip piece far away from the hose, and the other end of the gap extends until the gap is intersected with the smooth surface.
7. The needle stick prevention double-winged venipuncture needle of claim 6 wherein said notch is a set distance from the axial center line of said needle.
8. A puncture resistant double-winged venipuncture needle as claimed in claim 6, wherein said second slider is provided with at least one anti-slip region;
the slider is made of elastic materials, the slider and the elastic fastener are integrally formed, and the needle seat and the clamping groove are integrally formed;
the limiting mechanism further comprises at least one blocking and connecting part arranged on the first sliding piece or the needle seat, and the blocking and connecting part is used for preventing the first sliding piece and the second sliding piece from being separated out under the action of tensile force after the clamping groove is clamped with the elastic fastener.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005473.5A CN105816936B (en) | 2015-01-04 | 2015-01-04 | Anti-acupuncture double-wing vein puncture needle |
| PCT/CN2015/077744 WO2016107028A1 (en) | 2015-01-04 | 2015-04-29 | Anti-needlestick two-wing venipuncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005473.5A CN105816936B (en) | 2015-01-04 | 2015-01-04 | Anti-acupuncture double-wing vein puncture needle |
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| Publication Number | Publication Date |
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| CN105816936A CN105816936A (en) | 2016-08-03 |
| CN105816936B true CN105816936B (en) | 2022-04-12 |
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| CN201510005473.5A Active CN105816936B (en) | 2015-01-04 | 2015-01-04 | Anti-acupuncture double-wing vein puncture needle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018032625A1 (en) * | 2016-08-16 | 2018-02-22 | 上海金塔医用器材有限公司 | Needle-proof structure and needle-proof intravenous infusion puncture needle |
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| US20030163095A1 (en) * | 2002-02-28 | 2003-08-28 | Noboru Nakashima | Safety indwelling syringe |
| CN201939855U (en) * | 2010-12-24 | 2011-08-24 | 河南曙光健士医疗器械集团有限公司 | Acupuncture-prevention venous retention needle |
| CN202715086U (en) * | 2012-03-27 | 2013-02-06 | 河南曙光健士医疗器械集团股份有限公司 | Disposable anti-acupuncture intravenous infusion needle |
| CN203280838U (en) * | 2013-02-06 | 2013-11-13 | 张利 | Remaining needle with adhesive tape |
| CN103977475A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Safety vein needle |
| CN204411410U (en) * | 2015-01-04 | 2015-06-24 | 上海金塔医用器材有限公司 | Anti-acupuncture double-vane venipuncture needle |
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2015
- 2015-01-04 CN CN201510005473.5A patent/CN105816936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030163095A1 (en) * | 2002-02-28 | 2003-08-28 | Noboru Nakashima | Safety indwelling syringe |
| CN201939855U (en) * | 2010-12-24 | 2011-08-24 | 河南曙光健士医疗器械集团有限公司 | Acupuncture-prevention venous retention needle |
| CN202715086U (en) * | 2012-03-27 | 2013-02-06 | 河南曙光健士医疗器械集团股份有限公司 | Disposable anti-acupuncture intravenous infusion needle |
| CN203280838U (en) * | 2013-02-06 | 2013-11-13 | 张利 | Remaining needle with adhesive tape |
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| CN105816936A (en) | 2016-08-03 |
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