CN103007385A - Secure type indwelling and shielding cap - Google Patents
Secure type indwelling and shielding cap Download PDFInfo
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- CN103007385A CN103007385A CN2013100031039A CN201310003103A CN103007385A CN 103007385 A CN103007385 A CN 103007385A CN 2013100031039 A CN2013100031039 A CN 2013100031039A CN 201310003103 A CN201310003103 A CN 201310003103A CN 103007385 A CN103007385 A CN 103007385A
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Abstract
The embodiment of the invention discloses a secure type indwelling needle and a shielding cap and is used for prevent a medical personnel from being punctured by a puncture needle. The secure type indwelling needle provided by the embodiment comprises an indwelling catheter component 1, a puncture needle component 2 and a shielding cap 3; after the puncture needle component 2 is pulled out, the puncture needle component 2 is accommodated inside the shielding cap 3; and when the puncture needle component 2 exits from a front end limitation device 31, the front end limitation device 31 deviates from an original position and slides towards a lower part under the action of gravity so as to stop an extending channel 33 and prevent a puncture needle 21 from reversely passing. A back end limitation position 32 can prevent the puncture needle component 2 from leaving the shielding cap 3; thus, the puncture needle component 2 and the indwelling catheter component 1 are separated, and the puncture needle component 2 is safely discarded, so that the medical personnel is prevented from being punctured by a puncture needle; because the volume of the shielding cap 3 is smaller than that of a complete protection housing in the prior art, the secure type indwelling needle is more conveniently used by the medical personnel.
Description
Technical field
The present invention relates to the disposable medical instrument field, relate in particular to a kind of safe type retention needle and shielding cap.
Background technology
Remaining needle is a kind of medical apparatus and instruments for repeatedly carrying out within a certain period of time infusion treatment, generally comprises puncture needle and the inlying catheter that is enclosed within above the puncture needle.Because inlying catheter is soft and flexible, when catheter retaining was in blood vessel, conduit can along with the blood vessel synchronous zigzag, so that the position of catheter retaining still can freely be moved, not have the danger of puncture vein.Therefore, relatively common scalp acupuncture uses retention needle infusion to have more safety, and the sense of discomfort when reducing the patient and infusing.
After the use of remaining needle has also brought retained needle puncture simultaneously, the danger of stabbing medical personnel that the needle point that comes out can meet accident, in this case, just so that medical personnel are easy to be subject to the infection of the pathogen of the various danger that blood carries.The danger that medical personnel can be subject to unexpected acupuncture has impelled the exploitation of safe type retention needle, and the use of this safe type retention needle can prevent described accidental acupuncture.
But safe type retention needle of the prior art has shortcoming more or less, thereby has limited their serviceability, can not be approved fully by medical personnel.For example application number is to disclose a kind of retained needle puncture needle tip shielding device in 03814386.0 the Chinese invention patent, and this device only can shield needle point, can not shield the side opening of water conservancy diversion blood on the needle tubing, and whole device relative complex.Application number is in 03141566.0 the Chinese invention patent in disclosed a kind of safe type retention needle; with the puncture after the puncture needle components containing in the safeguard protection shell of a tubulose; its safeguard protection valve jacket is on catheter block, and containment vessel length is larger, makes troubles to medical personnel's operation.
Summary of the invention
The embodiment of the invention provides a kind of safe type retention needle and shielding cap, is used for avoiding medical personnel to be threaded a needle and stabs.
A kind of safe type retention needle that the embodiment of the invention provides specifically comprises:
Inlying catheter assembly 1, puncture needle assembly 2 and shielding cap 3;
Front end stopping means 31 is arranged on the cavity inside of housing 35 front ends, can slide up and down in cavity;
Rear end stopping means 32 is fixed on housing 35 rear ends;
Extending passage 33 is between front end stopping means 31 and the rear end stopping means 32;
Front end stopping means 31 and rear end stopping means 32 centers arrange through hole, and through hole aligns with extension passage 33;
When puncture needle assembly 2 withdrawed from front end stopping means 31, front end stopping means 31 was owing to action of gravity, and the lower cavity bottom that slides into is stopped up and extended passage 33;
Rear end stopping means 32 is used for preventing that puncture needle assembly 2 breaks away from shielding cap 3.
Optionally,
Shell fragment 36;
Shell fragment 36 is arranged on a side of front end stopping means 31;
Shell fragment 36 is not in compressive state before triggering;
When puncture needle assembly 2 withdrawed from front end stopping means 31, shell fragment 36 was opened, and forced the front end stopping means to slide to the cavity bottom, blocked and extended passage 33.
Optionally,
The first Magnetitum 37 and the second Magnetitum 38;
The first Magnetitum 37 is fixed on the housing 35 of front end stopping means 31 1 sides;
The second Magnetitum 38 and the first Magnetitum 37 are symmetrical arranged, and are fixed on the front end stopping means 31;
When puncture needle assembly 2 withdrawed from front end stopping means 31, the second Magnetitum 38 was subject to the gravitation of the first Magnetitum 37, forced front end stopping means 31 to slide to the first Magnetitum 37, stopped up and extended passage 33.
Optionally,
Inlying catheter assembly 1 comprises:
One end jointing 16 of extension tube 14, the other end and 123 sockets of the 3rd interface;
Optionally,
The afterbody of puncture needle 21 is fixed on the Paracentesis needle holder 22;
The front end of shielding cap 3 is plugged on the first interface 121, and puncture needle 21 passes front end stopping means 31, rear end stopping means 32 and extends passage 33.
Optionally,
The front end of shielding cap 3 is provided with the buckle 34 that matches with snap ring 124;
Optionally,
At least one projection 211 is set above the puncture needle 21;
Front end stopping means 31 and extension passage 33 can guarantee that whole puncture needle 21 passes through;
Front end stopping means 31 is after puncture needle passes through, and depart from the position, blocks and extends passage 33, stops puncture needle 21 to return.
The present invention is that strength also provides a kind of shielding cap specifically to comprise:
Front end stopping means 31 is arranged on the cavity inside of housing 35 front ends, can slide up and down in cavity;
Rear end stopping means 32 is fixed on housing 35 rear ends;
Extending passage 33 is between front end stopping means 31 and the rear end stopping means 32;
Front end stopping means 31 and rear end stopping means 32 centers arrange through hole, and through hole aligns with extension passage 33;
Puncture needle assembly 2 runs through the through hole at front end stopping means 31 and rear end stopping means 32 centers;
When puncture needle assembly 2 withdrawed from front end stopping means 31, front end stopping means 31 was owing to action of gravity, and the lower cavity bottom that slides into is stopped up and extended passage 33;
Rear end stopping means 32 is used for preventing that puncture needle assembly 2 breaks away from shielding cap 3.
Shielding cap also comprises:
Shell fragment 36;
Shell fragment 36 is arranged on a side of front end stopping means 31;
Shell fragment 36 is not in compressive state before triggering;
When puncture needle assembly 2 withdrawed from front end stopping means 31, shell fragment 36 was opened, and forced the front end stopping means to slide to the cavity bottom, blocked and extended passage 33.
Optionally,
Shielding cap also comprises:
The first Magnetitum 37 and the second Magnetitum 38;
The first Magnetitum 37 is fixed on the housing 35 of front end stopping means 31 1 sides;
The second Magnetitum 38 and the first Magnetitum 37 are symmetrical arranged, and are fixed on the front end stopping means 31;
When puncture needle assembly 2 withdrawed from front end stopping means 31, the second Magnetitum 38 was subject to the gravitation of the first Magnetitum 37, forced front end stopping means 31 to slide to the first Magnetitum 37, stopped up and extended passage 33.
As can be seen from the above technical solutions; the embodiment of the invention has the following advantages: prior art be with the puncture after the puncture needle components containing in the safeguard protection shell of a tubulose; this safeguard protection valve jacket is on catheter block, because containment vessel length is larger, makes troubles to medical personnel's operation.A kind of safe type retention needle provided by the invention comprises inlying catheter assembly 1, puncture needle assembly 2 and shielding cap 3; Inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 is extracted out, puncture needle assembly 2 is contained in the inside of shielding cap 3, continue to extract out puncture needle assembly 2, puncture needle assembly 2 withdraws from front end stopping means 31, and front end stopping means 31 breaks away from the holding power of puncture needle assembly 2, under action of gravity, slide to the cavity bottom, depart from original position, block and extend passage 33, stop puncture needle 21 oppositely to pass through.Rear end stopping means 32 can prevent that puncture needle assembly 2 breaks away from shielding cap 3.Continue to extract out puncture needle assembly 2; shielding cap 3 breaks away from inlying catheter assembly 1; puncture needle assembly 2 related shielding caps 3 together can be abandoned; thereby avoiding medical personnel to be threaded a needle stabs; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
Description of drawings
The structural representation of an embodiment of a kind of safe type retention needle that Fig. 1 provides for the embodiment of the invention;
The structural representation of another embodiment of a kind of safe type retention needle that Fig. 2 provides for the embodiment of the invention;
An example structure schematic diagram of a kind of puncture needle assembly that Fig. 3 provides for the embodiment of the invention;
The junction structural representation of inlying catheter assembly, puncture needle assembly and the shielding cap of a kind of safe type retention needle that Fig. 4 provides for the embodiment of the invention;
The structural representation of the first embodiment of a kind of shielding cap that Fig. 5 provides for the embodiment of the invention;
The second example structure schematic diagram of a kind of shielding cap that Fig. 6 provides for the embodiment of the invention;
The 3rd example structure schematic diagram of a kind of shielding cap that Fig. 7 provides for the embodiment of the invention.
The specific embodiment
The embodiment of the invention provides a kind of safe type retention needle and shielding cap, is used for avoiding medical personnel to be threaded a needle and stabs.
See also Fig. 1, an embodiment of a kind of safe type retention needle that the embodiment of the invention provides specifically comprises:
Inlying catheter assembly 1, puncture needle assembly 2 and shielding cap 3;
Puncture needle assembly 2 runs through inlying catheter assembly 1 and shielding cap 3;
Puncture needle assembly 2 can slide at inlying catheter assembly 1 and shielding cap 3 internal freedoms;
Front end stopping means 31 is arranged on the cavity inside of housing 35 front ends, can slide up and down in cavity;
Rear end stopping means 32 is fixed on housing 35 rear ends;
Extending passage 33 is between front end stopping means 31 and the rear end stopping means 32;
Front end stopping means 31 and rear end stopping means 32 centers arrange through hole, and through hole aligns with extension passage 33;
Puncture needle assembly 2 runs through the through hole at front end stopping means 31 and rear end stopping means 32 centers;
When puncture needle assembly 2 withdrawed from front end stopping means 31, front end stopping means 31 was owing to action of gravity, and the lower cavity bottom that slides into is stopped up and extended passage 33;
Rear end stopping means 32 is used for preventing that puncture needle assembly 2 breaks away from shielding cap 3.
In the present embodiment, safe type retention needle comprises inlying catheter assembly 1, puncture needle assembly 2, shielding cap 3;
After puncturing, inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 is extracted out, puncture needle assembly 2 is contained in the inside of shielding cap 3, continue to extract out puncture needle assembly 2, puncture needle assembly 2 withdraws from front end stopping means 31, and front end stopping means 31 breaks away from the holding power of puncture needle assembly 2, under action of gravity, slide to the cavity bottom, depart from original position, block and extend passage 33, stop puncture needle 21 oppositely to pass through.Rear end stopping means 32 can prevent that puncture needle assembly 2 breaks away from shielding cap 3.
In the present embodiment, puncture needle assembly 2 withdraws from front end stopping means 31, and front end stopping means 31 breaks away from the holding power of puncture needle assembly 2, under action of gravity, slides to the cavity bottom, departs from original position, blocks and extends passage 33, stops puncture needle assembly 2 oppositely to pass through.Rear end stopping means 32 can prevent that puncture needle assembly 2 breaks away from shielding cap 3.Continue to extract out puncture needle assembly 2; shielding cap 3 breaks away from inlying catheter assembly 1; puncture needle assembly 2 related shielding caps 3 together can be abandoned; thereby avoiding medical personnel to be threaded a needle stabs; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
See also Fig. 2, Fig. 3 and Fig. 4, an embodiment of a kind of safe type retention needle that the embodiment of the invention provides further comprises:
Inlying catheter assembly 1 comprises:
Batching pig 13 is fixed in the first interface 121;
Puncture needle 21 passes batching pig 13, stretches out in outside the second interface 122 of catheter block 12;
One end jointing 16 of extension tube 14, the other end and 123 sockets of the 3rd interface;
Puncture needle assembly 2 comprises:
Puncture needle 21, Paracentesis needle holder 22;
The afterbody of puncture needle 21 is fixed on the Paracentesis needle holder 22;
The front end of shielding cap 3 is plugged on the first interface 121, and puncture needle 21 passes front end stopping means 31, rear end stopping means 32 and extends passage 33.
The front end of shielding cap 3 is provided with the buckle 34 that matches with snap ring 124;
At least one projection 211 is set above the puncture needle 21;
Front end stopping means 31 and extension passage 33 can guarantee that whole puncture needle 21 passes through;
Front end stopping means 31 is after puncture needle passes through, and depart from the position, blocks and extends passage 33, stops puncture needle 21 to return.
In the present embodiment, those skilled in the art can think that inlying catheter assembly 1 and puncture needle assembly 2 are prior art, and its structure is common practise.
Need to prove, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from front end stopping means 31, and then stopping means 31 is subject to action of gravity and departs from original position, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.Then, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus, puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from front end stopping means 31, and then stopping means 31 is subject to action of gravity and departs from original position, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.Then, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus; puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons, and stabs thereby avoid medical personnel to be threaded a needle; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
See also Fig. 6, an embodiment of a kind of safe type retention needle that the embodiment of the invention provides further comprises:
Shell fragment 36;
Shell fragment 36 is arranged on a side of front end stopping means 31;
Shell fragment 36 is not in compressive state before triggering;
When puncture needle assembly 2 withdrawed from front end stopping means 31, shell fragment 36 was opened, and forced the front end stopping means to slide to the cavity bottom, blocked and extended passage 33.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from front end stopping means 31, and shell fragment 36 is opened, and forces the front end stopping means to slide to the cavity bottom, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle assembly 2, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus; puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons, and stabs thereby avoid medical personnel to be threaded a needle; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
See also Fig. 7, an embodiment of a kind of safe type retention needle that the embodiment of the invention provides further comprises:
The first Magnetitum 37 and the second Magnetitum 38;
The first Magnetitum 37 is fixed on the housing 35 of front end stopping means 31 1 sides;
The second Magnetitum 38 and the first Magnetitum 37 are symmetrical arranged, and are fixed on the front end stopping means 31;
When puncture needle assembly 2 withdrawed from front end stopping means 31, the second Magnetitum 38 was subject to the gravitation of the first Magnetitum 37, forced front end stopping means 31 to slide to the first Magnetitum 37, stopped up and extended passage 33.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from the gravitation that front end stopping means 31, the second Magnetitums 38 are subject to the first Magnetitum 37, forces front end stopping means 31 to slide to the first Magnetitum 37, stops up and extends passage 33, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle assembly 2, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus; puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons, and stabs thereby avoid medical personnel to be threaded a needle; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
The above is described an embodiment of a kind of safe type retention needle that the embodiment of the invention provides, and the below is described an embodiment of a kind of shielding cap that the embodiment of the invention provides:
See also Fig. 5, an embodiment of a kind of shielding cap provided by the invention specifically comprises:
Extend passage 33, front end stopping means 31 and rear end stopping means 32;
The front end of shielding cap 3 is by being plugged on the first interface 121, and puncture needle 21 passes front end stopping means 31, rear end stopping means 32 and extends passage 33.
After puncturing, conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle 21 needle points were accommodated in the inside of shielding cap 3, continued to extract out puncture needle assembly 2, puncture needle 21 all withdraws from front end stopping means 31, then stopping means 31 departs from original position, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.
After puncturing, conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle 21 needle points were accommodated in the inside of shielding cap 3, continued to extract out puncture needle assembly 2, puncture needle 21 all withdraws from front end stopping means 31, then stopping means 31 departs from original position, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.
An embodiment who sees also a kind of shielding cap that Fig. 6 embodiment of the invention provides further comprises:
Shell fragment 36;
Shell fragment 36 is arranged on a side of front end stopping means 31;
Shell fragment 36 is not in compressive state before triggering;
When puncture needle assembly 2 withdrawed from front end stopping means 31, shell fragment 36 was opened, and forced the front end stopping means to slide to the cavity bottom, blocked and extended passage 33.
When puncture needle assembly 2 withdrawed from front end stopping means 31, shell fragment 36 was opened, and forced the front end stopping means to slide to the cavity bottom, blocked and extended passage 33.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from front end stopping means 31, and shell fragment 36 is opened, and forces the front end stopping means to slide to the cavity bottom, blocks and extends passage 33, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle assembly 2, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus; puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons, and stabs thereby avoid medical personnel to be threaded a needle; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
An embodiment who sees also a kind of shielding cap that Fig. 7 embodiment of the invention provides further comprises:
The first Magnetitum 37 and the second Magnetitum 38;
The first Magnetitum 37 is fixed on the housing 35 of front end stopping means 31 1 sides;
The second Magnetitum 38 and the first Magnetitum 37 are symmetrical arranged, and are fixed on the front end stopping means 31;
When puncture needle assembly 2 withdrawed from front end stopping means 31, the second Magnetitum 38 was subject to the gravitation of the first Magnetitum 37, forced front end stopping means 31 to slide to the first Magnetitum 37, stopped up and extended passage 33.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of shielding cap 3, and projection 211 is in and extends in the passage 33.Continue to extract puncture needle assembly 2 out, puncture needle 21 all withdraws from the gravitation that front end stopping means 31, the second Magnetitums 38 are subject to the first Magnetitum 37, forces front end stopping means 31 to slide to the first Magnetitum 37, stops up and extends passage 33, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle assembly 2, stopping means 32 contact projections 211 in rear end because projection 211 can not be passed through stopping means 32, so it is mobile together with puncture needle 21 to drive stopping means 32, cause buckle 33 and snap ring 124 to break away from.Thus; puncture needle assembly 2 separates with inlying catheter assembly 1, and puncture needle assembly 2 realizes that safety abandons, and stabs thereby avoid medical personnel to be threaded a needle; because the volume of shielding cap 3 volumes all risk insurance protective case relatively of the prior art is little, so the medical worker is more convenient to use.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a safe type retention needle is characterized in that, comprising:
Inlying catheter assembly (1), puncture needle assembly (2) and shielding cap (3);
Described shielding cap (3) is installed on the described inlying catheter assembly (1) by removably;
Described puncture needle assembly (2) slides and runs through described inlying catheter assembly (1) and shielding cap (3);
Described shielding cap (3) comprising:
Housing (35), extension passage (33), front end stopping means (31) and rear end stopping means (32);
Described housing (35) is the cylindrical, hollow housing;
Described front end stopping means (31) is arranged on the cavity inside of described housing (35) front end, can slide up and down in described cavity;
Described rear end stopping means (32) is fixed on described housing (35) rear end;
Described extension passage (33) is between described front end stopping means (31) and the described rear end stopping means (32);
Described front end stopping means (31) and described rear end stopping means (32) center arrange through hole, and described through hole aligns with described extension passage (33);
Described puncture needle assembly (2) runs through the through hole at described front end stopping means (31) and described rear end stopping means (32) center;
When described puncture needle assembly (2) withdrawed from described front end stopping means (31), described front end stopping means (31) stopped up described extension passage (33) because action of gravity slides into described cavity bottom down;
Described rear end stopping means (32) is used for preventing that described puncture needle assembly (2) breaks away from described shielding cap (3).
2. safe type retention needle according to claim 1 is characterized in that, described shielding cap (3) also comprises:
Shell fragment (36);
Described shell fragment (36) is arranged on a side of described front end stopping means (31);
Described shell fragment (36) is not in compressive state before triggering;
When described puncture needle assembly (2) withdrawed from front end stopping means (31), shell fragment (36) was opened, and forced described front end stopping means to slide to described cavity bottom, blocked described extension passage (33).
3. safe type retention needle according to claim 1 is characterized in that, described shielding cap (3) also comprises:
The first Magnetitum (37) and the second Magnetitum (38);
Described the first Magnetitum (37) is fixed on the housing (35) of described front end stopping means (31) one sides;
Described the second Magnetitum (38) is symmetrical arranged with described the first Magnetitum (37), is fixed on the described front end stopping means (31);
When described puncture needle assembly (2) withdraws from front end stopping means (31), described the second Magnetitum (38) is subject to the gravitation of described the first Magnetitum (37), force described front end stopping means (31) to slide to described the first Magnetitum (37), stop up described extension passage (33).
4. according to claim 1 to 3 described safe type retention needles, it is characterized in that,
Described inlying catheter assembly (1) comprising:
Conduit (11), catheter block (12), batching pig (13), extension tube (14), pipe clamp (15) and joint (16);
Described catheter block (12) comprising:
First interface (121), the second interface (122) and the 3rd interface (123);
Described batching pig (13) is fixed in the described first interface (121);
Described first interface (121) axially connects built-in puncture needle assembly (1) with described the second interface (122);
Described puncture needle (21) passes described batching pig (13), stretches out in outside second interface (122) of catheter block (12);
One end of described extension tube (14) connects described joint (16), the other end and described the 3rd interface (123) socket;
Described pipe clamp (15) is enclosed within on the described extension tube (14);
Described conduit (11) is socketed on described the second interface (122), and is sleeved on the described puncture needle (21).
5. according to claim 1 to 3 described safe type retention needles, it is characterized in that,
Described puncture needle assembly (2) comprising:
Puncture needle (21), Paracentesis needle holder (22);
The afterbody of described puncture needle (21) is fixed on the described Paracentesis needle holder (22);
The front end of described shielding cap (3) is by being plugged on the described first interface (121), and described puncture needle (21) passes described front end stopping means (31), described rear end stopping means (32) and described extension passage (33).
6. safe type retention needle according to claim 5 is characterized in that,
Described first interface (121) locates to be provided with at least one snap ring (124);
The front end of described shielding cap (3) is provided with the buckle (34) that matches with described snap ring (124);
Described shielding cap (3) is connected with described snap ring (124) by described buckle (34).
7. safe type retention needle according to claim 6 is characterized in that,
At least one projection (211) is set above the described puncture needle (21);
Described front end stopping means (31) and extension passage (33) can guarantee that whole puncture needle (21) passes through;
Projection (211) on described rear end stopping means (32) the restriction puncture needle (21) can not be passed through;
Described front end stopping means (31) is after puncture needle passes through, and depart from the position, blocks and extends passage (33), stops puncture needle (21) to return.
8. a shielding cap is characterized in that, comprising:
Housing (35), extension passage (33), front end stopping means (31) and rear end stopping means (32);
Described front end stopping means (31) is arranged on the cavity inside of described housing (35) front end, can slide up and down in described cavity;
Described rear end stopping means (32) is fixed on described housing (35) rear end;
Described extension passage (33) is between described front end stopping means (31) and the described rear end stopping means (32);
Described front end stopping means (31) and described rear end stopping means (32) center arrange through hole, and described through hole aligns with described extension passage (33);
Described puncture needle assembly (2) runs through the through hole at described front end stopping means (31) and described rear end stopping means (32) center;
When described puncture needle assembly (2) withdrawed from described front end stopping means (31), described front end stopping means (31) stopped up described extension passage (33) because action of gravity slides into described cavity bottom down;
Described rear end stopping means (32) is used for preventing that described puncture needle assembly (2) breaks away from described shielding cap (3).
9. shielding cap according to claim 8 is characterized in that, described shielding cap also comprises:
Shell fragment (36);
Described shell fragment (36) is arranged on a side of described front end stopping means (31);
Described shell fragment (36) is not in compressive state before triggering;
When described puncture needle assembly (2) withdrawed from front end stopping means (31), shell fragment (36) was opened, and forced described front end stopping means to slide to described cavity bottom, blocked described extension passage (33).
10. shielding cap according to claim 8 is characterized in that, described shielding cap also comprises:
The first Magnetitum (37) and the second Magnetitum (38);
Described the first Magnetitum (37) is fixed on the housing (35) of described front end stopping means (31) one sides;
Described the second Magnetitum (38) is symmetrical arranged with described the first Magnetitum (37), is fixed on the described front end stopping means (31);
When described puncture needle assembly (2) withdraws from front end stopping means (31), described the second Magnetitum (38) is subject to the gravitation of described the first Magnetitum (37), force described front end stopping means (31) to slide to described the first Magnetitum (37), stop up described extension passage (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003103.9A CN103007385B (en) | 2013-01-05 | 2013-01-05 | Secure type indwelling and shielding cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003103.9A CN103007385B (en) | 2013-01-05 | 2013-01-05 | Secure type indwelling and shielding cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103007385A true CN103007385A (en) | 2013-04-03 |
| CN103007385B CN103007385B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310003103.9A Active CN103007385B (en) | 2013-01-05 | 2013-01-05 | Secure type indwelling and shielding cap |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103990202A (en) * | 2013-12-16 | 2014-08-20 | 苏州林华医疗器械有限公司 | Safety-type venous indwelling needle |
| CN104189975A (en) * | 2014-09-23 | 2014-12-10 | 广州阳普医疗科技股份有限公司 | Remaining needle with quick blood returning function |
| WO2015027427A1 (en) * | 2013-08-29 | 2015-03-05 | 阳普医疗（湖南）有限公司 | Device for puncturing heparin cap and vascular access system |
| CN107335107A (en) * | 2017-08-15 | 2017-11-10 | 西藏多欣医疗器械制造有限公司 | A kind of magnetic control self-sealing venous detaining needle |
| WO2019019169A1 (en) * | 2017-07-28 | 2019-01-31 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle having indwelling air cavity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015027427A1 (en) * | 2013-08-29 | 2015-03-05 | 阳普医疗（湖南）有限公司 | Device for puncturing heparin cap and vascular access system |
| CN105492065A (en) * | 2013-08-29 | 2016-04-13 | 阳普医疗（湖南）有限公司 | Device for puncturing heparin cap and vascular access system |
| CN103990202A (en) * | 2013-12-16 | 2014-08-20 | 苏州林华医疗器械有限公司 | Safety-type venous indwelling needle |
| CN104189975A (en) * | 2014-09-23 | 2014-12-10 | 广州阳普医疗科技股份有限公司 | Remaining needle with quick blood returning function |
| WO2019019169A1 (en) * | 2017-07-28 | 2019-01-31 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle having indwelling air cavity |
| CN107335107A (en) * | 2017-08-15 | 2017-11-10 | 西藏多欣医疗器械制造有限公司 | A kind of magnetic control self-sealing venous detaining needle |
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|---|---|
| CN103007385B (en) | 2014-07-16 |
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Application publication date: 20130403 Assignee: Jiangsu Yang Pu medical science and technology company limited Assignor: Guangzhou Improve Medical Co., Ltd. Contract record no.: 2015320000140 Denomination of invention: Secure type indwelling and shielding cap Granted publication date: 20140716 License type: Exclusive License Record date: 20150407 |
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Effective date of registration: 20190118 Address after: 510000 Kaiyuan Avenue 102, Science City, Guangzhou Economic and Technological Development Zone, Guangdong Province Co-patentee after: Sunny medical (Hunan) Co., Ltd. Patentee after: Guangzhou Improve Medical Co., Ltd. Address before: 510000 Kaiyuan Avenue 102, Science City, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: Guangzhou Improve Medical Co., Ltd. |
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Address after: 519031 office 2320, No. 3000, Huandao East Road, Hengqin new area, Zhuhai, Guangdong Patentee after: Yangpu Medical Technology Co.,Ltd. Patentee after: Yangpu medical (Hunan) Co., Ltd Address before: 510000 Kaiyuan Avenue 102, Science City, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: GUANGZHOU IMPROVE MEDICAL TECHNOLOGY Co.,Ltd. Patentee before: Yangpu medical (Hunan) Co., Ltd |
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