CN211986545U - Self-destruction, pulling and shrinking safety protection needle - Google Patents
Self-destruction, pulling and shrinking safety protection needle Download PDFInfo
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- CN211986545U CN211986545U CN201921915455.0U CN201921915455U CN211986545U CN 211986545 U CN211986545 U CN 211986545U CN 201921915455 U CN201921915455 U CN 201921915455U CN 211986545 U CN211986545 U CN 211986545U
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Abstract
The utility model relates to a self-destruction pull-shrink safety protection needle, which comprises an injection needle comprising a needle cylinder and a push cylinder, a clamping choke part is defined at the side part of the needle cylinder adjacent to the outlet part of the needle cylinder, a needle cylinder combination body holding area is defined in the needle cylinder, a push cylinder sealing soft sleeve is positioned on the push cylinder through a push cylinder sealing soft sleeve combining part and a push cylinder piston part, an integral function combination body is arranged at the side part of the outlet part of the needle cylinder, a combination body liquid outlet and a combination body combining part capable of combining the needle head are arranged on the integral function combination body, a clamping device and a limiting and stopping device are arranged between the needle cylinder and the integral function combination body, a self-destruction device is arranged between the push cylinder and the integral function combination body, the self-destruction device comprises a self-destruction joint component and a self-destruction positioning component, an air-tight device is defined on the integral function combination body, thus the push cylinder and the integral function combination body can be combined through the self-destruction device, so as to draw and shrink the needle head into the syringe, prevent reuse and improve safety.
Description
Technical Field
The present invention relates to a self-destruction, pull-back and safety needle, and more particularly to a self-destruction, pull-back and safety needle which utilizes a plunger to inject the liquid into a syringe, and then actively pushes the syringe to combine with a whole functional assembly, and then pulls back the syringe to prevent reuse.
Background
Since the medical devices for injection are medical devices which contact human tissues or blood, they are basically discarded after one use, but many unskilled persons can recycle the medical devices for reuse or use the same injection needle by many persons, which is a dangerous behavior for patients, and thus, there are many countries which have started to make legislation to use disposable safety needles to prevent such situations.
General safety needles are classified into a mode that a sleeve can be installed on a needle after use to prevent reuse or a pushing cylinder can be clamped in a needle cylinder after use, however, if the safety needles using the safety sleeves are used, the effect of protection and disposable use cannot be achieved if the safety sleeves are not actively installed after use, and when the safety needles using the pushing cylinder clamped in the needle cylinder, although the effect of active self-destruction can be achieved after use, the needle can be exposed out of the needle cylinder, and the danger of accidental touch of the needle can be caused.
Therefore, how to solve the above-mentioned problems and disadvantages is the direction in which the applicant of the present invention and the related manufacturers engaged in the industry need to research and improve.
SUMMERY OF THE UTILITY MODEL
Therefore, in view of the above-mentioned shortcomings, the designer of the present invention collects relevant information, evaluates and considers in many ways, and tries to make many years of experience accumulated in this industry, and tries to make and modify continuously, and starts to design a new patent of a self-destruction retractable safety protection needle with an active self-destruction effect and capable of retracting the needle head into the syringe to increase safety.
The utility model discloses a main aim at: the push cylinder is combined with the integral function combination body through the self-destruction device, and the integral function combination body can pull and retract the needle head into the needle cylinder by utilizing the clamping and releasing device, so that the safety is improved.
The utility model discloses a still another main aim at: the combination body limiting and stopping part in the limiting and stopping device is abutted against the syringe body limiting and stopping part, so that the integral functional combination body is prevented from rotating in the syringe body, and the needle head cannot be tightly installed.
To achieve the above object, the present invention provides a self-destruction retractable safety needle, which is characterized in that it mainly comprises:
an injection needle device, which comprises a needle cylinder and a push cylinder movably arranged at one end of the needle cylinder;
a syringe inlet defined at one end of the syringe;
a syringe outlet part, which is defined at one end of the syringe departing from the syringe inlet part and is used for the push cylinder to be movably arranged at the syringe outlet part;
at least one card-off choke part which is defined in the syringe and is positioned at the side adjacent to the outlet part of the syringe;
a syringe combination receiving area defined in the syringe and located adjacent to the outlet portion of the syringe;
at least one push cylinder sealing soft sleeve joint part, wherein the push cylinder sealing soft sleeve joint part is defined on the push cylinder;
at least one push cylinder piston part, which is defined on the push cylinder and is positioned at one side of the joint part of the push cylinder sealing soft sleeve;
the push cylinder sealing soft sleeve is positioned on the push cylinder through the combination of the push cylinder sealing soft sleeve and the push cylinder piston part;
the integral function combination body is positioned at the side of the outlet part of the needle cylinder;
at least one combination body combining part which is defined on the overall function combination body and is used for combining a needle;
a combined body liquid outlet defined on the integral functional combined body;
a needle cylinder, a needle cylinder combined body and a needle cylinder combined body, wherein the needle cylinder combined body is provided with a needle cylinder clamping and releasing part and a needle cylinder clamping and releasing part;
a limit stop device, which is arranged between the integral function combination and the needle cylinder and comprises at least one needle cylinder limit stop part defined on the needle cylinder clamping and releasing part and at least one combination limit stop part defined on the combination clamping and releasing part, so that the integral function combination and the needle cylinder can relatively limit and rotate;
a self-destruction device, which is defined between the pushing cylinder and the integral function combination body and comprises a self-destruction joint component defined on the pushing cylinder and a self-destruction positioning component defined on the integral function combination body, wherein the self-destruction joint component comprises at least one self-destruction joint rod piece connected on the pushing cylinder and a self-destruction joint rod hooking part formed at the end of the self-destruction joint rod piece, and the self-destruction positioning component comprises a self-destruction positioning through hole part formed on the integral function combination body and at least one self-destruction positioning hooking part formed at the side of the self-destruction positioning through hole part; and
and the airtight device is defined on the integral functional combination body and comprises at least one airtight ring piece combination part formed on the integral functional combination body and at least one airtight elastic ring piece combined on the airtight ring piece combination part.
The self-destruction pull-shrink safety protection needle tool comprises: the self-destruction device also comprises at least one self-destruction warning part defined on the push cylinder.
The self-destruction pull-shrink safety protection needle tool comprises: the self-destruction joint component also comprises a self-destruction joint rod elbow part and a self-destruction joint rod expansion part which are all defined at the side of the self-destruction joint rod piece.
The self-destruction pull-shrink safety protection needle tool comprises: the self-destruction positioning component also comprises at least one self-destruction positioning guide part positioned at the side of the self-destruction positioning hook card part.
The self-destruction pull-shrink safety protection needle tool comprises: the self-destruction positioning assembly further comprises at least one self-destruction positioning contraction and expansion guide part positioned at the side of the self-destruction positioning perforation part.
The self-destruction pull-shrink safety protection needle tool comprises: the airtight device also comprises at least one airtight elastic ring anti-falling part positioned at the side of the airtight ring joint part.
The self-destruction pull-shrink safety protection needle tool comprises: a combined correcting and guiding device is defined between the integrated function combination body and the needle cylinder, and the combined correcting and guiding device comprises at least one combination correcting and guiding part defined on the integrated function combination body.
The self-destruction pull-shrink safety protection needle tool comprises: the combined correcting and guiding device also comprises at least one syringe correcting and guiding part defined on the syringe.
The self-destruction pull-shrink safety protection needle tool comprises: the syringe needle is defined with a needle anti-disengaging device which comprises at least one syringe anti-disengaging limiting part defined on the syringe and at least one push cylinder anti-disengaging limiting part defined on the push cylinder.
The self-destruction pull-shrink safety protection needle tool comprises: the needle anti-disengaging device also comprises at least one syringe anti-disengaging combined guide part defined on the syringe anti-disengaging limiting part.
The self-destruction pull-shrink safety protection needle tool comprises: the needle anti-disengaging device also comprises at least one push cylinder anti-disengaging combined guide part defined on the push cylinder anti-disengaging limiting part.
The self-destruction pull-shrink safety protection needle tool comprises: the needle is provided with a needle cover.
The self-destruction pull-shrink safety protection needle tool comprises: the syringe needle is defined with a needle operating device, and the needle operating device comprises at least one push cylinder operating part arranged on the push cylinder and at least one syringe operating part arranged on the syringe.
The self-destruction pull-shrink safety protection needle tool comprises: the push cylinder is defined with at least one push cylinder cut-out portion.
The self-destruction pull-shrink safety protection needle tool comprises: the push cylinder is defined with at least one push cylinder sealing soft sleeve combined guide part.
The self-destruction pull-shrink safety protection needle tool comprises: the injection needle has at least one needle marking code portion defined thereon.
The self-destruction pull-shrink safety protection needle tool comprises: the needle cylinder clamping and releasing device also comprises at least one needle cylinder clamping and releasing guide sliding part which is defined at the needle cylinder clamping and releasing part side.
The self-destruction pull-shrink safety protection needle tool comprises: the releasing device also includes at least one combined body releasing guiding sliding part defined at the combined body releasing part side.
The self-destruction pull-shrink safety protection needle tool comprises: the integral function combination body is defined with an inclined pressing part.
The self-destruction pull-shrink safety protection needle tool comprises: the barrel defines at least one angled needle restraining portion thereon.
The self-destruction pull-shrink safety protection needle tool comprises: at least one push cylinder sealing soft sleeve positioning resetting part is defined at the side of the push cylinder sealing soft sleeve combining part.
By means of the structure, a user can firstly clamp the combined body clamping and disengaging part on the integral function combined body on the needle cylinder clamping and disengaging part before injection, so that the integral function combined body is clamped on the needle cylinder, then the needle head is arranged on the combined body combining part through the position of the outlet part of the needle cylinder, so that the needle head is combined on the integral function combined body, and when the needle head is arranged, the combined body limiting and stopping part in the limiting and stopping device can be abutted against the needle cylinder limiting and stopping part to prevent the integral function combined body from rotating in the needle cylinder, so that the needle head cannot be tightly arranged.
The pushing cylinder can penetrate into the needle cylinder at the inlet part of the needle cylinder, and the pushing cylinder sealing soft sleeve pushes liquid medicine, so that the liquid medicine is injected into a human body through the combined liquid outlet and the needle head.
After the liquid medicine is injected, the self-destruction joint component in the self-destruction device is combined with the self-destruction positioning component to combine the pushing cylinder with the integral function combination body, namely, the self-destruction joint rod piece in the self-destruction joint component penetrates into the self-destruction positioning perforation part in the self-destruction positioning component, and the hook clamping part of the self-destruction joint rod is clamped on the self-destruction positioning hook clamping part, so that the pushing cylinder is combined with the integral function combination body, a user can pass the combined body clamping part through the clamping and releasing part to be separated from the needle cylinder clamping and releasing part only by applying force, so that the pushing cylinder and the integral function combination body are pulled towards the inlet part of the needle cylinder, and meanwhile, the needle head can be pulled into the needle cylinder, so that the needle head can be prevented from being touched by others again, and the use safety is improved.
By means of the technology, the safe needle can break through the problems that the existing sleeve type safe needle cannot be actively self-destroyed and the self-destroyed safe needle still has safety, and the practical progress of the advantages is achieved.
Drawings
Fig. 1 is a sectional view of a first embodiment of the present invention.
Fig. 2 is an exploded view of the first embodiment of the present invention.
Fig. 2A is a partial schematic view (a) of the first embodiment of the present invention.
Fig. 2B is a partial schematic view (ii) of the first embodiment of the present invention.
Fig. 2C is a partial schematic view (iii) of the first embodiment of the present invention.
Fig. 2D is a partial cross-sectional view of the first embodiment of the present invention.
Fig. 3 is a schematic usage diagram of the first embodiment of the present invention.
Fig. 4 is a schematic diagram of the first embodiment of the present invention.
Fig. 5 is a schematic self-destruction view of the first embodiment of the present invention.
Fig. 6 is a schematic diagram of the first embodiment of the present invention.
Fig. 7 is an exploded view of a second embodiment of the invention.
Fig. 8 is a schematic diagram of the second embodiment of the present invention.
Fig. 9 is a schematic view of the swing of the second embodiment of the present invention.
Fig. 10 is an exploded view of a third embodiment of the present invention.
Fig. 11 is a schematic warning diagram according to a third embodiment of the present invention.
Fig. 12 is a schematic diagram of the third embodiment of the present invention.
Fig. 13 is an exploded view of a fourth embodiment of the present invention.
Fig. 14 is a combination diagram of the fourth embodiment of the present invention.
Fig. 15 is a schematic diagram of a fourth embodiment of the present invention showing a fracture.
Fig. 16 is a front view of a fifth embodiment of the present invention.
Description of reference numerals: injection needles 1, 1b, 1c, 1 d; needle cylinder 11, 11a, 11b, 11 c; a syringe inlet portion 111; a syringe outlet portion 112, 112 a; a cylinder combination receiving area 113; a slanted needle stopper 114 a; a needle mark encoding part 115 d; push cylinders 12, 12a, 12b, 12 c; a push cylinder sealing soft sleeve joint part 121; a push cylinder sealing soft sleeve combined guide part 122; a pusher piston portion 123; a push cylinder sealing soft sleeve positioning resetting part 124 a; the push cylinder sealing soft sleeves 125, 125 a; a self-destruction warning portion 126 b; a pusher cutout portion 127 c; a needle operating device 13 b; a pusher operating portion 131 b; a syringe operating section 132 b; a needle detachment prevention device 14 c; a syringe retaining stopper 141 c; a cylinder detachment prevention assembly guide 1411 c; a pusher anti-drop stopper 142 c; a barrel separation prevention combination guide part 1421 c; the overall functional combinations 2, 2a, 2b, 2 c; a combined body combining part 21; a combined liquid outlet 22; a chucking-off device 3; the combined body engaging and disengaging parts 31, 31 b; a combined body engaging and disengaging slide guide 311 b; syringe engaging and disengaging portions 32, 32 b; a cylinder engaging/disengaging guide 321 b; a card-removal choke portion 33; a limit stop device 4; a combination limiting and stopping part 41; a syringe limit stopper 42; self-destruct devices 5, 5b, 5 c; self-destructing splice components 51, 51 b; self-destruct bond bars 511, 511 a; a self-destruction joint rod hooking part 512; a self-destruct engagement lever toggle 513; a self-destructing bond post expansion 514; self-destruct positioning components 52, 52 b; a self-destruction locating perforation 521; a self-destruction positioning hooking part 522; a self-destruction positioning guide 523; a self-destruction positioning contraction and expansion flow guide part 524; the inclined pressing portion 6 a; an airtight device 7; an airtight ring joint 71; an airtight elastic ring member 72; an airtight elastic ring retaining portion 73; a combined straightening guide device 8; a combined body correction guide part 81; a cylinder correction guide 82; needles 9, 9a, 9c, 9 d; needle cover 91 d.
Detailed Description
To achieve the above objects and advantages, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 to fig. 2D are sectional views to partial sectional views showing the first embodiment of the present invention, and it can be clearly seen from the drawings that the present invention includes:
an injection needle 1, the injection needle 1 includes a syringe 11 and a push cylinder 12, the two ends of the syringe 11 are respectively defined as a syringe inlet 111 and a syringe outlet 112, and the push cylinder 12 is movably disposed at one end of the syringe inlet 111;
a cylinder assembly receiving area 113 defined in the cylinder 11, the cylinder assembly receiving area 113 being located adjacent to the side of the cylinder outlet 112;
a plunger sealing boot coupling portion 121 defined on the plunger 12;
a push cylinder sealing soft sleeve combination guide part 122 defined on the push cylinder sealing soft sleeve combination part 121;
a plunger piston portion 123 defined on the plunger 12, the plunger piston portion 123 being located at one side of the plunger sealing soft sleeve joint portion 121;
a plunger sealing soft cover 125, the plunger sealing soft cover 125 is combined with the plunger 12 through the plunger sealing soft cover combining part 121 and the plunger part 123;
an integral function combination 2 located in the needle cylinder combination accommodating area 113, and the integral function combination 2 is defined with a combination combining portion 21 and a combination liquid outlet 22, the combination combining portion 21 can be combined with a needle 9, in this embodiment, a screw-locking manner is used, but it is not limited;
a locking and releasing device 3 defined between the integral function combination 2 and the needle cylinder 11, wherein the locking and releasing device 3 comprises at least one combination locking and releasing part 31 defined on the integral function combination 2 and at least one needle cylinder locking and releasing part 32 defined on the needle cylinder 11, the combination locking and releasing part 31 in the embodiment is a convex block formed on the integral function combination 2, and the needle cylinder locking and releasing part 32 is a concave part which is formed on the needle cylinder 11 and has a shape corresponding to the combination locking and releasing part 31, but the shape is not limited;
a card-removal choke portion 33 defined in the cylinder 11 and located at the side of the cylinder card-removal portion 32;
a limit stop device 4 defined between the integral function combination 2 and the needle cylinder 11, wherein the limit stop device 4 comprises at least one combination limit stop part 41 defined at the side of the combination trip part 31 and at least one needle cylinder limit stop part 42 defined at the side of the needle cylinder trip part 32;
a self-destruction device 5 defined between the integrated function combination 2 and the push cylinder 12, the self-destruction device 5 comprises a self-destruction joint component 51 defined on the push cylinder 12 and a self-destruction positioning component 52 defined on the integrated function combination 2, wherein the self-destruction joint component 51 comprises at least one self-destruction joint rod 511 connected to the push cylinder 12, a self-destruction joint rod hooking part 512 formed at the end of the self-destruction joint rod 511, a self-destruction joint rod elbow part 513 defined at the side of the self-destruction joint rod 511, and a self-destruction joint rod expansion part 514 defined at the side of the self-destruction joint rod elbow part 513, and the self-destruction positioning component 52 comprises a self-destruction positioning through hole part 521 formed on the integrated function combination 2, at least one self-destruction positioning hooking part 522 formed at the side of the self-destruction positioning through hole part 521, at least one self-destruction positioning guiding part 523 formed at the side of the self-destruction positioning hooking part 522, and a self-destruction positioning guiding part 523, At least one self-destruction positioning contraction and expansion flow guide part 524 positioned at the side of the self-destruction positioning perforation part 521;
the airtight device 7 is arranged on the integrated functional combination body 2, and the airtight device 7 comprises at least one airtight ring piece combination part 71 formed on the integrated functional combination body 2, at least one airtight elastic ring piece 72 combined on the airtight ring piece combination part 71, and an airtight elastic ring piece anti-falling part 73 defined at the airtight ring piece combination part 71 side; and
a combined straightening and guiding device 8 defined between the integrated function combination 2 and the needle cylinder 11, wherein the combined straightening and guiding device 8 comprises at least one combination straightening and guiding part 81 defined on the integrated function combination 2 and at least one needle cylinder straightening and guiding part 82 defined on the needle cylinder 11.
With the above description in mind, the structure of the present technology can be understood, and the corresponding cooperation of the structure can achieve the advantages of active self-destruction after injection and increased safety after use, and the detailed description will be described below.
Please refer to fig. 1 to 6, which are a schematic diagram illustrating a cross-sectional view of a first embodiment of the present invention, when the above components are assembled, it is clear from the drawings that a user needs to first place the integrated functional assembly 2 in the receiving area 113 of the syringe assembly 11, and then align the assembly engaging/disengaging portion 31 of the integrated functional assembly 2 with the syringe engaging/disengaging portion 32 of the engaging/disengaging device 3 by the guiding effect of the syringe straightening guiding portion 82 of the combined straightening guiding device 8 and the straightening guiding portion 81 of the combined straightening guiding device, and engage the combined engaging/disengaging portion 31 with the syringe engaging/disengaging portion 32 to engage with each other, so that the integrated functional assembly 2 is engaged with the syringe 11, and then the needle 9 can enter the syringe 11 from the position of the outlet 112 of the syringe and be locked on the combined body engaging portion 21, the combined straightening guiding portion 81 and the syringe straightening guiding portion 82 in this embodiment are inclined planes corresponding to each other, however, the needle 9 is not limited, and when the needle 9 is locked on the combination combining portion 21, the syringe limiting stopper 42 and the combination limiting stopper 41 in the limiting stopper 4 will interfere with each other to prevent the integral functional combination 2 from rotating in the syringe 11, so that the needle 9 can be tightly locked on the combination combining portion 21 to prevent leakage.
When the plunger sealing soft cover 125 is combined with the plunger 12, the plunger 12 will be smoothly and rapidly clamped between the plunger piston 123 and the plunger sealing soft cover combining part 121 through the guiding effect of the plunger sealing soft cover combining guiding part 122 to prevent the plunger sealing soft cover 125 from being separated, the plunger 12 will penetrate into the syringe 11 at the syringe inlet 111, and the plunger sealing soft cover 125 will be completely attached to the inner wall of the syringe 11 to push the liquid medicine in the syringe 11 to enter the human body through the combined liquid outlet 22 and the needle 9, and when the plunger 12 is used to drive the plunger sealing soft cover 125, the plunger sealing soft cover 125 can be completely combined and positioned on the plunger 12 through the mutual clamping effect of the plunger piston 123 and the plunger sealing soft cover combining part 121, and when the liquid medicine is injected, the airtight elastic ring piece 72 in the airtight device 7 will be combined with the integral functional combined body 2 through the airtight ring piece combining part 71, when the syringe 11 is combined with the integrated functional combination 2, the airtight elastic ring piece 72 is prevented from sliding due to pushing by the airtight elastic ring piece anti-falling part 73, so that the airtight elastic ring piece 72 is separated from the airtight ring piece combining part 71, and thus the airtight elastic ring piece 72 is completely positioned, abutted and tightly pressed on the inner wall of the syringe 11, so as to prevent the liquid medicine from flowing out from the gap between the integrated functional combination 2 and the syringe 11, causing unnecessary waste and preventing air from entering when the liquid medicine is sucked.
After the injection of the liquid medicine in the syringe 11 is completed, the self-destruction engaging component 51 and the self-destruction positioning component 52 in the self-destruction device 5 are combined with each other in the following way: the self-destruction joint rod 511 will pass through the self-destruction positioning through hole 521, so that the self-destruction joint rod hooking part 512 is hooked on the self-destruction positioning hooking part 522, when the self-destruction joint rod 511 passes through the self-destruction positioning through hole 521, the self-destruction joint rod 511 will be pushed to move inwards to the self-destruction joint rod expansion part 514 by the guiding effect of the self-destruction positioning guiding part 523, and the self-destruction positioning hooking part 522 will move outwards to the self-destruction positioning expansion guiding part 524, when the self-destruction positioning hooking part 522 passes through the self-destruction positioning through hole 521, the self-destruction joint rod 511 will rebound to the original position by the elastic force given by the self-destruction joint rod toggle part 513, so as to drive the self-destruction joint rod hooking part 512 to be hooked on the self-destruction positioning hooking part 522, and then the pusher 12 can be combined on the whole function combination 2 by the self-destruction joint component 51 and the self-destruction positioning component 52, thereby achieving the active self-destruction effect, to prevent another person from using the injection needle 1 again, but it is not limited thereto.
Then, a user can apply force to pull the pushing cylinder 12 towards the inlet 111 of the syringe to drive the pushing cylinder 12 and the integral functional combination 2 to operate, wherein the combination fastening and releasing portion 31 is separated from the fastening and releasing portion 32 of the syringe, so that the combination fastening and releasing portion 31 crosses the barrier of the fastening and releasing portion 33 to enter the syringe 11, and thus the needle 9 is driven to enter the syringe 11 together, and the needle 9 can be completely retracted into the syringe 11 to increase the safety of the whole.
Referring to fig. 7 to 9, the exploded view to the swing schematic view of the second embodiment of the present invention is shown, and it is clearly seen from the drawings that the present embodiment is the same as the above embodiments, the integral functional combination 2a of the present embodiment defines an inclined pressing portion 6a, the needle cylinder 11a defines an inclined needle limiting portion 114a, the pushing cylinder 12a defines a pushing cylinder sealing soft cover positioning and returning portion 124a, when the needle 9a is brought into the needle cylinder 11a by the integral functional combination 2a, the inclined pressing portion 6a will correspondingly press the pushing cylinder sealing soft cover 125a, and the pushing cylinder sealing soft cover 125a will return by the guiding of the pushing cylinder sealing soft cover positioning and returning portion 124a, so that the pushing cylinder sealing soft cover 125a will collide with the inclined pressing portion 6a during injection, thereby generating an excellent positioning effect and ensuring that the pushing cylinder sealing soft cover 125a can return to the original position after moving, that is, the push cylinder sealing soft cover 125a will follow the inclined plane of the push cylinder sealing soft cover positioning return portion 124a (the push cylinder sealing soft cover positioning return portion 124a in this embodiment is an inclined plane capable of assisting the push cylinder sealing soft cover 125a to slide, but it is not limited thereto), when moving in the direction of the self-destruction joint rod piece 511a, the push cylinder sealing soft cover 125a will not be clamped above the self-destruction joint rod piece 511a, and the push cylinder sealing soft cover 125a will ensure to generate enough pushing force path against the inclined pressing portion 6a to swing obliquely, so as to push the integral functional combination 2a to swing obliquely in the syringe 11a, otherwise, if the push cylinder sealing soft cover 125a is clamped, the push cylinder sealing soft cover 125a will not generate enough pushing force path to swing obliquely, so as to cause the functional defect of the inclined pressing portion 6a, and when the integral functional combination 2a swings obliquely, the needle 9a is driven to swing obliquely in the syringe 11a to make the needle 9a deviate from the outlet 112a of the syringe, and the tip of the needle 9a moves to align with the inclined needle limiting portion 114a, so that the needle 9a can be retracted into the syringe 11a to prevent the danger of touching other people, and when someone wants to push the push tube 12a to push the needle 9a out again, the needle 9a will be abutted and limited on the inclined needle limiting portion 114a without passing through the outlet 112a of the syringe, so that the needle 9a can be completely accommodated in the syringe 11a to increase the overall safety again, but the limitation is not set.
Referring to fig. 10 to 12, the third embodiment of the present invention is illustrated in exploded view to a schematic view of the separation, as can be clearly seen from the drawings, the present embodiment is different from the above embodiments, the self-destruction device 5b further includes a self-destruction warning portion 126b defined on the pushing cylinder 12b, the injection needle 1b defines a needle operating device 13b, the needle operating device 13b includes a pushing cylinder operating portion 131b disposed on the pushing cylinder 12b and at least one syringe operating portion 132b disposed on the syringe 11b, when the user sucks or injects a liquid medicine, the user can touch the pushing cylinder operating portion 131b and the syringe operating portion 132b respectively to drive the pushing cylinder 12b to move in the syringe 11b, and when the self-destruction engaging component 51b and the self-destruction positioning component 52b are combined, the position of the self-destruction warning portion 126b corresponds to the syringe operating portion 132b, this alerts the user that the self-destruction engagement element 51b and the self-destruction positioning element 52b are about to be combined with self-destruction, but it is not limited thereto.
In the present embodiment, a syringe engaging and disengaging guide 321b is defined at the side of the syringe engaging and disengaging portion 32b, a combination engaging and disengaging guide 311b is defined at the side of the combination engaging and disengaging portion 31b, the syringe engaging and disengaging guide 321b is an inclined surface formed on the syringe engaging and disengaging portion 32b, and the combination engaging and disengaging guide 311b is an inclined surface formed on the combination engaging and disengaging portion 31b, so that the overall functional combination 2b can be disengaged from the syringe 11b more smoothly by guiding the syringe engaging and disengaging guide 321b and the combination engaging and disengaging guide 311b with each other, but the present invention is not limited thereto.
Referring to fig. 13 to 15, the fourth embodiment of the present invention is illustrated in exploded view to a schematic broken view, and it is clearly seen from the drawings that the present embodiment is similar to the above embodiments, in the present embodiment, a needle separation preventing device 14c is defined on the injection needle 1c, the needle separation preventing device 14c includes a needle separation preventing limiting portion 141c defined on the needle cylinder 11c, and a pushing cylinder separation preventing limiting portion 142c defined on the pushing cylinder 12c, and a needle separation preventing combination guiding portion 1411c is defined at a side of the needle separation preventing limiting portion 141c, and a pushing cylinder separation preventing combination guiding portion 1421c is defined at a side of the pushing cylinder separation preventing limiting portion 142c, and the needle separation preventing combination guiding portion 1411c and the pushing cylinder separation preventing combination guiding portion 1421c are inclined planes formed on the needle cylinder separation preventing limiting portion 141c and the pushing cylinder separation preventing limiting portion 142c respectively, and a pusher cutout portion 127c is defined on the pusher 12c, but it is not limited thereto.
When the pushing cylinder 12c is going to enter the syringe 11c, the pushing cylinder 12c can smoothly enter the syringe 11c by the guiding function of the syringe anti-disengagement assembly guiding portion 1411c and the pushing cylinder anti-disengagement assembly guiding portion 1421c, and after the injection is completed and the pushing cylinder 12c and the integral functional combination 2c are combined by the self-destruction device 5c, the user will pull the pushing cylinder 12c to enter the integral functional combination 2c and the needle 9c into the syringe 11c, and at this time, the pushing cylinder anti-disengagement limiting portion 142c will be pressed against the syringe anti-disengagement limiting portion 141c, so as to prevent others from completely taking out the pushing cylinder 12c for reuse, and at the same time, the pushing cylinder 12c can be broken at the pushing cylinder cut portion 127c, so that the pushing cylinder 12c can produce an irreversible disposable use effect, completely preventing others from reusing the injection needle 1c, but it is not limited.
Referring to fig. 16, it is a front view of the fifth embodiment of the present invention, as can be clearly seen from the figure, this embodiment is different from the above embodiments in that a needle cover 91d is combined with the needle 9d in this embodiment, so as to prevent the needle 1d from being touched by others before use, so as to enhance the protection effect, and a needle mark encoding portion 115d is defined on the needle 1d, so that a user can observe the amount of the injection liquid during injection, so as to improve the convenience of use, and the needle mark encoding portion 115d can encode the injection needle 1d besides displaying the amount of the liquid medicine, such as printing a as a number, so as to improve the quick tracking when the injection needle 1d is defective or bad, but not limited.
However, the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that the simple modifications and equivalent structural changes made by the contents of the specification and drawings should be included in the scope of the present invention.
Therefore, the utility model discloses a self-destruction is drawn and is contracted safety protection needle can improve current technical key and lie in:
after the self-destruction device 5 makes the pushing cylinder 12 inject the liquid medicine, the self-destruction effect can be achieved actively, so as to prevent other people from using the disposable injection needle 1 continuously.
The integrated functional combination 2 and the needle 9 can be pulled into the syringe 11 after the user finishes the injection by using the clamping and releasing device 3, so as to prevent the needle 9 from remaining outside and causing danger.
The needle head 9a can be completely retained in the syringe 11a through the inclined pressing portion 6a, and the needle head 9a is also abutted and limited on the inclined needle head limiting portion 114a, and will not be pushed out of the outlet portion 112a of the syringe, so the needle head 9a can be completely retracted into the syringe 11a, so as to achieve the effect of irreversible self-destruction and increase the overall safety.
When the needle 9 is locked on the combination combining part 21, the syringe limiting and stopping part 42 and the combination limiting and stopping part 41 in the limiting and stopping device 4 will interfere with each other to prevent the whole functional combination 2 from rotating in the syringe 11, and the needle 9 can be tightly locked on the combination combining part 21 to prevent leakage.
The push cylinder sealing soft sleeve positioning resetting part 124a is used to prevent the push cylinder sealing soft sleeve 125a from being clamped above the self-destruction joint rod piece 511a and being unable to reset, and the push cylinder sealing soft sleeve 125a generates an excellent positioning effect and ensures that the push cylinder sealing soft sleeve can still return to the original position after moving, so that the push cylinder sealing soft sleeve 125a ensures that enough pushing force is generated to collide with the inclined pressing part 6a for performing an inclined swinging action.
Claims (21)
1. A self-destruction, pulling and shrinking safety protection needle is characterized by comprising:
an injection needle device, which comprises a needle cylinder and a push cylinder movably arranged at one end of the needle cylinder;
a syringe inlet defined at one end of the syringe;
a syringe outlet part, which is defined at one end of the syringe departing from the syringe inlet part and is used for the push cylinder to be movably arranged at the syringe outlet part;
at least one card-off choke part which is defined in the syringe and is positioned at the side adjacent to the outlet part of the syringe;
a syringe combination receiving area defined in the syringe and located adjacent to the outlet portion of the syringe;
at least one push cylinder sealing soft sleeve joint part, wherein the push cylinder sealing soft sleeve joint part is defined on the push cylinder;
at least one push cylinder piston part, which is defined on the push cylinder and is positioned at one side of the joint part of the push cylinder sealing soft sleeve;
the push cylinder sealing soft sleeve is positioned on the push cylinder through the combination of the push cylinder sealing soft sleeve and the push cylinder piston part;
the integral function combination body is positioned at the side of the outlet part of the needle cylinder;
at least one combination body combining part which is defined on the overall function combination body and is used for combining a needle;
a combined body liquid outlet defined on the integral functional combined body;
a needle cylinder, a needle cylinder combined body and a needle cylinder combined body, wherein the needle cylinder combined body is provided with a needle cylinder clamping and releasing part and a needle cylinder clamping and releasing part;
a limit stop device, which is arranged between the integral function combination and the needle cylinder and comprises at least one needle cylinder limit stop part defined on the needle cylinder clamping and releasing part and at least one combination limit stop part defined on the combination clamping and releasing part, so that the integral function combination and the needle cylinder can relatively limit and rotate;
a self-destruction device, which is defined between the pushing cylinder and the integral function combination body and comprises a self-destruction joint component defined on the pushing cylinder and a self-destruction positioning component defined on the integral function combination body, wherein the self-destruction joint component comprises at least one self-destruction joint rod piece connected on the pushing cylinder and a self-destruction joint rod hooking part formed at the end of the self-destruction joint rod piece, and the self-destruction positioning component comprises a self-destruction positioning through hole part formed on the integral function combination body and at least one self-destruction positioning hooking part formed at the side of the self-destruction positioning through hole part; and
and the airtight device is defined on the integral functional combination body and comprises at least one airtight ring piece combination part formed on the integral functional combination body and at least one airtight elastic ring piece combined on the airtight ring piece combination part.
2. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the self-destruction device also comprises at least one self-destruction warning part defined on the push cylinder.
3. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the self-destruction joint component also comprises a self-destruction joint rod elbow part and a self-destruction joint rod expansion part which are all defined at the side of the self-destruction joint rod piece.
4. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the self-destruction positioning component also comprises at least one self-destruction positioning guide part positioned at the side of the self-destruction positioning hook card part.
5. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the self-destruction positioning assembly further comprises at least one self-destruction positioning contraction and expansion guide part positioned at the side of the self-destruction positioning perforation part.
6. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the airtight device also comprises at least one airtight elastic ring anti-falling part positioned at the side of the airtight ring joint part.
7. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: a combined correcting and guiding device is defined between the integrated function combination body and the needle cylinder, and the combined correcting and guiding device comprises at least one combination correcting and guiding part defined on the integrated function combination body.
8. The self-destruct, telescopic safety shield needle as recited in claim 7, further comprising: the combined correcting and guiding device also comprises at least one syringe correcting and guiding part defined on the syringe.
9. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the syringe needle is defined with a needle anti-disengaging device which comprises at least one syringe anti-disengaging limiting part defined on the syringe and at least one push cylinder anti-disengaging limiting part defined on the push cylinder.
10. The self-destruct, telescopic safety shield needle as recited in claim 9, further comprising: the needle anti-disengaging device also comprises at least one syringe anti-disengaging combined guide part defined on the syringe anti-disengaging limiting part.
11. The self-destruct, telescopic safety shield needle as recited in claim 9, further comprising: the needle anti-disengaging device also comprises at least one push cylinder anti-disengaging combined guide part defined on the push cylinder anti-disengaging limiting part.
12. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the needle is provided with a needle cover.
13. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the syringe needle is defined with a needle operating device, and the needle operating device comprises at least one push cylinder operating part arranged on the push cylinder and at least one syringe operating part arranged on the syringe.
14. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the push cylinder is defined with at least one push cylinder cut-out portion.
15. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the push cylinder is defined with at least one push cylinder sealing soft sleeve combined guide part.
16. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the injection needle has at least one needle marking code portion defined thereon.
17. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the needle cylinder clamping and releasing device also comprises at least one needle cylinder clamping and releasing guide sliding part which is defined at the needle cylinder clamping and releasing part side.
18. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the releasing device also includes at least one combined body releasing guiding sliding part defined at the combined body releasing part side.
19. The self-destruct, telescopic safety shield needle as recited in claim 1, further comprising: the integral function combination body is defined with an inclined pressing part.
20. The self-destructing, pulling and retracting safety shield needle as recited in claim 19, further comprising: the barrel defines at least one angled needle restraining portion thereon.
21. The self-destructing, pulling and retracting safety shield needle as recited in claim 19, further comprising: at least one push cylinder sealing soft sleeve positioning resetting part is defined at the side of the push cylinder sealing soft sleeve combining part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915455.0U CN211986545U (en) | 2019-11-07 | 2019-11-07 | Self-destruction, pulling and shrinking safety protection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915455.0U CN211986545U (en) | 2019-11-07 | 2019-11-07 | Self-destruction, pulling and shrinking safety protection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211986545U true CN211986545U (en) | 2020-11-24 |
Family
ID=73411859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921915455.0U Active CN211986545U (en) | 2019-11-07 | 2019-11-07 | Self-destruction, pulling and shrinking safety protection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211986545U (en) |
-
2019
- 2019-11-07 CN CN201921915455.0U patent/CN211986545U/en active Active
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