CN110384845A - A kind of safety type multiple-head type injection needle - Google Patents
A kind of safety type multiple-head type injection needle Download PDFInfo
- Publication number
- CN110384845A CN110384845A CN201910770570.1A CN201910770570A CN110384845A CN 110384845 A CN110384845 A CN 110384845A CN 201910770570 A CN201910770570 A CN 201910770570A CN 110384845 A CN110384845 A CN 110384845A
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- China
- Prior art keywords
- screw thread
- cavity
- needle
- seat
- wire
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3298—Needles arranged in parallel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
Abstract
A kind of safety type multiple-head type injection needle, comprising: needle stand is equipped with cavity and needle tubing fixation hole；Needle tubing is fixed on needle stand；Distributary base is set in the cavity of needle stand, is equipped with through-hole, the upper end of needle tubing is penetrated in through-hole；Cone seat is equipped with channel, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom and is set in the cavity of needle stand, and the top of bottom and distributary base mutually assembles and surrounds cavity；Negative pressure seat, is set in outside needle stand, interior to be equipped with diaphragm plate, and diaphragm plate limits needle stand downlink, and diaphragm plate is equipped with needle tubing through hole；And adjustment seat, it is set in the middle part of cone seat and the top of negative pressure seat, is equipped in centre bore and centre bore and is equipped with two-wire internal screw thread, two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat.The present invention is adjustable the length of needle tubing stretching, with the alarm function before self-destroying function and self-destruction.Overall volume is small, cooperates that compact, fitness is high between component, can disposably be completed.
Description
Technical field
The present invention relates to injector technology field, in particular to a kind of safety type multiple-head type injection needle.
Background technique
In existing safety type multiple-head type injection needle, the structure between each component is not firm enough, can not adjust needle tubing stretching
Length, and need to redesign disposable self-distruction structure.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of safety type multiple-head type injection needle.
The purpose of the present invention can be realized by following technical proposals:
First technical solution of the invention is: a kind of safety type multiple-head type injection needle, comprising: needle stand is equipped with top surface opening
Cavity and the needle tubing fixation hole being connected to cavity bottom surface；Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；It shunts
Seat, is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；Cone seat is set
There is the top perforative channel in bottom, middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, and bottom is set to the recessed of needle stand
Intracavitary, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread include the first external screw thread and
Second external screw thread, the warning protrusion are set to the first external screw thread and second and externally threaded most play between circle and close to the second outer spiral shell
The lower end of line is arranged, and the self-destruction protrusion is set at the externally threaded lower end of two-wire and circumferentially, one end of self-destruction protrusion
It is connect with the second externally threaded lower end, the other end of self-destruction protrusion is equipped with stop surface, the through-hole and cone of the cavity and distributary base
The channel connection of seat；Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the cross
Partition limits needle stand downlink, and diaphragm plate is equipped with needle tubing through hole；And adjustment seat, it is set in middle part and the negative pressure seat of cone seat
Top, be in lid shape, be equipped in centre bore and centre bore and be equipped with two-wire internal screw thread, in the two-wire internal screw thread and cone seat
The two-wire external screw thread in portion matches, two-wire internal screw thread include the first internal screw thread and the second internal screw thread, first internal screw thread it is upper
The notch that end part is axially arranged by one separates into two parts.
Further, the two-part upper edge of the first internal screw thread upper end of the two-wire internal screw thread is equipped with wave point.
Second technical solution of the invention is: a kind of safety type multiple-head type injection needle, comprising: needle stand is opened equipped with top surface
The cavity of mouth and the needle tubing fixation hole being connected to cavity bottom surface；Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；Cone seat,
It is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, and bottom is set to needle stand
Cavity in, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread include the first outer spiral shell
Line and the second external screw thread, the warning protrusion are set to the first external screw thread and second and externally threaded most play between circle and close to second
Externally threaded lower end setting, the self-destruction protrusion are set at the externally threaded lower end of two-wire and relative to the externally threaded trend of two-wire
Bending, the thread groove end connection corresponding with the second externally threaded lower end and the second external screw thread lower end of one end of self-destruction protrusion, from
There is distance on the surface ruined in the middle part of the other end to cone seat of protrusion, and the cavity is connected to the channel of the through-hole of distributary base and cone seat；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is under needle stand
Row limit, diaphragm plate are equipped with needle tubing through hole；And adjustment seat, it is set in the middle part of cone seat and the top of negative pressure seat, is in
Lid shape is equipped in centre bore and centre bore and is equipped with two-wire internal screw thread, outside the two-wire in the middle part of the two-wire internal screw thread and cone seat
Screw thread matches, and two-wire internal screw thread includes the first internal screw thread and the second internal screw thread, and the upper part of first internal screw thread is by one
The notch being axially arranged separates into two parts.
Further, the two-part upper edge of the first internal screw thread upper end of the two-wire internal screw thread is equipped with wave point, and first
The upper end of internal screw thread is equipped with inclined-plane.
Third technical solution of the invention is: a kind of safety type multiple-head type injection needle, comprising: needle stand is opened equipped with top surface
The cavity of mouth and the needle tubing fixation hole being connected to cavity bottom surface；Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；Cone seat,
It is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, and bottom is set to needle stand
Cavity in, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread include the first outer spiral shell
Line and the second external screw thread, the warning protrusion are set to the first external screw thread and second and externally threaded most play between circle and close to second
Externally threaded lower end setting, the self-destruction protrusion most play the lower edge of circle to connect with the first external screw thread, and self-destruction protrusion is set to second
Outside the corresponding thread groove end in external screw thread lower end, self-destruction protrusion is downwardly convex, the through-hole and cone seat of the cavity and distributary base
Channel connection；Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate
Needle stand downlink is limited, diaphragm plate is equipped with needle tubing through hole；And adjustment seat, it is set in the middle part of cone seat and the top of negative pressure seat
Portion is in lid shape, is equipped in centre bore and centre bore and is equipped with two-wire internal screw thread, in the middle part of the two-wire internal screw thread and cone seat
Two-wire external screw thread matches, and two-wire internal screw thread includes the first internal screw thread and the second internal screw thread, the upper end of first internal screw thread
The notch being axially arranged by one is divided to separate into two parts.
Further, the two-part upper edge of the first internal screw thread upper end of the two-wire internal screw thread is equipped with wave point.
4th technical solution of the invention is: a kind of safety type multiple-head type injection needle, comprising: needle stand is opened equipped with top surface
The cavity of mouth and the needle tubing fixation hole being connected to cavity bottom surface；Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；Cone seat,
It is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, and bottom is set to needle stand
Cavity in, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread include the first outer spiral shell
Line and the second external screw thread, the warning protrusion are set to the first external screw thread and second and externally threaded most play between circle and close to second
Externally threaded lower end setting, the self-destruction protrusion are connect with the second externally threaded lower end, and self-destruction protrusion is resilient suspension, the cone
The correspondence self-destruction high spot indent at seat middle part, the cavity are connected to the channel of the through-hole of distributary base and cone seat；Negative pressure seat, suit
It in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate limits needle stand downlink, tabula
Plate is equipped with needle tubing through hole；And adjustment seat, it is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, sets
Having and is equipped with two-wire internal screw thread in centre bore and centre bore, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat,
Two-wire internal screw thread includes the first internal screw thread and the second internal screw thread, the slot that the upper part of first internal screw thread is axially arranged by one
Mouth partition is at two parts.
Further, the two-part upper edge of the first internal screw thread upper end of the two-wire internal screw thread is equipped with wave point, and first
The upper end of internal screw thread is equipped with inclined-plane.
5th technical solution of the invention is: a kind of safety type multiple-head type injection needle, comprising: needle stand is opened equipped with top surface
The cavity of mouth and the needle tubing fixation hole being connected to cavity bottom surface；Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；Cone seat,
It is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, and bottom is set to needle stand
Cavity in, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread include the first outer spiral shell
Line and the second external screw thread, the warning protrusion are set to the first external screw thread and second and externally threaded most play between circle and close to second
Externally threaded lower end setting, the self-destruction protrusion and the most lower circle of the first external screw thread connect, and self-destruction protrusion is set to the second external screw thread
The corresponding thread groove end in lower end, self-destruction protrusion in up-side down triangle and downwardly convex, the through-hole of the cavity and distributary base and
The channel of cone seat is connected to；Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior equipped with diaphragm plate, described
Diaphragm plate limits needle stand downlink, and diaphragm plate is equipped with needle tubing through hole；And adjustment seat, it is set in middle part and the negative pressure of cone seat
The top of seat is in lid shape, is equipped in centre bore and centre bore and is equipped with two-wire internal screw thread, the two-wire internal screw thread and cone seat
The two-wire external screw thread at middle part matches, and two-wire internal screw thread includes the first internal screw thread and the second internal screw thread, first internal screw thread
The notch that upper part is axially arranged by one separates into two parts.
Further, the two-part upper edge of the first internal screw thread upper end of the two-wire internal screw thread is equipped with wave point, and first
The upper end of internal screw thread is equipped with inclined-plane.
Compared with prior art, needle stand, needle tubing, distributary base, cone seat, negative pressure seat and tune beneficial effects of the present invention: are used
Seat composition is saved, the length of needle tubing stretching is adjustable, with the alarm function before self-destruction, design there are a variety of knots for realizing self-destroying function
Structure.Entire small product size is small, cooperates that compact, fitness is high between component, can disposably be completed.
Detailed description of the invention
Fig. 1 is the overall schematic of the embodiment of the present invention 1.
Fig. 2 is the cross-sectional view of the embodiment of the present invention 1.
Fig. 3 is the decomposition diagram of the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of the needle stand in the embodiment of the present invention 1.
Fig. 5 is the cross-sectional view of the needle stand in the embodiment of the present invention 1.
Fig. 6 is a structural schematic diagram of the distributary base in the embodiment of the present invention 1.
Fig. 7 is another structural schematic diagram of the distributary base in the embodiment of the present invention 1.
Fig. 8 is a structural schematic diagram of the cone seat in the embodiment of the present invention 1.
Fig. 9 is another structural schematic diagram of the cone seat in the embodiment of the present invention 1.
Figure 10 is a structural schematic diagram of the negative pressure seat in the embodiment of the present invention 1.
Figure 11 is another structural schematic diagram of the negative pressure seat in the embodiment of the present invention 1.
Figure 12 is the cross-sectional view of the negative pressure seat in the embodiment of the present invention 1.
Figure 13 is a structural schematic diagram of the adjustment seat in the embodiment of the present invention 1.
Figure 14 is another structural schematic diagram of the adjustment seat in the embodiment of the present invention 1.
Figure 15 be the embodiment of the present invention 1 in needle stand, needle tubing, distributary base, cone seat assembling schematic diagram.
Figure 16 is the assembly signal of the needle stand, needle tubing, distributary base, cone seat, negative pressure seat and adjustment seat in the embodiment of the present invention 1
Figure.
Figure 17 is schematic diagram of the embodiment of the present invention 1 in normal use.
Figure 18 is the embodiment of the present invention 1 from normal operating condition to the schematic diagram of self-destruction state.
Figure 19 is the structural schematic diagram of the cone seat in the embodiment of the present invention 2.
Figure 20 is the embodiment of the present invention 2 from normal operating condition to the schematic diagram of self-destruction state.
Figure 21 is a structural schematic diagram of the adjustment seat in the embodiment of the present invention 2.
Figure 22 is the structural schematic diagram of the cone seat in the embodiment of the present invention 3.
Figure 23 is the embodiment of the present invention 3 from normal operating condition to the schematic diagram of self-destruction state.
Figure 24 is the structural schematic diagram of the cone seat in the embodiment of the present invention 4.
Figure 25 is the embodiment of the present invention 4 from normal operating condition to the schematic diagram of self-destruction state.
Figure 26 is the structural schematic diagram of the cone seat in the embodiment of the present invention 5.
Figure 27 is the embodiment of the present invention 5 from normal operating condition to the schematic diagram of self-destruction state.
Part numbers are as follows in figure:
1 needle stand
101 cavitys
102 limited steps
103 guiding ribs
104 first reverse tapers
105 needle tubing fixation holes
2 needle tubings
3 distributary bases
301 through-holes
302 flow guiding dummy clubs
303 positioning steps
304 first guide grooves
4 cone seats
401 channels
402 two-wire external screw threads
4021 first external screw threads
4022 second external screw threads
403 warning protrusions
404 self-destructions protrusion
405 diversion grooves
406 location holes
407 locating slots
408 second guide grooves
5 negative pressure seats
501 button bits
502 diaphragm plates
503 boss
504 second reverse tapers
505 needle tubing through holes
506 suction connectors
6 adjustment seats
601 centre bores
602 two-wire internal screw threads
6021 first internal screw threads
60211 inclined-planes
6022 second internal screw threads
603 notches
604 wave points
605 fixed card buckles.
Specific embodiment
Below in conjunction with the attached drawing specific embodiment that the present invention will be described in detail, those skilled in the art is made to become apparent from geography
How solution practices the present invention.Although describing the present invention in conjunction with its preferred embodiment, these embodiments are
It illustrates, is not intended to limit the scope of the invention.
Embodiment 1
Fig. 1 to Fig. 3 show a kind of safety type multiple-head type injection needle of the present embodiment, including needle stand 1, needle tubing 2, distributary base 3, cone seat
4, negative pressure seat 5 and adjustment seat 6.
Referring to fig. 4 and Fig. 5, the needle stand 1 are the block shape of rounded square in cross section, are equipped with top surface in needle stand 1 and are open
Cavity 101, the bottom surface of the cavity 101 is equipped with 2 guiding circumferentially arranged with a circle limited step 102, the side wall of cavity 101
103,2 guiding ribs 103 of muscle are arranged symmetrically and axially extend in 180 ° along the axis of cavity 101, the bottom surface of needle stand 1
9 the first reverse tapers 104 are distributed with along center array, each first reverse taper 104 is equipped with the needle tubing of back taper along axis
Fixation hole 105, the needle tubing fixation hole 105 are connected to cavity 101.
The quantity of the needle tubing 2 is 3 or more, and for the present embodiment by taking 9 needle tubings 2 as an example, 9 needle tubings 2 are recessed by needle stand 1
After chamber 101, free-falling then passes through environmental protection to design height from the needle tubing fixation hole 105 of 9 the first reverse tapers 104 respectively
Quick setting cement is fixed.
The distributary base 3 is set in the cavity 101 of needle stand 1 and its bottom surface and limited step 102 cooperate.Referring to Fig. 6 and
Fig. 7, the distributary base 3 are the thin bulk of rounded square, the cross of the cavity 101 of the cross section and needle stand 1 of distributary base 3 in cross section
Section matches, distributary base 3 along axial array be distributed with 9 axially extending 301,9 through-holes 301 of through-hole respectively with needle stand 1
9 the first reverse tapers 104 it is corresponding, the upper end of 9 needle tubings is respectively without interferingly wearing into 9 through-holes 301.Distributary base 3
Top surface is equipped with 8 flow guiding dummy clubs, 302,8 flow guiding dummy clubs 302 and radiates distribution around along the end face center of distributary base 3, and 8
The whole center of a flow guiding dummy club 302 and 8 ends are connect with 9 through-holes respectively, and the top surface of distributary base 3 is equipped with a delineation along side
Position step 303, the side of distributary base 3 are equipped with 2 the first guide grooves, 304,2 first guide grooves 304 along the axis of distributary base 3
Line is arranged symmetrically in 180 °, and 2 first guide grooves 304 are matched with 2 guiding ribs 103 of needle stand 1 respectively.
The bottom of the cone seat 4 is set in the cavity 101 of needle stand 1 and assembles with 3 phase of distributary base.Referring to Fig. 8 and Fig. 9,
The cone seat 4 is equipped with channel 401 along axis, and the top and middle part of cone seat 4 are in the form of a column, and is equipped with outside two-wire on the outside of the middle part of cone seat 4
Screw thread 402, warning protrusion 403 and self-destruction protrusion 404, the two-wire external screw thread 402 include outside the first external screw thread 4021 and second
Screw thread 4022, the warning protrusion 403 are set to most playing between circle and leaning on for the first external screw thread 4021 and the second external screw thread 4022
The lower end of nearly second external screw thread 4022 is arranged, and the self-destruction protrusion 404 is set under the two-wire external screw thread 402 at 4 middle part of cone seat
At end and circumferentially it is arranged, one end of self-destruction protrusion 404 is connect with the lower end of the second external screw thread 4022, self-destruction protrusion 404
The other end be equipped with vertical stop surface, the section of self-destruction protrusion 404 is identical as the section of the second external screw thread 4022.Cone seat 4
Bottom is the thin bulk of rounded square, the cross section phase of the cavity 101 of the cross section and needle stand 1 of 4 bottom of cone seat in cross section
Match, the bottom surface of 4 bottom of cone seat is equipped with 8 diversion grooves, 405,8 diversion grooves 405 along the bottom center of 4 bottom of cone seat
Radiation distribution around, 8 diversion grooves 405 are corresponding with 8 flow guiding dummy clubs 302 of distributary base 3 respectively, 8 diversion grooves
405 one end is connected to channel 401, and the other end of 8 diversion grooves 405 is equipped with location hole 406, the bottom surface of 4 bottom of cone seat
The locating slot 407 that matches with the positioning step 303 of distributary base 3 of circle is equipped with along side, and the side of 4 bottom of cone seat is equipped with 2 the
Two second guide grooves 408 of guide groove 408,2 are arranged symmetrically along the axis of cone seat 4 in 180 °, 2 second guide grooves
408 match with 2 guiding ribs 103 of needle stand 1 respectively.
The negative pressure seat 5 is placed on outside needle stand 1.Referring to Figure 10 to Figure 12, what the negative pressure seat 5 was open in top and bottom
Cylinder-shaped, the circular in cross-section at the top of negative pressure seat 5, the top exterior walls of negative pressure seat 5 are born circumferentially arranged with a circle button bit 501
The middle part of wedge 5 and the cross section of bottom are rounded rectangular, and diaphragm plate 502, the diaphragm plate are equipped in the middle part of negative pressure seat 5
9 first that 4 circular boss, 503,4 boss 503 are set to needle stand 1 are distributed with along center array for 502 top surface
In gap between reverse taper 104, the bottom surface of diaphragm plate 502 is distributed with described in 9 the second reverse tapers 504,9 along center array
Second reverse taper 504 is corresponding with 9 the first reverse tapers 104 of needle stand 1 respectively, the lower end of each second reverse taper 504 and negative
The bottom surface of wedge 5 flushes, and the second reverse taper 504 is equipped with the needle tubing through hole 505 of back taper, the needle tubing through hole along axis
505 accommodate and support the first reverse taper 104 of needle stand 1, while the lower end of needle tubing 2 is pierced by from needle tubing through hole 505, negative pressure seat 5
Middle part of sliding channel be equipped with suction connector 506, the space of the lower section of diaphragm plate 502 in the suction connector 506 and negative pressure seat 5
Connection.
The adjustment seat 6 is placed on the middle part of cone seat 4 and the top of negative pressure seat 5.Referring to Figure 13 and Figure 14, the adjustment seat 6
In lid shape, adjustment seat 6 is equipped with centre bore 601 along axis, and the centre bore 601 is equipped with the two-wire external screw thread with 4 middle part of cone seat
The 402 two-wire internal screw threads 602 matched, the two-wire internal screw thread 602 include the first internal screw thread 6021 and the second internal screw thread 6022,
The partition of notch 603 that the upper part of first internal screw thread 6021 is axially arranged by one at two parts, it is two-part on along equal
Equipped with wave point 604, wave point 604 plays the role of adjusting Screw Thread Fit Clearance, main to eliminate uplink and downlink gap, is not influencing screw thread just
It often screws and is conducive to fabricate size Control, the medial surface of adjustment seat 6 is distributed along the circumference with 2 or more fixed card buckles
501 axial limiting of button bit at 605,2 or more 5 tops of the fixed card buckle 605 and negative pressure seat cooperates.
When assembly, referring to Figure 15, needle tubing 2 is fixed in the needle tubing fixation hole 105 of needle stand 1 by environmentally friendly quick setting cement, point
Stream seat 3 first passes through positioning step 303 with cone seat 4 and mutually assembles with the cooperation of locating slot 407, the top surface of distributary base 3 and the bottom surface of cone seat 4
Between surround cavity, distributary base 3 and cone seat 4 leading by the first guide groove 304 and the second guide groove 408 and needle stand 1 respectively again
It is oriented to and cooperates to muscle 103, be packed into the cavity 101 of needle stand 1 together, the upper end of needle tubing 2 is without interferingly wearing to the through-hole of distributary base 3
In 301；Referring to Figure 16, the needle stand 1 assembled, needle tubing 2, distributary base 3, cone seat 4 are packed into negative pressure seat 5, adjustment seat 6 is placed on cone
The two-wire external screw thread 402 at 4 middle part of seat and the top of negative pressure seat 5,4 middle part of two-wire internal screw thread 602 and cone seat of adjustment seat 6 matches
It closes, adjustment seat 6 is mutually assembled by fixed card buckle 605 with the cooperation of 501 axial limiting of button bit with negative pressure seat 5.
When normal use, referring to Figure 17, adjustment seat 6 is rotated clockwise, due to the two-wire internal screw thread 602 and cone of adjustment seat 6
The two-wire external screw thread 402 at 4 middle part of seat cooperates, and adjustment seat 6 pushes cone seat 4 to move axially downwards, and cone seat 4 drives 3 He of distributary base
Needle tubing 2 moves downwardly together, and needle tubing 2 is extended downwardly from negative pressure seat 5.
Safety formula multiple-head type injection needle has self-destructed function, accidentally directly destroys certainly when to prevent clinical use,
Warning protrusion 403 in cone seat 4 plays the warning function before self-destruction.Referring to Figure 18, adjustment seat 6 is rotated counterclockwise, due to adjusting
The two-wire external screw thread 402 at 4 middle part of two-wire internal screw thread 602 and cone seat of seat 6 cooperates, and adjustment seat 6 pushes cone seat 4 to transport axially upward
Dynamic, cone seat 4 drives distributary base 3 and needle tubing 2 to move upwardly together.When the upper end of the first internal screw thread 6021 of two-wire internal screw thread 602
Before sliding through the 404 realization self-destruction of self-destruction protrusion at 4 middle part of cone seat, the notch 603 on the first internal screw thread 6021 can interfere cone seat 4
The warning protrusion 403 at middle part, to play a warning role.When the upper end sliding of the first internal screw thread 6021 of two-wire internal screw thread 602
After self-destruction protrusion 404 by 4 middle part of cone seat, attempt to rotate clockwise adjustment seat 6, the upper end meeting of the first internal screw thread 6021 at this time
It is blocked by the other end of self-destruction protrusion 404, two-wire internal screw thread 602 can not circle round to two-wire external screw thread 402, and adjustment seat 6 is also with regard to nothing
Method resets, and safety type multiple-head type injection needle enters self-destruction state, can not reuse.
Embodiment 2
4 middle part of cone seat is essentially consisted in place of a kind of safety type multiple-head type injection needle of the present embodiment, with the difference of above-described embodiment
The structure of self-destruction protrusion 404.
Referring to Figure 19, the self-destruction protrusion 404 is set at the lower end of the two-wire external screw thread 402 at 4 middle part of cone seat and opposite
In the bending of moving towards of two-wire external screw thread 402, the lower end and the second external screw thread of one end of self-destruction protrusion 404 and the second external screw thread 4022
There is distance on the surface of the corresponding thread groove end connection in 4022 lower ends, the other end to 4 middle part of cone seat of self-destruction protrusion 404.
When realizing the self-destroying function of safety type multiple-head type injection needle, adjustment seat 6 is rotated counterclockwise.Referring to fig. 20, when double
After the upper end of first internal screw thread 6021 of line internal screw thread 602 slides through the self-destruction protrusion 404 at 4 middle part of cone seat, attempt at this time suitable
Hour hands rotate adjustment seat 6, and the upper end of the first internal screw thread 6021 can be blocked by the other end of self-destruction protrusion 404, two-wire internal screw thread 602
It can not circle round to two-wire external screw thread 402, adjustment seat 6 also can not just reset, and can only carry out suitable, non-threaded rotation counterclockwise, safety
Formula multiple-head type injection needle enters self-destruction state, can not reuse.
With the structure for the two-wire internal screw thread 602 for also residing in adjustment seat 6 in place of the difference of above-described embodiment.Referring to fig. 21, institute
The upper end for stating the first internal screw thread 6021 is equipped with inclined-plane 60211 and as guide surface, is suitable for the upper termination with the first internal screw thread 6021
Touching cooperation prevents the convolution of two-wire internal screw thread 602 to two-wire external screw thread 402.
Embodiment 3
It is the self-destruction at 4 middle part of cone seat in place of a kind of safety type multiple-head type injection needle of the present embodiment, with the difference of above-described embodiment
The structure of protrusion 404.
Referring to fig. 22, the self-destruction protrusion 404 and the first external screw thread 4021 of two-wire external screw thread 402 most play the lower edge of circle to connect
It connects, and is set to outside the corresponding thread groove end in 4022 lower end of the second external screw thread, self-destruction protrusion 404 is downwardly convex.
When realizing the self-destroying function of safety type multiple-head type injection needle, adjustment seat 6 is rotated counterclockwise.Referring to fig. 23, when double
After the upper end of first internal screw thread 6021 of line internal screw thread 602 slides through the lower end of two-wire external screw thread 402, due to self-destruction protrusion
404 pair of first internal screw thread 6021 pushes up downwards, so that two-wire internal screw thread 602 is ejected original track, can not circle round and enter to two-wire
External screw thread 402, adjustment seat 6 also can not just reset, and can only carry out suitable, non-threaded rotation counterclockwise, safety type multiple-head type injection needle
Into self-destruction state, can not reuse.
Embodiment 4
4 middle part of cone seat is essentially consisted in place of a kind of safety type multiple-head type injection needle of the present embodiment, with the difference of above-described embodiment
The structure of self-destruction protrusion 404.
Referring to fig. 24, the self-destruction protrusion 404 is connect with the lower end of the second external screw thread 4022 of two-wire external screw thread 402, oneself
The resilient suspension that protrusion 404 is hollow out is ruined, is squeezed without generating destruction, Z can be continuously maintained the validity of function, the cone
Indent at the correspondence self-destruction protrusion 404 at 4 middle part of seat.
When realizing the self-destroying function of safety type multiple-head type injection needle, adjustment seat 6 is rotated counterclockwise.Referring to fig. 25, when double
After the upper end of first internal screw thread 6021 of line internal screw thread 602 slides through the self-destruction protrusion 404 at 4 middle part of cone seat, attempt at this time suitable
Hour hands rotate adjustment seat 6, and the upper end of the first internal screw thread 6021 can be blocked by self-destruction protrusion 404, and two-wire internal screw thread 602 can not circle round
To two-wire external screw thread 402, adjustment seat 6 also can not just reset, and can only carry out suitable, non-threaded rotation counterclockwise, safety type multiple-head type
Injection needle enters self-destruction state, can not reuse.
The structure that the two-wire internal screw thread 602 of adjustment seat 6 is also resided in the difference place of embodiment 1 and 3, with embodiment 2
In it is identical, refer to Figure 21, here repeat no more.
Embodiment 5
4 middle part of cone seat is essentially consisted in place of a kind of safety type multiple-head type injection needle of the present embodiment, with the difference of above-described embodiment
The structure of self-destruction protrusion 404.
Referring to fig. 26, the most lower circle connection of the first external screw thread 4021 of the self-destruction protrusion 404 and two-wire external screw thread 402, and
It is set to the corresponding thread groove end in 4022 lower end of the second external screw thread, self-destruction protrusion 404 is in up-side down triangle and downwardly convex.From
2 inclined-planes for ruining protrusion 404 are used as guide surface, can avoid track and the extruding force of two-wire internal screw thread 602, prevent self-destruction raised
404 breakage, destruction or even disabler.
When realizing the self-destroying function of safety type multiple-head type injection needle, adjustment seat 6 is rotated counterclockwise.Referring to fig. 23, when double
After the upper end of first internal screw thread 6021 of line internal screw thread 602 slides through the self-destruction protrusion 404 at 4 middle part of cone seat, attempt at this time suitable
Hour hands rotate adjustment seat 6, and the upper end of the first internal screw thread 6021 can be blocked by self-destruction protrusion 404, and two-wire internal screw thread 602 can not circle round
To two-wire external screw thread 402, adjustment seat 6 also can not just reset, and can only carry out suitable, non-threaded rotation counterclockwise, safety type multiple-head type
Injection needle enters self-destruction state, can not reuse.
The structure that the two-wire internal screw thread 602 of adjustment seat 6 is also resided in the difference place of embodiment 1 and 3, with embodiment 2
With 4 in it is identical, refer to Figure 21, here repeat no more.
It should be pointed out that can also have the embodiment of a variety of transformation and remodeling for the present invention through absolutely proving,
It is not limited to the specific embodiment of above embodiment.Above-described embodiment as just explanation of the invention, rather than to this
The limitation of invention.In short, protection scope of the present invention should include that those are apparent to those skilled in the art
Transformation or substitution and remodeling.
Claims (10)
1. a kind of safety type multiple-head type injection needle characterized by comprising
Needle stand, the needle tubing fixation hole for being equipped with the cavity of top surface opening and being connected to cavity bottom surface；
Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；
Cone seat, is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom
It is set in the cavity of needle stand, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread packet
Include the first external screw thread and the second external screw thread, the warning protrusion is set to the first external screw thread and second and externally threaded most plays between circle
And close to the second externally threaded lower end setting, the self-destruction protrusion is set at the externally threaded lower end of two-wire and circumferentially,
One end of self-destruction protrusion is connect with the second externally threaded lower end, and the other end of self-destruction protrusion is equipped with stop surface, the cavity with point
The through-hole of stream seat is connected to the channel of cone seat；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is to needle
Seat downlink limit, diaphragm plate are equipped with needle tubing through hole；And
Adjustment seat is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, is equipped in centre bore and centre bore and sets
There is two-wire internal screw thread, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat, and two-wire internal screw thread includes in first
Screw thread and the second internal screw thread, the notch that the upper part of first internal screw thread is axially arranged by one separate into two parts.
2. safety type multiple-head type injection needle according to claim 1, which is characterized in that in the first of the two-wire internal screw thread
The two-part upper edge of threaded upper end is equipped with wave point.
3. a kind of safety type multiple-head type injection needle characterized by comprising
Needle stand, the needle tubing fixation hole for being equipped with the cavity of top surface opening and being connected to cavity bottom surface；
Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；
Cone seat, is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom
It is set in the cavity of needle stand, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread packet
Include the first external screw thread and the second external screw thread, the warning protrusion is set to the first external screw thread and second and externally threaded most plays between circle
And close to the second externally threaded lower end setting, the self-destruction protrusion be set at the externally threaded lower end of two-wire and relative to two-wire outside
Screw thread moves towards bending, one end of self-destruction protrusion thread groove end corresponding with the second externally threaded lower end and the second external screw thread lower end
End connects, and there is distance on the surface in the middle part of the other end to cone seat of self-destruction protrusion, the through-hole and cone seat of the cavity and distributary base
Channel connection；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is to needle
Seat downlink limit, diaphragm plate are equipped with needle tubing through hole；And
Adjustment seat is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, is equipped in centre bore and centre bore and sets
There is two-wire internal screw thread, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat, and two-wire internal screw thread includes in first
Screw thread and the second internal screw thread, the notch that the upper part of first internal screw thread is axially arranged by one separate into two parts.
4. safety type multiple-head type injection needle according to claim 3, which is characterized in that in the first of the two-wire internal screw thread
The two-part upper edge of threaded upper end is equipped with wave point, and the upper end of the first internal screw thread is equipped with inclined-plane.
5. a kind of safety type multiple-head type injection needle characterized by comprising
Needle stand, the needle tubing fixation hole for being equipped with the cavity of top surface opening and being connected to cavity bottom surface；
Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；
Cone seat, is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom
It is set in the cavity of needle stand, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread packet
Include the first external screw thread and the second external screw thread, the warning protrusion is set to the first external screw thread and second and externally threaded most plays between circle
And close to the second externally threaded lower end setting, the self-destruction protrusion most plays the lower edge of circle to connect with the first external screw thread, self-destruction protrusion
Be set to outside the corresponding thread groove end in the second external screw thread lower end, self-destruction protrusion is downwardly convex, the cavity and distributary base it is logical
Hole is connected to the channel of cone seat；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is to needle
Seat downlink limit, diaphragm plate are equipped with needle tubing through hole；And
Adjustment seat is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, is equipped in centre bore and centre bore and sets
There is two-wire internal screw thread, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat, and two-wire internal screw thread includes in first
Screw thread and the second internal screw thread, the notch that the upper part of first internal screw thread is axially arranged by one separate into two parts.
6. safety type multiple-head type injection needle according to claim 5, which is characterized in that in the first of the two-wire internal screw thread
The two-part upper edge of threaded upper end is equipped with wave point.
7. a kind of safety type multiple-head type injection needle characterized by comprising
Needle stand, the needle tubing fixation hole for being equipped with the cavity of top surface opening and being connected to cavity bottom surface；
Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；
Cone seat, is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom
It is set in the cavity of needle stand, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread packet
Include the first external screw thread and the second external screw thread, the warning protrusion is set to the first external screw thread and second and externally threaded most plays between circle
And close to the second externally threaded lower end setting, the self-destruction protrusion is connect with the second externally threaded lower end, and self-destruction protrusion is elasticity
It hangs, the correspondence self-destruction high spot indent in the middle part of the cone seat, the cavity is connected to the channel of the through-hole of distributary base and cone seat；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is to needle
Seat downlink limit, diaphragm plate are equipped with needle tubing through hole；And
Adjustment seat is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, is equipped in centre bore and centre bore and sets
There is two-wire internal screw thread, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat, and two-wire internal screw thread includes in first
Screw thread and the second internal screw thread, the notch that the upper part of first internal screw thread is axially arranged by one separate into two parts.
8. safety type multiple-head type injection needle according to claim 7, which is characterized in that in the first of the two-wire internal screw thread
The two-part upper edge of threaded upper end is equipped with wave point, and the upper end of the first internal screw thread is equipped with inclined-plane.
9. a kind of safety type multiple-head type injection needle characterized by comprising
Needle stand, the needle tubing fixation hole for being equipped with the cavity of top surface opening and being connected to cavity bottom surface；
Needle tubing is worn in the cavity for being fixed on needle stand and needle tubing fixation hole；
Distributary base is set in the cavity of needle stand, is equipped with the top perforative through-hole in bottom, the upper end of needle tubing is penetrated in the through-hole；
Cone seat, is equipped with the top perforative channel in bottom, and middle part is equipped with two-wire external screw thread, warning protrusion and self-destruction protrusion, bottom
It is set in the cavity of needle stand, the top of bottom and distributary base mutually assembles and surrounds cavity, wherein the two-wire external screw thread packet
Include the first external screw thread and the second external screw thread, the warning protrusion is set to the first external screw thread and second and externally threaded most plays between circle
And connected close to the second externally threaded lower end setting, the self-destruction protrusion and the most lower circle of the first external screw thread, self-destruction protrusion is set to
The corresponding thread groove end in second external screw thread lower end, self-destruction protrusion is in up-side down triangle and downwardly convex, the cavity and shunting
The through-hole of seat is connected to the channel of cone seat；
Negative pressure seat, is set in outside needle stand, is open in top bottom cylinder-shaped, interior to be equipped with diaphragm plate, the diaphragm plate is to needle
Seat downlink limit, diaphragm plate are equipped with needle tubing through hole；And
Adjustment seat is set in the middle part of cone seat and the top of negative pressure seat, is in lid shape, is equipped in centre bore and centre bore and sets
There is two-wire internal screw thread, the two-wire internal screw thread is matched with the two-wire external screw thread in the middle part of cone seat, and two-wire internal screw thread includes in first
Screw thread and the second internal screw thread, the notch that the upper part of first internal screw thread is axially arranged by one separate into two parts.
10. safety type multiple-head type injection needle according to claim 9, which is characterized in that the first of the two-wire internal screw thread
The two-part upper edge of internal screw thread upper end is equipped with wave point, and the upper end of the first internal screw thread is equipped with inclined-plane.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910770570.1A CN110384845A (en) | 2019-08-20 | 2019-08-20 | A kind of safety type multiple-head type injection needle |
| PCT/CN2020/109882 WO2021032094A1 (en) | 2019-08-20 | 2020-08-18 | Safe multi-head injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910770570.1A CN110384845A (en) | 2019-08-20 | 2019-08-20 | A kind of safety type multiple-head type injection needle |
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| Publication Number | Publication Date |
|---|---|
| CN110384845A true CN110384845A (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910770570.1A Pending CN110384845A (en) | 2019-08-20 | 2019-08-20 | A kind of safety type multiple-head type injection needle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110384845A (en) |
| WO (1) | WO2021032094A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021032094A1 (en) * | 2019-08-20 | 2021-02-25 | 贝普医疗科技有限公司 | Safe multi-head injection needle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8961470B2 (en) * | 2011-02-17 | 2015-02-24 | Steven Schraga | Pen needle with safety shield system |
| JP6124870B2 (en) * | 2011-05-06 | 2017-05-10 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Reuse protection for disposable parts |
| EP2982402B1 (en) * | 2013-04-05 | 2020-09-02 | Terumo Kabushiki Kaisha | Injection needle assembly and drug injection device |
| CN105582613A (en) * | 2015-12-10 | 2016-05-18 | 厦门波耐模型设计有限责任公司 | Multi-hole multi-needle injection needle |
| CN106178245A (en) * | 2016-08-04 | 2016-12-07 | 杭州电子科技大学 | A kind of micropin array device for the accurate subcutaneous administration of Wicresoft |
| CN208641537U (en) * | 2018-03-09 | 2019-03-26 | 中国人民解放军军事科学院军事医学研究院 | A kind of transdermal delivery device |
| CN211050521U (en) * | 2019-08-20 | 2020-07-21 | 贝普医疗科技有限公司 | Safe formula bull formula syringe needle |
| CN110384845A (en) * | 2019-08-20 | 2019-10-29 | 贝普医疗科技有限公司 | A kind of safety type multiple-head type injection needle |
-
2019
- 2019-08-20 CN CN201910770570.1A patent/CN110384845A/en active Pending
-
2020
- 2020-08-18 WO PCT/CN2020/109882 patent/WO2021032094A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021032094A1 (en) * | 2019-08-20 | 2021-02-25 | 贝普医疗科技有限公司 | Safe multi-head injection needle |
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| WO2021032094A1 (en) | 2021-02-25 |
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Address after: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Applicant after: Beipu Medical Technology Co.,Ltd. Address before: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Applicant before: Beipu Medical Technology Co.,Ltd. |