CN1891308B - Throw-away anaesthetic safety injection work drum - Google Patents

Throw-away anaesthetic safety injection work drum Download PDF

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Publication number
CN1891308B
CN1891308B CN2005100803171A CN200510080317A CN1891308B CN 1891308 B CN1891308 B CN 1891308B CN 2005100803171 A CN2005100803171 A CN 2005100803171A CN 200510080317 A CN200510080317 A CN 200510080317A CN 1891308 B CN1891308 B CN 1891308B
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CN
China
Prior art keywords
syringe
sleeve pipe
needle
protection sleeve
safeguard protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2005100803171A
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Chinese (zh)
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CN1891308A (en
Inventor
汪贤宗
Original Assignee
林辉铭
廖首猜
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Publication date
Application filed by 林辉铭, 廖首猜 filed Critical 林辉铭
Priority to CN2005100803171A priority Critical patent/CN1891308B/en
Publication of CN1891308A publication Critical patent/CN1891308A/en
Application granted granted Critical
Publication of CN1891308B publication Critical patent/CN1891308B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/3129Syringe barrels
    • A61M5/3137Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
    • A61M2005/3139Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips

Abstract

This invention relates to a safety injection syringe for discarded anaesthetics characterizing that all components of the syringe are made of plastic, the pinhead draws back into the safety protecting sleeve to be blocked after use and all the components can be discarded at once, it's not necessary to be disinfected and used.

Description

Disposable anaesthetic safety syninge tube
Technical field
The present invention relates to a kind of disposable anaesthetic safety syninge tube, belong in the medical device technical field, especially refer to a kind of jettisonable safety injection tube with safeguard protection sleeve pipe.
Background technology
Press, traditional fix syringe, though the material of its syringe cylinder is very excellent in design, owing to be that more special rustless steel injection tube uses in the present medical device of cooperation in its design, and this kind rustless steel injection tube is because cost is high, use and to be abandoned later, therefore after use, all need usually to reuse again, in case sterilization just can cause the anxiety of courses of infection when complete inadequately via sterilization.Again, the syringe needle of fix syringe front end is a double needle, usually in using back double needle syringe needle to want after rustless steel injection tube front end unloads, again the rustless steel injection tube to be carried out disinfection earlier, and when unloading, often accidentally promptly be easy to stab medical worker's finger, thereby also can cause the anxiety of courses of infection.
Summary of the invention
In view of this inventor is through continuous test and test, and a kind of disposable anaesthetic safety syninge tube is invented out in improvement finally.
Therefore, main purpose of the present invention is to propose a kind of disposable anaesthetic safety syninge tube, and the assembly of syringe cylinder is all made with plastics, and syringe cylinder can directly be abandoned after use, need not repeated disinfection and use, to stop the anxiety that catches being arranged accidentally because of sterilizing.
Another object of the present invention is to propose a kind of disposable anaesthetic safety syninge tube; but its syringe cylinder is after use in the retraction safeguard protection sleeve pipe and give card and end; and the syringe all components can be abandoned; the double needle syringe needle needn't unload, and does not have by the anxiety of use once again so nothing is stabbed medical worker and used syringe cylinder and syringe needle.
The present invention is for reaching above-mentioned purpose and effect, and technological means and scheme that it adopted comprise:
A kind of disposable anaesthetic safety syninge tube, comprise a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, this syringe is a lengthwise type hollow cylindrical body, it can hold standard medicament pipe, this back end of syringe has a pin thread, this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection; One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe rear end makes medicament inject human body; This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston; This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside; This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that the safeguard protection sleeve pipe can be nested with the periphery at syringe; and in the bump position place of this safeguard protection sleeve pipe periphery with respect to syringe; offering one can be for the lengthwise L type guide channel and the square fastening groove that can match with blocking part of syringe projection embedding; this L type guide channel has a leading section and a rearward end; after this obstructing part uses the syringe needle of syringe; making this projection be guided by L type guide channel before the desire row is abandoned makes syringe needle go ahead of the rest in the retraction safeguard protection sleeve pipe; make this projection cross this blocking part according to this again and blocked and end by this square fastening groove; promptly can't be moved out of use once again after making projection in a single day change fastening groove over to, with the safety of guaranteeing that syringe cylinder uses by rearward end.
This projection is square block, and this block is low early and high after, closes with convenient being nested with the safeguard protection sleeve pipe; the end face of this square block is with its centrage in addition, and right end face is lower, and left end face is higher; and be a sloped top face, end operation with convenient with assembling of safeguard protection sleeve pipe and localized card thereof.
The pushing and pressing end of this push rod next-door neighbour rear end suit one flexible rubber ring, this flexible rubber ring are set on the body of rod of push rod pass the guide hole of pull handle in this push rod body of rod after again, separate in case throw-out lever with pull handle expection property ground takes place in use.
This syringe, push rod and safeguard protection sleeve pipe are plastic.
A kind of disposable anaesthetic safety syninge tube, comprise a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, this syringe is a lengthwise type hollow cylindrical body, it can hold the medicament pipe, this back end of syringe has a pin thread, this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection; One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe makes medicament inject human body; This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston; This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside; This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that can being nested with, the safeguard protection sleeve pipe making up the syringe needle finished and the periphery of syringe; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a linear type guide channel; this guide channel has a leading section; rearward end; this guide channel is provided with a depression tune portion in the rearward end porch; and after this tune portion, be provided with one can strain the stop section and be arranged at thereafter a fastening groove; so that before the desire row was abandoned after syringe cylinder used; earlier syringe is retracted backward; make protective casing stretch out forward; and syringe needle is contracted toward in; after making projection on the syringe enter rearward end by leading section according to the guiding of guide channel; be limited in the fastening groove via the distortion stop section again and syringe can not be shifted out again, with the safety of guaranteeing that syringe cylinder uses.
This projection is the triangle block, and this block is low early and high after, with fit mutually convenient and the safeguard protection sleeve pipe; the end face of this block is with its centrage in addition, and right end face is lower, and left end face is higher; and be a sloped top face, end operation with convenient assembling and localized card thereof with the safeguard protection sleeve pipe.
Pushing and pressing end next-door neighbour rear end suit one flexible rubber ring of this push rod.
A kind of disposable anaesthetic safety syninge tube, comprise a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, this syringe is a lengthwise type hollow cylindrical body, it can hold the medicament pipe, this back end of syringe has a pin thread, this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection; One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe makes medicament inject human body; This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston; This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside; This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that can being nested with, the safeguard protection sleeve pipe making up the syringe needle finished and the periphery of syringe; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a linear type guide channel; this guide channel has a leading section; rearward end; this guide channel be provided with in the rearward end porch one can strain dwindle cervical region; and a triangle fastening groove is set after cervical region; so that before the desire row was abandoned after syringe cylinder used; earlier syringe is retracted backward; make protective casing stretch out forward; and syringe needle is contracted toward in; after making projection on the syringe enter the rearward end of strain by leading section, enter again and be limited in the triangle fastening groove and syringe can not be shifted out again, and guarantee that syringe needle is limited in the protective casing according to the guiding of guide channel; thereby reach the health that is perfectly safe, with the safety of guaranteeing that syringe cylinder uses.
This projection is the triangle block, and this block is low early and high after, with fit mutually convenient and the safeguard protection sleeve pipe; the end face of this block is with its centrage in addition, and right end face is lower, and left end face is higher; and be a sloped top face, end operation with convenient assembling and localized card thereof with the safeguard protection sleeve pipe.
Pushing and pressing end next-door neighbour rear end suit one flexible rubber ring of this push rod.
Use beneficial effect of the present invention to be:
Characteristics of the present invention are that the syringe cylinder all components makes with plastics, use in the back syringe needle retraction safeguard protection backward sleeve pipe and give card and end, and promptly the syringe all components can be abandoned, and need not repeated disinfection and use, and stop to sterilize accidentally and the purpose of infection to reach.
For purpose of the present invention, effect and feature can more specifically loud and clearly be separated, below preferred embodiment of the present invention and be aided with graphic being described in detail as follows.
Description of drawings
Fig. 1 is the stereoscopic figure of first embodiment of the invention;
Fig. 2 is the three-dimensional exploded view of first embodiment of the invention;
Fig. 3 is used in combination the floor map of state for first embodiment of the invention;
Fig. 4 is the floor map of first embodiment of the invention before abandoning after using
Fig. 5 is the stereoscopic figure of second embodiment of the invention;
Fig. 6 is the three-dimensional exploded view of second embodiment of the invention;
Fig. 7 is used in combination the floor map of state for second embodiment of the invention;
Fig. 8 is the floor map of second embodiment of the invention before abandoning after using;
Fig. 9 is the stereoscopic figure of third embodiment of the invention;
Figure 10 is the three-dimensional exploded view of third embodiment of the invention;
Figure 11 is used in combination the floor map of state for third embodiment of the invention;
Figure 12 is the floor map of third embodiment of the invention before abandoning after using.
The specific embodiment
At first please cooperate referring to shown in the 1-4 figure, first embodiment for the present invention's disposable anaesthetic safety syninge tube, it mainly is made of syringe 10, a push rod 20, a safeguard protection sleeve pipe 30, a syringe needle 40 and a medicament pipe 50 that contains pull handle 12, wherein, this medicament pipe 50 is the glass round tube body that tradition is formulated the standard diameter of specification, the blind end 51 of one end for being sealed by soft shape material, hold then for can in medicament pipe 50, form the piston 52 that vertically moves 51 then ccontaining injection medicaments of the piston 52 of medicament pipe 50 and blind end in addition;
This syringe 10 is the plastic hollow cylinder of a lengthwise type, these syringe 10 inside have an accommodation space 11 can hold medicament pipe 50 in it, these syringe 10 rear ends 13 have a pin thread 130, these syringe 10 front ends have the minor diameter part 15 of a pin thread, the syringe 10 large-diameter portion peripheries of minor diameter part 15 rear ends are provided with a projection 14, this projection 15 is square block at present embodiment, this square block is low early and high after, with convenient and safeguard protection sleeve pipe 30 fit mutually, the end face of this square block is by its centrage C in addition, and right end face is lower, and left end face is higher, and be a sloped top face, end operation with convenient following assembling and localized card thereof with safeguard protection sleeve pipe 30;
And the pull handle 12 that engages with syringe 10 is the plastic hollow short cylinder body of the big minor diameter part of tool, be located on the pin thread 130 of syringe 10 rear ends 13 with female thread 122 spiral shells of front end large-diameter portion 121, so that both are bonded together, these pull handle 12 rear end minor diameter parts establish that the body of rod that a guide hole 120 can make push rod 20 is stretched in the accommodation space 11 of syringe 10 by it and the piston 52 of pushing medicament pipe 50 makes medicament inject human body;
This push rod 20 is an elongated body of rod, the rear end of push rod 20 has a button circle portion 22 that supplies thumb to buckle into, its front end then forms the pushing and pressing end 21 that a diameter is slightly less than medicament pipe 50 pistons 52, pushing and pressing end 21 next-door neighbour rear end suit one flexible rubber rings 23, this flexible rubber ring 23 is set on the body of rod of push rod 20 pass the guide hole 120 of pull handle 12 in these push rod 20 bodies of rod after again, in case throw-out lever 20 takes place not separate to expection property with pull handle 12 in use;
This syringe needle 40 is a short type cylinder, this syringe needle 40 is arranged with formation one inner bolt hole 403 towards an end of syringe 10, this inner bolt hole 403 can be screwed with the minor diameter part 15 of the leading section tool pin thread of syringe 10 (as Fig. 3-shown in Figure 4), and the central interior of this inner bolt hole 403, then protrude out a pricker 401 that can pierce through medicament pipe 50 blind ends 51 end faces outward towards inner bolt hole 403 openings, and this syringe needle 40 is with respect to the end position place in addition of pricker 401, then protrude out an entry needle 402, and this entry needle 402 and pricker 401 inside are interconnected with a tiny perforation formation;
This safeguard protection sleeve pipe 30 is the plastic tube body of a lengthwise type, the internal diameter of these safeguard protection sleeve pipe 30 endoporus 31 is slightly larger than the external diameter of syringe 10, so that the endoporus 31 of safeguard protection sleeve pipe 30 can be nested with (as shown in Figure 3) making up syringe needle 40 and the formation of syringe 10 front ends finished, the periphery of this safeguard protection sleeve pipe 30 is with respect to guiding projection 14 positions of syringe 10, if one can be for L type the guide channel 332 and one square draw-in groove 335 of syringe 10 guiding projections 14 embeddings, wherein, this L type guide channel 332 and square draw-in groove 335 are that front end by safeguard protection sleeve pipe 30 is towards rear end longitudinal extension (as shown in Figure 2); This L type guide channel 332 has a leading section 331 and a rearward end 333, this leading section 331 stops for the guiding projection 14 of syringe 10, so that the medical worker injects operation, the usefulness that this rearward end 333 is then stopped for the location of guiding projection 14 before syringe 10 does not use of syringe 10, so that when the medical worker desires to inject operation, can by migration leading section 331, and this square draw-in groove 335 is arranged on the relative opposite side of this rearward end 333, has a blocking part 334 therebetween, after this blocking part 334 uses the syringe needle 40 of syringe 10, but this guiding projection 14 mat L type guide channels 332 were guided and are made syringe needle 40 go ahead of the rest and make this guiding projection 14 only be blocked by this square draw-in groove 335 according to this again in the retraction safeguard protection sleeve pipe 30 before the desire row was abandoned, promptly can't be moved out of use once again after making projection 14 in a single day change square draw-in groove 335 over to, use last safety and prevent that syringe needle is cleaned the disadvantage that back two degree are used to guarantee syringe cylinder by rearward end 333;
By this; when disposable anaesthetic safety syninge tube of the present invention in when combination (as Fig. 2; shown in Figure 3); the inner bolt hole 403 of syringe needle 40 and minor diameter part 15 formation of syringe 10 leading section pin threads are screwed togather (as shown in Fig. 3-Fig. 4); and be placed on the periphery of this syringe needle 40 and syringe 10 with safeguard protection sleeve pipe 30; guide channel 332 with these safeguard protection sleeve pipe 30 peripheries is placed on the guiding projection 14 of syringe 10; and block only by locating slot on the safeguard protection sleeve pipe 30 33 and square fastening groove 335 in cover postpone; it is inner and be positioned on the syringe 10 to make syringe 10 be placed on safeguard protection sleeve pipe 30, with the danger of avoiding user stabbed by entry needle 402.
When desire of the present invention injection is used (as Fig. 3-shown in Figure 4), then medicament pipe 50 is packed in (shown in the 3rd figure) in the accommodation space 11 by the rear end of syringe 10, promote the pull handle 12 of push rod 20 again, the piston 52 that promotes medicament pipes 50 with the pushing and pressing end 21 of this push rod 20 moves, and prop up on the front bulkhead of the accommodation space 11 of syringe 10 with blind end 51, the pricker 402 of this syringe needle 40 is thrust in the blind end 51 of medicament pipe 50 contact (as shown in Figure 3) with medicament;
Continue it; user is pushed grip part on the safeguard protection sleeve pipe 30 with hands again; again by user with hands with whole safeguard protection sleeve pipe 30 towards syringe 10 directions; promptly pass (as shown in Figure 3) towards the rear, and the entry needle 402 of syringe needle 40 must be exposed so that implement injection by the preceding hole 32 of this safeguard protection sleeve pipe 30.
In addition; must be emphasized especially; be because syringe 10 of the present invention, push rod 20, syringe needle 40 and safeguard protection sleeve pipe 30; all can utilize plastics to be made; so when disposable anaesthetic safety syninge tube of the present invention after finishing using; when syringe 10 is returned to aforementioned card fastening more backward and is positioned at the state of safeguard protection sleeve pipe 30; whole high-safety injection tube can be abandoned as Biohazard Waste; really reach and be perfectly safe and health, with the danger of stopping to catch accidentally because of sterilizing.The bumping square 14 of above-mentioned present embodiment is not to be necessary with square, and other suitable shape also belongs to feasible.
The present invention's second embodiment, as Fig. 5-shown in Figure 8, member and syntagmatic are all identical with first embodiment substantially for it, and its identical member all is marked with identical label, understands as a means of contrast mutually, and relevant explanation is omitted.
The present embodiment and the first embodiment difference are that the guide channel 332A of protective casing 30A is a linear type; and the projection 14A that is located on the syringe 10 changes the triangular form block into; by among the figure as can be known; the guide channel 33A of present embodiment also has a leading section 331A; rearward end 333A; only the guide channel 332A of present embodiment is provided with a depression tune portion in rearward end 333A porch; and the stop section 334A of an elastically deformable is set after tune portion and one of is arranged at thereafter fastening groove 335A; so that before the desire row was abandoned after syringe cylinder used; embodiment is described as described above; earlier syringe 10 is retracted backward; make protective casing 30A stretch out forward; and syringe needle 40 is contracted toward in; after making triangular bump 14A on the syringe 10 enter rearward end 333A by leading section 331A according to the guiding of guide channel 33A; be limited in the fastening groove 335A via distortion stop section 334A again and syringe 10 can not be shifted out again and guarantee that syringe needle 40 is limited in the protective casing 30; thereby reach the health that is perfectly safe; to stop syringe 10, be used once again and the danger that catches because of sterilizing bad or after syringe needle cleans.
The triangular bump 14A of above-mentioned present embodiment is not to be necessary with the triangle, and other suitable shape also belongs to feasible.
The third embodiment of the present invention, shown in Fig. 9-12 figure, its cardinal principle member and syntagmatic are all identical with first embodiment, and its identical member all is marked with identical label, and as a means of contrast understanding mutually, the relevant explanation is omitted.
The present embodiment and the first embodiment difference are that the guide channel 332B of protective casing 30B is a linear type; and the projection 14B that is located on the syringe 10 is the triangular form block; by among the figure as can be known; the guide channel 33B of present embodiment also has a leading section 331B; rearward end 333B; only the guide channel 332B of present embodiment is provided with the cervical region that dwindles of an elastically deformable in rearward end 333B porch; and a triangle fastening groove 335B is set after cervical region; so that before the desire row was abandoned after syringe cylinder used; embodiment is described as described above; earlier syringe 10 is retracted backward; make protective casing 30B stretch out forward; and syringe needle 40 is contracted toward in; make triangular bump 14B on the syringe 10 according to the guiding of guide channel 33B enter the rearward end 333B of strain by leading section 331B after; enter again and be limited in the triangle fastening groove 335B and syringe 10 can not be shifted out again; and guarantee that syringe needle 40 is limited in the protective casing 30B; thereby reach the health that is perfectly safe; to stop because of sterilizing bad or after syringe needle cleans, being used and the danger that catches once again.The triangular bump 14B of above-mentioned present embodiment is not to be necessary with the triangle, and other suitable shape also belongs to feasible.
In sum, the present invention is that a quite excellent wound is thought really, and the invention patent of invention is filed an application in the whence in accordance with the law; Only hold within the above-mentioned explanation, only be the present invention's preferred embodiment explanation, all variations of extending according to the present invention's technological means also all should fall in the present invention's the patent claim, indicate hereby.

Claims (10)

1. a disposable anaesthetic safety syninge tube comprises a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, it is characterized by:
This syringe is a lengthwise type hollow cylindrical body, and it can hold standard medicament pipe, and this back end of syringe has a pin thread, and this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe rear end makes medicament inject human body;
This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston;
This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside;
This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that the safeguard protection sleeve pipe can be nested with the periphery at syringe; and in the bump position place of this safeguard protection sleeve pipe periphery with respect to syringe; offering one can be for the lengthwise L type guide channel and the square fastening groove that can match with blocking part of syringe projection embedding; this L type guide channel has a leading section and a rearward end; after this obstructing part uses the syringe needle of syringe; making this projection be guided by L type guide channel before the desire row is abandoned makes syringe needle go ahead of the rest in the retraction safeguard protection sleeve pipe; make this projection cross this blocking part according to this again and blocked and end by this square fastening groove; promptly can't be moved out of use once again after making projection in a single day change fastening groove over to, with the safety of guaranteeing that syringe cylinder uses by rearward end.
2. disposable anaesthetic safety syninge tube according to claim 1; it is characterized by; this projection is square block; this block is low early and high after, closes with convenient being nested with the safeguard protection sleeve pipe, and the end face of this square block is with its centrage in addition; right end face is lower; and left end face is higher, and is a sloped top face, ends operation with convenient with assembling of safeguard protection sleeve pipe and localized card thereof.
3. disposable anaesthetic safety syninge tube according to claim 1, it is characterized by, pushing and pressing end next-door neighbour rear end suit one flexible rubber ring of this push rod, this flexible rubber ring is set on the body of rod of push rod pass the guide hole of pull handle in this push rod body of rod after again, separates in case throw-out lever with pull handle expection property ground takes place in use.
4. disposable anaesthetic safety syninge tube according to claim 1 is characterized by, and this syringe, push rod and safeguard protection sleeve pipe are plastic.
5. a disposable anaesthetic safety syninge tube comprises a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, it is characterized by:
This syringe is a lengthwise type hollow cylindrical body, and it can hold the medicament pipe, and this back end of syringe has a pin thread, and this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe makes medicament inject human body;
This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston;
This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside;
This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that can being nested with, the safeguard protection sleeve pipe making up the syringe needle finished and the periphery of syringe; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a linear type guide channel; this guide channel has a leading section; rearward end; this guide channel is provided with a depression tune portion in the rearward end porch; and after this tune portion, be provided with one can strain the stop section and be arranged at thereafter a fastening groove; so that before the desire row was abandoned after syringe cylinder used; earlier syringe is retracted backward; make protective casing stretch out forward; and syringe needle is contracted toward in; after making projection on the syringe enter rearward end by leading section according to the guiding of guide channel; be limited in the fastening groove via the distortion stop section again and syringe can not be shifted out again, with the safety of guaranteeing that syringe cylinder uses.
6. disposable anaesthetic safety syninge tube according to claim 5; it is characterized by; this projection is the triangle block; this block is low early and high after, and with fit mutually convenient and the safeguard protection sleeve pipe, the end face of this block is with its centrage in addition; right end face is lower; and left end face is higher, and is a sloped top face, ends operation with convenient assembling and localized card thereof with the safeguard protection sleeve pipe.
7. disposable anaesthetic safety syninge tube according to claim 5 is characterized by, pushing and pressing end next-door neighbour rear end suit one flexible rubber ring of this push rod.
8. a disposable anaesthetic safety syninge tube comprises a pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, it is characterized by:
This syringe is a lengthwise type hollow cylindrical body, and it can hold the medicament pipe, and this back end of syringe has a pin thread, and this syringe front end has the minor diameter part of a pin thread, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe, plastic hollow short cylinder body for the big minor diameter part of tool, be located at the pin thread of the rear end of syringe with the female thread spiral shell of front end large-diameter portion, so that both are bonded together, this pull handle rear end minor diameter part establishes that the body of rod that a guide hole can make this push rod is stretched in the syringe by it and the piston of pushing medicament pipe makes medicament inject human body;
This push rod is an elongated body of rod, and its rear end has a button circle portion that supplies thumb to buckle into, and its front end then forms the pushing and pressing end that a diameter is slightly less than medicament pipe piston;
This syringe needle is the short type cylinder of a double needle, this syringe needle is arranged with formation one inner bolt hole towards an end of syringe, the minor diameter part of the leading section tool pin thread of this inner bolt hole and syringe is screwed, this double needle comprises the entry needle that a pricker and that can pierce through medicament duct occlusion end end face protrudes out forward, and this entry needle and pricker are interconnected with a tiny perforation formation in inside;
This safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; its internal diameter is slightly larger than the external diameter of syringe; so that can being nested with, the safeguard protection sleeve pipe making up the syringe needle finished and the periphery of syringe; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a linear type guide channel; this guide channel has a leading section; rearward end; this guide channel be provided with in the rearward end porch one can strain dwindle cervical region; and a triangle fastening groove is set after cervical region; so that before the desire row was abandoned after syringe cylinder used; earlier syringe is retracted backward; make protective casing stretch out forward; and syringe needle is contracted toward in; after making projection on the syringe enter the rearward end of strain by leading section, enter again and be limited in the triangle fastening groove and syringe can not be shifted out again, and guarantee that syringe needle is limited in the protective casing according to the guiding of guide channel; thereby reach the health that is perfectly safe, with the safety of guaranteeing that syringe cylinder uses.
9. disposable anaesthetic safety syninge tube according to claim 8; it is characterized by; this projection is the triangle block; this block is low early and high after, and with fit mutually convenient and the safeguard protection sleeve pipe, the end face of this block is with its centrage in addition; right end face is lower; and left end face is higher, and is a sloped top face, ends operation with convenient assembling and localized card thereof with the safeguard protection sleeve pipe.
10. disposable anaesthetic safety syninge tube according to claim 8 is characterized by, pushing and pressing end next-door neighbour rear end suit one flexible rubber ring of this push rod.
CN2005100803171A 2005-07-01 2005-07-01 Throw-away anaesthetic safety injection work drum Expired - Fee Related CN1891308B (en)

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CN2005100803171A CN1891308B (en) 2005-07-01 2005-07-01 Throw-away anaesthetic safety injection work drum

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Application Number Priority Date Filing Date Title
CN2005100803171A CN1891308B (en) 2005-07-01 2005-07-01 Throw-away anaesthetic safety injection work drum

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CN1891308A CN1891308A (en) 2007-01-10
CN1891308B true CN1891308B (en) 2010-10-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2929490T3 (en) * 2009-12-16 2022-11-29 Becton Dickinson Co self injection device
CN102125722B (en) * 2011-04-15 2012-10-10 吴成芳 Anus injector
TWI637764B (en) * 2017-11-02 2018-10-11 台灣微創醫療器材股份有限公司 Injection unit for injection of bone filler
CN110448758B (en) * 2019-06-25 2022-06-03 南京巨鲨显示科技有限公司 Non-rotating loading syringe with pressure sleeve and injector system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405326A (en) * 1993-08-26 1995-04-11 Habley Medical Technology Corporation Disposable safety syringe with retractable shuttle for luer lock needle
US6093170A (en) * 1999-01-28 2000-07-25 Hsu; Kuo-Chi Structure safety syringe
CN2565459Y (en) * 2002-08-23 2003-08-13 陈庆强 Syringe with self-destroying structure
CN1515328A (en) * 2003-01-08 2004-07-28 汪贤宗 Multifunctional safety needle cover device
CN2698371Y (en) * 2004-03-03 2005-05-11 康德保生化科技股份有限公司 Safety device for syringe needle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405326A (en) * 1993-08-26 1995-04-11 Habley Medical Technology Corporation Disposable safety syringe with retractable shuttle for luer lock needle
US6093170A (en) * 1999-01-28 2000-07-25 Hsu; Kuo-Chi Structure safety syringe
CN2565459Y (en) * 2002-08-23 2003-08-13 陈庆强 Syringe with self-destroying structure
CN1515328A (en) * 2003-01-08 2004-07-28 汪贤宗 Multifunctional safety needle cover device
CN2698371Y (en) * 2004-03-03 2005-05-11 康德保生化科技股份有限公司 Safety device for syringe needle

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