CN1915446B - Disposal type safety injection needle cylinder for anesthetic - Google Patents
Disposal type safety injection needle cylinder for anesthetic Download PDFInfo
- Publication number
- CN1915446B CN1915446B CN2005100908703A CN200510090870A CN1915446B CN 1915446 B CN1915446 B CN 1915446B CN 2005100908703 A CN2005100908703 A CN 2005100908703A CN 200510090870 A CN200510090870 A CN 200510090870A CN 1915446 B CN1915446 B CN 1915446B
- Authority
- CN
- China
- Prior art keywords
- syringe
- fastening groove
- sleeve pipe
- 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
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- 230000003444 anaesthetic effect Effects 0.000 title claims abstract description 33
- 238000002347 injection Methods 0.000 title description 11
- 239000007924 injection Substances 0.000 title description 11
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims description 27
- 230000001154 acute effect Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000036541 health Effects 0.000 claims description 6
- 210000003813 thumb Anatomy 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 description 7
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 208000019901 Anxiety disease Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 4
- 230000036506 anxiety Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 210000004247 hand Anatomy 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- A61M5/31—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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
-
- 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
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
-
- 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
- A61M5/3129—Syringe barrels
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
- A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A disposable high-safety injector for anesthetic is composed of main tube, push rod, needle and protecting sleeve. It features that its all parts are made of plastics and after it is used; its needle can be withdrawn into its protecting sleeve and fastened in it, so it can not be used again.
Description
Technical field
The present invention is a kind of disposable anaesthetic safety syninge tube, refers to a kind of belonging in the medical device technical field especially, 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, only 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:
One pull handle that engages with this syringe, a syringe needle, a push rod and a safeguard protection sleeve pipe, wherein, this syringe is a cylinder, can hold in the medicament Guan Yuqi, this back end of syringe has a pin thread, and its 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 female thread spiral shell of front end large-diameter portion syringe the rear end pin thread and be bonded together, the body of rod that this pull handle rear end 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 the two-way scalp acupuncture of a tool;
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 type guide channel and the square fastening groove that can match with blocking part of syringe projection embedding; or one can dwindle a triangle fastening groove or the square fastening groove that cervical region cooperates with the obstruct of strain; this blocking part or elastically deformable dwindle cervical region; be after making the syringe needle use of syringe; but make this projection mat guide channel be guided before the desire row is abandoned and make 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 or dwindle cervical region and blocked by this fastening groove and to end; promptly can't be moved out of use once again after making projection in a single day enter fastening groove, with the safety of guaranteeing that syringe cylinder uses by rearward end.
Described disposable anaesthetic safety syninge tube, this projection are square block, and this block is a sloped top face, end with locator card after conveniently entering fastening groove.
Described disposable anaesthetic safety syninge tube, 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, can hold the medicament pipe in it, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe is plastic hollow short cylinder body, and its front end spiral shell is located at the rear end of syringe, and this pull handle rear end is established the body of rod that a guide hole can make this push rod and stretched in the syringe and the piston of pushing medicament pipe by it;
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 safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a guide channel; this guide channel has a leading section and a rearward end; this rearward end porch is provided with the cervical region that dwindles of an elastically deformable; and a 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 the safeguard protection sleeve pipe 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 fastening groove and syringe can not be shifted out again, and guarantee that syringe needle is limited in the safeguard protection sleeve pipe according to the guiding of guide channel; thereby reach the health that is perfectly safe, with the safety of guaranteeing that syringe cylinder uses.
Described disposable anaesthetic safety syninge tube, this projection are the triangle block, and this fastening groove is the triangle fastening groove, and this block is that preceding high back is low, terminates in this triangle fastening groove with convenient card.
Described disposable anaesthetic safety syninge tube, this projection are the triangle block, and the fastening groove that is provided with after this cervical region is square fastening groove.
Described disposable anaesthetic safety syninge tube, the cervical region that dwindles of this elastically deformable is that pair of corresponding acute triangle protuberance with a stage is constituted, the body of this acute triangle protuberance and this safeguard protection sleeve pipe fuses.
Described disposable anaesthetic safety syninge tube, the cervical region that dwindles of this elastically deformable is that pair of corresponding obtuse triangle protuberance with a stage is constituted, the body of this obtuse triangle protuberance and this safeguard protection sleeve pipe fuses.
Described disposable anaesthetic safety syninge tube, the cervical region that dwindles of this elastically deformable is constituted with two stage two pairs of corresponding acute triangle protuberances, and the body of this acute triangle protuberance and this safeguard protection sleeve pipe fuses.
Described disposable anaesthetic safety syninge tube, this elastically deformable dwindles the fastening groove at cervical region rear, comprises that a square fastening groove and falls the convex fastening groove that trapezoidal fastening groove is combined as a whole.
Described disposable anaesthetic safety syninge tube, the projection on this syringe front end periphery is the arrow-shaped projection, this arrow-shaped projection comprises down the projection that a trapezoidal projection and a triangular bump are combined as a whole.
Described disposable anaesthetic safety syninge tube, this arrow-shaped projection are that preceding high back is low, terminate in the convex fastening groove with convenient card.
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 back syringe needle retraction safeguard protection backward sleeve pipe is interior and only give card; the syringe all components can be abandoned; need not repeated disinfection and use, stop to sterilize accidentally and the purpose that infects to reach.
For make the above-mentioned purpose of the present invention, effect and feature more specifically Liao separate, now with 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. 3 A is the generalized section that first embodiment of the invention is used in combination state;
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 floor map of third embodiment of the invention before abandoning after using;
Fig. 9 A is the partial enlarged drawing of Fig. 9;
Figure 10 is the stereoscopic figure of fourth embodiment of the invention;
Figure 11 is the three-dimensional exploded view of fourth embodiment of the invention;
Figure 12 is used in combination the floor map of state for fourth embodiment of the invention;
Figure 13 is the floor map of fourth embodiment of the invention before abandoning after using;
Figure 13 A is the partial enlarged drawing of Figure 13;
Figure 14 is the stereoscopic figure of fifth embodiment of the invention;
Figure 15 is the three-dimensional exploded view of fifth embodiment of the invention;
Figure 16 is used in combination the floor map of state for fifth embodiment of the invention;
Figure 17 is the floor map of fifth embodiment of the invention before abandoning after using;
Figure 17 A is the partial enlarged drawing of Figure 17.
The specific embodiment
At first please cooperate referring to Fig. 1-shown in Figure 4; first embodiment for disposable anaesthetic safety syninge tube of the present invention; it 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 14 is square block at present embodiment, this square block is low early and high after, with fit mutually convenient and safeguard protection sleeve pipe 30, the end face of this square block is by its centrage C in addition, 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 (as shown in Figure 3A) with the minor diameter part 15 of the leading section tool pin thread of syringe 10, 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, as shown in Figure 3A;
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 3A) 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 projection 14 positions of syringe 10, if one can be for L type the guide channel 332 and one square fastening groove 335 of syringe 10 projections 14 embeddings, wherein, this L type guide channel 332 and square fastening groove 335 by the front end of safeguard protection sleeve pipe 30 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 projection 14 of syringe 10, so that the medical worker injects operation, this rearward end 333 then is the usefulness that the location of projection 14 before syringe 10 does not use for syringe 10 stops, so that when the medical worker desires to inject operation, can by migration leading section 331, and this square fastening groove 335 is arranged on the relative opposite side of this rearward end 333, has a lath-shaped blocking part 334 therebetween, this blocking part 334 is integrally formed with the body of safeguard protection sleeve pipe 30, so that after syringe needle 40 uses of syringe 10, but these projection 14 mat L type guide channels 332 guides and are made syringe needle 40 make this projection 14 only be blocked by this square fastening groove 335 according to this again in the retraction safeguard protection sleeve pipe 30 in advance before the desire row was abandoned, make projection 14 in case after crossing this lath-shaped blocking part 334 and enter square fastening groove 335 by rearward end 333, be this blocking part 334 and intercept and be limited in the square fastening groove 335 and make syringe needle 40 can't be moved out of use once again, to guarantee the safety that syringe cylinder uses and to prevent that syringe needle is cleaned the disadvantage that back two degree are used;
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 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 accommodation space 11 (as shown in Figure 2) 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 401 of this syringe needle 40 is thrust in the blind end 51 of medicament pipe 50 contact 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 towards the rear (shown in Fig. 3, Fig. 3 A), 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.
After implementing injection; user is pushed grip part on the safeguard protection sleeve pipe 30 with hands; with hands whole safeguard protection sleeve pipe 30 is passed (as shown in Figure 4) towards the place ahead; and make within this safeguard protection sleeve pipe 30 of entry needle 402 retractions of syringe needle 40; 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 locate to make syringe 10 be placed on safeguard protection sleeve pipe 30, with the danger of avoiding user stabbed by entry needle 402.
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 second embodiment of the present invention, as Fig. 4-shown in Figure 8, its member and syntagmatic substantially is all identical with first embodiment, its identical member all is marked with identical label, its relevant member is preced with except that being marked with identical label again and is given English B, 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 safeguard protection sleeve pipe 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 332B 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 safeguard protection sleeve pipe 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 332B 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 safeguard protection sleeve pipe 30B; thereby reach the health that is perfectly safe; stopping, be used once again and the danger that catches because of sterilizing bad or after syringe needle cleans.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.
The third embodiment of the present invention, shown in Fig. 9, Fig. 9 A, its member and combination is substantially closed all identical with second embodiment, its identical member all is marked with identical label, its relevant member is preced with except that being marked with identical label again and is given English C, and as a means of contrast understanding mutually, the relevant explanation is omitted.
The present embodiment and the second embodiment difference be shown in Fig. 9 A, the guide channel 332C of present embodiment in rearward end 333C dwindle cervical region after a square fastening groove 335C is set, surplus person all is same as the 3rd embodiment, relevant explanation is omitted.
The fourth embodiment of the present invention, shown in Figure 10-Figure 13, Figure 13 A, its member and syntagmatic substantially is all identical with the 3rd embodiment, its identical member all is marked with identical label, its relevant member is preced with except that being marked with identical label again and is given English D, as a means of contrast understanding mutually, relevant explanation is omitted.
The guide channel 332D that present embodiment and the 3rd embodiment difference are present embodiment in rearward end 333D dwindle cervical region after a square fastening groove 335D is set; wherein; the cervical region that dwindles of the 3rd embodiment rearward end 333C is to constitute with two corresponding acute triangle protuberances; and the cervical region that dwindles of present embodiment rearward end 333D is constituted with two corresponding obtuse triangle protuberances; so that syringe cylinder can reach effect same as the previously described embodiments in response to using different materials; before promptly the desire row is abandoned; embodiment is described as described above; earlier syringe 10 is retracted backward; make safeguard protection sleeve pipe 30D stretch out forward; and syringe needle 40 is contracted toward in; make Yangtze River Delta shape projection 14D on the syringe 10 according to the guiding of guide channel 332D enter the rearward end 333D of strain by leading section 331D after; enter again and be limited in the square fastening groove 335D and syringe 10 can not be shifted out again; and guarantee that syringe needle 40 is limited in the safeguard protection sleeve pipe 30D; thereby reach the health that is perfectly safe; stopping, be used once again and the danger that catches because of sterilizing bad or after syringe needle cleans.
The fifth embodiment of the present invention, shown in Figure 14-Figure 17, Figure 17 A, its member and syntagmatic substantially is all identical with the 3rd embodiment, its identical member all is marked with identical label, its relevant member is preced with except that being marked with identical label again and is given English E, as a means of contrast understanding mutually, relevant explanation is omitted.
The guide channel 332E that the present embodiment and the second embodiment difference are present embodiment is provided with a square fastening groove 335E and behind the cervical region in dwindling of rearward end 333E and falls the convex fastening groove that trapezoidal fastening groove 336E is combined as a whole; and wherein; this second cervical region that dwindles of executing routine rearward end 333B is constituted with the pair of corresponding acute triangle protuberance in a stage, and the body of this triangle protuberance and this safeguard protection sleeve pipe fuses.The cervical region that dwindles of present embodiment rearward end 333E is constituted with two stage two couples of corresponding acute triangle protuberance 334E; and second executes the triangular bump 14B of example; change arrow-shaped projection 14E at present embodiment; this arrow-shaped projection 14E; as shown in figure 17; comprise down the arrow-shaped projection that a trapezoidal projection 140E and a triangular bump 141E are combined as a whole; as seen from the figure; this arrow-shaped projection 14E can be forward enters the rearward end 333E with two stage two couples of corresponding acute triangle protuberance 334E via the leading section 331E of guide channel 332E; and be limited to the set fastening groove behind the cervical region that dwindles of rearward end 333E; comprise that a square fastening groove 335E and falls in the convex fastening groove that trapezoidal fastening groove 336E is combined as a whole; make this arrow-shaped projection 14E in a single day enter square fastening groove 335E; promptly can't withdraw from again after in the 336E with reverse; this is a big characteristic of present embodiment; before promptly the desire row is abandoned; embodiment is described as described above; earlier syringe 10 is retracted backward; make safeguard protection sleeve pipe 30E stretch out forward; and syringe needle 40 is contracted toward in; make projection 14E on the syringe 10 according to the guiding of guide channel 332E enter the rearward end 333E of strain by leading section 331E after; enter again and be limited to square fastening groove 335E; in the 336E; and syringe 10 definitely can not be moved out of again; and guarantee that syringe needle 40 is limited in the safeguard protection sleeve pipe 30E; thereby reach the health that is perfectly safe; stopping, be used once again and the danger that catches because of sterilizing bad or after syringe needle cleans.
In sum, the present invention is that a quite excellent wound is thought really, and patent of invention is filed an application in the whence in accordance with the law; Only the content of above-mentioned explanation only is preferred embodiment explanation of the present invention, and all variations of extending according to technological means of the present invention also all should fall in the patent claim of the present invention, indicate hereby.
Claims (12)
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 in that:
This syringe is a lengthwise type hollow cylindrical body, can hold standard medicament pipe in it, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe is hollow short cylinder body, and its front end spiral shell is located at the rear end of syringe, and this pull handle rear end is established the body of rod that a guide hole can make this push rod and stretched in the syringe and the piston of pushing medicament pipe rear end by it;
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 safeguard protection sleeve pipe is the body of a lengthwise type; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a lengthwise L type guide channel; this guide channel has a leading section and a rearward end; a horizontal side is provided with a blocking part to this guide channel in the rearward end porch; and one fastening groove is set in a side of blocking part; so that before the desire row was abandoned after syringe cylinder used; earlier syringe is retracted backward; make the safeguard protection sleeve pipe stretch out forward; and syringe needle is contracted toward in; after making projection on this syringe enter rearward end by leading section according to the guiding of guide channel; recross this blocking part and be limited in the above-mentioned fastening groove, and syringe can not be shifted out again, with the safety of guaranteeing that syringe cylinder uses.
2. disposable anaesthetic safety syninge tube according to claim 1 is characterized in that: this projection is square block, and this block is a sloped top face, ends with locator card after conveniently entering fastening groove.
3. disposable anaesthetic safety syninge tube according to claim 1 is characterized in that: this syringe, push rod and safeguard protection sleeve pipe are plastic.
4. 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 in that:
This syringe is a lengthwise type hollow cylindrical body, can hold the medicament pipe in it, and this syringe front end periphery is provided with a projection;
One pull handle that engages with this syringe is plastic hollow short cylinder body, and its front end spiral shell is located at the rear end of syringe, and this pull handle rear end is established the body of rod that a guide hole can make this push rod and stretched in the syringe and the piston of pushing medicament pipe by it;
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 safeguard protection sleeve pipe is the plastic tube body of a lengthwise type; the periphery of this safeguard protection sleeve pipe is with respect to the bump position place of syringe; offer a guide channel; this guide channel has a leading section and a rearward end; this rearward end porch is provided with the cervical region that dwindles of an elastically deformable; and a 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 the safeguard protection sleeve pipe 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 fastening groove and syringe can not be shifted out again, and guarantee that syringe needle is limited in the safeguard protection sleeve pipe according to the guiding of guide channel; thereby reach the health that is perfectly safe, with the safety of guaranteeing that syringe cylinder uses.
5. disposable anaesthetic safety syninge tube according to claim 4 is characterized in that: this projection is the triangle block, and this fastening groove is the triangle fastening groove, and this block is that preceding high back is low, terminates in this triangle fastening groove with convenient card.
6. disposable anaesthetic safety syninge tube according to claim 4 is characterized in that: this projection is the triangle block, and the fastening groove that is provided with after this cervical region is square fastening groove.
7. disposable anaesthetic safety syninge tube according to claim 4; it is characterized in that: the cervical region that dwindles of this elastically deformable is that pair of corresponding acute triangle protuberance with a stage is constituted, and the body of this acute triangle protuberance and this safeguard protection sleeve pipe fuses.
8. disposable anaesthetic safety syninge tube according to claim 4; it is characterized in that: the cervical region that dwindles of this elastically deformable is that pair of corresponding obtuse triangle protuberance with a stage is constituted, and the body of this obtuse triangle protuberance and this safeguard protection sleeve pipe fuses.
9. disposable anaesthetic safety syninge tube according to claim 4; it is characterized in that: the cervical region that dwindles of this elastically deformable is constituted with two stage two pairs of corresponding acute triangle protuberances, and the body of this acute triangle protuberance and this safeguard protection sleeve pipe fuses.
10. disposable anaesthetic safety syninge tube according to claim 4 is characterized in that: this elastically deformable dwindles the fastening groove at cervical region rear, comprises that a square fastening groove and falls the convex fastening groove that trapezoidal fastening groove is combined as a whole.
11. disposable anaesthetic safety syninge tube according to claim 4 is characterized in that: the projection on this syringe front end periphery is the arrow-shaped projection, and this arrow-shaped projection comprises down the projection that a trapezoidal projection and a triangular bump are combined as a whole.
12. disposable anaesthetic safety syninge tube according to claim 11 is characterized in that: this arrow-shaped projection is that preceding high back is low, terminates in the convex fastening groove with convenient card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100908703A CN1915446B (en) | 2005-08-18 | 2005-08-18 | Disposal type safety injection needle cylinder for anesthetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100908703A CN1915446B (en) | 2005-08-18 | 2005-08-18 | Disposal type safety injection needle cylinder for anesthetic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1915446A CN1915446A (en) | 2007-02-21 |
| CN1915446B true CN1915446B (en) | 2010-09-01 |
Family
ID=37736603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100908703A Expired - Fee Related CN1915446B (en) | 2005-08-18 | 2005-08-18 | Disposal type safety injection needle cylinder for anesthetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1915446B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111374680B (en) * | 2020-03-31 | 2020-10-02 | 江苏苏云医疗器材有限公司 | Blood taking needle head protection device |
Citations (2)
| 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 |
| CN1515329A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Disposable safety needle cover device |
-
2005
- 2005-08-18 CN CN2005100908703A patent/CN1915446B/en not_active Expired - Fee Related
Patent Citations (2)
| 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 |
| CN1515329A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Disposable safety needle cover device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1915446A (en) | 2007-02-21 |
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