CN102836485A - Self-destructive injector - Google Patents
Self-destructive injector Download PDFInfo
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- CN102836485A CN102836485A CN2012103714625A CN201210371462A CN102836485A CN 102836485 A CN102836485 A CN 102836485A CN 2012103714625 A CN2012103714625 A CN 2012103714625A CN 201210371462 A CN201210371462 A CN 201210371462A CN 102836485 A CN102836485 A CN 102836485A
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- pedestal
- self
- destruction
- bar head
- injection tube
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Abstract
The invention provides a self-destructive injector, which belongs to the technical field of medical appliances and is used for solving the problems of liquid medicament pollution and the like caused by self-destruction of the conventional injectors. The self-destructive injector comprises an injection cylinder, an injection rod, a rubber plug and a needle head base, wherein the rubber plug is fixedly connected to the front part of the injection rod; the needle head base is connected to the inner side of the front end of the injection cylinder; the front part of the injection rod is provided with a rod head passing through the rubber plug and extending out of the rubber plug; the needle head base comprises a cylindrical base body I and a cylindrical base body II; a needle head is arranged on the upper part of the base body I; the base body is fixedly connected to the lower part of the base body bi-axially; a clamping structure which can be used for fixedly connecting the base body II with the inner side of the front end of the injection cylinder axially is arranged between the base body II and the inner side of the front end of the injection cylinder; the base body I is fixed circumferentially with the inner side of the front end of the injection cylinder; and the inner side of the base body II is provided with a positioning part which can be fixed circumferentially with the rod head. The self-destructive injector has the advantages of simple structure, convenience in self-destruction and the like.
Description
Technical field
The invention belongs to the medical device technical field, relate to a kind of syringe, particularly a kind of self-destruction syringe.
Background technology
Current, syringe is the most frequently used, also one of medical apparatus and instruments of the amount of being to use maximum.In order to control iatrogenic infectious disease, avoid adverse consequencess such as cross infection in recent years, generally use disposable sterilized injector.But existing disposable syringe all exists and remains intact still reusable after the use and do not have safety device; Defectives such as injection back syringe needle exposes; Being subject to the lawless person on the one hand utilizes; Depleted disposable syringe is reused without sterilization after will using, and this very easily causes the propagation and the cross infection of virus; Outside syringe needle after the injection still is trapped on the other hand; Sharp-pointed degree with respect to syringe needle; The carrying, the destruction that are not merely syringe rubbish are made troubles, and because of the thing of stabbing medical personnel accidentally also often takes place, the cross infection of pathogenic bacteria just inevitably can occur simultaneously.
For this reason, people have designed various self-destruction syringes.At present, the method for using that most of safe self-breaking syringe designed on the market all can not be before injection is accomplished be pushed into the piston tip before the core bar zero line position of syringe scale.Because, in case shift the end onto when reaching zero line, will start the self-desttruction equipment of this safe self-breaking syringe, make doctor's material promptly locked before using as yet, thereby cause waste for no reason.
Its publication number of Chinese patent CN2855435Y provide a kind of " syringe ", and it comprises the needle unit and that an injection tube, is installed on this injection tube can be plugged in the plunger unit in this injection tube with passing.This plunger unit has a rod member and and is nested in the piston on this rod member; And when this rod member is positioned at a normal injection position with respect to this piston; Produce a potential difference between the first dish portion and this piston diapire; When this rod member was positioned at a pressing position with respect to this piston, this potential difference disappeared, and the tenon of this rod member can be tied with this needle unit embedding.Borrow this plunger unit to pull back, it is inner to drive this needle unit retraction injection tube, to reach the purpose of safe handling.Though it also can be unlikely to self-destruction when arriving zero line, accomplish when its injection behavior, in the time of carrying out the self-destruction action, when piston was pushed forward, the unnecessary medicinal liquid of needle stand interior forward end this moment just can be extruded, and causes the pollution of medicinal liquid.
Existing other syringe also all exists similar problem.
Summary of the invention
The objective of the invention is the problems referred to above to the prior art existence, provide a kind of simple in structure, self-destruction is self-destruction syringe easily.
The object of the invention can be realized through following technical proposal: a kind of self-destruction syringe; Comprise injection tube, injection rod, rubber stopper and needle holder, described rubber stopper is connected in the injection rod front portion, and above-mentioned needle holder is connected the front end inboard of said injection tube; The front portion of said injection rod has the bar head that passes rubber stopper and stretch out rubber stopper; It is characterized in that said needle holder comprises and be pedestal cylindraceous one and pedestal two that above-mentioned pedestal one top is used to install syringe needle; Above-mentioned pedestal two axially is connected in pedestal one bottom; Have the snap-in structure that both axially are connected between said pedestal two and the injection tube front end inboard, said pedestal one is fixed with injection tube front end inner circumferential, said pedestal two inboards have can with the circumferential fixed location division of bar head; The bar head can drive pedestal two rotations and make above-mentioned snap-in structure disengaging when the bar head is positioned at the location division, after said bar head is crossed the location division, can be connected on the pedestal two.
Rubber stopper can be got to the bottom in the normal use of this self-destruction syringe, does not have medicinal liquid like this and remains in the injection tube.
When needing self-destruction, the dwang head gets final product, and the bar head is crossed the location division when getting to the bottom owing to syringe, and pulling back, rotation injection rod drive pedestal two rotates with respect to injection tube when making the bar head be positioned at the location division.Obviously, rotate the back snap-in structure and break away from, make pedestal two to move up and down with respect to injection tube.Continue to advance injection rod, the bar head is connected on the pedestal two after crossing the location division.At this moment, drop-down injection rod just can be drawn in whole needle holder in the injection tube, realizes self-destruction.
In above-mentioned self-destruction syringe, said pedestal two tops have the connecting portion of protrusion ringwise, and said pedestal one bottom has the link slot that is complementary with connecting portion, and above-mentioned connecting portion is in link slot.
Obviously, connecting portion is embedded in the link slot, and such structure makes the pedestal two can be with respect to pedestal one rotation, and both can realize axial restraint.
In above-mentioned self-destruction syringe, described snap-in structure comprises the inboard plush copper of protruding of injection tube and pedestal two outsides along its circumferentially recessed draw-in groove, and above-mentioned plush copper can embed in the draw-in groove.
Pedestal two just can not move up and down in the time of in plush copper embeds draw-in groove.
In above-mentioned self-destruction syringe, the quantity of said plush copper and draw-in groove is at least two, and the symmetric injection tube inboard that is distributed in of plush copper, symmetric pedestal two outsides that are distributed in of above-mentioned draw-in groove.
Such structure makes that pedestal two and injection tube axial restraint are more stable.
In above-mentioned self-destruction syringe; Said injection tube inboard has the raised line one of some protrusions; Said pedestal one outside has the raised line two of some protrusions, above-mentioned raised line two between adjacent two raised lines one and the width of raised line two and the spacing between two raised lines one be complementary.
Raised line can make both circumferentially fixing once being embedded between adjacent two raised lines two.Above-mentioned spacing dimension can not become flexible after making both circumferentially fixing.
In above-mentioned self-destruction syringe, said raised line one has the guide part one that is tip-angled shape towards injection tube front end place, and said raised line two has the guide part two that is tip-angled shape towards pedestal two places.
Through guide part one, guide part two, raised line one can embed between the two adjacent raised lines two smoothly in assembling process.
In above-mentioned self-destruction syringe; Described location division comprises the slide block of the some convexities of the stopper and the said bar head outside of some convexities that pedestal two is inboard; And slide block can be embedded between any adjacent two stoppers, and the bar head can be with respect to pedestal two rotations after slide block is crossed stopper.
When slide block was positioned at the stopper place, the bar head can be stirred pedestal two rotations.The bar head makes the slide block overlap joint on stopper top with respect to pedestal two rotations after slide block is crossed stopper, and the bar head is connected on the pedestal two.
In above-mentioned self-destruction syringe, has the guide part three that is tip-angled shape toward pedestal two bottoms on the described stopper.
In like manner, the structure of guide part three makes the clicking section of bar head can be embedded in smoothly between adjacent two stop parts.
In above-mentioned self-destruction syringe, described slide block is the L shape, comprises the bar portion that is the vertical bar shape and hook-shaped hook portion, and said hook portion width is greater than bar portion width, and above-mentioned spacing and hook portion width between adjacent two stoppers arbitrarily is complementary.
Hook portion is between adjacent two stoppers the time, bar head and pedestal two secure fit, and the dwang head can drive pedestal two rotations smoothly.Bar portion is resisted against on the stopper when hook portion is crossed stopper, and this moment, hook portion just overlapped on stop part top, realizes that the bar head is connected on the pedestal two.
In above-mentioned self-destruction syringe, said injection rod comprises bar head and the shank that is connected with the bar head, and said shank comprises four lamellar bodies that are fixed together, and the shank cross section is crosswise, and said shank has can increase the reinforcement of its intensity structure.
Because injection rod will rotate in the self-destruction process, increase its intensity through strengthening structure, make in its rotation process can not bend.
In above-mentioned self-destruction syringe, described reinforcement structure comprises the reinforced sheet between adjacent two lamellar bodies of shank.
In above-mentioned self-destruction syringe, the same axial positions of said shank has four reinforced sheets, and four reinforced sheets form a reinforcement unit.
Obviously, such structure has increased the torsional strength of injection rod.
In above-mentioned self-destruction syringe, said shank axially is evenly equipped with some reinforcements unit along it.A plurality of reinforcements unit has further increased the torsional strength of whole injection rod.
Compared with prior art, this self-destruction syringe since self-destruction mainly realize through rotating injection rod, therefore, needn't worry in the normal use of syringe that injection rod fights to the finish to cause the problem of self-destruction maloperation.Obviously, it is easy to use.Simultaneously, oneself ruin in the process as long as needing to rotate spurs injection rod again behind the injection rod and just can whole needle holder be drawn in the injection tube, the realization self-destruction, the self-destruction process is easy.
In addition, whole syringe only is made up of pedestal one, pedestal two, injection tube, injection rod etc., and it is simple in structure, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of this self-destruction syringe.
Fig. 2 is the structural representation that slide block is positioned at the stopper place in this self-destruction syringe.
Fig. 3 is the structural representation that slide block is crossed stopper in this self-destruction syringe.
Fig. 4 is the partial structurtes sketch map of injection tube in this self-destruction syringe.
Fig. 5 is the plan structure sketch map along Fig. 4.
Fig. 6 is an injection tube other direction partial structurtes sketch map in this self-destruction syringe.
Fig. 7 is the plan structure sketch map along Fig. 6.
Fig. 8 is the structural representation of injection rod in this self-destruction syringe.
Fig. 9 is the structural representation at this self-destruction syringe king-rod head place.
Figure 10 is the structural representation of pedestal two in this self-destruction syringe.
Figure 11 is the structural representation of pedestal two other directions in this self-destruction syringe.
Figure 12 is the sectional structure sketch map of pedestal two in this self-destruction syringe.
Figure 13 is the structural representation that pedestal two is connected with pedestal one in this self-destruction syringe.
Figure 14 is bottom this self-destruction syringe injection rod is got to and is not in the structural representation of self-destruction state.
Figure 15 is the structural representation that the self-destruction state was retreated and be not in to injection rod a little in this self-destruction syringe.
Figure 16 is the view that snap-in structure breaks away from this self-destruction syringe.
Figure 17 is the structural representation after the complete self-destruction of this self-destruction syringe.
Among the figure, 1, injection tube; 1a, raised line one; 1a1, guide part one; 1b, plush copper; 2, injection rod; 3, rubber stopper; 4, pedestal one; 4a, raised line two; 4a1, guide part two; 4b, link slot; 5, pedestal two; 5a, connecting portion; 5b, draw-in groove; 5c, stopper; 5c1, guide part three; 6, bar head; 6a, slide block; 6a1, bar portion; 6a2, hook portion; 7, shank; 7a, lamellar body; 8, reinforced sheet.
The specific embodiment
Like Fig. 1 and Fig. 2 and shown in Figure 3, this self-destruction syringe comprises injection tube 1, injection rod 2, rubber stopper 3 and needle holder.Rubber stopper 3 is connected in injection rod 2 front portions, and needle holder is connected the front end inboard of injection tube 1, and the front portion of injection rod 2 has the bar head 6 that passes rubber stopper 3 and stretch out rubber stopper 3.
Needle holder comprises and is pedestal cylindraceous 1 and pedestal 25, and pedestal one 4 tops are used to install syringe needle, and pedestal 25 axially is connected in pedestal one 4 bottoms.
Like Fig. 4 and Fig. 5 and Fig. 6 and shown in Figure 7; Injection tube 1 inboard has raised line one 1a of four protrusions; Pedestal one 4 outsides have raised line two 4a of four protrusions; Raised line two 4a between adjacent two raised lines, one 1a and the width of raised line two 4a and the spacing between two raised lines, one 1a be complementary, fix with making pedestal 1 and injection tube 1 front end inner circumferential cooperating of raised line two 4a through raised line one 1a.Raised line one 1a has guide part one 1a1 that is tip-angled shape towards injection tube 1 front end place, and raised line two 4a have guide part two 4a1 that are tip-angled shape towards pedestal 25 places.
Like Figure 10-shown in Figure 13; Pedestal 25 tops have the connecting portion 5a of protrusion ringwise; Pedestal one 4 bottoms have the link slot 4b that is complementary with connecting portion 5a; Connecting portion 5a is positioned at link slot 4b, through such structure pedestal 25 can be rotated with respect to pedestal 1, that is to say to make both axial restraints.
Has the snap-in structure that both axially are connected between pedestal 25 and the injection tube 1 front end inboard.Snap-in structure comprises the injection tube 1 inboard plush copper 1b that protrudes and pedestal 25 outsides along its circumferentially recessed draw-in groove 5b, and plush copper 1b can embed in the draw-in groove 5b.The quantity of plush copper 1b and draw-in groove 5b all is four, and symmetric injection tube 1 inboard that is distributed in of plush copper 1b, symmetric pedestal 25 outsides that are distributed in of draw-in groove 5b.
As shown in Figure 9, pedestal 25 inboards have the location division, and bar head 6 can drive pedestal 25 rotations and make above-mentioned snap-in structure disengaging when bar head 6 is positioned at the location division, after bar head 6 is crossed the location division, can be connected on the pedestal 25.
The location division comprises the slide block 6a of the some convexities of the stopper 5c and bar head 6 outsides of some convexities that pedestal 25 is inboard; And slide block 6a can be embedded between any adjacent two stopper 5c, and bar head 6 can rotate with respect to pedestal 25 after slide block 6a crosses stopper 5c.Stopper 5c upward has guide part three 5c1 that are tip-angled shape toward pedestal 25 bottoms.In the present embodiment, slide block 6a is the L shape, and it comprises the 6a1 of bar portion that is the vertical bar shape and hook-shaped hook portion 6a2, and hook portion 6a2 width is greater than the 6a1 of bar portion width, and spacing and the hook portion 6a2 width between the adjacent two stopper 5c is complementary arbitrarily.
Like Figure 14 and shown in Figure 15, promote injection rod 2 in the normal use of self-destruction syringe and carry out injecting liquid drug.Rubber stopper 3 gets to when bottom because the clicking section 6a of bar head 6 crosses the inboard stop part 5c of pedestal 25.Even rotate injection rod 2 this moment, because not blocked, the also just idle running of injection rod 2 at this moment of the clicking section 6a of bar head 6.Therefore, the self-destruction maloperation can not occur, not have medicinal liquid so simultaneously and remain in the injection tube 1.
Like Figure 16 and shown in Figure 17, when needing self-destruction, the injection rod 2 of pulling back is embedded between the stopper 5c of pedestal 25 inboards the slide block 6a on the bar head 6.At this moment, bar head 6 is circumferentially fixing with pedestal 25, drives pedestal 25 through bar head 6 and rotates, and the draw-in groove 5b on the pedestal 25 breaks away from injection tube 1 inboard plush copper 1b, and the axial restraint between pedestal 25 and the injection tube 1 is disengaged.Continue to advance injection rod 2, make the hook portion 6a2 of clicking section 6a cross stopper 5c, the 6a1 of bar portion is resisted against on the stopper 5c, and this moment, hook portion 6a2 just overlapped on stop part 5c top, realizes that bar head 6 is connected on the pedestal 25.At this moment, drop-down injection rod just can be drawn in whole needle holder in the injection tube, realizes self-destruction.In this process when the 6a1 of bar portion is resisted against stopper 5c injection rod 2 can't be rotated further, this moment tell signal of operator to have carried out self-destruction by drop-down injection rod.
As shown in Figure 8, injection rod 2 comprises bar head 6 and the shank 7 that is connected with bar head 6, and shank 7 comprises four lamellar body 7a that are fixed together, and shank 7 cross sections are crosswise.Because injection rod 2 needs to rotate during self-destruction, therefore, being provided with at shank 7 to increase the reinforcement of its intensity structure.Strengthen structure and comprise the reinforced sheet 8 between shank 7 adjacent two lamellar body 7a.Shank 7 same axial positions have four reinforced sheets 8, and four reinforced sheets form a reinforcement unit.Shank 7 axially is evenly equipped with three along it and strengthens the unit.
Claims (10)
1. self-destruction syringe; Comprise injection tube (1), injection rod (2), rubber stopper (3) and needle holder; Described rubber stopper (3) is connected in injection rod (2) front portion; Above-mentioned needle holder is connected the front end inboard of said injection tube (1), and the front portion of said injection rod (2) has the bar head (6) that passes rubber stopper (3) and stretch out rubber stopper (3), it is characterized in that; Said needle holder comprises and is pedestal one (4) cylindraceous and pedestal two (5); Above-mentioned pedestal one (4) top is used to install syringe needle, and above-mentioned pedestal two (5) axially is connected in pedestal one (4) bottom, has the snap-in structure that both axially are connected between said pedestal two (5) and injection tube (1) the front end inboard; Said pedestal one (4) is fixed with injection tube (1) front end inner circumferential; Said pedestal two (5) inboards have can with the circumferential fixed location division of bar head (6), when bar head (6) when being positioned at the location division bar head (6) can drive pedestal two (5) and rotate above-mentioned snap-in structure is broken away from, after said bar head (6) is crossed the location division, can be connected on the pedestal two (5).
2. self-destruction syringe according to claim 1; It is characterized in that; Said pedestal two (5) tops have the connecting portion (5a) of protrusion ringwise; Said pedestal one (4) bottom has the link slot (4b) that is complementary with connecting portion (5a), and above-mentioned connecting portion (5a) is positioned at link slot (4b).
3. self-destruction syringe according to claim 2; It is characterized in that; Described snap-in structure comprises the inboard plush copper of protruding (1b) of injection tube (1) and pedestal two (5) outsides along its circumferentially recessed draw-in groove (5b), and above-mentioned plush copper (1b) can embed in the draw-in groove (5b).
4. self-destruction syringe according to claim 3; It is characterized in that; The quantity of said plush copper (1b) and draw-in groove (5b) is at least two, and symmetric injection tube (1) inboard that is distributed in of plush copper (1b), symmetric pedestal two (5) outsides that are distributed in of above-mentioned draw-in groove (5b).
5. according to claim 1 or 2 or 3 or 4 described self-destruction syringes; It is characterized in that; Said injection tube (1) inboard has the raised line one (1a) of some protrusions; Said pedestal one (4) outside has the raised line two (4a) of some protrusions, and above-mentioned raised line two (4a) is positioned between adjacent two raised lines one (1a) and the width of raised line two (4a) and the spacing between two raised lines one (1a) are complementary.
6. self-destruction syringe according to claim 5; It is characterized in that; Said raised line one (1a) has the guide part one (1a1) that is tip-angled shape towards injection tube (1) front end place, and said raised line two (4a) locates to have the guide part two (4a1) that is tip-angled shape towards pedestal two (5).
7. according to claim 1 or 2 or 3 or 4 described self-destruction syringes; It is characterized in that; The slide block (6a) of some convexities outside the stopper (5c) that described location division comprises some convexities that pedestal two (5) is inboard and the said bar head (6); And slide block (6a) can be embedded between any adjacent two stoppers (5c), and bar head (6) can rotate with respect to pedestal two (5) after slide block (6a) is crossed stopper (5c).
8. self-destruction syringe according to claim 7 is characterized in that, described stopper (5c) is gone up has the guide part three (5c1) that is tip-angled shape toward pedestal two (5) bottoms.
9. self-destruction syringe according to claim 7; It is characterized in that; Described slide block (6a) is the L shape; Comprise the bar portion (6a1) that is the vertical bar shape and hook-shaped hook portion (6a2), said hook portion (6a2) width is greater than bar portion (6a1) width, and above-mentioned spacing and hook portion (6a2) width between adjacent two stoppers (5c) arbitrarily is complementary.
10. according to claim 1 or 2 or 3 or 4 described self-destruction syringes; It is characterized in that; Said injection rod (2) comprises bar head (6) and the shank (7) that is connected with bar head (6); Said shank (7) comprises four lamellar bodies that are fixed together (7a), and shank (7) cross section is crosswise, and said shank (7) has can increase the reinforcement of its intensity structure; Described reinforcement structure comprises the reinforced sheet (8) that is positioned between adjacent two lamellar bodies of shank (7) (7a); The same axial positions of said shank (7) has four reinforced sheets (8), and four reinforced sheets (8) formation, one reinforcement unit, and said shank (7) axially is evenly equipped with some reinforcements unit along it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210371462.5A CN102836485B (en) | 2012-09-28 | 2012-09-28 | Self-destructive injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210371462.5A CN102836485B (en) | 2012-09-28 | 2012-09-28 | Self-destructive injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102836485A true CN102836485A (en) | 2012-12-26 |
| CN102836485B CN102836485B (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210371462.5A Expired - Fee Related CN102836485B (en) | 2012-09-28 | 2012-09-28 | Self-destructive injector |
Country Status (1)
| Country | Link |
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| CN (1) | CN102836485B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014060A (en) * | 2014-06-18 | 2014-09-03 | 宁波圣宇瑞医疗器械有限公司 | Atomizer and atomization device |
| CN107982586B (en) * | 2017-12-27 | 2024-01-09 | 西安市第一医院 | Self-locking type negative pressure suction syringe |
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| US6251095B1 (en) * | 1998-04-10 | 2001-06-26 | Wen-Neng Liu | Safety syringe with retractable standard needles |
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| CN1803212A (en) * | 2006-01-12 | 2006-07-19 | 林作钱 | Safe self-destruction syringe for medical purpose |
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| CN201320334Y (en) * | 2008-12-18 | 2009-10-07 | 徐家华 | Return type safe self-destroying syringe |
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| CN201987995U (en) * | 2010-12-29 | 2011-09-28 | 上海康德莱企业发展集团股份有限公司 | Push rod structure of self-destroying injector |
| US20120226241A1 (en) * | 2011-03-02 | 2012-09-06 | Shu-Ming Chang | Safety syringe with retractable rotation |
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- 2012-09-28 CN CN201210371462.5A patent/CN102836485B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US6251095B1 (en) * | 1998-04-10 | 2001-06-26 | Wen-Neng Liu | Safety syringe with retractable standard needles |
| US20050277880A1 (en) * | 2004-06-11 | 2005-12-15 | Ming-Jeng Shue | Disposable syringe with a retractable needle |
| CN1803212A (en) * | 2006-01-12 | 2006-07-19 | 林作钱 | Safe self-destruction syringe for medical purpose |
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| CN201304154Y (en) * | 2008-03-28 | 2009-09-09 | 张淑茗 | Needle retraction type safety injector |
| CN201320334Y (en) * | 2008-12-18 | 2009-10-07 | 徐家华 | Return type safe self-destroying syringe |
| CN101898002A (en) * | 2009-05-26 | 2010-12-01 | 张淑茗 | Retraction structure of safety syringe |
| CN201987995U (en) * | 2010-12-29 | 2011-09-28 | 上海康德莱企业发展集团股份有限公司 | Push rod structure of self-destroying injector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014060A (en) * | 2014-06-18 | 2014-09-03 | 宁波圣宇瑞医疗器械有限公司 | Atomizer and atomization device |
| CN107982586B (en) * | 2017-12-27 | 2024-01-09 | 西安市第一医院 | Self-locking type negative pressure suction syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102836485B (en) | 2015-02-25 |
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