CN203694221U - Annular groove positioning type external transfusion conduit stopping switch - Google Patents
Annular groove positioning type external transfusion conduit stopping switch Download PDFInfo
- Publication number
- CN203694221U CN203694221U CN201320474377.1U CN201320474377U CN203694221U CN 203694221 U CN203694221 U CN 203694221U CN 201320474377 U CN201320474377 U CN 201320474377U CN 203694221 U CN203694221 U CN 203694221U
- Authority
- CN
- China
- Prior art keywords
- fittings body
- inner chamber
- joint pedestal
- stop valve
- annular groove
- 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 - Lifetime
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Abstract
The utility model relates to a device introducing medium into a human body and especially relates to an annular groove positioning type external transfusion conduit stopping switch mainly comprising a joint base seat and a joint body. The front end of the joint base seat is connected with a transfusion conduit or a transfusion component on a transfusion pipeline; the back end of the joint body is connected with the transfusion conduit; and the front segment of the joint body can be telescopically inserted into a cavity of the base seat in a slipping way. The annular groove positioning type external transfusion conduit stopping switch is advantageous in that a method of preventing negative pressure and eliminating negative pressure is simplified with effectiveness and convenient operation; due to introduction of a check valve, negative pressure can be eliminated and a transfusion channel can be stopped, so cleanness and safety are provided and pulling space of the joint body is provided and negative pressure is eliminated after transfusion is finished; with a process of the joint body being pulled and gradually checking, the check valve possesses a function of a flow adjusting valve; and arrangements of the annular groove and protrusions enable the joint body pulled in place to be effectively positioned and the joint body cannot be actuated due to mistaken actions.
Description
Technical field
This utility model relates to a kind ofly introduces the device in body by medium, the particularly external transfusion catheter fluid stopping of a kind of annular groove locate mode switch.
Background technology
In the time that clinical treatment is infused, need on transfusion catheter, put a flow-stopping clip using as fluid stopping switch, specifically illustrate visible accompanying drawing 1.In the time of transfusion end operation flow-stopping clip, conduit, another hands transverse shifting flow-stopping clip that need hold on the other hand flow-stopping clip two make the jaw clamp conduit of flow-stopping clip with fluid stopping.When operation, the meeting that the conduit at flow-stopping clip two is difficult to avoid is because of hand-held and oppressed, particularly the conduit of flow-stopping clip front (near the termination of human body) will produce negative pressure because of the relieving after this hand-held compressing, blood can flow backwards in conduit from blood vessel, cause blood coagulation obstruction conduit, cannot again infuse, serious may produce thrombosis, damages to sufferer.For remedy such and insufficient, do not going up after flow-stopping clip clamping conduit traditionally, flow-stopping clip need to be slided toward conduit tube component direction, make conduit be extruded gradually, drive refluence blood out of, but when flow-stopping clip and conduit clamp, resistance to sliding is large, drawing conduit, easily conduit is pulled out from jaw, cause larger negative pressure, also easily conduit is elongated and attenuated simultaneously, through repeatedly drawing, serious meeting is broken conduit and is caused hemorrhage, add that conduit tube component indwelling sticks on sufferer health, catheter length is limited, if drawing is careless, conduit tube component can be pulled out to sufferer health, occur for fear of above-mentioned accident, it is overcautious when medical worker operates, sometimes flow-stopping clip drawing length is inadequate, or can not guarantee conduit inner blood to drive totally completely.Therefore this mode of operation is loaded down with trivial details, it is large and still can not fully effective elimination negative pressure appearance that medical personnel's workload and psychological burden are all increased.
Utility model content
This utility model object is to overcome the deficiencies in the prior art part and provides a kind of can eliminate effective elimination negative pressure and the easy to operate external transfusion catheter fluid stopping of annular groove locate mode switch.
The purpose of this utility model realizes by following approach.
The external transfusion catheter fluid stopping of annular groove locate mode switch, its composition main points are: comprise joint pedestal and fittings body, joint pedestal front end or plug into transfusion catheter or plug into the transfusion member on infusion pipeline, fittings body rear end and transfusion catheter are plugged into, fittings body leading portion is plugged in joint pedestal inner chamber with scalable slip mode, between fittings body and joint pedestal inner chamber, there is the space that fittings body advances, in joint pedestal inner chamber, edge is circumferentially provided with a kind of cannelure, corresponding, on fittings body, on an Elastic plastic-rubber body, be provided with a kind of projection that embeds and exit this cannelure, the fittings body being advancing to the position, this projection just embeds in this cannelure, fittings body inner chamber is communicated with joint pedestal inner chamber by a kind of stop valve, this stop valve is arranged on the shutoff that above-mentioned fittings body advances in space and completes stop valve through the fittings body being advancing to the position.
Joint pedestal inner chamber forms an airtight die cavity like this, and the advance and retreat of utilizing fittings body axially to pass change airtight die cavity volume size.Fittings body is stepped back, and airtight die cavity increases; Fittings body advances, and airtight die cavity reduces, and is advancing to the position infusion channel cut-off.When transfusion work, fittings body is first stepped back, and stop valve is opened, and airtight die cavity increases, and is convenient to hold more liquid; Transfusion finishes needle tubing to be exited simultaneously, and fittings body advances, airtight die cavity from large to small, thereby fill up the space that produces negative pressure, prevent negative pressure or discharge conduit inner blood intravasation to eliminate negative pressure.This prevent negative pressure and eliminate the mode of negative pressure simple, effective, easy to operate.And the intervention of stop valve, in eliminating negative pressure, end again infusion channel, not only health, safety more, and (otherwise stop valve ends in the time that structure has been guaranteed again to infuse, must first to step back fittings body, cannot infuse), make transfusion finish space that rear fittings body has a propelling to eliminate negative pressure.And the process of gradually damming along with fittings body propelling makes stop valve also have the effect of flow control valve.And the setting of cannelure and projection is able to by effective location the fittings body being advancing to the position, be difficult for because of misoperation actuating armature body.
This external transfusion catheter fluid stopping switch can be widely used on transfusion device and on inlying catheter and on the conduit of other medical transfusion devices.
The purpose of this utility model can also realize by following approach.
Transfusion member on described infusion pipeline is the member in interior beyond transfusion catheter with infusion channel.On remaining needle, this transfusion member can be remaining needle catheter component.
Because cutoff switch is in joint pedestal, rather than directly on transfusion catheter, operate as flow-stopping clip, like this, make this fluid stopping switch described in the utility model can infinitely approach forward or backward other members on infusion pipeline, thereby the cross-over connection of clipped transfusion catheter is plugged into, make infusion set overall structure compacter.
About the further optimization of this projection is:
This projection is circumferential or continuous distribution or interruption distribution along fittings body.
This projection is preferably disposed on fittings body end.
This projection is preferably disposed on fittings body end, and the sawing vertically of fittings body termination is fluted.
This groove make fittings body termination to inside contract space larger, thereby strengthened the elastic space of fittings body termination.
This projection is maximum rounding radially, its leading flank be a kind of can stop into vertical plane, its trailing flank is a kind of inclined-plane that facilitates this projection to exit, cannelure section configuration and this projection section configuration conjugation.
Further optimize and be:
Fittings body leading portion and joint pedestal inner chamber have sealing ring, and carry out being connected with damping through the sealing ring between the two.
Thisly both can realize sealing with being connected of damping, also can strengthen feel can viscous fittings body.
Further optimization about stop valve is:
The flap of stop valve is positioned at fittings body termination, and stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall.
Like this, fittings body is again valve rod.
Further optimization can be following several concrete structure, and wherein also one is:
Fittings body inner chamber comprises vertical passageway and interconnection, rear end, vertical passageway is communicated with transfusion catheter, front end is blind to be stopped and is communicated with interconnection, interconnection is arranged in fittings body end inner core, fittings body end is less than joint pedestal inner chamber, gap between the two is communicated with interconnection as infusion channel, fittings body termination is a kind of taper the flap as stop valve, it is a kind of truncated cone-shaped step corresponding with this taper the sealing surface as stop valve that joint pedestal inner chamber stops into wall, and the interior reducing of this truncated cone-shaped step is infusion channel mouth.
In the time that fittings body cone-shaped end touches with corresponding type conical bench, stop valve closure; And retreat when fittings body, stop valve is opened, and transfusion enters reducing in type conical bench via fittings body vertical passageway, interconnection, radial clearance.
Or be more specifically:
Joint pedestal inner chamber is a kind of stairstepping, corresponding fittings body is also a kind of multidiameter shape the corresponding position socket with joint pedestal inner chamber, in the time of fittings body retrude, the joint pedestal inner chamber correspondence in the Yu great footpath, fittings body end of path, gap between the two is communicated with interconnection as infusion channel, now, the spline position of fittings body end is still socketed and is supporting fittings body with the joint pedestal inner chamber of path, but the colored groove cross-over connection at spline position is being communicated with gap and joint pedestal inner chamber and and then is being able to be communicated with the transfusion catheter in joint pedestal front.
Another kind is:
Fittings body inner chamber comprises vertical passageway, flap is a kind of a plurality of elasticity gates that are coated on fittings body termination, it is a kind of and the close-shaped corresponding step of these a plurality of elasticity gates that joint pedestal inner chamber stops into wall, step internal orifice is infusion channel, through with the touching of this step, the closed and shutoff of a plurality of elasticity gates terminates in fittings body vertical passageway mouth.
Like this, fittings body is advancing to the position, elasticity gate closure, stop valve cut-off; Fittings body retreats and lifts, and elasticity gate is opened because of self elasticity, and stop valve is opened.
Also have one to be:
Fittings body inner chamber comprises vertical passageway, flap is positioned at the vertical passageway mouth of fittings body termination, it is that a kind of middle part is toward prominent protruding sharp cone distal or the truncated cone-shaped of fittings body direction that joint pedestal inner chamber stops into wall, this stops and on the circumferential position of mouth periphery, vertical passageway, is distributed with a plurality of infusion channel into wall, through the propelling of fittings body, the stopping of this sharp cone distal or truncated cone-shaped extend into fittings body vertical passageway into the prominent protruding middle part of wall and shutoff terminates in this vertical passageway mouth.
Owing to stopping the periphery that is positioned at vertical passageway mouth into the infusion channel on wall, be positioned at the region beyond the mouth bore of vertical passageway, like this, when stopping into the prominent protruding middle part shutoff of wall during at vertical passageway mouth, this stops into the infusion channel on wall and cannot be communicated with vertical passageway, thereby is cut off.
Have again one to be:
Fittings body front end is coated with a kind of plastic body, this plastic body leading portion is truncated cone-shaped, back segment is short cylindrical shape, corresponding position in joint pedestal inner chamber and this shape conjugation, this plastic body and this conjugate resonator composition stop valve, wherein this plastic body is stop valve clack, and this conjugate resonator is stop valve sealing surface, this plastic body and this conjugate resonator tight fit connection, utilize the elasticity of plastic body to be clamp-oned in this conjugate resonator, thereby turn-offing in stop valve again anchor tip pedestal and lift head relatively.
Further optimize and be:
Before and after fittings body inner chamber, run through, its rear end is communicated with transfusion catheter tube chamber, after its front end is coated by plastic body, end into blind hole, this passage is vertical passageway, radially run through a passage composition interconnection at vertical passageway blind hole end, joint pedestal inner chamber after this conjugate resonator is ladder and amplifies, and the plastic body retreating has gap therewith between cascaded surface, this gap cross-over connection interconnection and the transfusion catheter tube chamber of plugging into joint pedestal inner chamber.
In sum, this utility model compared to existing technology tool have the following advantages: prevent negative pressure and eliminate the mode of negative pressure simple, effective, easy to operate.And the intervention of stop valve, in eliminating negative pressure, end again infusion channel, not only health, safety more, and (otherwise stop valve ends in the time that structure has been guaranteed again to infuse, must first to step back fittings body, cannot infuse), make transfusion finish space that rear fittings body has a propelling to eliminate negative pressure.And the process of gradually damming along with fittings body propelling makes stop valve also have the effect of flow control valve.And the setting of cannelure and projection is able to by effective location the fittings body being advancing to the position, be difficult for because of misoperation actuating armature body.
Accompanying drawing explanation
Fig. 1 is that in prior art, a kind of flow-stopping clip is folded in the structural representation on non small cellCatheter;
Fig. 2 is that the external transfusion catheter fluid stopping of annular groove locate mode switch uses the structural representation on remaining needle under cut-off state described in this utility model most preferred embodiment; Fig. 3 is the enlarged diagram of the external transfusion catheter fluid stopping of the annular groove locate mode switch in Fig. 2;
Fig. 4 is the structural representation axonometric chart of the fittings body in the external transfusion catheter fluid stopping of annular groove locate mode switch described in this utility model most preferred embodiment;
Fig. 5 is that the external transfusion catheter fluid stopping of annular groove locate mode switch uses the structural representation on remaining needle under opening described in this utility model most preferred embodiment.
Label declaration
1 conduit tube component 2 fittings body 21 vertical passageway 22 interconnection 23 gap 24 spline 25 projection 26 groove 3 joint pedestal 31 cannelure 4 transfusion catheter 5 seal rubber plug 6 sealing ring 7 stop valve 71 flap 72 sealing surfaces.
The specific embodiment
Most preferred embodiment:
With reference to Fig. 2 and Fig. 5, a kind of remaining needle that uses the external transfusion catheter fluid stopping of annular groove locate mode described in the utility model switch, is made up of conduit tube component 1, fittings body 2, joint pedestal 3, transfusion catheter 4 and seal rubber plug 5 etc.
With reference to Fig. 3 and Fig. 4, the external transfusion catheter fluid stopping of annular groove locate mode switch, comprise joint pedestal 3, fittings body 2, sealing ring 6 and stop valve 7, joint pedestal 3 front ends and transfusion catheter 4 are plugged into, fittings body 2 rear ends and transfusion catheter 4 are plugged into, fittings body 2 leading portions are plugged in joint pedestal 3 inner chambers with scalable slip mode, between fittings body 2 and joint pedestal 3 inner chambers, there is the space that fittings body 2 advances, in joint pedestal 3 inner chambers, edge is circumferentially provided with a kind of cannelure 31, corresponding, on fittings body 2, on an Elastic plastic-rubber body, be provided with a kind of projection 25 that embeds and exit this cannelure 31, the fittings body 2 being advancing to the position, this projection 25 just embeds in this cannelure 31, fittings body 2 inner chambers are communicated with joint pedestal 3 inner chambers by a kind of stop valve 7, this stop valve 7 is arranged on the shutoff that above-mentioned fittings body 2 advances in space and completes stop valve 7 through the fittings body 2 being advancing to the position.
The flap 71 of stop valve 7 is positioned at fittings body 2 terminations, and stop valve sealing surface 72 is positioned at joint pedestal inner chamber to be stopped on wall.Like this, fittings body 2 is again valve rod.Fittings body 2 is made up of a kind of plastic body, its front end is truncated cone-shaped, corresponding position in joint pedestal 3 inner chambers and this shape conjugation, this truncated cone-shaped termination and this conjugate resonator composition stop valve 7, wherein this truncated cone-shaped termination is stop valve clack 71, this conjugate resonator is stop valve sealing surface 72, and this truncated cone-shaped termination and this conjugate resonator tight fit connection, utilize the elasticity of plastic body and the groove 26 that set to the concave by termination is vertically clamp-oned in this conjugate resonator.Rear portion, truncated cone-shaped termination is a kind of spline 24 positions, the radially maximum of this spline is exactly described projection 25, radially maximum rounding of this projection 25, its leading flank be a kind of can stop into vertical plane, its trailing flank is a kind of inclined-plane that facilitates this projection 25 to exit, cannelure 31 section configurations and this projection 25 section configuration conjugation.When truncated cone-shaped termination front end face and joint pedestal inner chamber stop while contacting into wall, stop valve 7 ends, and simultaneously this projection 25 just slip into from cannelure 31 inclined-planes by its rounding this cannelure 31 and with these cannelure 31 conjugation interlockings, thereby in turn-offing stop valve 7 anchor tip pedestal 3 and fittings body 2 relatively again.
Fittings body 2 inner chambers comprise vertical passageway 21 and interconnection 22, 21 rear ends, vertical passageway are communicated with transfusion catheter 4, front end is blind to be stopped and is communicated with interconnection 22, interconnection 22 is arranged in fittings body 2 end inner cores, joint pedestal 3 inner chambers are a kind of stairstepping, corresponding fittings body 2 is also a kind of multidiameter shape the corresponding position socket with joint pedestal 3 inner chambers, in the time of fittings body 2 retrude, the joint pedestal 3 inner chamber correspondences in the fittings body 2 Yu great footpaths, end of path, gap 23 between the two is communicated with interconnection 22 as infusion channel, now, spline 24 positions of fittings body 2 ends are still socketed and are supporting fittings body 2 with joint pedestal 3 inner chambers of path, but the colored groove cross-over connection at spline 24 positions is being communicated with gap 23 and joint pedestal 3 inner chambers and and then is being able to be communicated with the transfusion catheter 4 in joint pedestal 3 fronts.
Fittings body 2 leading portions and joint pedestal 3 inner chambers have sealing ring 6, and carry out being connected with damping through the sealing ring 6 between the two.Both can realize sealing with being connected of damping, also can strengthen feel also can viscous fittings body.
It is same as the prior art that the present embodiment is not stated part.
Claims (15)
1. the external transfusion catheter fluid stopping of annular groove locate mode switch, it is characterized in that, comprise joint pedestal and fittings body, joint pedestal front end or plug into transfusion catheter or plug into the transfusion member on infusion pipeline, fittings body rear end and transfusion catheter are plugged into, fittings body leading portion is plugged in joint pedestal inner chamber with scalable slip mode, between fittings body and joint pedestal inner chamber, there is the space that fittings body advances, in joint pedestal inner chamber, edge is circumferentially provided with a kind of cannelure, corresponding, on fittings body, on an Elastic plastic-rubber body, be provided with a kind of projection that embeds and exit this cannelure, the fittings body being advancing to the position, this projection just embeds in this cannelure, fittings body inner chamber is communicated with joint pedestal inner chamber by a kind of stop valve, this stop valve is arranged on the shutoff that above-mentioned fittings body advances in space and completes stop valve through the fittings body being advancing to the position.
2. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, is characterized in that, the transfusion member on described infusion pipeline is the member in interior beyond transfusion catheter with infusion channel.
3. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 and 2 switch, is characterized in that, the transfusion member on described infusion pipeline is remaining needle catheter component on remaining needle.
4. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, is characterized in that, this projection is circumferential or continuous distribution or interruption distribution along fittings body.
5. according to the external transfusion catheter fluid stopping of the annular groove locate mode switch described in claim 1 or 4, it is characterized in that, this projection is arranged on fittings body end.
6. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, is characterized in that, this projection is preferably disposed on fittings body end, and the sawing vertically of fittings body termination is fluted.
7. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, it is characterized in that, this projection is maximum rounding radially, its leading flank be a kind of can stop into vertical plane, its trailing flank is a kind of inclined-plane that facilitates this projection to exit, cannelure section configuration and this projection section configuration conjugation.
8. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, is characterized in that, fittings body leading portion and joint pedestal inner chamber have sealing ring, and carry out being connected with damping through the sealing ring between the two.
9. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, is characterized in that, the flap of stop valve is positioned at fittings body termination, and stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall.
10. the external transfusion catheter fluid stopping of annular groove locate mode according to claim 1 switch, it is characterized in that, the flap of stop valve is positioned at fittings body termination, stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall, fittings body inner chamber comprises vertical passageway and interconnection, rear end, vertical passageway is communicated with transfusion catheter, front end is blind to be stopped and is communicated with interconnection, interconnection is arranged in fittings body end inner core, fittings body end is less than joint pedestal inner chamber, gap between the two is communicated with interconnection as infusion channel, fittings body termination is a kind of taper the flap as stop valve, it is a kind of truncated cone-shaped step corresponding with this taper the sealing surface as stop valve that joint pedestal inner chamber stops into wall, the interior reducing of this truncated cone-shaped step is infusion channel mouth.
The external transfusion catheter fluid stopping of 11. annular groove locate mode according to claim 10 switch, it is characterized in that, joint pedestal inner chamber is a kind of stairstepping, corresponding fittings body is also a kind of multidiameter shape the corresponding position socket with joint pedestal inner chamber, in the time of fittings body retrude, the joint pedestal inner chamber correspondence in the Yu great footpath, fittings body end of path, gap between the two is communicated with interconnection as infusion channel, now, the spline position of fittings body end is still socketed and is supporting fittings body with the joint pedestal inner chamber of path, but the colored groove cross-over connection at spline position is being communicated with gap and joint pedestal inner chamber and and then is being able to be communicated with the transfusion catheter in joint pedestal front.
The external transfusion catheter fluid stopping of 12. annular groove locate mode according to claim 1 switch, it is characterized in that, the flap of stop valve is positioned at fittings body termination, stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall, fittings body inner chamber comprises vertical passageway, flap is a kind of a plurality of elasticity gates that are coated on fittings body termination, it is a kind of and the close-shaped corresponding step of these a plurality of elasticity gates that joint pedestal inner chamber stops into wall, step internal orifice is infusion channel, through with the touching of this step, the closed also shutoff of a plurality of elasticity gates terminates in fittings body vertical passageway mouth.
The external transfusion catheter fluid stopping of 13. annular groove locate mode according to claim 1 switch, it is characterized in that, the flap of stop valve is positioned at fittings body termination, stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall, fittings body inner chamber comprises vertical passageway, flap is positioned at the vertical passageway mouth of fittings body termination, it is that a kind of middle part is toward prominent protruding sharp cone distal or the truncated cone-shaped of fittings body direction that joint pedestal inner chamber stops into wall, this stops and on the circumferential position of mouth periphery, vertical passageway, is distributed with a plurality of infusion channel into wall, through the propelling of fittings body, the stopping of this sharp cone distal or truncated cone-shaped extend into fittings body vertical passageway into the prominent protruding middle part of wall and shutoff terminates in this vertical passageway mouth.
The external transfusion catheter fluid stopping of 14. annular groove locate mode according to claim 1 switch, it is characterized in that, the flap of stop valve is positioned at fittings body termination, stop valve sealing surface is positioned at joint pedestal inner chamber to be stopped on wall, fittings body front end is coated with a kind of plastic body, this plastic body leading portion is truncated cone-shaped, back segment is short cylindrical shape, corresponding position in joint pedestal inner chamber and described plastic body leading portion shape conjugation, this plastic body and this conjugate resonator composition stop valve, wherein this plastic body is stop valve clack, this conjugate resonator is stop valve sealing surface, this plastic body and this conjugate resonator tight fit connection, utilize the elasticity of plastic body to be clamp-oned in this conjugate resonator, thereby turn-offing in stop valve again anchor tip pedestal and lift head relatively.
The external transfusion catheter fluid stopping of 15. annular groove locate mode according to claim 14 switch, it is characterized in that, before and after fittings body inner chamber, run through, its rear end is communicated with transfusion catheter tube chamber, after its front end is coated by plastic body, end into blind hole, this passage is vertical passageway, radially run through a passage composition interconnection at vertical passageway blind hole end, joint pedestal inner chamber after this conjugate resonator is ladder and amplifies, the plastic body retreating has gap therewith between cascaded surface, this gap cross-over connection interconnection and the transfusion catheter tube chamber of plugging into joint pedestal inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474377.1U CN203694221U (en) | 2013-08-03 | 2013-08-03 | Annular groove positioning type external transfusion conduit stopping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474377.1U CN203694221U (en) | 2013-08-03 | 2013-08-03 | Annular groove positioning type external transfusion conduit stopping switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203694221U true CN203694221U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474377.1U Expired - Lifetime CN203694221U (en) | 2013-08-03 | 2013-08-03 | Annular groove positioning type external transfusion conduit stopping switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203694221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133017A1 (en) * | 2017-01-20 | 2018-07-26 | 福建省百仕韦医用高分子股份有限公司 | Reusable indwelling cannula component for preventing blood backflow |
-
2013
- 2013-08-03 CN CN201320474377.1U patent/CN203694221U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133017A1 (en) * | 2017-01-20 | 2018-07-26 | 福建省百仕韦医用高分子股份有限公司 | Reusable indwelling cannula component for preventing blood backflow |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |