CN203802874U - Medical transfusion joint with stop valve - Google Patents
Medical transfusion joint with stop valve Download PDFInfo
- Publication number
- CN203802874U CN203802874U CN201320474868.6U CN201320474868U CN203802874U CN 203802874 U CN203802874 U CN 203802874U CN 201320474868 U CN201320474868 U CN 201320474868U CN 203802874 U CN203802874 U CN 203802874U
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- stop valve
- fittings body
- inner chamber
- joint
- joint pedestal
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Abstract
The utility model relates to an apparatus introducing medium into human body and especially relates to a medical transfusion joint with a stop valve. The medical transfusion joint is connected with an external detention conduit. The medical transfusion joint is characterized by further comprising a joint base seat and the stop valve, wherein the joint base seat and a connection seat are constructed in an integral or a split way but fixedly connected with the connection seat; and an inner cavity of a joint body is communicated with the inner cavity of the connection seat via the stop valve. The medical transfusion joint with the stop valve is advantaged by simple, effect and convenient negative pressure resistance and elimination; with the stop valve, negative pressure can be eliminated and a transfusion channel can be stopped; safety and cleanness are provided; after transfusion is over, a stop valve rod is provided with pushing space for negative pressure elimination; with pushing of the stop valve rod and gradual stopping, a function of a flow control valve is provided for the stop valve; and with the split construction method of the joint body and the stop valve rod, transfusion work and stop work can be performed at the same time and no mutual effect is caused, so more convenient use is achieved.
Description
Technical field
This utility model relates to a kind ofly introduces the device in body by medium, particularly a kind of medical infusion joint with stop valve of plugging into non small cellCatheter.
Background technology
In clinical treatment, in the time that needs of patients is repeatedly infused, conventionally can use non small cellCatheter, the mode of connecing of refuting of people's non small cellCatheter and transfusion device is divided into and has pin and needleless to refute to connect.One of the prior art has pin to refute the mode of connecing as shown in Figure 1, and medical infusion joint is made up of Connection Block 1 and the fittings body 2 affixed with it, and this fittings body 2 that has pin to refute to connect is called again calparine cap conventionally.Transfusion device needle tubing inserts from the seal rubber plug at fittings body 2 tops.Transfusion ends when extracting transfusion device needle tubing, thereby the former space occupying of needle tubing approaches vacuum and in inlying catheter, produces multiple pressure, blood can flow backwards in inlying catheter from blood vessel, refluence blood causes blood coagulation to stop up inlying catheter, cannot again infuse, serious may produce thrombosis, damages to sufferer.Therefore, medical worker conventionally need to get a tube sealing syringe with puncture needle tubing inlying catheter is rinsed to tube sealing, when tube sealing operation, syringe needle tube penetrates from calparine cap plug, enter calparine cap inner chamber, must occupy calparine cap intracavity space, and tube sealing is while finishing, medical worker needs limit to withdraw from syringe needle tube edge to inject tube-sealing solution, replenish the space that needle tubing occupies, in order to avoid form multiple pressure in inlying catheter.This complex operation and the space that still can residual tube-sealing solution finally cannot fill up, negative pressure still can produce, for remedy such and insufficient, do not going up after flow-stopping clip clamping extension tube traditionally, flow-stopping clip need to be slided toward conduit tube component direction, make extension tube be extruded gradually, prolongation liquid in pipe is clamp-oned to inlying catheter inner chamber, drive refluence blood out of, but when flow-stopping clip and extension tube clamp, resistance to sliding is large, drawing extension tube, easily extension tube is elongated and attenuated, conduit tube component is during indwelling, through repeatedly drawing, serious meeting is broken extension tube and is caused hemorrhage, add that conduit tube component indwelling sticks on sufferer health, extension tube limited length, 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 ensure conduit inner blood to drive totally completely, medical personnel's workload and psychological burden are increased therefore this mode of operation is invisible.
Utility model content
This utility model object is to overcome the deficiencies in the prior art part and a kind of negative pressure and easy to operate medical infusion joint with stop valve can eliminated is provided, further object of the present utility model be to provide a kind of infuse operation and cut-off operation to operate respectively simultaneously and be difficult for each other occurring that operation is disturbed, use the convenient medical infusion joint with stop valve.
The purpose of this utility model realizes by following approach.
There is the medical infusion joint of stop valve, comprise Connection Block and fittings body, Connection Block front end or plug into the extension tube of inlying catheter or plug into tube for transfusion, fittings body rear end and transfusion device are plugged into, its composition main points are: also comprise a kind of joint pedestal and a kind of stop valve, this joint pedestal or with Connection Block Construction integration or split structure but affixed with Connection Block, fittings body inner chamber is communicated with Connection Block inner chamber by a kind of stop valve, stop valve valve rod is nested with in joint pedestal inner chamber in the mode that can advance and retreat, stop valve valve or be arranged in joint pedestal inner chamber or be arranged in Connection Block inner chamber or be arranged in fittings body inner chamber, close or Open valve through the stop valve valve rod that is advancing to the position and retreats.
Joint pedestal and Connection Block inner chamber form an airtight die cavity like this, utilize stop valve stem shaft to change airtight die cavity volume size to the advance and retreat of passing.Stop valve valve rod is stepped back, and airtight die cavity increases; Stop valve valve rod advances, and airtight die cavity reduces, and is advancing to the position infusion channel cut-off.When transfusion work, stop valve valve rod 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 stop valve valve rod advances, airtight die cavity from large to small, thereby fill up the space that former needle tubing occupies, 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 stop valve valve rod, cannot infuse), make transfusion finish space that rear stop valve valve rod has a propelling to eliminate negative pressure.And the process of gradually damming along with the propelling of stop valve valve rod makes stop valve also have the effect of flow control valve.
The purpose of this utility model can also realize by following approach.
No matter be needleless connection modes or have pin connection modes can use this medical infusion joint described in the utility model, be i.e. described fittings body or a kind of needleless joint or one has needle adapter.
Structural relation between fittings body and stop valve valve rod and the positional structure relation of joint pedestal and Connection Block can further be optimized for:
Fittings body and stop valve valve-stem integrated structure, the structure of plugging into transfusion device on fittings body is positioned at the tail end of stop valve valve rod, stop valve valve rod has inner chamber and is communicated with Connection Block inner chamber by stop valve valve as fittings body inner chamber, now, Connection Block or extend axially and distribute or along the direction distribution axially intersecting with joint pedestal along joint pedestal.
The frame mode of this fittings body and stop valve valve-stem integrated structure makes designs simplification.
Or:
Fittings body and stop valve valve rod split structure, fittings body or affixed or affixed with Connection Block with joint pedestal.
The frame mode of this fittings body and stop valve valve rod split structure, can operate respectively transfusion operation and cut-off operation simultaneously and be difficult for that each other operation occurs and disturb, and use is by convenient.
Can further be optimized for about this split structure:
Positional structure relation between fittings body, joint pedestal and Connection Block three is a kind of threeway structure, now, or fittings body and joint pedestal on same axis Connection Block the two intersects with this, or fittings body and Connection Block on same axis joint pedestal the two intersects with this, or Connection Block and joint pedestal on same axis fittings body the two intersects with this.
Stop valve valve rod can have various ways to be nested with in joint pedestal inner chamber:
Also include the device that a kind of adjustable diameter and screw adjusting is axially passed, the mode and the joint pedestal that are able to advancing and retreat through this device stop valve valve rod are socketed.
The device of axially passing by adjustable diameter and screw adjusting is like this realized the axial passing of stop valve valve rod opposing tabs pedestal and retreats.
The device that adjustable diameter and screw adjusting is axially passed has multiple concrete structure available, wherein two kinds of following discloses, and Yi Zhongshi:
Stop valve valve rod is plugged in joint pedestal inner chamber and with joint pedestal spiral and is connected.
Like this, rotate stop valve valve rod by stop valve valve rod opposing tabs pedestal helical rotation, thereby allow, stop valve valve rod opposing tabs pedestal is spiral to advance and spiral retreating.
The front of stop valve valve rod and joint pedestal spiral linkage section is provided with a kind of inner seal liner.
Another concrete structure of the device that above-mentioned adjustable diameter and screw adjusting is axially passed can be:
Stop valve valve rod is made up of screw rod and lift head, screw rod leading portion is plugged in lift head inner chamber and with its spiral and is connected, screw rod is also connected with joint pedestal axial limiting, and lift head is nested with in the inner chamber of joint pedestal in the mode of slippage before and after can opposing tabs pedestal.
Like this, because screw rod is by axial limiting, helical rotation is broken down into idle running and moves forward and backward, and wherein dallies and is completed by screw rod, moves forward and backward and is completed by lift head.This structure is especially applicable to being applied on the frame mode of fittings body and stop valve valve-stem integrated structure, the seal rubber plug of now plugging into needle tubing or be positioned at screw rod tail end or be positioned at lift head tail end.
Except the device that adjustable diameter and screw adjusting is axially passed, stop valve valve rod can also be nested with by this way in joint pedestal inner chamber:
Stop valve valve rod is plugged in joint pedestal inner chamber with scalable slip mode, and stop valve valve rod and joint pedestal inner chamber 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.
Also include and be a kind ofly difficult to axially displaced bayonet unit for limiting the stop valve valve rod that slippage puts in place again, this bayonet unit is arranged between stop valve valve rod and joint pedestal inner chamber.
The stop valve valve rod of no matter stepping back or advance once slippage puts in place, wished no longer to slide that this stop valve valve rod, bayonet unit can be used for locating stop valve valve rod and make it difficult axially displaced voluntarily before infusing operation next time.
This bayonet unit has multiple concrete structure available, wherein two kinds of following discloses, and Yi Zhongshi:
Bayonet unit is a kind of Elastic buckle, is made up of the draw-in groove clamping putting in place through pretightning force buckle and the slippage of spring the buckle, spring and the corresponding draw-in groove being arranged on stop valve valve rod sidewall that are embedded on joint pedestal sidewall.
This Elastic buckle can be realized location, can under the effect of push-pull effort, depart from clamping again.
Another kind is:
Stop valve valve rod is plugged in joint pedestal inner chamber with scalable slippage and rotary way, bayonet unit is made up of bayonet lock and sliding tray, bayonet lock emergence is on fittings body sidewall, sliding tray correspondence is arranged on joint pedestal intracavity sidewall, sliding tray is made up of axial groove and transverse groove, the bayonet lock head of emergence slides in sliding tray, pass the stop valve valve rod that puts in place along axial groove through rotating that sliding sleeve enters in transverse groove and with the axial clamping of joint pedestal.
Transverse groove has gradient, but oblique angle is less than Self-locking angle.
Gradient is convenient to be guided into axial groove, and be less than Self-locking angle can prevent its under the effect of axial force from line slip.
Further optimization about stop valve is:
The flap of stop valve is positioned at stop valve valve rod termination, stop valve sealing surface or be positioned at joint pedestal inner chamber and stop on wall or be positioned at Connection Block inner chamber and stop on wall or be positioned at fittings body inner chamber and stop on wall.
Flap and sealing surface touch joint and are valve.
Further optimization about stop valve valve is:
Stop valve valve rod termination is a kind of sharp cone distal, and it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that corresponding inner chamber stops into wall, and the interior reducing of this truncated cone-shaped step is infusion channel mouth.
In the time that stop valve valve rod sharp cone distal termination touches with corresponding type conical bench, stop valve closure; Retreat and work as stop valve valve rod, stop valve is opened, and transfusion enters reducing in type conical bench.
Or:
Stop valve valve rod end outer peripheral face is coated with sealing ring, and this sealing ring outer peripheral face is as flap, and stop valve sealing surface is positioned at the infusion channel mouth vertical with valve rod.
In the time of fittings body and stop valve valve-stem integrated structure, stop valve and corresponding infusion channel can further be optimized following several concrete structure:
Fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, fittings body inner chamber comprises vertical passageway and 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 sharp cone distal, it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that joint pedestal inner chamber or Connection Block inner chamber stop into wall, and the interior reducing of this truncated cone-shaped step is infusion channel mouth.
In the time that fittings body sharp cone distal termination 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.
Fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, 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 or Connection Block inner chamber stop 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.
Fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, 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 or Connection Block inner chamber stop 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.
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 stop valve valve rod, cannot infuse), make transfusion finish space that rear stop valve valve rod has a propelling to eliminate negative pressure.And the process of gradually damming along with the propelling of stop valve valve rod makes stop valve also have the effect of flow control valve.And the frame mode of fittings body and stop valve valve rod split structure can operate respectively transfusion operation and cut-off operation and be difficult for that each other operation occurs and disturb simultaneously, use is by convenient.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of remaining needle in prior art.
Fig. 2 is the containing needle structure schematic diagram that uses the medical infusion joint with stop valve described in the utility model.
Fig. 3 be the medical infusion joint described in this utility model embodiment mono-with stop valve cut-off state structural representation.
Fig. 4 has the medical infusion joint of stop valve at the structural representation of opening described in this utility model embodiment mono-.
Fig. 5 is the structural representation described in this utility model embodiment bis-with the medical infusion joint of stop valve.
Fig. 6 is that the A of Fig. 5 is to view.
Fig. 7 is the structural representation described in this utility model embodiment tri-with the medical infusion joint of stop valve.
Fig. 8 is the structural representation described in this utility model embodiment tetra-with the medical infusion joint of stop valve.
Fig. 9 is the structural representation described in this utility model embodiment five with the medical infusion joint of stop valve.
Figure 10 is the structural representation described in this utility model embodiment six with the medical infusion joint of stop valve.
Figure 11 is the structural representation described in this utility model embodiment seven with the medical infusion joint of stop valve.
Figure 12 is the structural representation described in this utility model most preferred embodiment with the medical infusion joint of stop valve.
Label declaration
1 Connection Block 11 infusion channel 2 fittings body 21 screw rod 22 lift head 23 vertical passageway 24 bayonet lock 25 interconnection 26 gap 27 stop collars
3 joint pedestal 31 adjustable screw devices 32 screw screw 33 sliding tray 4 stop valve 41 flap 42 sealing surface 43 valve rod 5 seal rubber plug 6 extension tube 7 flow-stopping clip 8 conduit tube component 9 joint overcoats.
Detailed description of the invention
Embodiment mono-:
With reference to Fig. 2, a kind of remaining needle that uses the medical infusion joint with stop valve described in the utility model, is made up of Connection Block 1, fittings body 2, joint pedestal 3, seal rubber plug 5, extension tube 6, flow-stopping clip 7 and conduit tube component.
With reference to Fig. 3 and Fig. 4, there is the medical infusion joint of stop valve, fittings body 2 and stop valve valve rod 43 Construction integrations, stop valve valve rod 43 is fittings body 2, and Connection Block 1 extends axially and distributes along joint pedestal 3.Comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block front end and inlying catheter is plugged into, and joint pedestal 3 is with Connection Block 1 split structure but to screw screw 32 by one affixed with Connection Block 1.Fittings body 2 leading portions are plugged in joint pedestal 3 inner chambers and by a kind of adjustable screw device 31 and are connected with joint pedestal 3 spirals, between between fittings body 2 and joint pedestal 3 inner chambers, have the space that fittings body 2 adjustable diameter and screw adjusting are axially passed, fittings body 2 inner chambers are communicated with Connection Block inner chamber by a kind of stop valve 4.Joint pedestal 3 inner chambers are a kind of pre-small post-large ladder die cavity, and large-scale cavity wall back segment arranges advance and retreat female thread and is connected with fittings body 2 scalable spirals.The step at size die cavity junction surface is that one is stopped into wall.The flap 41 of stop valve 4 is positioned at fittings body termination, and sealing surface 42 is that this of joint pedestal inner chamber stops into wall.Fittings body 2 inner chambers comprise vertical passageway 23, flap 41 is a kind of two 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, the little die cavity of step internal orifice is infusion channel, through with the touching of this step, the closed and shutoff of two elasticity gates terminate in 23 mouthfuls of fittings body vertical passageways.This elasticity gate is made up of flexible barrier material, its back segment encircles in the form of a ring and encloses in the seal groove that is fixed on fittings body 2 peripheries, end and form a kind of sealing ring, thereby allows fittings body 2 leading portions and joint pedestal 3 inner chambers carry out being connected with damping through sealing circle.Above-mentioned adjusting screw thread is a kind of trapezoidal thread.
It is same as the prior art that the present embodiment is not stated part.
Embodiment bis-:
With reference to Fig. 5, there is the medical infusion joint of stop valve, fittings body 2 and stop valve valve rod 43 Construction integrations, stop valve valve rod 43 is fittings body 2, and Connection Block 1 extends axially and distributes along joint pedestal 3.Comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block 1 front end and inlying catheter is plugged into, and fittings body 2 rear ends and transfusion device are plugged into, and joint pedestal 3 is with Connection Block 1 split structure but to screw screw 32 by one affixed with Connection Block 1.Between fittings body 2 and joint pedestal 3 inner chambers, there is the space that fittings body 2 advances, fittings body 2 inner chambers are communicated with Connection Block inner chamber by a kind of stop valve 4, and this stop valve 4 is arranged on above-mentioned fittings body 2 and advances in space and through the fittings body 2 being advancing to the position and stop into wall and end and touch with corresponding inner chamber.Joint pedestal 3 inner chambers are a kind of pre-small post-large ladder die cavity, and fittings body 2 leading portions are plugged in this large die cavity with scalable slippage and rotary way, and carry out being connected with damping through the sealing ring between the two.The step at size die cavity junction surface is exactly aforesaid stopping into wall.The flap 41 of stop valve 4 is positioned at fittings body termination, and sealing surface 42 is exactly that this stops into wall, and fittings body 2 is again valve rod.Fittings body 2 inner chambers comprise vertical passageway 23 and interconnection 25, interconnection 25 is arranged in fittings body 2 end inner cores, fittings body 2 ends are less than joint pedestal inner chamber, gap 26 between the two is communicated with interconnection 25 as infusion channel, fittings body 2 terminations are a kind of sharp cone distal, aforementioned to stop into wall be a kind of truncated cone-shaped step corresponding with this sharp cone distal, and the interior reducing of this truncated cone-shaped step is infusion channel mouth.
In the time that fittings body 2 sharp cone distal terminations touch 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 23, interconnection 25, radial clearance 26.
With reference to Fig. 6, bayonet unit is made up of bayonet lock 24 and sliding tray 33, bayonet lock 24 emergences are on fittings body 2 sidewalls, sliding tray 33 correspondences are arranged on joint pedestal 3 intracavity sidewalls and run through sidewall, sliding tray 33 is made up of axial groove and transverse groove, 24 of the bayonet locks of emergence slide in sliding tray 33, pass the fittings body 2 that puts in place along axial groove through rotating that sliding sleeve enters in transverse groove and with the axial clamping of joint pedestal 3.Transverse groove has gradient, but oblique angle is less than Self-locking angle.
It is identical with embodiment mono-that the present embodiment is not stated part.
Embodiment tri-:
With reference to Fig. 7, there is the medical infusion joint of stop valve, fittings body 2 and stop valve valve rod 43 Construction integrations, stop valve valve rod 43 is fittings body 2, and Connection Block 1 extends axially and distributes along joint pedestal 3.Comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block 1 front end and inlying catheter is plugged into, and fittings body 2 rear ends and transfusion device are plugged into, and joint pedestal 3 is with Connection Block 1 split structure but to screw screw 32 by one affixed with Connection Block 1.Between fittings body 2 and joint pedestal 3 inner chambers, there is the space that fittings body 2 advances, fittings body 2 inner chambers are communicated with Connection Block inner chamber by a kind of stop valve 4, and this stop valve 4 is arranged on above-mentioned fittings body 2 and advances in space and through the fittings body 2 being advancing to the position and stop into wall and end and touch with corresponding inner chamber.The darker cannelure of fittings body 2 front end indent one, the stem stem of this cannelure inner side slides in the opening up inner chamber of joint pedestal 3 back segments, the external groove sidevall of this cannelure arranges screw thread and connects with the corresponding spiral of external screw thread on joint pedestal back segment periphery wall, and this spiral connects to form adjustable screw device 31.And fittings body 2 leading portions are trapped in the inner chamber of stop collar 27, stop collar 27 rear end faces are provided with spacing seam, and fittings body front end correspondence arranges spacing shoulder block, and stop collar 27 is affixed with joint pedestal 3.Female thread is set in the downward opening inner chamber of joint pedestal 3 leading portion and screws screw 32 with corresponding external screw thread interlocking the composition of Connection Block 1.Downward projection one stem stem of this inner chamber SMIS, in in this stem stem, there is penetrating via, this penetrating via is by vertically forming compared with major path and oblique smaller channels, the opening up inner chamber of oblique smaller channels inclination penetrator pedestal 3 back segments, through part is a shoulder block, and this shoulder block is aforesaid stopping into wall and as the sealing surface 42 of stop valve 4.Fittings body 2 inner chambers comprise vertical passageway 23, flap 41 is fittings body termination, total a plurality of oblique smaller channels mouths are arranged on the peripheral circumferential position in 23 mouthfuls of this vertical passageways, through the propelling of fittings body 2, this fittings body end closure is combined in and stops on wall, ended being communicated with of vertical passageway 23 and oblique smaller channels.
It is identical with embodiment mono-that the present embodiment is not stated part.
Embodiment tetra-:
With reference to Fig. 8, there is the medical infusion joint of stop valve, fittings body 2 and stop valve valve rod 43 Construction integrations, stop valve valve rod 43 is fittings body 2, and Connection Block 1 extends axially and distributes along joint pedestal 3.Comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block 1 front end and inlying catheter is plugged into, and joint pedestal 3 is with Connection Block 1 split structure but to screw screw 32 by one affixed with Connection Block 1.Fittings body 2 leading portions are plugged in joint pedestal 3 inner chambers, and fittings body 2 inner chambers are communicated with Connection Block 1 inner chamber by a kind of stop valve 4.Fittings body 2 is made up of screw rod 21 and lift head 22, the seal rubber plug 5 of plugging into Transfusion needle pipe is positioned at screw rod 21 tail ends, screw rod 21 leading portions are plugged in lift head 22 inner chambers and with its spiral and are connected, screw rod 21 is also connected with joint pedestal 3 axial limitings, and lift head 22 is nested with in the inner chamber of joint pedestal 3 in mode that can the 3 front and back slippages of opposing tabs pedestal.Joint pedestal 3 inner chambers are a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws screw 32 and Connection Block 1 corresponding part interlocking, small-sized cavity wall arranges cylindrical hole and lift head 22 matched in clearance sockets, this cylindrical hole length is greater than the length of lift head 22 corresponding paragraphs, thereby makes lift head 22 and even fittings body 2 have the space that adjustable diameter and screw adjusting is axially passed.Cylindrical hole and screw between screw 32 and have a shoulder block, before a kind of inner seal liner is arranged on this shoulder block, the front end of lift head protrudes in Connection Block 1 inner chamber through the endoporus of this this inner seal liner.Between fittings body 2 and Connection Block 1 inner chamber, have the space that fittings body 2 advances, stop valve 4 is arranged in above-mentioned fittings body propelling space and stops into wall cut-off and touching with Connection Block 1 inner chamber through the fittings body being advancing to the position.Fittings body 2 inner chambers comprise screw rod 21 inner chambers and lift head 22 inner chambers, it is all vertical passageway 23, flap 41 is positioned at the vertical passageway mouth of lift head 22 terminations, 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 aforementioned Connection Block 1 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 11 into wall, through the propelling of fittings body 2, the stopping of this sharp cone distal or truncated cone-shaped extend into fittings body vertical passageway 23 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 11 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 11 on wall and cannot be communicated with vertical passageway 23, thereby is cut off.
It is identical with embodiment mono-that the present embodiment is not stated part.
Embodiment five:
With reference to Fig. 9, there is the medical infusion joint of stop valve, fittings body 2 and stop valve valve rod 43 Construction integrations, stop valve valve rod 43 is fittings body 2, and Connection Block 1 is along distributing with the direction of joint pedestal 3 axial square crossings.Comprise Connection Block 1, fittings body 2, joint pedestal 3 and stop valve 4.The extension tube 6 of Connection Block 1 front end and inlying catheter is plugged into, and joint pedestal 3 is with Connection Block 1 Construction integration but the two square crossing.Stop valve valve rod 43 is plugged in joint pedestal 3 inner chambers and with joint pedestal 3 spirals and is connected.Stop valve valve rod 43 rearward end are a kind of needleless joint (also having needle adapter), can plug into transfusion device.Valve rod 43 inner core hollows have the inner chamber axially running through, and this inner chamber is as infusion channel.Stop valve valve rod 43 end outer peripheral faces are coated with sealing ring, and this sealing ring outer peripheral face is as flap 41, and stop valve sealing surface 42 is positioned at the infusion channel mouth vertical with valve rod 43, i.e. the accent of Connection Block 1 inner chamber.The base end wall of joint pedestal inner chamber is stopped into wall as corresponding inner chamber, and when valve rod 43 front ends and this stop while touching into wall, the accent of just positive stopping Connection Block 1 inner chamber of above-mentioned sealing ring outer peripheral face completes closing of stop valve 4.
It is same as the prior art that the present embodiment is not stated part.
Embodiment six:
With reference to Figure 10, there is the medical infusion joint of stop valve, comprise Connection Block 1, fittings body 2, joint pedestal 3 and stop valve 4.The extension tube of Connection Block 1 front end and inlying catheter is plugged into, fittings body 2 rear ends or one have needle adapter or a kind of needleless joint to plug into transfusion device, positional structure relation between fittings body 2, joint pedestal 3 and Connection Block 1 three is a kind of threeway structure, now, fittings body 2 and joint pedestal 3 on same axis Connection Block 1 the two intersects with this, but above-mentioned three in one is constructed.Fittings body 2 inner chambers are communicated with Connection Block 1 inner chamber by a kind of stop valve 4, and stop valve valve rod 43 is plugged in joint pedestal 3 inner chambers and with joint pedestal 3 spirals and is connected in the mode that can advance and retreat.Stop valve valve rod 43 terminations are a kind of sharp cone distal, and it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that the correspondence of joint pedestal inner chamber bottom is stopped into wall, the interior reducing of this truncated cone-shaped step be infusion channel mouth directly with fittings body 2 inner chambers perforations.In the time that stop valve valve rod 43 sharp cone distal terminations touch with corresponding type conical bench, stop valve 4 closures; Retreat and work as stop valve valve rod 43, stop valve is opened, and transfusion enters reducing in type conical bench and goes forward side by side and enter Connection Block 1 inner chamber.Stop valve valve rod 43 is provided with a kind of sealing ring with the front of joint pedestal 3 spiral linkage sections.
It is same as the prior art that the present embodiment is not stated part.
Embodiment seven:
With reference to Figure 11, there is the medical infusion joint of stop valve, comprise Connection Block 1, fittings body 2, joint pedestal 3 and stop valve 4.Positional structure relation between fittings body 2, joint pedestal 3 and Connection Block 1 three is a kind of threeway structure, now, Connection Block 1 and joint pedestal 3 on same axis fittings body 2 the two intersects with this, but above-mentioned three in one is constructed.Stop valve valve rod 43 terminations are a kind of sharp cone distal, and it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that the correspondence of joint pedestal inner chamber bottom is stopped into wall, the interior reducing of this truncated cone-shaped step be infusion channel mouth directly with Connection Block 1 inner chamber perforation.
It is identical with embodiment six that the present embodiment is not stated part.
Most preferred embodiment:
With reference to Figure 12, there is the medical infusion joint of stop valve, comprise Connection Block 1, fittings body 2, joint pedestal 3 and stop valve 4.Positional structure relation between fittings body 2, joint pedestal 3 and Connection Block 1 three is a kind of threeway structure, and now, Connection Block 1 connects pedestal 3 with fittings body 2 on same axis, and the two intersects with this, but above-mentioned three in one structure.Stop valve valve rod 43 terminations are a kind of sharp cone distal, it is a kind of sharp cone distal corresponding with this sharp cone distal that the correspondence of joint pedestal inner chamber bottom is stopped into wall, when valve rod 43 front ends and this stop while touching into wall, thereby the just positive accent of stopping Connection Block 1 inner chamber of valve rod 43 outer peripheral faces and the accent of fittings body 2 inner chambers complete closing of stop valve 4.
It is identical with embodiment six that the present embodiment is not stated part.
Claims (16)
1. there is the medical infusion joint of stop valve, comprise Connection Block and fittings body, Connection Block front end or plug into the extension tube of inlying catheter or plug into tube for transfusion, fittings body rear end and transfusion device are plugged into, it is characterized in that, also comprise a kind of joint pedestal and a kind of stop valve, this joint pedestal or with Connection Block Construction integration or split structure but affixed with Connection Block, fittings body inner chamber is communicated with Connection Block inner chamber by a kind of stop valve, stop valve valve rod is nested with in joint pedestal inner chamber in the mode that can advance and retreat, stop valve valve or be arranged in joint pedestal inner chamber or be arranged in Connection Block inner chamber or be arranged in fittings body inner chamber, close or Open valve through the stop valve valve rod that is advancing to the position and retreats,
Fittings body and stop valve valve rod split structure, fittings body or affixed or affixed with Connection Block with joint pedestal; Positional structure relation between fittings body, joint pedestal and Connection Block three is a kind of threeway structure, now, or fittings body and joint pedestal on same axis Connection Block the two intersects with this, or fittings body and Connection Block on same axis joint pedestal the two intersects with this, or Connection Block and joint pedestal on same axis fittings body the two intersects with this.
2. the medical infusion joint with stop valve according to claim 1, is characterized in that, also includes the device that a kind of adjustable diameter and screw adjusting is axially passed, and the mode and the joint pedestal that are able to advancing and retreat through this device stop valve valve rod are socketed.
3. the medical infusion joint with stop valve according to claim 2, is characterized in that, stop valve valve rod is plugged in joint pedestal inner chamber and with joint pedestal spiral and is connected.
4. according to the medical infusion joint with stop valve described in claim 2 or 3, it is characterized in that, the front of stop valve valve rod and joint pedestal spiral linkage section is provided with a kind of inner seal liner.
5. the medical infusion joint with stop valve according to claim 2, it is characterized in that, stop valve valve rod is made up of screw rod and lift head, screw rod leading portion is plugged in lift head inner chamber and with its spiral and is connected, screw rod is also connected with joint pedestal axial limiting, and lift head is nested with in the inner chamber of joint pedestal in the mode of slippage before and after can opposing tabs pedestal.
6. the medical infusion joint with stop valve according to claim 1, it is characterized in that, stop valve valve rod is plugged in joint pedestal inner chamber with scalable slip mode, and stop valve valve rod and joint pedestal inner chamber carry out being connected with damping through the sealing ring between the two.
7. the medical infusion joint with stop valve according to claim 1, it is characterized in that, stop valve valve rod is plugged in joint pedestal inner chamber with scalable slip mode, stop valve valve rod and joint pedestal inner chamber carry out being connected with damping through the sealing ring between the two, also include and be a kind ofly difficult to axially displaced bayonet unit for limiting the stop valve valve rod that slippage puts in place again, this bayonet unit is arranged between stop valve valve rod and joint pedestal inner chamber.
8. the medical infusion joint with stop valve according to claim 7, it is characterized in that, bayonet unit is a kind of Elastic buckle, formed the draw-in groove clamping putting in place through pretightning force buckle and the slippage of spring by the buckle, spring and the corresponding draw-in groove being arranged on stop valve valve rod sidewall that are embedded on joint pedestal sidewall.
9. the medical infusion joint with stop valve according to claim 7, it is characterized in that, stop valve valve rod is plugged in joint pedestal inner chamber with scalable slippage and rotary way, bayonet unit is made up of bayonet lock and sliding tray, bayonet lock emergence is on fittings body sidewall, sliding tray correspondence is arranged on joint pedestal intracavity sidewall, sliding tray is made up of axial groove and transverse groove, the bayonet lock head of emergence slides in sliding tray, pass the stop valve valve rod that puts in place along axial groove through rotating that sliding sleeve enters in transverse groove and with the axial clamping of joint pedestal.
10. the medical infusion joint with stop valve according to claim 9, is characterized in that, transverse groove has gradient, but oblique angle is less than Self-locking angle.
The 11. medical infusion joints with stop valve according to claim 1, it is characterized in that, the flap of stop valve is positioned at stop valve valve rod termination, stop valve sealing surface or be positioned at joint pedestal inner chamber and stop on wall or be positioned at Connection Block inner chamber and stop on wall or be positioned at fittings body inner chamber and stop on wall.
The 12. medical infusion joints with stop valve according to claim 11, it is characterized in that, stop valve valve rod termination is a kind of sharp cone distal, and it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that corresponding inner chamber stops into wall, and the interior reducing of this truncated cone-shaped step is infusion channel mouth.
The 13. medical infusion joints with stop valve according to claim 1, is characterized in that, stop valve valve rod end outer peripheral face is coated with sealing ring, and this sealing ring outer peripheral face is as flap, and stop valve sealing surface is positioned at the infusion channel mouth vertical with valve rod.
The 14. medical infusion joints with stop valve according to claim 1, it is characterized in that, fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, fittings body inner chamber comprises vertical passageway and 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 sharp cone distal, it is a kind of truncated cone-shaped step corresponding with this sharp cone distal that joint pedestal inner chamber or Connection Block inner chamber stop into wall, the interior reducing of this truncated cone-shaped step is infusion channel mouth.
The 15. medical infusion joints with stop valve according to claim 1, it is characterized in that, fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, 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 or Connection Block inner chamber stop 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.
The 16. medical infusion joints with stop valve according to claim 1, it is characterized in that, fittings body and stop valve valve-stem integrated structure, stop valve valve rod is fittings body, 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 or Connection Block inner chamber stop 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474868.6U CN203802874U (en) | 2013-08-03 | 2013-08-03 | Medical transfusion joint with stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474868.6U CN203802874U (en) | 2013-08-03 | 2013-08-03 | Medical transfusion joint with stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203802874U true CN203802874U (en) | 2014-09-03 |
Family
ID=51441690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474868.6U Expired - Lifetime CN203802874U (en) | 2013-08-03 | 2013-08-03 | Medical transfusion joint with stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203802874U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622566A (en) * | 2015-01-23 | 2015-05-20 | 诸暨市鹏天医疗器械有限公司 | Electric snare allowing water injection |
| WO2019015523A1 (en) * | 2017-07-20 | 2019-01-24 | 江苏金塔药业有限公司 | Filter device and filtering infusion container comprising same |
| EA039802B1 (en) * | 2017-07-20 | 2022-03-15 | Гемтьер Медикал (Цзянсу) Инк. | Filter device and filtering infusion container comprising same |
-
2013
- 2013-08-03 CN CN201320474868.6U patent/CN203802874U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622566A (en) * | 2015-01-23 | 2015-05-20 | 诸暨市鹏天医疗器械有限公司 | Electric snare allowing water injection |
| WO2019015523A1 (en) * | 2017-07-20 | 2019-01-24 | 江苏金塔药业有限公司 | Filter device and filtering infusion container comprising same |
| KR20200031125A (en) * | 2017-07-20 | 2020-03-23 | 젬티어 메디컬 (지앙수) 아이엔씨 | Filtration device and filtrate solution container including the same |
| EP3656420A4 (en) * | 2017-07-20 | 2021-04-14 | Gemtier Medical (Jiangsu) Inc. | Filter device and filtering infusion container comprising same |
| EA039802B1 (en) * | 2017-07-20 | 2022-03-15 | Гемтьер Медикал (Цзянсу) Инк. | Filter device and filtering infusion container comprising same |
| US11344672B2 (en) | 2017-07-20 | 2022-05-31 | Gemtier Medical (Jiangsu) Inc. | Filter device and filtering infusion container comprising same |
| KR102461240B1 (en) * | 2017-07-20 | 2022-10-28 | 젬티어 메디컬 (지앙수) 아이엔씨 | Filtration device and filtration solution container including the same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |