CN203370154U - Automatic venous transfusion stopping negative pressure conduction bottle penetrating needle - Google Patents

Automatic venous transfusion stopping negative pressure conduction bottle penetrating needle Download PDF

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Publication number
CN203370154U
CN203370154U CN201320447189.XU CN201320447189U CN203370154U CN 203370154 U CN203370154 U CN 203370154U CN 201320447189 U CN201320447189 U CN 201320447189U CN 203370154 U CN203370154 U CN 203370154U
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CN
China
Prior art keywords
hemisphere
negative pressure
chamber
needle
water conservancy
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Expired - Fee Related
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CN201320447189.XU
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Chinese (zh)
Inventor
朱盛楠
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HENAN CHENNUO SCIENCE & TECHNOLOGY Co Ltd
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HENAN CHENNUO SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201320447189.XU priority Critical patent/CN203370154U/en
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Abstract

The utility model provides an automatic venous transfusion stopping negative pressure conduction bottle penetrating needle which is composed of a bottle penetrating syringe needle, a stopping floating needle, a flow guide module and a negative pressure conduction structure. Particularly, on the basis of the gravity and buoyancy principle, in the transfusion process, the drug liquid buoyancy in a drug liquid bottle is utilized for enabling the floating needle in the bottle penetrating needle to be floated, a flow guiding sealing nozzle is opened, and the transfusion is kept smooth. After the transfusion is completed, the drug liquid face descends or bottle continuing is carried out midway to replace the drug liquid, the bottle penetrating needle is pulled out, the floating needle descends along with the bottle penetrating needle, a drug liquid flow guide nozzle is sealed, the drug liquid level is prevented from descending, air is prevented from entering a lower transfusion pipe, and the backflow and blood returning phenomena are prevented from happening. Meanwhile, the conduction negative pressure is generated, a system is driven to work, and the transfusion monitoring management is achieved. The automatic venous transfusion stopping negative pressure conduction bottle penetrating needle is simple in structure and good in sealing stopping effect, is widely popularized and applied, is capable of effectively reducing labor intensity of medical workers, improves service quality, and has the giant economic benefits and social benefits.

Description

A bottle pin is worn in a kind of venous transfusion automatic cut-off negative pressure conduction
Technical field
This utility model provides a kind of venous transfusion automatic cut-off negative pressure conduction to wear a bottle pin, a kind of gravity and law of buoyancy utilized particularly, when the medicinal liquid bottle inner liquid medicine is totally lost, automatic cut-off prevents that transfusion device inner liquid medicine face excessive descent and the anti-blood phenomenon that flows back to from occurring, and can realize that again a bottle pin is worn in the venous transfusion automatic cut-off negative pressure conduction of negative pressure conduction.
Background technology
The common disposable intravenous infusion set used at present, do not possess the automatic cut-off function, in the venous transfusion process, careless slightlyly will cause anti-generation of flowing back to the blood phenomenon, to transfusion, brings unnecessary trouble; Many improvement projects and design invention have appearred in this field for this reason, in order to solve the existing anti-blood problem that flows back in venous transfusion; The method adopted mainly contains two large classes; One is the gravity cut-off method, mainly adopts and install ball float, float needle, conical plug, diaphragm, flap valve etc. additional in infusion unit titrimeter; These class methods have utilized the gravity principle in the venous transfusion to realize cut-off, but in popularization, exist the cut-off effect not good enough, and technology is not mature enough, and manufacturability is poor, and the reasons such as function singleness are not popularized widely and applied; Another kind of is to utilize external force to assist to realize the automatic cut-off of transfusion, it has mainly adopted detection of electrons method, gravimetric method, magnetic method, volumetric method etc., although this class methods technology is comparatively advanced, the cut-off effect comparatively accurately and reliably, in cut-off, also realized the cut-off alarm function; But up to the present still be not widely used and apply, tracing it to its cause, it is simple not that these class methods have operation, it is not too convenient to use, and utilizes external force to assist and deals with problems, and does not meet energy-saving principle, has also increased the technical problem that external force is utilized simultaneously.
My many moneys of separate case application automatic cut-off negative pressure is conducted transfusion device, its automatic cut-off negative pressure conducting structure all designs the lower tube for transfusion position be connected with Murphy tube in Murphy tube, because the height reason is difficult to gather the negative pressure maximum in catheter of transfusion system, thereby the systemic-function of having influence on, therefore at the highest point of transfusion device, wear a bottle pin with the venous transfusion automatic cut-off negative pressure conduction of wearing bottle pin Integral design, neither change the structural principle of common disposable transfusion device, energy-conserving and environment-protective, again can automatic cut-off, utilize peak suction value in tube for transfusion, the Chinese medicine liquid level excessive descent that can also prevent from infusing reaches the anti-blood phenomenon that flows back to and occurs simultaneously.
Summary of the invention
This utility model provides a kind of venous transfusion automatic cut-off negative pressure conduction to wear a bottle pin, a kind of gravity and law of buoyancy utilized particularly, automatic cut-off when the medicinal liquid bottle inner liquid medicine is totally lost, prevent that medicinal liquid face excessive descent and the anti-blood phenomenon that flows back to from occurring, and can realize that again a bottle pin is worn in the venous transfusion automatic cut-off negative pressure conduction of negative pressure conduction; In order to achieve the above object, the technical solution of the utility model is achieved in that the conduction of described venous transfusion automatic cut-off negative pressure wears bottle pin 1, its by wearing a bottle syringe needle 1-1, cut-off float needle 1-2, water conservancy diversion module 1-3, negative pressure conducting structure 1-4 form; Wear a bottle syringe needle 1-1 and be positioned at topmost, its lower end sealing installation opening 1-1-10, form assembly with the sealing assembly bench 1-3-3 assembly connection of water conservancy diversion module 1-3; Cut-off float needle 1-2 is positioned at float needle chamber 1-1-5, and it is corresponding that diaphragm seal 1-2-2 and medicinal liquid water conservancy diversion are chewed 1-3-1; The three-way flow guide pipe 1-4-1 of water conservancy diversion module 1-3 and negative pressure conducting structure 1-4 is structure as a whole, and three-way flow guide pipe 1-4-1 chews 1-3-1 with the medicinal liquid water conservancy diversion and is communicated with; Its module gas port of water conservancy diversion module 1-3 1-3-2 is communicated with gas port 1-1-7; Tube for transfusion union joint 1-4-1-2 and the tube for transfusion of the lower end of its three-way flow guide pipe of negative pressure conducting structure 1-4 1-4-1 connect; The horizontal mozzle mouth of pipe of threeway 1-4-1-3 is arranged on three-way flow guide pipe 1-4-1, and it communicates with interior gas-liquid inverting chamber shell 1-4-4; Negative pressure conducting structure 1-4 pressure catheter pipe 1-4-2-7 mono-end is communicated with outer liquid gas transposition hemisphere chamber 1-4-2-5, an end and external system connectivity.
Bottle pin 1 is worn in described venous transfusion automatic cut-off negative pressure conduction, and it wears bottle syringe needle 1-1, and by needle tip 1-1-1, taper, excessively section 1-1-2, puncture shank 1-1-3, pod apertures 1-1-4, float needle chamber 1-1-5, air guide port 1-1-6, gas port 1-1-7, gas port connector 1-1-8, pore communication seals platform 1-1-9, sealing installation opening 1-1-10 form; Needle tip 1-1-1 is positioned at end, on the taper surface of the excessive section of its inferior pyramidal 1-1-2, air guide port 1-1-6 is arranged; The cross section of puncture shank 1-1-3 is oblate or circular, and its inner side is float needle chamber 1-1-5, and a side is gas port 1-1-7; Cut-off float needle 1-2 is housed in the 1-1-5 of float needle chamber in assembly, on the outer wall puncture shank 1-1-3 of float needle chamber 1-1-5, has pod apertures 1-1-4 to be communicated with outside; The sealing assembly bench 1-3-3 assembling one of sealing installation opening 1-1-10 and water conservancy diversion module 1-3, in the float needle chamber 1-1-5 formed in assembling, it is corresponding with the diaphragm seal 1-2-2 of cut-off float needle 1-2 that the medicinal liquid water conservancy diversion of water conservancy diversion module 1-3 is chewed 1-3-1, without the medicinal liquid water conservancy diversion being chewed to the 1-3-1 sealing under buoyant state; Pore communication seals platform 1-1-9 is arranged in the sealing installation opening 1-1-10 of gas port 1-1-7 mono-side, gas port connector 1-1-8 is arranged on it, in assembly, the sealing assembly bench 1-3-3 of pore communication seals platform 1-1-9 and water conservancy diversion module 1-3 is sealed and matched, and gas port 1-1-7 is communicated with the module gas port 1-3-2 sealing of water conservancy diversion module 1-3.
Bottle pin 1 is worn in described venous transfusion automatic cut-off negative pressure conduction, and its cut-off float needle 1-2 consists of sealing float needle 1-2-1, diaphragm seal 1-2-2 two parts; Sealing float needle 1-2-1 mono-end is bullet-shaped, the hollow tubular structure that the other end is neat opening, and opening is sealed by diaphragm seal 1-2-2; Its whole gravity is less than quality of liquid medicine, can in medicinal liquid, float.
Bottle pin 1 is worn in the conduction of described venous transfusion automatic cut-off negative pressure, its water conservancy diversion module 1-3 by the medicinal liquid water conservancy diversion chew 1-3-1, module gas port 1-3-2, sealing assembly bench 1-3-3, assembling limiting stand 1-3-4, module air conduit 1-3-5 form; The three-way flow guide pipe 1-4-1 of water conservancy diversion module 1-3 and negative pressure conducting structure 1-4 is structure as a whole, and the medicinal liquid water conservancy diversion is chewed the upper prolongation mouth of pipe of the three-way flow guide pipe 1-4-1 that 1-3-1 is negative pressure conducting structure 1-4; Module gas port 1-3-2 on water conservancy diversion module 1-3 is 90 degree in length and breadth and turns to, and in assembly, vertically section is straight-through with the gas port 1-1-7 worn on bottle syringe needle 1-1, and traversing section and airway connection tube are straight-through.
Bottle pin 1 is worn in described venous transfusion automatic cut-off negative pressure conduction, and its negative pressure conducting structure 1-4 consists of three-way flow guide pipe 1-4-1, liquid gas transposition bulb tube 1-4-2; Three-way flow guide pipe 1-4-1 consists of the vertical mozzle 1-4-1-1 of threeway, tube for transfusion union joint 1-4-1-2, the horizontal mozzle pipe of threeway 1-4-1-3; Liquid gas transposition bulb tube 1-4-2 consists of interior hemisphere liquid gas transposition chamber 1-4-2-1, interior liquid gas transposition hemisphere chamber enclosure 1-4-2-2, hemisphere face isolation diaphragm 1-4-2-3, outer liquid gas transposition hemisphere chamber 1-4-2-4, outer liquid gas transposition hemisphere chamber enclosure 1-4-2-5, bulb tube seam 1-4-2-6, pressure catheter 1-4-2-7; Hemisphere face isolation diaphragm 1-4-2-3 consists of diaphragm annular edge 1-4-2-3-1, diaphragm hemisphere face 1-4-2-3-2; The interior liquid gas transposition hemisphere chamber enclosure 1-4-2-2 of three-way flow guide pipe 1-4-1 and liquid gas transposition bulb tube 1-4-2 is structure as a whole, and at the bottom of the chamber of interior hemisphere liquid gas transposition hemisphere chamber 1-4-2-1, with the horizontal mozzle mouth of pipe of threeway 1-4-1-3, directly is communicated with; Interior liquid gas transposition hemisphere chamber 1-4-2-1 is sealed by hemisphere face isolation diaphragm 1-4-2-3; Interior liquid gas transposition hemisphere chamber enclosure 1-4-2-2, by bulb tube seam 1-4-2-6 assembling one, form the sealing spherical inner chamber with outer liquid gas transposition hemisphere chamber enclosure 1-4-2-5; The diaphragm annular edge 1-4-2-3-1 of hemisphere face isolation diaphragm 1-4-2-3 is pressed between interior liquid gas transposition hemisphere chamber enclosure 1-4-2-2 and outer liquid gas transposition hemisphere chamber enclosure 1-4-2-5, diaphragm hemisphere face 1-4-2-3-2 changes with the medicinal liquid pressure in three-way flow guide pipe 1-4-1, can with the hemisphere face-piece inwall of interior liquid gas transposition hemisphere chamber 1-4-2-1 or the hemisphere face-piece inwall of outer liquid gas transposition hemisphere chamber 1-4-2-4, fit respectively; Pressure catheter 1-4-2-7 is connected with external corollary system; Tube for transfusion union joint 1-4-1-2 and the tube for transfusion of three-way flow guide pipe 1-4-1 connect.
Bottle pin 1 is worn in described venous transfusion automatic cut-off negative pressure conduction, and its hemisphere face isolation diaphragm 1-4-2-3 consists of diaphragm annular edge 1-4-2-3-1, diaphragm hemisphere face 1-4-2-3-2 two parts; 1-4-2-3-1 is in assembly for the diaphragm annular edge, be pressed between interior liquid gas transposition hemisphere chamber enclosure 1-4-2-2 and outer liquid gas transposition hemisphere chamber enclosure 1-4-2-5, be hermetically-sealed construction, its diaphragm hemisphere face 1-4-2-3-2 cambered surface and interior liquid gas transposition hemisphere chamber 1-4-2-1, outer liquid gas transposition hemisphere chamber 1-4-2-4 coincide.
Beneficial effect
This utility model provides a kind of venous transfusion automatic cut-off negative pressure conduction to wear a bottle pin, it utilizes own gravity and buoyancy in transfusion, the automatic cut-off when medicinal liquid in medicinal liquid bottle is totally lost, the anti-blood phenomenon that flows back to that prevents medicinal liquid face excessive descent and cause occurs, and conducts the work of negative pressure drive system simultaneously and realizes the monitoring infusion management; Compared to other stopper, have simple in structure, good sealing effect, the characteristics such as manufacturability is strong; Can effectively reduce medical personnel's labor intensity in clinical practice, save a large amount of human resources who takies for observing the transfusion progress, make more standard of infusion management, nurse more intimate.
The accompanying drawing explanation
A bottle pin figure is worn in the conduction of Fig. 1 venous transfusion automatic cut-off negative pressure
Fig. 2 wears a bottle needle head structure figure
Fig. 3 float needle figure
Fig. 4 water conservancy diversion modular structure figure
Fig. 5 threeway negative pressure conducting structure figure
Fig. 6 diaphragm seal figure
The outer liquid gas transposition of Fig. 7 hemisphere chamber enclosure figure
1, a bottle pin is worn in the conduction of venous transfusion automatic cut-off negative pressure
1-1, wear a bottle syringe needle,
The 1-1-1 needle tip
Excessive section of 1-1-2 taper
The 1-1-3 shank that punctures
The 1-1-4 pod apertures,
1-1-5 float needle chamber
The 1-1-6 air guide port
The 1-1-7 gas port
1-1-8 gas port connector,
1-1-9 pore communication seals platform
1-1-10 seals installation opening
1-2, cut-off float needle
1-2-1 seals float needle
The 1-2-2 diaphragm seal
1-3, water conservancy diversion module
1-3-1 medicinal liquid water conservancy diversion is chewed
1-3-2 module gas port
1-3-3 sealing assembly bench,
1-3-4 assembling limiting stand,
1-3-5 module air conduit
1-4, negative pressure conducting structure
1-4-1 three-way flow guide pipe
The vertical mozzle of 1-4-1-1 threeway
1-4-1-2 tube for transfusion union joint
The horizontal mozzle mouth of pipe of 1-4-1-3 threeway
1-4-2 liquid gas transposition bulb tube
Liquid gas transposition hemisphere chamber in 1-4-2-1
Liquid gas transposition hemisphere chamber enclosure in 1-4-2-2
1-4-2-3 hemisphere face isolation diaphragm
1-4-2-3-1 diaphragm annular edge
1-4-2-3-2 diaphragm hemisphere face
The outer liquid gas transposition of 1-4-2-4 hemisphere chamber
The outer liquid gas transposition of 1-4-2-5 hemisphere chamber enclosure
1-4-2-6 bulb tube seam
The 1-4-2-7 pressure catheter.
The specific embodiment
In venous transfusion, the tube for transfusion inner liquid medicine flow of disposable intravenous infusion set, because being subject to the Flow-rate adjustment restriction of tiny piercing needle and flow control valve, in most transfusions, can not flow by the maximum stream flow of design, making has pressure to exist in the inherent whole infusion process of tube for transfusion; Liquid soup in infusion unit titrimeter, when having pressure, also has buoyancy; Material lower than medicinal liquid density will produce buoyancy in its medicinal liquid, towards medicinal liquid face floating, and simultaneously also can be along with the medicinal liquid face descends and descends; If floating agents design is become to specific shape, with the dropping funnel liquid outlet, can seal identical, when the medicinal liquid face descends, it will be along with the medicinal liquid face descends, sealing infusion unit titrimeter liquid outlet, stop the medicinal liquid face to continue to descend, and realizes cutoff function, make in stop surface tube for transfusion once to keep the positive/negative pressure varied in size from top to bottom, thereby avoid anti-generation of flowing back to the blood phenomenon.
Bottle pin 1 is worn in venous transfusion automatic cut-off negative pressure conduction in this case, with lower tube for transfusion, be linked and packed, form disposable automatic cut-off negative pressure conduction intravenous transfusion device, in infusion process, identical with common disposable intravenous infusion set operation sequence, the hand-held disposable automatic cut-off negative pressure conduction intravenous transfusion device of medical personnel, first dropping funnel is inverted, in the conduction of venous transfusion automatic cut-off negative pressure being worn to bottle pin insertion medicinal liquid bottle, wearing a bottle pin wears out bottle cap and directly advances into the liquid, the cut-off float needle of wearing in bottle pin will be in floating intracavity floating, leaving the medicinal liquid water conservancy diversion chews, medicinal liquid will be chewed the inflow tube for transfusion from the medicinal liquid water conservancy diversion and flow in dropping funnel, while in the medicinal liquid face, rising to the middle medicinal liquid face graduation mark of dropping funnel, slowly dropping funnel is turned again, medicinal liquid will flow in tube for transfusion from the dropping funnel liquid outlet, after the air in tube for transfusion is discharged fully, medicinal liquid just flows out from venous needle, after venipuncture, flow in patient's vein blood vessel, enter transfusion state.
In the transfusion process, the cut-off float needle is under the effect of float needle intracavity medicinal liquid floating power, be suspended in the top in float needle chamber always, medicinal liquid in medicinal liquid bottle is totally lost, the medicinal liquid face of float needle intracavity descends, float needle also descends thereupon, its diaphragm seal will drop on following medicinal liquid water conservancy diversion and chew, sealing medicinal liquid water conservancy diversion is chewed, produce cut-off, medicinal liquid after cut-off in tube for transfusion is no longer mobile, liquid level no longer descends, the transfusion halted state appears, now stay the medicinal liquid of tube for transfusion, in tube for transfusion under cut-off state, medicinal liquid pressure is much larger than human vein pressure, the too much pressure of hypomere in tube for transfusion after cut-off, the stop surface place transforms my negative pressure up, produce pressure balance in tube for transfusion, avoided air to enter in tube for transfusion and anti-generation of flowing back to the blood phenomenon.
As need continue transfusion, the continuous bottle of rear operator that change dressings only need gently pinch dropping funnel, and the water conservancy diversion sealing is chewed and will be opened, the float needle floating, and the pressure balance of tube for transfusion inner liquid medicine is broken and flows downward, and enters the continuation transfusion state.
In process of production, the structural member in this case adopts conventional production technology to produce, and manufacturability is strong, and production cost is low; Adopt the manufacture of multimode injection moulding, production efficiency; The sealing float needle can adopt the material that density is less to make, and to increase buoyancy, can reduce volume, increases the overall appearance effect simultaneously; Diaphragm seal adopts soft latex material, guarantees sealing effectiveness.
A bottle pin is worn in venous transfusion automatic cut-off negative pressure conduction provided by the present invention, and good sealing effect is stable and reliable for performance; Its float needle design, in wearing bottle pin, does not change structure, the face shaping of common disposable intravenous infusion set, does not affect drop observing effect in dropping funnel; Do not affect flow; Be equipped with disposable intravenous infusion set of the present invention, do not change medical personnel's work habit, its operation sequence is identical with disposable intravenous infusion set, is easy to learn and use; Compared to other stopper, have simple in structure, good sealing effect, the characteristics such as manufacturability is strong; Can effectively reduce medical personnel's labor intensity in clinical practice, save a large amount of human resources who takies for observing the transfusion progress, make more standard of infusion management, nurse more intimate.

Claims (6)

1. a bottle pin (1) is worn in the conduction of venous transfusion automatic cut-off negative pressure, by wearing a bottle syringe needle (1-1), cut-off float needle (1-2), water conservancy diversion module (1-3), negative pressure conducting structure (1-4) formation; It is characterized in that wearing a bottle syringe needle (1-1) and be positioned at topmost, its lower end sealing installation opening (1-1-10), form assembly with sealing assembly bench (1-3-3) assembly connection of water conservancy diversion module (1-3); Cut-off float needle (1-2) is positioned at float needle chamber (1-1-5), and (it is corresponding that 1-2-2 and medicinal liquid water conservancy diversion are chewed (1-3-1) to diaphragm seal; Water conservancy diversion module (1-3) is structure as a whole with the three-way flow guide pipe (1-4-1) of negative pressure conducting structure (1-4), and three-way flow guide pipe (1-4-1) is chewed (1-3-1) with the medicinal liquid water conservancy diversion and is communicated with; Its module gas port (1-3-2) of water conservancy diversion module (1-3) is communicated with gas port (1-1-7); The tube for transfusion union joint (1-4-1-2) of the lower end of its three-way flow guide pipe (1-4-1) of negative pressure conducting structure (1-4) connects with tube for transfusion; The horizontal mozzle mouth of pipe of threeway (1-4-1-3) is arranged on three-way flow guide pipe (1-4-1), and it communicates with interior gas-liquid inverting chamber shell (1-4-4); Negative pressure conducting structure (1-4) pressure catheter pipe (1-4-2-7) end is communicated with outer liquid gas transposition hemisphere chamber (1-4-2-5), an end and external system connectivity.
2. a bottle pin (1) is worn in venous transfusion automatic cut-off negative pressure conduction according to claim 1, and (((1-1-9, sealing installation opening (1-1-10) form for 1-1-8, pore communication seals platform for 1-1-7, gas port connector by needle tip (1-1-1), the excessive section of taper (1-1-2), puncture shank (1-1-3), pod apertures (1-1-4), float needle chamber (1-1-5), air guide port (1-1-6), gas port to it is characterized in that wearing a bottle syringe needle (1-1); Needle tip (1-1-1) is positioned at end, on the taper surface of the excessive section of its inferior pyramidal (1-1-2), air guide port (1-1-6) is arranged; It is oblate or circular that the cross section of puncture shank (1-1-3) is, and its inner side is float needle chamber (1-1-5), and a side is gas port (1-1-7); Cut-off float needle (1-2) is housed in float needle chamber (1-1-5) in assembly, on the outer wall puncture shank (1-1-3) of float needle chamber (1-1-5), has pod apertures (1-1-4) to be communicated with outside; Sealing installation opening (1-1-10) assembles one with the sealing assembly bench (1-3-3) of water conservancy diversion module (1-3), in the float needle chamber (1-1-5) formed in assembling, it is corresponding with the diaphragm seal (1-2-2) of cut-off float needle (1-2) that the medicinal liquid water conservancy diversion of water conservancy diversion module (1-3) is chewed (1-3-1), without the medicinal liquid water conservancy diversion being chewed to (1-3-1) sealing under buoyant state; In the sealing installation opening (1-1-10) of gas port (1-1-7) side, pore communication seals platform (1-1-9) is arranged, gas port connector (1-1-8) is arranged on it, in assembly, pore communication seals platform (1-1-9) is sealed and matched with the sealing assembly bench (1-3-3) of water conservancy diversion module (1-3), and gas port (1-1-7) is communicated with module gas port (1-3-2) sealing of water conservancy diversion module (1-3).
3. a bottle pin (1) is worn in venous transfusion automatic cut-off negative pressure conduction according to claim 1, it is characterized in that its cut-off float needle (1-2) consists of sealing float needle (1-2-1), diaphragm seal (1-2-2) two parts; Sealing float needle (1-2-1) end is bullet-shaped, the hollow tubular structure that the other end is neat opening, and opening is sealed by diaphragm seal (1-2-2); Its whole gravity is less than quality of liquid medicine, can in medicinal liquid, float.
4. a bottle pin (1) is worn in venous transfusion automatic cut-off negative pressure according to claim 1 conduction, it is characterized in that its water conservancy diversion module (1-3) by the medicinal liquid water conservancy diversion chew (1-3-1), module gas port (1-3-2), sealing assembly bench (1-3-3), assembling limiting stand (1-3-4), module air conduit (1-3-5) forms; Water conservancy diversion module (1-3) is structure as a whole with the three-way flow guide pipe (1-4-1) of negative pressure conducting structure (1-4), and the medicinal liquid water conservancy diversion is chewed (1-3-1) upper prolongation mouth of pipe for the three-way flow guide pipe (1-4-1) of negative pressure conducting structure (1-4); Module gas port (1-3-2) on water conservancy diversion module (1-3) is 90 degree in length and breadth and turns to, and in assembly, vertically section is straight-through with the gas port (1-1-7) of wearing on a bottle syringe needle (1-1), and traversing section and airway connection tube are straight-through.
5. a bottle pin (1) is worn in venous transfusion automatic cut-off negative pressure conduction according to claim 1, it is characterized in that its negative pressure conducting structure (1-4) consists of three-way flow guide pipe (1-4-1), liquid gas transposition bulb tube (1-4-2); Three-way flow guide pipe (1-4-1) consists of the vertical mozzle of threeway (1-4-1-1), tube for transfusion union joint (1-4-1-2), the horizontal mozzle pipe of threeway (1-4-1-3); Liquid gas transposition bulb tube (1-4-2) consists of interior hemisphere liquid gas transposition chamber (1-4-2-1), interior liquid gas transposition hemisphere chamber enclosure (1-4-2-2), hemisphere face isolation diaphragm (1-4-2-3), outer liquid gas transposition hemisphere chamber (1-4-2-4), outer liquid gas transposition hemisphere chamber enclosure (1-4-2-5), bulb tube seam (1-4-2-6), pressure catheter (1-4-2-7); Hemisphere face isolation diaphragm (1-4-2-3) consists of diaphragm annular edge (1-4-2-3-1), diaphragm hemisphere face (1-4-2-3-2); Three-way flow guide pipe (1-4-1) is structure as a whole with the interior liquid gas transposition hemisphere chamber enclosure (1-4-2-2) of liquid gas transposition bulb tube (1-4-2), at the bottom of the chamber in interior hemisphere liquid gas transposition hemisphere chamber (1-4-2-1), with the horizontal mozzle mouth of pipe of threeway (1-4-1-3), directly is communicated with; Interior liquid gas transposition hemisphere chamber (1-4-2-1) is sealed by hemisphere face isolation diaphragm (1-4-2-3); Interior liquid gas transposition hemisphere chamber enclosure (1-4-2-2), by bulb tube seam (1-4-2-6) assembling one, form the sealing spherical inner chamber with outer liquid gas transposition hemisphere chamber enclosure (1-4-2-5); The diaphragm annular edge (1-4-2-3-1) of hemisphere face isolation diaphragm (1-4-2-3) is pressed between interior liquid gas transposition hemisphere chamber enclosure (1-4-2-2) and outer liquid gas transposition hemisphere chamber enclosure (1-4-2-5), diaphragm hemisphere face (1-4-2-3-2) changes with the medicinal liquid pressure in three-way flow guide pipe (1-4-1), can with the hemisphere face-piece inwall in interior liquid gas transposition hemisphere chamber (1-4-2-1) or the hemisphere face-piece inwall in outer liquid gas transposition hemisphere chamber (1-4-2-4), fit respectively; Pressure catheter (1-4-2-7) is connected with external corollary system; The tube for transfusion union joint (1-4-1-2) of three-way flow guide pipe (1-4-1) connects with tube for transfusion.
6. a bottle pin (1) is worn in venous transfusion automatic cut-off negative pressure conduction according to claim 1, it is characterized in that its hemisphere face isolation diaphragm (1-4-2-3) consists of diaphragm annular edge (1-4-2-3-1), diaphragm hemisphere face (1-4-2-3-2) two parts; Diaphragm annular edge (1-4-2-3-1) is in assembly, be pressed between interior liquid gas transposition hemisphere chamber enclosure (1-4-2-2) and outer liquid gas transposition hemisphere chamber enclosure (1-4-2-5), be hermetically-sealed construction, its diaphragm hemisphere face (1-4-2-3-2) cambered surface and interior liquid gas transposition hemisphere chamber (1-4-2-1), outer liquid gas transposition hemisphere chamber (1-4-2-4) coincide.
CN201320447189.XU 2013-07-25 2013-07-25 Automatic venous transfusion stopping negative pressure conduction bottle penetrating needle Expired - Fee Related CN203370154U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104338207A (en) * 2013-07-25 2015-02-11 河南忱诺科技有限公司 Intravenous infusion automatic negative pressure transmission cutoff bottle penetrating needle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104338207A (en) * 2013-07-25 2015-02-11 河南忱诺科技有限公司 Intravenous infusion automatic negative pressure transmission cutoff bottle penetrating needle

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