CN204671674U - A kind of Murphy tube - Google Patents

Abstract

The utility model discloses a kind of Murphy tube, comprise body, be arranged at the chock plug of body upper and lower end parts, intrinsic upper tubing and lower tube for transfusion is stretched into from chock plug, and the odour seal to be connected with lower tube for transfusion, described odour seal is made up of sidewall and roof, and on sidewall, be at least provided with multiple the first through hole and the first check parts that run through sidewall, and these the first check parts can be opened or closed described first through hole.When medicinal fluid bag herb liquid flows to end, the second check parts that the first check parts that odour seal sidewall is arranged and roof are arranged can close under gravity, thus form balancing Atmospheric pressure in odour seal inside, guarantee to remain certain medicinal liquid in the bottom of odour seal, effectively block in the lower tube for transfusion that air enters bottom Murphy tube, thus improve the safety of transfusion.

Description

A kind of Murphy tube

Technical field

This utility model relates to medical auxiliary equipment field, particularly relates to and prevents air from entering a kind of Murphy tube in tube for transfusion.

Background technology

Current tube for transfusion generally includes a Murphy tube, its inner hollow.During transfusion, medicinal liquid flows downward under gravity from medicinal fluid bag, and enters in patient body by Murphy tube, adjusting device and syringe needle; Wherein adjusting device is mainly used in the flow velocity regulating medicinal liquid.But when the medicinal liquid in medicinal fluid bag flows to end, air can be entered in patient body by the transfusion drip tube bottom Murphy tube, thus very easily causes malpractice.

In view of this, be necessary to be improved Murphy tube of the prior art, to solve the problem.

Utility model content

The purpose of this utility model is to disclose a kind of Murphy tube, in order to block after medicinal liquid is finished using in lower tube for transfusion that air enters bottom Murphy tube, improves the safety of transfusion.

For achieving the above object, the utility model discloses a kind of Murphy tube, comprise body, be arranged at the chock plug of body upper and lower end parts, stretch into intrinsic upper tubing and lower tube for transfusion from chock plug, Murphy tube also comprises the odour seal be connected with lower tube for transfusion, odour seal is made up of sidewall and roof, and on sidewall, be at least provided with multiple the first through hole running through sidewall, and the first check parts, the first check parts can be opened or closed described first through hole.

In certain embodiments, conically, roof is circular arc to sidewall.

In certain embodiments, the tapering of sidewall is 1:6-1:10.

In certain embodiments, roof is provided with the second through hole that runs through roof, and the second check parts, and the second check parts can be opened or closed second through hole.

In certain embodiments, the first check parts and the second check parts are PET film.

Compared with prior art, the beneficial effects of the utility model are: when medicinal fluid bag herb liquid flows to end, the second check parts that the first check parts that odour seal sidewall is arranged and roof are arranged can close under gravity, thus form balancing Atmospheric pressure in odour seal inside, certain medicinal liquid is remained in the bottom of odour seal, effectively block in the lower tube for transfusion that air enters bottom Murphy tube, thus improve the safety of transfusion.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of Murphy tube of this utility model;

Fig. 2 is that in Fig. 1, label is the partial enlarged drawing at A place;

Fig. 3 is that in Fig. 1, label is the partial enlarged drawing at B place.

Detailed description of the invention

Below in conjunction with each embodiment shown in the drawings, this utility model is described in detail; but should be noted that; these embodiments are not limitation of the utility model; those of ordinary skill in the art are according to these embodiment institute work energy, method or structural equivalent transformations or substitute, and all belong within protection domain of the present utility model.

A kind of detailed description of the invention of please refer to the drawing 1 and a kind of Murphy tube shown in Fig. 3.In the present embodiment, a kind of Murphy tube 100, comprises body 3, is arranged at the chock plug 2 of body 3 upper and lower end parts, and stretch into upper tubing 1 in body 3 and lower tube for transfusion 5 from chock plug 2, upper tubing 1 is connected with medicinal fluid bag (not shown).

Concrete, this Murphy tube 100 also comprises the odour seal 4 be connected with lower tube for transfusion 5.Odour seal 4 is made up of sidewall 41 and roof 42, and on sidewall 41, be at least provided with multiple the first through hole 441 running through sidewall 41, and the first check parts 44, first check parts 44 can be opened or closed described first through hole 441.Conically, roof 42 is in circular arc for sidewall 41.The tapering of sidewall 41 is 1:6-1:10, and more preferably 1:7.In the present embodiment, sidewall 41 is provided with the first through hole 441 that two run through sidewall 41, can certainly more first through hole 441 of magnitude setting as required.

In the present embodiment, this roof 42 is provided with the second through hole 431 that runs through roof 42, and the second check parts 43, and these the second check parts 43 can be opened or closed second through hole 431.Second through hole 431 is arranged on the axis 110 of this Murphy tube 100.Concrete, these the first check parts 44 and the second check parts 43 are PET film, and the thickness of the first check parts 44 and the second check parts 43 is less than or equal to the thickness of this odour seal 4.More specifically, the first through hole 441 and the second through hole 431 are circular port, and the first check parts 44 form an overall structure with sidewall 41, and the second check parts 43 form an overall structure with roof 42; First check parts 44 can cover the first through hole 441, second check parts 43 completely can cover the second through hole 431 completely.

When the medicinal liquid in medicinal fluid bag is sufficient, it is inner that medicinal liquid drops onto body 3 by upper tubing 1, and under the guide functions of the roof 42 of circular arc, flow downward the higher outside liquid level 20 that formed as shown in Figure 1.When the height of outside liquid level 20 is more than the first through hole 441, medicinal liquid can flow into the first through hole 441, and drive the first check parts 44 radial direction upwards stir and open this first through hole 441, thus it is inner to make medicinal liquid enter into odour seal 4, and form lower inside liquid level 30 as shown in Figure 1.Medicinal liquid in odour seal 4 is flowed in patient body by lower tube for transfusion 5 and transfusion needle.

When the medicinal liquid in medicinal fluid bag is sufficient, if when having partial air to enter into the internal cavity of odour seal 4 by the first through hole 441, can manually extrude body 3.Because body 3 and odour seal 4 adopt the PET material with favorable elasticity to make, the air therefore entered in odour seal 4 can back down the second check parts 43 by the second through hole 431, and flow between the cavity between body 3 and odour seal 4.

When the medicinal liquid in medicinal fluid bag flows to end, during height reduction to the first through hole 441 of outside liquid level 20, the first check parts 44 are closed first through hole 441 under gravity.Second check parts 43 are falls downward also closed second through hole 431 under gravity.Thus form balancing Atmospheric pressure in odour seal 4 inside, and the bottom of guaranteeing at odour seal 4 remains the medicinal liquid of certain altitude, has effectively blocked in the lower tube for transfusion 5 that air enters bottom Murphy tube, thus has improve the safety of transfusion.

A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from this utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.

Claims (5)

1. a Murphy tube (100), comprise body (3), be arranged at the chock plug (2) of body upper and lower end parts, intrinsic upper tubing (1) and lower tube for transfusion (5) is stretched into from chock plug, it is characterized in that, described Murphy tube also comprises the odour seal (4) be connected with lower tube for transfusion, described odour seal (4) is made up of sidewall (41) and roof (42), and on described sidewall (41), be at least provided with multiple the first through hole (441) running through sidewall (41), and the first check parts (44), described first check parts (44) can be opened or closed described first through hole (441).

2. Murphy tube according to claim 1, is characterized in that, conically, described roof (42) is in circular arc for described sidewall (41).

3. Murphy tube according to claim 2, is characterized in that, the tapering of described sidewall (41) is 1:6-1:10.

4. Murphy tube according to claim 1, it is characterized in that, described roof (42) is provided with the second through hole (431) that runs through roof (42), and the second check parts (43), described second check parts (43) can be opened or closed described second through hole (431).

5. Murphy tube according to claim 4, is characterized in that, described first check parts (44) and the second check parts (43) are PET film.