CN201814942U

CN201814942U - Universal transfusion flow rate adjusting device

Info

Publication number: CN201814942U
Application number: CN201020565093XU
Authority: CN
Inventors: 周克东
Original assignee: AMSINO MEDICAL GROUP (SHANGHAI) Co Ltd
Current assignee: Amsino Medical Equipment (Kunshan) Co., Ltd.
Priority date: 2010-10-18
Filing date: 2010-10-18
Publication date: 2011-05-04
Anticipated expiration: 2020-10-18

Abstract

The utility model relates to a universal transfusion flow rate adjusting device which comprises a shell, a roller wheel and a transfusion catheter, wherein the shell comprises an inclined bottom wall and a pair of side walls, wherein the pair of side walls are provided with a pair of sliding grooves which are opposite to each other; the roller wheel is provided with a roller shaft; two ends of the roller shaft are respectively arranged in the pair of sliding grooves; the transfusion catheter passes through the shell and is positioned between the bottom wall of the shell and the roller wheel; the universal transfusion flow rate adjusting device is characterized in that two ends of the roller shaft are respectively provided with a gear; the side walls of the sliding grooves are provided with racks; and the two gears are respectively meshed with the racks in the sliding grooves. In the long-time transfusion process, as the gears are meshed with the racks in the sliding grooves, the roller wheel can not be moved in an unartificial way, and the transfusion speed is ensured to be stable.

Description

The general flow regulator of infusing

Technical field

This utility model relates to medical instruments field, relates in particular to a kind of clinical flow regulator that is used to infuse.

Background technology

Transfusion is clinical a kind of treatment means commonly used, according to patient's state of an illness needs various medicines, blood, nutrient substance etc. is imported human body.The adjusting of transfusion speed is the top priority after the nursing basic fundamental operation-venipuncture success.Transfusion speed will be regulated according to patient's age, the state of an illness, pharmaceutical properties, transfusion purpose.Sum up and to reduce according to hospital's clinical care experience for many years governing speed of will infusing:

1. regulate conventional clinically input some drugs such as antibiotic, hemorrhage etc., 60～80 of the general per minutes of transfusion speed according to pharmaceutical properties;

2. regulate according to the state of an illness and transfusion purpose, the patient of cranium brain, heart and lung diseases, transfusion speed should be slow.Generally require at per minute below 20～40, sometimes even need be below 15 at per minute.The shock patient that hypovolemia causes, preceding 2 hours should be at per minute more than 150 with interior transfusion speed.Serious dehydration patient, if the good person of cardio-pulmonary function, transfusion speed is generally about 120 of per minutes, the transfusion total amount should be totally lost in 6～8 hours in one day, and the patient is fully had a rest after transfusion finishes;

3. adjusting in particular cases according to the difference of therapeutic purposes, will keep constant transfusion speed during transfusion, and what have will regulate transfusion speed according to actual needs at any time.For example, during the dehydration patient infusion, should be first quick and back slow; Transfusion speed should keep blood pressure at certain level when using pressor agent, and it is suitable can not making undue rising of blood pressure again.

As shown in the above, regulate transfusion speed to effective treatment, avoid causing complication, promote patient's early recovery that important role is arranged.Present roller-inclined-plane the flow regulator that generally uses clinically is to roll transfusion catheter on the inclined-plane diapire that is arranged on housing by being arranged on detent projection on the roller surface, changes the sectional area of transfusion catheter, reaches the purpose of adjusting transfusion speed.This roller-inclined-plane flow regulator is in the process of transfusion, and roller usually slippage can take place, thereby the transfusion speed that causes non-artificial factor changes, and can't guarantee the degree of regulation of infusing.Simultaneously, above-mentioned defective also can force medical personnel to increase the monitoring infusion frequency, has increased nursing staff's workload.

Summary of the invention

Technical problem to be solved in the utility model is to provide roller in a kind of clinical transfusion speed adjustment process that the roller-inclined-plane flow regulator of slippage can not take place after regulating.

The technical scheme that this utility model adopted is: a kind of general flow regulator of infusing, comprise housing, roller and transfusion catheter, and housing comprises a diapire and a pair of sidewalls that tilts, pair of sidewalls is provided with a pair of chute respect to one another; Roller is provided with a roller shaft, and the two ends of this roller shaft are located at respectively in the described a pair of chute; Transfusion catheter passes housing, and between the diapire and described roller of housing; Be characterized in that the two ends of roller shaft are respectively equipped with a gear, the sidewall of this a pair of chute is provided with tooth bar, and these two gears are meshed with tooth bar in this a pair of chute respectively.

After adopting technique scheme, after the operator stirs roller and finishes transfusion speed and regulate, be meshing with each other, roller can be positioned at relevant position in the housing securely by the gear at roller shaft two ends and the tooth bar in the chute.In addition, because the detent projection of roller surface is circular arc, smoother, it cooperates with shell bottom wall and can push down transfusion catheter more lenitively, makes transfusion catheter produce strain.Thereby, in long infusion process, can stably keep the transfusion catheter sectional area be scheduled to, can on transfusion catheter, not produce irreversible impression; Simultaneously, also can not produce the roller position that the elastic deformation of transfusion catheter causes and move, guarantee the long-time stable of transfusion speed.This utility model is simple in structure, and is easy to use, is fit to various infusion process.

Description of drawings

Fig. 1 is the perspective view according to the flow regulator of this utility model one embodiment.

Fig. 2 is the schematic side view according to the flow regulator of this utility model one embodiment.

Fig. 3 is the perspective view of a kind of embodiment of housing of the present utility model.

Fig. 4 is the schematic side view of a kind of embodiment of housing of the present utility model.

Fig. 5 is the perspective view of a kind of embodiment of roller of the present utility model.

Fig. 6 is that the master of a kind of embodiment of roller of the present utility model looks sketch map.

Fig. 7 is the schematic side view of a kind of embodiment of roller of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is made and to be further specified.

Referring to figs. 1 to Fig. 6, flow regulator of the present utility model comprises housing 1, roller 2 and transfusion catheter (not shown).Housing 1 comprises a diapire 11 and a pair of sidewalls 12 that tilts.On diapire 11, be provided with known v-depression 110.Pair of sidewalls 12 is provided with a pair of chute 13 respect to one another, and the top at the two ends of pair of sidewalls 12 is provided with the rib 14 that this pair of sidewalls 12 is linked together.Roller 2 is provided with a roller shaft 21, and the two ends of this roller shaft 21 are respectively equipped with a gear 22.The sidewall 131 of a pair of chute 13 is provided with tooth bar 15, and these two gears 22 are meshed with tooth bar 15 in this a pair of chute respectively.Transfusion catheter passes housing 1, and between the diapire 11 and roller 2 of housing 1.Evenly be distributed with a plurality of detent projection 23 on the excircle of roller 2 continuously, the shape that the shape of these dentations is preferably smoother, for example, the shape of detent projection 23 can be circular-arc, as shown in Figure 7.Preferably, the gear 22 at roller shaft 21 two ends is integrally formed with this roller shaft, and tooth bar 15 also is integrally formed with the sidewall 131 of chute.

Roller 2 can begin to move between a position and the closed position along diapire 11 and the pair of sidewalls 12 common cavitys 18 that limit together, and chute 13 pair rollers 2 mobile plays guide effect.When roller 2 was in original position, transfusion catheter was not subjected to the compressing of roller 2, and the cross section of transfusion catheter keeps naturalness, and the liquid in the transfusion catheter is fully mobile; When roller 2 was in the closed position, transfusion catheter was under the compressing of roller 2 and the inclined-plane diapire 11 of housing, and its inwall forms linear the applying, and the liquid in the transfusion catheter does not flow.

In this utility model, the profile of tooth of gear 22 for example can be rectangle, triangle, trapezoidal or zigzag.In long infusion process, because the tooth bar 15 in gear 22 and the chute is meshing with each other, make roller 2 that unartificial moving can not taken place, thereby guaranteed the stable of infusion tube cross sectional shape, make transfusion speed keep stable, guarantee the transfusion safety of sufferer, alleviated medical personnel's control amount simultaneously.

Claims

1. the flow regulator that transfusion is general comprises housing, roller and transfusion catheter, and described housing comprises a diapire and a pair of sidewalls that tilts, and described pair of sidewalls is provided with a pair of chute respect to one another; Described roller is provided with a roller shaft, and the two ends of this roller shaft are located at respectively in the described a pair of chute; Described transfusion catheter passes described housing, and between the diapire and described roller of housing; It is characterized in that the two ends of described roller shaft are respectively equipped with a gear, the sidewall of described a pair of chute is provided with tooth bar, and these two gears are meshed with tooth bar in this a pair of chute respectively.

2. flow regulator as claimed in claim 1 is characterized in that, the gear and the described roller shaft at described roller shaft two ends are integrally formed.

3. flow regulator as claimed in claim 1 or 2 is characterized in that, described tooth-formation of gear is rectangle, triangle, trapezoidal or zigzag.

4. flow regulator as claimed in claim 1 is characterized in that, evenly is distributed with a plurality of detent projection on the excircle of described roller continuously.

5. flow regulator as claimed in claim 4 is characterized in that being shaped as of each described detent projection is circular-arc.

6. flow regulator as claimed in claim 1 is characterized in that the sidewall of described tooth bar and described chute is integrally formed.