A kind of medical locking-type speed regulating structure
Technical field
The present invention relates to technical field of medical instruments, especially relate to a kind of medical locking-type speed regulating structure of lockable roller.
Background technology
The infusion flow velocity regulator that often can use in medical treatment.The actuator of the most frequently used or traditional roller adjusting form in hospital now.Because having its huge advantage for this kind of structure, as simple in structure, need only a shell and roller and just can meet instructions for use.And shell and roller directly just can create by injection mo(u)lding, so production cost is also quite cheap.Actuator and transfusion catheter are generally packaging kit and sell, transport, use, and for avoiding malpractice, transfusion catheter is generally disposable use, and also just causing actuator is also disposable use.Cheap cost makes actuator well meet this custom requirement.For another example adjustment operation is convenient, no matter for medical personnel or sufferer family members, can carry out autonomous manual adjustments.
But the structure of this traditional actuator is too simple, may make roller produce mobile and affect flow velocity because of the reason such as touch by mistake, bring discomfort to patient.The existing flow regulator overwhelming majority does not have pair roller to carry out the structure of locking position, although in some patent, there is the actuator of locking roller structure, because of complex structure, high cost, the reasons such as complex operation, cannot produce or in clinical middle use.
Summary of the invention
The present invention, for overcoming above-mentioned deficiency of the prior art, provides a kind of medical locking-type speed regulating structure of lockable roller.
The present invention is achieved through the following technical solutions above-mentioned purpose.
A kind of medical locking-type speed regulating structure, comprises housing, roller and transfusion catheter, and described housing comprises a diapire and pair of sidewalls, and wherein diapire, for being obliquely installed, is respectively equipped with a chute on two sidewalls, and two runner positions are relative; The two ends of roller are extended with respectively rotating shaft, and rotating shaft is located at respectively in chute; Transfusion catheter passes housing, and between diapire and roller; On described sidewall, be rotatably connected to gland, sidewall is provided with screens; Gland is provided with friction part and buckle, and friction part is adjacent to the excircle of roller, and buckle is stuck in screens.
This programme has increased the gland that can rotate on shell, and gland can be by the form locking self-position of buckle.When gland fastens, friction part is pressed on roller, provides certain frictional force by extruding, and the final position of pair roller to a certain extent limits.When removing after the fastening of buckle, can dig gland, now can carry out the adjustment of optional position by pair roller.
This programme is to improve on existing traditional flow regulator, although improved structure is also very simple, has but played crucial locking position-limiting action.And improve the cost that also almost do not increase simple in structure, and consider that the consumption of this kind of structure in medical treatment is huge, and major part is disposable use, so can occupy huge market by this improvement, bring huge economic benefit.In addition, through my a large amount of retrievals, do not retrieve similar structure, or similarly structure enlightenment.Therefore this programme has outstanding substantive distinguishing features and significant progressive.
As further improvement, above-mentioned buckle slides or is rotatably connected on described gland.Can also between buckle and gland, be connected flexible member, to provide buckle to be stuck in the elastic force in screens.
As further improvement, the excircle of above-mentioned roller is provided with the first teeth, to increase the frictional force between roller and transfusion catheter or roller and gland, makes the locking of roller more stable.
As further improvement, the friction part of above-mentioned gland is the tooth bar that string the second teeth form, and the second teeth engage with the first above-mentioned teeth.This structure is directly carried out pair roller by the engagement of teeth and is locked, and makes the locking of roller more firm.
As further improvement, in the chute on above-mentioned sidewall, be provided with string the 3rd teeth, the rotating shaft of above-mentioned roller both sides is provided with the 4th teeth, and the 3rd teeth engage with the 4th teeth.This kind of structure is in the time regulating roller, and roller can only roll by the engagement of teeth, and can not produce slip, so degree of regulation is more accurate.In addition, after locking roller, the upper and lower that is equivalent to roller has two pairs of gear pairs, so not only can make the locking of roller more firm, and do not need pressure to make to produce frictional force between gland and roller, while also just having avoided fastening gland, transfusion catheter generation pressure is affected the adjusting of flow velocity.
Brief description of the drawings
Fig. 1 is the perspective view of embodiment 1.
Fig. 2 is the side structure schematic diagram of embodiment 1.
Fig. 3 is the perspective view of embodiment 1 middle shell.
Fig. 4 is the perspective view of roller in embodiment 1.
Fig. 5 is the perspective view of gland in embodiment 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.Wherein accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.For the present embodiment is better described, in accompanying drawing, some parts or feature can be omitted to some extent, zoom in or out, and do not represent the size of actual product.In addition, for a person skilled in the art, in accompanying drawing some known features and explanation to some extent omit be understandable.
Embodiment 1:
As shown in Figure 1, for the medical locking-type speed regulating structure of one of the present embodiment, comprise housing 1, roller 2, transfusion catheter 3 and gland 4.
As shown in Figure 3, housing 1 comprises a diapire 11 and pair of sidewalls 12, and wherein diapire 11, for being obliquely installed, is respectively equipped with 13, two chute 13 positions of a chute relative on two sidewalls 12.
As shown in Figure 4, the two ends of roller 2 are extended with respectively rotating shaft 21.
As shown in Figure 2, rotating shaft 21 is located at respectively in chute 13; Transfusion catheter 3 passes housing 1, and between diapire 11 and roller 2.
The improvement of the present embodiment is: as shown in Figure 3, the side of sidewall 12 is stretched out and shipped and resell on another market 14 and bayonet lock 15, is provided with string the 3rd teeth 16 in the chute 13 on sidewall 12.As shown in Figure 4, the excircle of roller 2 is evenly provided with the first teeth 22, and the rotating shaft 21 of roller 2 both sides is provided with the 4th teeth 23.
As shown in Figure 5, gland 4 is provided with axis hole 41 and draw-in groove 42; Be positioned at the stage casing of gland 4, form tooth bar by string the second teeth 43.
Again as shown in Figure 2, the axis hole 41 of gland 4 is enclosed within shipping and reselling on another market on 14 of sidewall 12, makes the gland 4 can be around 14 rotations of shipping and reselling on another market.The draw-in groove 42 of gland 4 can be stuck on the bayonet lock 15 of sidewall 12, and gland 4 is locked.
In the present embodiment, the tooth top portion of teeth is fillet processing, so that aligning and engaging between teeth.
Gland 4 in the present embodiment is transparent plastic material, and plastics have good elastic deformation characteristic, by the strain of gland 4, uses very little power just can make draw-in groove 42 be stuck on bayonet lock 15, or departs from bayonet lock 15.Transparent gland 4 is also convenient to observe the position of roller 2.
As shown in Figure 1, the present embodiment is in the time regulating roller 2, and the 3rd teeth 16 in the 4th teeth 23 and chute 13 in rotating shaft 21 engage, and roller 2 can only roll, and can not produce slip, so degree of regulation is more accurate.As shown in Figure 2, roller 2 is adjusted to behind appropriate location, rotates gland 4, the second teeth 43 on gland 4 is engaged with the first teeth 22 of roller 2 excircles, and draw-in groove 42 is stuck on bayonet lock 15, just can be by the locking position of roller 2.Be equivalent to like this roller 2 has two pairs of gear pairs simultaneously, not only can make the locking of roller 2 more firm, and does not need pressure to make to produce frictional force between gland 4 and roller 2, while also just having avoided fastening gland 4, transfusion catheter 3 is produced pressure and affects flow velocity.
Move a little draw-in groove 42 with hands and can depart from bayonet lock 15, just can dig gland 4, now can carry out the adjustment of optional position by pair roller 2.
The present embodiment is to improve on existing traditional flow regulator, although improved structure is also very simple, has but played crucial locking position-limiting action.And improve the cost that also almost do not increase simple in structure, and consider that the consumption of this kind of structure in medical treatment is huge, and major part is disposable use, so can occupy huge market by this improvement, bring huge economic benefit.In addition, through my a large amount of retrievals, do not retrieve similar structure, or similarly structure enlightenment.Therefore the present embodiment has outstanding substantive distinguishing features and significant progressive.
In the explanation of above-described embodiment or accompanying drawing, describe the word of position relationship only for exemplary illustration, can not be interpreted as limitation of the present invention.
In addition, the above embodiments are only used to an example that more clearly illustrates that the present invention lifts, and are not the restrictions to embodiments of the present invention.It will be apparent to those skilled in the art that and can also make on the basis of the above description other multi-form variation or change.Here cannot give exhaustive to all embodiments.All any amendments of doing within the spirit and principles in the present invention, be equal to and replace or improvement etc., within all should being included in the protection domain of the claims in the present invention.