CN213219948U

CN213219948U - Accurate controller for infusion apparatus

Info

Publication number: CN213219948U
Application number: CN202021384405.7U
Authority: CN
Inventors: 吕小春; 胡金莲; 张�荣
Original assignee: Peoples Hospital of Deyang City
Current assignee: Peoples Hospital of Deyang City
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-18
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses an accurate controller for an infusion apparatus, which comprises a dropping liquid pipe main body, wherein one end of the dropping liquid pipe main body is provided with a liquid inlet pipe, and the other end is provided with a liquid outlet pipe; a dropping liquid outer barrel is fixed at the liquid inlet pipe in the dropping liquid pipe main body, and a plurality of outer barrel through holes arranged at intervals in the horizontal direction are formed in the dropping liquid outer barrel; nested dropping liquid inner tube that is provided with in the dropping liquid urceolus, the feed liquor pipe stretches into the dropping liquid inner tube, the dropping liquid inner tube rotates with dropping liquid urceolus and feed liquor pipe and is connected correspond on the dropping liquid inner tube a plurality of inner tube through-holes have been seted up to the urceolus through-hole, through rotatory the dropping liquid inner tube communicates in proper order urceolus through-hole and inner tube through-hole or cut off the intercommunication of urceolus through-hole and inner tube through-hole. The utility model discloses a rotatory dropping liquid inner tube communicates urceolus through-hole and inner tube through-hole in proper order to the intercommunication quantity of control urceolus through-hole and inner tube through-hole realizes the purpose of accurate regulation infusion speed.

Description

Accurate controller for infusion apparatus

Technical Field

The utility model relates to the technical field of medical auxiliary equipment, in particular to an accurate controller for an infusion apparatus.

Background

Infusion therapy is the most common treatment method in hospitals, and is a method for infusing a large amount of electrolytes, sterile liquid and medicaments into the body from veins according to the principles of atmospheric pressure and hydrostatic pressure. The transfusion device has simple structure and low price, is widely applied clinically, mainly comprises an air inlet pipe, a transfusion pipe, a Murphy drip cup, a wheel clamp and a needle head, and can transfuse the liquid into the body of a patient by the pressure provided by the liquid level difference.

When an infusion apparatus is used for infusion, the best treatment effect can be obtained only by applying different infusion speeds according to the condition of a patient and the medicine to be infused. In the prior art, medical staff usually adjust the infusion speed by adjusting a flow speed adjuster on an infusion apparatus, the flow speed adjuster is generally of a vertically arranged roller structure, and the infusion tube is extruded for adjustment, so that the sliding is easy to generate, and the treatment effect is influenced; moreover, the structure can not accurately control the input speed of the medicine, and particularly, when special medicines such as narcotic, antihypertensive medicines sodium nitroprusside and TPN (thermoplastic vulcanizate) are delivered to the old, children and people with weak constitution, the infusion speed of the medicine needs to be accurately controlled, otherwise, the medicine has great influence on the human body and has serious consequences.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide an accurate controller for an infusion apparatus, which can conveniently adjust the infusion speed and accurately control the liquid input speed.

An accurate controller for an infusion apparatus comprises a dropping liquid pipe main body, wherein one end of the dropping liquid pipe main body is provided with a liquid inlet pipe, and the other end of the dropping liquid pipe main body is provided with a liquid outlet pipe; a dropping liquid outer barrel is fixed at the liquid inlet pipe in the dropping liquid pipe main body, and a plurality of outer barrel through holes arranged at intervals in the horizontal direction are formed in the dropping liquid outer barrel; the inner of the dropping liquid outer cylinder is nested with a dropping liquid inner cylinder, the liquid inlet pipe extends into the dropping liquid inner cylinder, the dropping liquid inner cylinder is rotationally connected with the dropping liquid outer cylinder and the liquid inlet pipe, a plurality of inner cylinder through holes are arranged on the dropping liquid inner cylinder corresponding to the outer cylinder through holes, and the outer cylinder through holes and the inner cylinder through holes are sequentially communicated or the communication of the outer cylinder through holes and the inner cylinder through holes is cut off through the rotating dropping liquid inner.

In one embodiment, the covering angle of the dropping outer barrel part provided with the outer barrel through hole on the rotating surface is smaller than that of the dropping outer barrel part not provided with the outer barrel through hole on the rotating surface; the covering angle of the inner dropping cylinder part provided with the inner cylinder through hole on the rotating surface is smaller than that of the inner dropping cylinder part which is not provided with the inner cylinder through hole.

In one embodiment, the distance between two adjacent outer cylinder through holes in the horizontal direction is equal; the distance between two adjacent inner cylinder through holes in the horizontal direction is equal.

In one embodiment, one end of the dropping inner barrel for operating rotation is provided with an indexing positioning mechanism, and the indexing positioning mechanism is provided with indexing gears corresponding to the interval distribution area of the through holes of the outer barrel in the horizontal direction.

In one embodiment, the outer side surface of the indexing positioning mechanism is provided with a gear value corresponding to an indexing gear, a fixed block is fixed on the liquid inlet pipe above the indexing positioning mechanism, and a positioning mark is arranged on the fixed block.

In one embodiment, the total area of the through holes of the outer cylinder or the through holes of the inner cylinder is equal to the cross-sectional area of the liquid inlet pipe.

In one embodiment, the liquid inlet pipe or the liquid outlet pipe of the dropping liquid pipe main body is also provided with a rotary closing mechanism for opening and closing the liquid inlet pipe or the liquid outlet pipe.

In one embodiment, a sealing element is arranged between the inner dropping cylinder and the outer dropping cylinder.

In one embodiment, the outer bottom of the drip outer cylinder is tapered.

In one embodiment, the main body of the dropping tube is made of transparent material.

Compared with the prior art, the utility model discloses a feed liquor pipe and drain pipe connect the dropping liquid pipe main part on the transfer line, and rotatory dropping liquid inner tube of rethread communicates urceolus through-hole and inner tube through-hole in proper order, and an urceolus through-hole and an inner tube through-hole correspond the intercommunication, and through the intercommunication quantity of control urceolus through-hole and inner tube through-hole, the purpose of the accurate speed of adjusting the infusion is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, drawings of other embodiments can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a precise controller for an infusion apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the rotary dropping liquid inner cylinder provided by the embodiment of the present invention for cutting off the communication between the through hole of the outer cylinder and the through hole of the inner cylinder;

fig. 4 is a schematic structural diagram of an indexing positioning mechanism according to an embodiment of the present invention;

FIG. 5 is an enlarged partial view of the portion indicated by circle B in FIG. 1;

fig. 6 is a schematic structural diagram of a rotary closing mechanism according to an embodiment of the present invention.

Wherein: 1-dropping tube main body, 2-liquid inlet tube, 3-liquid outlet tube, 4-dropping outer tube, 41-outer tube through hole, 42-cone part, 5-dropping inner tube, 51-inner tube through hole, 6-indexing positioning mechanism, 61-outer disc, 611-cam, 62-inner disc, 621-indexing gear, 63-thread part, 64-gear value, 7-rotary closing mechanism, 71-fixed disc, 72-rotary disc, 73-transmission rod, 74-blade, 81-first sealing element, 82-second sealing element, 83-third sealing element, 84-fourth sealing element, 9-fixed block, 91-positioning mark, alpha-first angle and beta-second angle.

Detailed Description

In order to facilitate understanding of the present invention, a precise controller for an infusion set will be described more fully with reference to the accompanying drawings. The figures show preferred embodiments of the precision controller for an infusion set. However, the precise controller for the infusor may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the precise controller for an infusion set is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, an embodiment of the present invention provides an accurate controller for an infusion apparatus, which includes a dropping tube main body 1, wherein one end of the dropping tube main body 1 is provided with a liquid inlet tube 2, and the other end is provided with a liquid outlet tube 3; a dropping liquid outer barrel 4 is fixed in the dropping liquid pipe body 1 at the position of the liquid inlet pipe 2, and a plurality of outer barrel through holes 41 which are arranged at intervals in the horizontal direction are arranged on the dropping liquid outer barrel 4; nested in the dropping liquid urceolus 4 is provided with dropping liquid inner tube 5, feed liquor pipe 2 stretches into dropping liquid inner tube 5, dropping liquid inner tube 5 rotates with dropping liquid urceolus 4 and feed liquor pipe 2 to be connected, correspond urceolus through-hole 41 on dropping liquid inner tube 5 and seted up a plurality of inner tube through-holes 51, communicate urceolus through-hole 41 and inner tube through-hole 51 in proper order through rotatory dropping liquid inner tube 5, an urceolus through-hole 41 and an inner tube through-hole 51 correspond the intercommunication, the intercommunication quantity of control urceolus through-hole 41 and inner tube through-hole 51 realizes the purpose.

Specifically, the dropping liquid outer cylinder 4 and the dropping liquid inner cylinder 5 are both cylindrical, the inner cylinder through hole 51 is opened on the dropping liquid inner cylinder 5 corresponding to the outer cylinder through hole 41, that is, the number and the aperture of the inner cylinder through hole 51 and the outer cylinder through hole 41 are equal, the opening positions of the inner cylinder through hole 51 and the outer cylinder through hole 41 are the same, and when the dropping liquid inner cylinder 5 is rotated, the inner cylinder through hole 51 can be communicated with the outer cylinder through hole 41 to form a liquid flow channel. The plurality of outer cylinder through holes 41 are arranged at intervals in the horizontal direction, that is, the directions of two ends of the liquid inlet pipe 2 and the liquid outlet pipe 3 are vertical directions, and the direction vertical to the vertical direction is a horizontal direction, it is conceivable that the dropping liquid outer cylinder 4 is vertically cut into a rectangle, and the plurality of outer cylinder through holes 41 are arranged at intervals in the horizontal direction, so that when the dropping liquid inner cylinder 5 rotates, the inner cylinder through holes 51 on the dropping liquid inner cylinder can be sequentially communicated with the outer cylinder through holes 41 in the rotating direction, and the flow rate of the liquid is adjusted; the plurality of outer cylinder through holes 41 may or may not be at the same height in the vertical direction, because the rotation direction is the horizontal direction, as long as there is a space between the plurality of outer cylinder through holes 41 in the horizontal direction.

Further, as shown in fig. 2 and 3, the covering angle of the part of the dropping liquid outer cylinder 4 provided with the outer cylinder through hole 41 on the rotating surface is smaller than that of the part of the dropping liquid outer cylinder 4 not provided with the outer cylinder through hole 41 on the rotating surface; the inner dropping cylinder 5 part provided with the inner cylinder through hole 51 is smaller than the covering angle of the inner dropping cylinder 5 part which is not provided with the inner cylinder through hole 51 on the rotating surface, through rotating the inner dropping cylinder 5, the inner cylinder through hole 51 is covered and blocked by the dropping liquid outer cylinder 4 part which is not provided with the outer cylinder through hole 41, the outer cylinder through hole 41 is blocked by the dropping liquid inner cylinder 5 part which is not provided with the inner cylinder through hole 51, the communication of the outer cylinder through hole 41 and the inner cylinder through hole 51 is cut off, and the communication of the dropping liquid inner cylinder 5 and the dropping liquid pipe.

Specifically, the rotation surface is a 360-degree rotation surface that is irradiated with the rotation center axis of the inner dropping cylinder 5 as the origin and has a rotation direction in which the inner dropping cylinder 5 rotates within the outer dropping cylinder 4. Since the inner cylinder through hole 51 is arranged corresponding to the outer cylinder through hole 41, the covering angle of the part of the dropping inner cylinder 5 provided with the inner cylinder through hole 51 on the rotating surface, the covering angle of the part of the dropping outer cylinder 4 provided with the outer cylinder through hole 41 on the rotating surface is the same, therefore, the four angles can be briefly described as the covering angles of the cylinder part provided with the through hole on the rotating surface, i.e. a first angle alpha, and an angle of coverage of the cylinder portion not provided with the through-hole on the plane of rotation, i.e. a second angle beta, the first angle alpha being smaller than the second angle beta, it is understood that the area of the barrel portion not provided with the through-holes is larger than the area of the barrel portion provided with the through-holes, the through hole is blocked by the cylinder by rotating the dropping liquid inner cylinder 5, so that the communication between the outer cylinder through hole 41 and the inner cylinder through hole 51 is cut off, and the communication between the dropping liquid inner cylinder 5 and the dropping liquid pipe main body 1 is cut off.

Further, as shown in fig. 2, the distance between two adjacent outer cylinder through holes 41 in the horizontal direction is equal; the distance between the two adjacent inner cylinder through holes 51 in the horizontal direction is equal, the rotation stroke of the liquid dropping inner cylinder 5 can be set to a certain value, and the sequential communication between the plurality of outer cylinder through holes 41 and the plurality of inner cylinder through holes 51 is further conveniently controlled.

Further, as shown in fig. 1, 4 and 5, one end of the dropping inner barrel 5 for operation and rotation is provided with an indexing positioning mechanism 6, the indexing positioning mechanism 6 is provided with indexing positions 621 corresponding to the interval distribution areas of the outer barrel through holes 41 in the horizontal direction, namely, the number of the indexing positions 621 is the same as the number of the interval distribution areas of the plurality of outer barrel through holes 41 in the horizontal direction, the covering angle of a single indexing position 621 on the rotation surface is the same as the covering angle of the interval distribution area of the single outer barrel through hole 41 on the rotation surface, and the arrangement orientation of the plurality of indexing positions 621 on the rotation surface is the same as the arrangement orientation of the interval distribution areas of the plurality of outer barrel through holes 41. Through the arrangement of the indexing positioning mechanism 6, the rotation stroke of the liquid dropping inner barrel 5 can be controlled according to the indexing gear 621, and the accurate positioning of the inner barrel through hole 51 and the outer barrel through hole 41 is realized.

Specifically, as shown in fig. 4, the indexing positioning mechanism 6 includes an outer disc 61 and an inner disc 62 which are coaxially arranged, a through hole is formed in the middle of the inner disc 62 and used for fixing the inner disc 62 on the liquid inlet pipe 2 in a penetrating manner, the outer disc 61 is coaxially and fixedly connected with the dropping liquid inner cylinder 5, and the outer disc 61 and the inner disc 62 can rotate relatively; a plurality of indexing steps 621 are provided on the outer circumferential surface of the inner disc 62 corresponding to the arrangement direction of the outer cylinder through hole 41, a cam 611 is provided on the inner circumferential surface of the outer disc 61 between the outer disc 61 and the inner disc 62, and the cam 611 is shifted among the plurality of indexing steps 621 by rotating the outer disc 61, thereby controlling the rotation stroke of the dropping inner cylinder 5. Further, a screw portion 63 is further provided on an outer surface of the outer disc 61 to facilitate rotation of the outer disc 61.

Further, as shown in fig. 1 and 5, the number and the position of the outside surface of the indexing positioning mechanism 6 corresponding to the indexing positions 621 are provided with the position value 64, a fixing block 9 is fixed on the liquid inlet pipe 2 above the indexing positioning mechanism 6 to further limit the moving range of the outer disc 61 in the vertical direction, so as to prevent the outer disc 61 and the inner disc 62 from falling off, the fixing block 9 is further provided with a positioning mark 91, and the user can conveniently check the corresponding position change through the setting of the position value 64 and the positioning mark 91.

Further, the total area of the through holes 41 of the outer cylinder or the through holes 51 of the inner cylinder is equal to the cross section area of the liquid inlet pipe 2, so that the uniformity of the liquid flow is realized.

Further, as shown in fig. 1 and fig. 6, a rotary closing mechanism 7 is further disposed at the liquid inlet pipe 2 or the liquid outlet pipe 3 of the dropping liquid pipe body 1 for opening and closing the liquid inlet pipe 2 or the liquid outlet pipe 3. Specifically, as shown in fig. 6, the rotary closing mechanism 7 includes a fixed disk 71, a rotating disk 72, a plurality of transmission rods 73 and a plurality of blades 74, a liquid flow through hole is formed in the middle of the fixed disk 71, the aperture of the liquid flow through hole is larger than the inner diameter of the liquid inlet pipe 2 or the liquid outlet pipe 3, and liquid in the liquid inlet pipe 2 or the liquid outlet pipe 3 flows through the liquid flow through hole; the blades 74 are in a spiral shape, the blades 74 are spliced and covered at the liquid through hole, for example, a single blade 74 is taken as an example, one end of the blade 74 is rotatably connected with the fixed disc 71, the other end of the blade 74 is rotatably connected with one end of a transmission rod 73, the other end of the transmission rod 73 is rotatably connected with the rotating disc 72, the blades 74 and the transmission rods 73 are arranged in the same manner, the transmission rod 73 and the blades 74 are pulled by rotating the rotating disc 72, the opening and closing of the blades 74 at the liquid through hole are controlled, and the opening and closing of the liquid inlet pipe 2 or the liquid outlet pipe 3 are further controlled. By arranging the rotary closing mechanism 7, the opening and closing of the liquid inlet pipe 2 or the liquid outlet pipe 3 can be quickly controlled, the blades 74 are tightly closed, and blood can be prevented from flowing backwards when the transfusion is finished or a transfusion bottle is replaced.

Further, as shown in fig. 1 to 3, a sealing member is provided between the dropping liquid inner cylinder 5 and the dropping liquid outer cylinder 4 to further enhance the sealing property between the dropping liquid inner cylinder 5 and the dropping liquid outer cylinder 4. Specifically, in the present embodiment, a first sealing member 81 and a second sealing member 82 are provided on the dropping inner cylinder 5 as shown in fig. 1, the inner cylinder through hole 51 and the outer cylinder through hole 41 in the present embodiment are located on the same horizontal line, the first sealing member 81 is provided on the upper side of the inner cylinder through hole 51 around the dropping inner cylinder 5, and the second sealing member 82 is provided on the lower side of the inner cylinder through hole 51 around the dropping inner cylinder 5, so as to enhance the sealing in the vertical direction; and a third sealing member 83 and a fourth sealing member 84 which are arranged on the dropping outer cylinder 4 as shown in fig. 2 and 3, wherein the third sealing member 83 and the fourth sealing member 84 are vertically arranged on two sides of the cylinder part of the dropping outer cylinder 4 provided with the outer cylinder through hole 41 to enhance the sealing in the horizontal direction. In other embodiments, the first seal 81 and the second seal 82 may be disposed on the drip outer tube 4, and the third seal 83 and the fourth seal 84 may be disposed on the drip inner tube 5 in the same manner and at the same position, which can bring the same technical effects.

Further, as shown in fig. 1, the outer bottom of the dropping outer tube 4 is tapered to form a taper portion 42 which is arranged downward, so that the liquid drops on the taper portion 42 and drops intensively, and the splashing of the liquid drops is avoided.

Further, the dropping liquid tube main body 1 can be made of transparent materials, so that a user can conveniently observe the internal condition of the dropping liquid tube main body 1.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An accurate controller for an infusion apparatus is characterized by comprising a dropping liquid pipe main body, wherein one end of the dropping liquid pipe main body is provided with a liquid inlet pipe, and the other end of the dropping liquid pipe main body is provided with a liquid outlet pipe; a dropping liquid outer barrel is fixed at the liquid inlet pipe in the dropping liquid pipe main body, and a plurality of outer barrel through holes arranged at intervals in the horizontal direction are formed in the dropping liquid outer barrel; nested dropping liquid inner tube that is provided with in the dropping liquid urceolus, the feed liquor pipe stretches into the dropping liquid inner tube, the dropping liquid inner tube rotates with dropping liquid urceolus and feed liquor pipe and is connected correspond on the dropping liquid inner tube a plurality of inner tube through-holes have been seted up to the urceolus through-hole, through rotatory the dropping liquid inner tube communicates in proper order urceolus through-hole and inner tube through-hole or cut off the intercommunication of urceolus through-hole and inner tube through-hole.

2. The precise controller for the infusion set according to claim 1, wherein the covering angle of the dropping outer cylinder part provided with the outer cylinder through hole on the rotating surface is smaller than the covering angle of the dropping outer cylinder part not provided with the outer cylinder through hole on the rotating surface; be provided with the coverage angle of the dropping liquid inner tube part of inner tube through-hole on the plane of rotation is less than and is not provided with the coverage angle of the dropping liquid inner tube part of inner tube through-hole on the plane of rotation.

3. The precise controller for the infusion set according to claim 2, wherein the distance between the through holes of the outer cylinder in the horizontal direction is equal; the distance between two adjacent inner cylinder through holes in the horizontal direction is equal.

4. A precise controller for an infusion set according to any one of claims 1 to 3, wherein one end of the dropping inner cylinder for operation and rotation is provided with an indexing positioning mechanism, and the indexing positioning mechanism is provided with indexing gears corresponding to the interval distribution area of the through hole of the outer cylinder in the horizontal direction.

5. The precise controller for infusion set according to claim 4, wherein the indexing positioning mechanism has a gear position on its outer surface corresponding to the indexing gear position, a fixed block is fixed on the liquid inlet pipe above the indexing positioning mechanism, and the fixed block is provided with a positioning mark.

6. The precise controller for infusion set according to claim 1, wherein the total area of the through holes of the outer cylinder or the through holes of the inner cylinder is equal to the cross-sectional area of the liquid inlet pipe.

7. A precise controller for an infusion set according to any one of claims 1 to 3, wherein the dropping tube body is further provided with a rotary closing mechanism for opening and closing the liquid inlet tube or the liquid outlet tube.

8. The precise controller for infusion set according to claim 1, wherein a sealing member is provided between the inner dropping cylinder and the outer dropping cylinder.

9. The precise controller for infusion set according to claim 1, wherein the outer bottom of the dropping outer cylinder is tapered.

10. The precise controller for infusion set according to claim 1, wherein the main body of the dropping tube is made of transparent material.