CN105362072A - Integral hemodialysis bucket cover - Google Patents

Abstract

The invention relates to the technical field of hemodialysis equipment. An integral hemodialysis barrel cover comprises a cover body, wherein the cover body comprises a top wall and a cylindrical side wall, the top wall comprises a fixing portion and an opening portion, the fixing portion is connected with the side wall, the opening portion is connected with the fixing portion in a sealing mode through a tearing line arranged on the inner surface of the top wall, the portion, corresponding to the tearing line, of the outer surface of the top wall is a convex surface, the fixing portion, the opening portion and the tearing line are connected together in an integrated structure mode, a connecting block is arranged at one end of the opening portion, and the connecting block is connected with a pull ring which can stand relative to the opening portion by taking the connecting block as a fulcrum and is in a flat state. The invention provides an integral hemodialysis barrel cover with a convenient opening cover and a good compression-resistant effect, and solves the problem that the existing integral hemodialysis barrel cover with an inlet and an outlet is inconvenient to open the opening cover.

Description

Integral hemodialysis bucket cover

technical field

The invention relates to the technical field of hemodialysis equipment, in particular to an integral hemodialysis barrel cover.

Background technique

Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains the blood from the body to the outside of the body through a dialyzer composed of countless hollow fibers, and the blood and the electrolyte solution (dialysate) with a similar concentration to the body are exchanged through diffusion/convection inside and outside the hollow fibers , remove metabolic waste from the body, maintain electrolyte and acid-base balance; remove excess water from the body at the same time, and return the purified blood to the entire process called hemodialysis. During hemodialysis, the concentrate needs to be delivered to the hemodialysis machine. The concentrate is stored in hemodialysis tubs for delivery. In the Chinese patent No. 201420778811x, the date of authorization announcement is April 29, 2015, and the patent document titled "a hemodialysis concentrate bucket" discloses an existing hemodialysis bucket. The hemodialysis barrel in this patent document includes a barrel and a barrel lid covered on the barrel. When in use, by opening the barrel lid, the concentrated solution input tube of the hemodialysis machine is input into the hemodialysis barrel through the barrel mouth and connected to the hemodialysis barrel by a pump. The output is realized in the input pipe, and there is a gap between the barrel mouth and the concentrated solution input pipe of the hemodialysis machine so that air can enter so that the concentrated solution can be exported.

The existing hemodialysis concentrate barrels have the following disadvantages: during use, dust will enter the concentrate through the mouth of the barrel, resulting in contamination of the concentrate and affecting health; long-term exposure of the concentrate is easy to be polluted; there is cross-contamination when the barrel is reused The risk of air bubbles present in the concentrate may be generated during delivery, which may transfer to the patient's body and cause embolism. For this reason, a bung with inlet and outlet holes has been designed, and the inlet and outlet holes on the existing bung with inlet and outlet holes are still covered by a cover that is plugged in or rotated, so the existing bung still has an opening Inconvenient lack of hole cover.

Contents of the invention

The invention provides an integral hemodialysis bucket cover which is convenient to open and has a good pressure resistance effect, and solves the problem of inconvenience in opening the hole cover of the existing integral hemodialysis bucket lid with inlet and outlet holes.

The above technical problems are solved by the following technical solutions: an integral hemodialysis bucket cover, including a cover body, the cover body includes a top wall and a cylindrical side wall, the top wall includes a fixing part and an opening part, the The fixing part is connected with the side wall, the opening part is sealed and connected with the fixing part by the tear line provided on the inner surface of the top wall, and the outer surface of the top wall corresponds to the tear line. The position of the tear line is a convex surface, and the fixing part, the opening part and the tear line are connected together in an integrated structure, and one end of the opening part is provided with a connecting block, and the connecting block is connected with a A pull ring that stands upright relative to the opening as a fulcrum and is in a flat state. When in use, the present invention is covered on the hemodialysis bucket, and when the tube is to be inserted into the hemodialysis bucket, the connecting block is used as a fulcrum to erect the pull ring to the required angle relative to the top wall, and then pull the opening part through the pull ring to close The opening part is separated from the fixed part by tearing the tear line. At this time, an inlet and outlet hole is formed on the top wall corresponding to the opening part, and the tube can be inserted into the hemodialysis bucket through the inlet and outlet hole. Because the opening part constituting the cover of the access hole is connected together with the fixed part, that is, produced together, it is easy to make and has good sealing performance to the access hole. It can be opened by pulling and is designed with a pull ring, so it is easy to open. The tear line is not only not easy to accumulate dust to keep the outer surface of the top wall clean, so that it is not easy to cause pollution when the opening is opened, but also the convex design can improve the pressure resistance of the opening and prevent storage. The probability that the middle opening will be opened due to downward pressure.

Preferably, the tear line is formed by a groove formed by indentation of the inner surface of the top wall. It is possible to reliably tear along the tear line when the opening portion is opened. When opening, the connection strength of the tearing part can be reduced by pressing down the opening part, so that the force required for opening is reduced, and the reduction of the opening force is not easy to cause the connection between the pull ring and the connection block to break during the opening process As a result, it cannot be opened by the pull ring.

Preferably, the groove forming the tear line is a sharp-bottomed groove. It is possible to further increase the effect of reducing the connection strength at the tear by pressing down the opening portion.

Preferably, a prying gap is provided between the pull ring and the top wall. The opening portion can be pressed down by pressing down on the pull ring to reduce the strength of the tear line.

Preferably, the lower end surface of the pull ring is provided with a first cutting edge, and the cutting edge line of the first cutting edge is located directly above the tear line. In the process of pressing down on the opening part by pressing down on the pull ring, the first cutting edge can produce an undercutting action on the tearing line, so that the strength of the tearing line decreases greatly, so that the opening part can be opened more labor-saving.

As a preference, the tearing line is provided with an initial tearing section, the connecting block is an elastic structure, and an air cavity is provided in the connecting block, and the air cavity is provided with an air blower towards the initial tearing section. the air outlet. "Initial tear segment" refers to the part where the tear line is first torn during the process of opening the opening part through the pull ring, and this part is next to the connecting block. Before opening, press the pull ring up and down to squeeze the opening part to reduce the tear strength of the tear line, the air cavity will blow outwards and remove the dust and other dirt from the initial tear section and its surroundings. Blow it away, so as to avoid the dirt falling into the bucket during the opening process and causing pollution. During the tearing process, the tear line may press down on the barrel at the initial tearing section and there will be a large vibration at the moment of being torn. If there is dust on the initial tearing section and its surroundings , The above process will cause dust to enter the barrel.

As a preference, the air outlet is provided with a sealing film, the connecting block is provided with a knife seat that rotates with the pull ring, and the knife seat is provided with a rotation and rotates with the pull ring when the pull ring is erected. The second cutting edge used to puncture the sealing film; during the process of rotating and erecting the pull ring, the moment when the second cutting edge punctures the sealing film is earlier than the moment when the tear line breaks. The sealing film is designed to prevent dust from entering the air cavity during storage. If there is dust in the air cavity, the blown air will contain dust, which will make it difficult to clean the initial tearing section when blowing. Setting the second cutting edge can improve the convenience when opening the sealing film.

As a preference, the knife seat is also provided with a third cutting edge that rotates together with the pull ring to puncture the tear line when it is rotated to erect the pull ring; , the moment when the second cutting edge pierces the sealing film is earlier than the moment when the third cutting edge pierces the tear line. During the opening process, the tearing line can be punctured or stabbed through the third cutting edge, so that the tearing line can be torn by pulling the pull ring with a small force.

Preferably, the air pressure in the air cavity is above 1.5 standard atmospheric pressure. After turning the pull ring to puncture the sealing film, the air cavity can be blown out to clean the initial tearing section without additional extrusion of the connecting block to deform the air cavity. The convenience in use is good.

Preferably, the side wall includes a metal core layer and a rubber layer included outside the metal core layer. It can not only ensure the strength, but also can be sealed and connected with the bottle through a tight fit.

Preferably, the pull ring is fixedly connected to a hinge shaft, the pull ring is hinged to the connecting block through the hinge shaft, and the knife seat is fixed to the hinge shaft. It is possible to improve the reliability when the tool seat is driven to rotate by the pull ring.

The invention has the following advantages: good sealing performance; easy opening; dust is not easy to accumulate at the tear line; the opening part is not easy to separate from the fixed part when squeezed.

Description of drawings

FIG. 1 is a schematic structural view of Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of Embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of Embodiment 3 of the present invention;

Fig. 4 is a partially enlarged schematic diagram of A in Fig. 3;

Fig. 5 is a partial schematic diagram of Embodiment 4 of the present invention.

In the figure: cover body 1, top wall 11, fixing part 111, opening part 112, side wall 12, tear line 13, prying gap 14, part 15 on the outer surface of the top wall corresponding to the tear line, connecting block 2, Air cavity 21 , air outlet 211 , knife seat 22 , second cutting edge 221 and third cutting edge 222 , sealing film 23 , pull ring 3 , first cutting edge 31 , hinge shaft 32 .

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment 1, referring to FIG. 1 , an integral hemodialysis bucket cover, including a cover body 1 . The cover body 1 includes a top wall 11 and a cylindrical side wall 12 . The sidewall 12 includes a metal core layer 121 and a rubber layer 122 included outside the metal core layer. The top wall 11 includes a fixing portion 111 and an opening portion 112 . The fixing portion 111 is connected with the side wall 12 . The thickness of the opening portion 112 is smaller than that of the fixing portion 111 . The opening part 112 is sealed and connected with the fixing part 111 by the tear line 13 . The fixing part 111 , the opening part 112 and the tearing line 13 are connected together in an integral structure. The tear line 13 is disposed on the inner surface of the top wall 11 . The portion 15 of the outer surface of the top wall corresponding to the tear line is convex. The tear line 13 is formed by a groove formed by indentation on the inner surface of the top wall 11 , and the groove forming the tear line 13 is a sharp-bottomed groove. One end of the opening portion 112 is provided with a connection block 2 . The connecting block 2 is connected with the opening part 112 by welding or integral structure. The connecting block 2 is connected with a pull ring 3 in a flat state. , the connection block is connected with a connection block that can be erected relative to the opening part with the connection block as a fulcrum. A prying gap 14 is provided between the pull ring 3 and the top wall 11 . The lower end surface of the pull ring 3 is provided with a first cutting edge 31 . The cutting edge line of the first cutting edge 31 is located directly above the tearing line 13 , that is, when the pull ring 13 is pressed down, the first cutting edge 31 can cut to the tearing line 13 .

During use, cover the hemodialysis bucket by the present invention by fitting the side wall 12 into the mouth of the hemodialysis bucket. When inserting the tube into the hemodialysis bucket, first press the right end of the pull ring 3 away from the connection. One end of the block 2, so that the first cutting edge 31 produces a downward cutting action on the tear line 13 to destroy the strength of the tear line 13, and then use the connecting block 2 as a fulcrum to turn the pull ring 3 counterclockwise until the pull ring is relative to the top wall 11 Stand up to the required angle, and then pull the opening part 112 up by pulling the ring 3, so that the tear line 13 is torn to separate the opening part 112 from the fixed part 111. At this time, the top wall 11 corresponds to the opening part An inlet and outlet hole is formed at the site, and the tube can be inserted into the hemodialysis bucket through the inlet and outlet hole.

Embodiment two, the difference with embodiment one is:

Referring to Fig. 2, the connection block 2 is an elastic structure. An air chamber 21 is arranged inside the connection block 2 . The air cavity 21 is provided with an air outlet 211 for blowing air towards the initial tearing segment of the tearing line 13 .

When the opening part 112 is opened, the connecting block 2 is pressed repeatedly at first, so that the first cutting edge 31 produces an undercut to the tear line 13, and at the same time, the gas in the air cavity 21 is blown out through the gas outlet 211 to initiate the tearing of the tear line 13. Fissures are cleaned.

Embodiment three, the difference with embodiment two is:

Referring to FIG. 3 , the connection block 2 is also connected with a knife seat 22 . The air outlet 211 is provided with a sealing film 23, that is, the air outlet is closed. The gas chamber 21 is filled with inert gas or nitrogen. The air pressure in the air chamber 21 is above 1.5 standard atmospheric pressure.

Referring to FIG. 4 , the knife seat 22 is provided with a second cutting edge 221 and a third cutting edge 222 .

During use, when the pull ring 3 is turned to erect the pull ring 3, the connection block 2 is deformed and rotated, and when the connection block 2 rotates, the knife seat 22 also rotates counterclockwise, and the knife seat 22 drives the second cutting edge 221 and the third cutting edge 222 also rotate together. During the rotation process, the second cutting edge 221 first pierces the sealing film 23 so that the gas in the air cavity 21 is released to clean the initial tearing section of the tearing line 13, and then the third cutting edge 222 punctures or stabs The initial tearing section of the tearing line 13 enters through the pull ring 3 to completely tear the tearing line so as to remove the opening part 112 .

Embodiment four, the difference with embodiment three is:

Referring to FIG. 5 , the pull ring 3 is fixedly connected with a hinge shaft 32 . The pull ring 3 is hinged together with the connecting block 2 through a hinge shaft 32 . The knife seat 22 is fixedly connected to the hinge shaft 32 .

Claims (10)

1. An integral hemodialysis bucket cover, comprising a cover body, said cover body comprising a top wall and a cylindrical side wall, characterized in that said top wall comprises a fixing part and an opening part, and said fixing part is the same as said The side walls are connected together, the opening part is sealed and connected with the fixing part by a tear line arranged on the inner surface of the top wall, and the part of the outer surface of the top wall corresponding to the tear line is The convex surface, the fixing part, the opening part and the tearing line are connected together in an integrated structure, and one end of the opening part is provided with a connecting block, and the connecting block is connected with a The pull ring with the opening part upright and in a flat state. 2 . The integral hemodialysis bucket cover according to claim 1 , characterized in that, the tear line is formed by a groove formed by indentation of the inner surface of the top wall. 3 . 3. The integral hemodialysis bucket cover according to claim 2, characterized in that, the groove forming the tear line is a sharp-bottomed groove. 4. The integral hemodialysis bucket cover according to claim 1, 2 or 3, characterized in that a prying gap is provided between the pull ring and the top wall. 5. The integral hemodialysis bucket cover according to claim 4, characterized in that, the lower end surface of the pull ring is provided with a first cutting edge, and the cutting edge line of the first cutting edge is located at the tear line directly above the . 6. The integral hemodialysis bucket cover according to claim 1, 2 or 3, characterized in that, the tear line is provided with an initial tear segment, the connecting block is an elastic structure, and the connecting block is An air cavity is provided, and the air cavity is provided with an air outlet for blowing air towards the initial tearing segment. 7. The integral hemodialysis bucket cover according to claim 6, characterized in that, the air outlet is provided with a sealing film, and the connecting block is provided with a knife seat that rotates with the pull ring, and the knife seat There is a second cutting edge used to puncture the sealing film by rotating together with the pull ring when it is turned to erect the pull ring; The moment of the sealing film is earlier than the moment of rupture of the tear line. 8. The integral hemodialysis bucket cover according to claim 7, characterized in that, the knife seat is also provided with a tool for rotating and erecting the pull ring to puncture the tear line by rotating together with the pull ring. the third cutting edge; during the process of rotating and erecting the pull ring, the moment when the second cutting edge pierces the sealing film is earlier than the moment when the third cutting edge pierces the tear line. 9. The integral hemodialysis bucket cover according to claim 7, characterized in that the air pressure in the air cavity is above 1.5 standard atmospheres. 10. The integral hemodialysis bucket cover according to claim 1, 2 or 3, wherein the side wall comprises a metal core layer and a rubber layer included outside the metal core layer.