Device for removing residual liquid at pipe connecting position of sterile pipe connecting machine

Abstract

The utility model relates to a device for removing residual liquid at a pipe connecting position of a sterile pipe connecting machine, which comprises a connecting rod, a pressing sheet, an upper pressing tooth and a lower pressing tooth, the upper end of the inner side surface of the pressing sheet is rotatably connected inside one side of the connecting rod, and the outer part of the other side of the connecting rod is rotatably connected to the inner side end of a middle cover close to the inner part of the upper end; the inner side face of the pressing piece is in vertical sliding fit along the inner side end face of the middle cover, a guide column is arranged at the front end of the outer portion of the side, close to the pressing piece, of the connecting rod, upper pressing teeth are designed at the upper end of the rear side of the inner side end face of the front cover, and lower pressing teeth are designed at the lower end of the rear side of the inner side end face of the front cover. The upper pressing teeth and the lower pressing teeth can be matched with the upper faces of the upper pressing guide columns or the lower faces of the lower pressing guide columns respectively. The device has the advantages that the design is ingenious, the structure is reasonable and compact, the front cover is controlled to rise and rotate to drive the upper pressing teeth to press the guide column of the connecting rod, so that the pressing sheet moves downwards along the inner side end face of the middle cover to extrude the guide pipe, residual liquid in the guide pipe is discharged in advance, and the phenomenon that residual liquid exists at the connecting pipe is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of aseptic pipe connection equipment, in particular to a residual liquid removal device at a pipe connection of an aseptic pipe connection machine. Background Art

[0002] The aseptic pipe connection machine is a medical device that connects two PVC pipes in a contaminated environment (i.e. non-sterile environment) and keeps the connectors aseptic. It is indispensable in the fields of blood collection and supply, clinical surgery, biopharmaceuticals, etc.

[0003] When the current aseptic pipe connection machine is connecting the pipe, it is necessary to clamp the liquid-filled pipe with the catheter pressure plate. A certain distance is left between the left and right catheter pressure plates. The welding plate is melted and reconnected in the middle of the left and right catheter pressure plates, such as patent CN201520992824.1. There will be liquid residue in the pipe within this distance. This will cause liquid to exist at the pipe connection after the pipe connection. Although it does not affect the effectiveness and safety of the pipe connection, it will cause the illusion of pipe leakage. The utility model adds a set of devices to drain the residual liquid in the middle of the left and right catheter pressure plates before clamping the pipe, eliminating the phenomenon of residual liquid at the pipe connection. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a residual liquid removal device at the connection point of a sterile connection machine, which has a clever design, a reasonable and compact structure, and eliminates the phenomenon of residual liquid at the connection point.

[0005] The technical solution of this utility model:

[0006] The aseptic take-over machine comprises a residual liquid removal device at the take-over point of the aseptic take-over machine, the aseptic take-over machine comprises a right catheter pressure plate part, the right catheter pressure plate part comprises a base, a middle cover, and a front cover, the rear end of the base is rotatably connected to the rear end of the middle cover, the front end of the middle cover is rotatably connected to the rear end of the front cover, and the lower end of the front cover can be rotatably connected to the base; the inner end surface of the middle cover is designed and installed with a residual liquid removal device at the take-over point of the aseptic take-over machine, and the residual liquid removal device at the take-over point of the aseptic take-over machine comprises a connecting rod, a pressing piece, an upper pressing tooth and a lower pressing tooth, the upper end of the inner side surface of the pressing piece is rotatably connected to the inside of one side of the connecting rod, and the other side of the connecting rod is externally rotatably connected to the inner end of the middle cover near the upper end inner position, the inner side surface of the pressing piece slides up and down along the inner end surface of the middle cover, the connecting rod is provided with a guide column at the outer front end near one side of the pressing column, the upper end of the inner end surface rear position of the front cover is designed with an upper pressing tooth and the lower end of the inner end surface rear position of the front cover is designed with a lower pressing tooth, and the upper pressing tooth and the lower pressing tooth can be respectively matched with the upper side of the upper pressing guide column or the lower side of the lower pressing guide column.

[0007] The inner side of the pressing sheet is designed with a connecting block, which is designed as a rectangular block, a semicircular protrusion is provided at the upper end of the inner side of the rectangular block, and a first circular hole penetrating from front to back is provided in the semicircular protrusion; the connecting rod is designed as a rectangular block, a U-shaped groove is provided on one side of the rectangular block, and second circular holes penetrating from front to back are respectively provided on both sides of the U-shaped groove near the mouth, and a third circular hole penetrating from front to back is designed on the other side of the rectangular block, and a hollow cylinder is respectively designed on the outer side of the second circular hole on both sides of the U-shaped groove, and an eccentric block is also designed on the outer end of the hollow cylinder near the front side, and the eccentric block A connecting guide column is installed on the outside; a rectangular groove is designed on the inner end surface of the middle cover, and a fourth circular hole is designed in the middle of the front and rear side walls of the rectangular groove respectively, a large groove is also designed on the outside of the rectangular groove, and a boss is also designed in the lower middle position of the front and rear sides of the rectangular groove mouth; the semicircular protrusion of the connecting block is rotatably located in the U-shaped groove of the connecting rod, and the first circular hole is rotatably connected to the second circular hole of the connecting rod through a rotating shaft; the other side of the connecting rod extends into the rectangular groove of the middle cover, and the third circular hole is rotatably connected to the fourth circular hole through a rotating shaft.

[0008] The lower end of the pressing sheet is designed with a serrated pressing opening.

[0009] The outer side of the large groove of the middle cover is also designed with a storage groove for accommodating the pressing tablet.

[0010] The hollow cylinder is slidably fitted on the outer side of the boss.

[0011] A transverse block is designed at the lower end of the connecting block inside the pressing sheet.

[0012] The utility model has the advantages of ingenious design and reasonable and compact structure. By controlling the front cover to rise and rotate, the upper pressure teeth press down the guide column of the connecting rod, so that the pressing piece moves downward along the inner end surface of the middle cover to extrude the conduit, so that the residual liquid in the conduit is discharged in advance, and the phenomenon of residual liquid at the connecting pipe is eliminated; then the front cover is controlled to rotate downward, and the front cover clamps the conduit with the middle cover and the base, and at the same time, the lower pressure teeth move upward synchronously, and the lower pressure teeth push up the guide column of the connecting rod, so that the pressing piece moves upward along the inner end surface of the middle cover and is hidden in the designed storage groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a sterile pipe connection machine of the utility model.

[0014] Figure 2 It is a schematic diagram of the installation position of the right guide tube pressing plate portion of the utility model.

[0015] Figure 3 It is a schematic diagram of a residual liquid removal device at a connection point of a sterile connection machine on a right catheter pressing plate portion of the utility model.

[0016] Figure 4It is a schematic diagram of the residual liquid removal device at the connection point of the sterile connection machine on the right catheter pressing plate part of the utility model after omitting the pressing sheet.

[0017] Figure 5 It is a schematic diagram of the residual liquid removal device at the connection point of the sterile connection machine on the right catheter pressing plate part of the utility model after omitting the pressing plate and the connecting rod.

[0018] Figure 6 It is a schematic diagram of the front cover, the pressing sheet and the connecting rod on the right conduit pressing plate part of the utility model.

[0019] Figure 7 It is a schematic diagram of the inner side of the tablet of the utility model.

[0020] Figure 8 The utility model is a schematic diagram of a state in which a residual liquid removal device at a connection point of a sterile connection machine is folded after a middle cover of a right catheter pressing plate portion is cut away.

[0021] Fig. 9 It is a schematic diagram of the state in which the residual liquid removal device at the connection point of the sterile connection machine is unfolded to discharge liquid after the middle cover of the right catheter pressure plate part of the utility model is cut away. DETAILED DESCRIPTION

[0022] See attached Figure 1-9 , a residual liquid removal device at the connection point of the aseptic take-over machine, the aseptic take-over machine includes a right catheter pressing plate part 10, the right catheter pressing plate part 10 includes a base 1, a middle cover 2, and a front cover 3, the rear end of the base 1 is rotatably connected to the rear end of the middle cover 2, the front end of the middle cover 2 is rotatably connected to the rear end of the front cover 3, and the lower end of the front cover can be rotatably connected to the base; the inner end surface of the middle cover 2 is designed to be installed with a residual liquid removal device at the connection point of the aseptic take-over machine, the residual liquid removal device at the connection point of the aseptic take-over machine includes a connecting rod 4, a pressing sheet 5, an upper pressing tooth 6 and a lower pressing tooth 7, the inner side surface of the pressing sheet 5 The end is rotatably connected to the inside of one side of the connecting rod 4, and the other side of the connecting rod 4 is rotatably connected to the inner position of the inner end of the middle cover 2 near the upper end. The inner side surface of the pressing plate 5 slides up and down along the inner end surface of the middle cover 2. A guide column 8 is provided at the external front end of the connecting rod 4 close to the pressing plate 5. An upper pressing tooth 6 is designed at the upper end of the rear side of the inner end surface of the front cover 3, and a lower pressing tooth 7 is designed at the lower end of the rear side of the inner end surface of the front cover 3. The upper pressing tooth 6 and the lower pressing tooth 7 can be respectively pressed on the top of the guide column 8 or on the bottom of the guide column 8 for cooperation.

[0023] The inner side of the pressing sheet 5 is designed with a connecting block 51, which is designed as a rectangular block. A semicircular protrusion 52 is provided at the upper end of the inner side of the rectangular block, and a first circular hole 53 is provided in the semicircular protrusion 52. The connecting rod 4 is designed as a rectangular block, and a U-shaped groove 41 is provided on one side of the rectangular block. The U-shaped groove 41 is provided with a second circular hole 42 that is provided on both sides near the mouth of the rectangular block, and a third circular hole 44 that is provided on the other side of the rectangular block. A hollow cylinder 45 is provided on the outer side of the second circular hole 42 on both sides of the U-shaped groove 41, and an eccentric block 46 is provided on the outer end of the hollow cylinder 45 near the front side. The outer side of the eccentric block 46 Install the connecting guide column 8; a rectangular groove 21 is designed on the inner end surface of the middle cover 2, and a fourth circular hole 23 is designed in the middle of the front and rear side walls of the rectangular groove 21, a large groove 22 is also designed on the outer side of the rectangular groove 21, and a boss 24 is also designed in the lower middle position of the front and rear sides of the mouth of the rectangular groove 21; the semicircular protrusion 52 of the connecting block 51 is rotatably located in the U-shaped groove 41 of the connecting rod 4, and the first circular hole 53 is rotatably connected with the second circular hole 42 of the connecting rod 4 through a rotating shaft; the other side of the connecting rod 4 extends into the rectangular groove 21 of the middle cover 2, and the third circular hole 44 is rotatably connected with the fourth circular hole 23 through a rotating shaft.

[0024] The lower end of the pressing sheet 5 is designed with a serrated pressing opening 55 .

[0025] The outer side of the large groove 22 of the middle cover 2 is also designed with a receiving groove 25 for accommodating the pressing sheet 5 .

[0026] The hollow cylinder 45 is slidably fitted on the outer side of the boss 24 .

[0027] A transverse block 56 is designed at the lower end of the connecting block 51 inside the pressing sheet 5 .

[0028] When the utility model is used, the aseptic pipe connection machine recorded in the prior art is further improved to realize the removal of residual liquid in the catheter before pipe connection. For example, the aseptic pipe connection machine recorded in patent CN201520992824.1, when the bag containing the solution is placed on the bracket, the catheter is pressed into the catheter groove on the base, and when the middle cover is about to be closed with the base, the front end of the front cover rotates upward, and the upper pressing teeth installed at the rear end thereof just press the guide column of the connecting rod, pressing the pressing piece downward, and the serrated pressing opening at the lower end of the pressing piece is first The pressing teeth of the middle cover squeeze the conduit to drain the liquid in the conduit; when the middle cover and the base are closed, the front end of the front cover rotates and presses down, and the front cover controls the long curved hook installed at its lower end to hook to the lower outer side of the rotating wheel installed on the base, and the front cover and the middle cover become parallel. The downward pressing teeth at the rear end of the front cover push the eccentric block under the upper connecting rod to make the pressing piece come onto the stage, and through the linkage of the connecting rod, it enters the storage groove of the middle cover, and finally the teeth under the middle cover and the teeth on the base squeeze the conduit to form a closed state, and then the subsequent pipe connection operation is carried out.

Claims

1. A residual liquid removal device at the aseptic pipe connection machine. The aseptic pipe connection machine includes a right catheter pressing plate portion, which includes a base, a middle cover, and a front cover. The rear end of the base is rotatably connected to the rear end of the middle cover, the front end of the middle cover is rotatably connected to the rear end of the front cover, and the lower end of the front cover is rotatably connected to the base; It is characterized in that The inner end face of the middle cover is designed to be equipped with a residual liquid removal device at the connecting pipe of the sterile connecting machine, and the residual liquid removal device at the connecting pipe of the sterile connecting machine includes a connecting rod, a pressing sheet, an upper pressing tooth and a lower pressing tooth. The upper end of the inner side surface of the pressing sheet is rotatably connected to the inside of one side of the connecting rod, and the other side of the connecting rod is rotatably connected to the inner position of the inner end of the middle cover near the upper end. The inner side surface of the pressing sheet slides up and down along the inner end face of the middle cover, and the connecting rod is provided with a guide column at the external front end near the pressing sheet side. The upper end of the rear side of the inner end face of the front cover is designed with an upper pressing tooth, and the lower end of the rear side of the inner end face of the front cover is designed with a lower pressing tooth. The upper pressing tooth and the lower pressing tooth can be respectively matched with the upper side of the upper pressing guide column or the lower side of the lower pressing guide column.

2. The residual liquid removal device at the connection of the aseptic connection machine according to claim 1, It is characterized in that The inner side of the pressing sheet is designed with a connecting block, which is designed as a rectangular block, a semicircular protrusion is provided at the upper end of the inner side of the rectangular block, and a first circular hole penetrating from front to back is provided in the semicircular protrusion; the connecting rod is designed as a rectangular block, a U-shaped groove is provided on one side of the rectangular block, and second circular holes penetrating from front to back are respectively provided on both sides of the U-shaped groove near the mouth, and a third circular hole penetrating from front to back is designed on the other side of the rectangular block, and a hollow cylinder is respectively designed on the outer side of the second circular hole on both sides of the U-shaped groove, and an eccentric block is also designed on the outer end of the hollow cylinder near the front side, and the eccentric block A connecting guide column is installed on the outside; a rectangular groove is designed on the inner end surface of the middle cover, and a fourth circular hole is designed in the middle of the front and rear side walls of the rectangular groove respectively, a large groove is also designed on the outside of the rectangular groove, and a boss is also designed in the lower middle position of the front and rear sides of the rectangular groove mouth; the semicircular protrusion of the connecting block is rotatably located in the U-shaped groove of the connecting rod, and the first circular hole is rotatably connected to the second circular hole of the connecting rod through a rotating shaft; the other side of the connecting rod extends into the rectangular groove of the middle cover, and the third circular hole is rotatably connected to the fourth circular hole through a rotating shaft.

3. The residual liquid removal device at the connection of the aseptic connection machine according to claim 1, It is characterized in that The lower end of the pressing sheet is designed with a serrated pressing opening.

4. The residual liquid removal device at the connection point of the aseptic connection machine according to claim 1, It is characterized in that The outer side of the large groove of the middle cover is also designed with a storage groove for accommodating the pressing tablet.

5. The residual liquid removal device at the connection point of the aseptic connection machine according to claim 2, It is characterized in that The hollow cylinder is slidably fitted on the outer side of the boss.

6. The residual liquid removal device at the connection point of the aseptic connection machine according to claim 2, It is characterized in that A transverse block is designed at the lower end of the connecting block inside the pressing sheet.

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