CN219141981U

CN219141981U - Plasma bag weighing device

Info

Publication number: CN219141981U
Application number: CN202320224330.3U
Authority: CN
Inventors: 谢菲; 周均凤; 补小菊; 杨垚; 陈茜
Original assignee: Chongqing Tongnan Hualan Biological Apheresis Plasma Co ltd
Current assignee: Chongqing Tongnan Hualan Biological Apheresis Plasma Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-06
Anticipated expiration: 2033-02-15

Abstract

The utility model discloses a plasma bag weighing device, which comprises: weighing arm, suspension arm, pressure sensor and positioning mechanism; the weighing arm includes: the plasma sampling separator comprises a rotating cylinder, a middle cylinder and a mounting arm, wherein one end of the mounting arm is fixed with the rotating cylinder, the middle cylinder is mounted on the mounting arm, the middle cylinder penetrates through the inner wall of the rotating cylinder, an annular gap is formed between the inner wall of the rotating cylinder and the outer wall of the middle cylinder, and the rotating cylinder can be rotatably mounted to extend into the top of a separation box in the plasma sampling separator; the pressure sensor is arranged in the mounting arm and is tightly attached to one end of the suspension arm, the middle part of the suspension arm is hinged, the other end of the suspension arm is suspended from the edge of the separation box and provided with a suspension groove, the suspension arm penetrates through the top edge of the plasma bag, and the top edge of the plasma bag is placed into the suspension groove. The plasma bag weighing device solves the problem of how to ensure that plasma can be smoothly input into a plasma bag and the plasma bag can be weighed in the prior art.

Description

Plasma bag weighing device

Technical Field

The utility model relates to equipment for collecting plasma, in particular to a plasma bag weighing device.

Background

In the plasma collection process, a plasma sampling separator for collecting blood from a human body and then separating the blood into red blood cells and plasma is required.

In the prior art, a plasma sampling separator includes: the red blood cell separation device, the separation box and the plasma output pipeline are arranged at the top of the separation box, the output end of the red blood cell separation device is connected to the plasma output pipeline, red blood cells in blood are separated from plasma, and the separated red blood cells are required to be output into the plasma bag through the plasma output pipeline.

Because the amount of the pumped plasma that each person can bear cannot be too much, but in order to ensure the collection amount, the plasma bag needs to be weighed, and a common weighing device is to put an object on the surface and then weigh the plasma bag, but in the plasma separation process, the plasma is continuously output, so how to ensure that the plasma can be smoothly input into the plasma bag and that the plasma bag can be weighed is a problem to be solved urgently.

Disclosure of Invention

The utility model provides a plasma bag weighing device, which solves the problems of ensuring that plasma can be smoothly input into a plasma bag and the plasma bag can be weighed in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model discloses a plasma bag weighing device, which comprises: weighing arm, suspension arm, pressure sensor and positioning mechanism; the weighing arm includes: the plasma sampling separator comprises a rotating cylinder, a middle cylinder and a mounting arm, wherein one end of the mounting arm is fixed with the rotating cylinder, the middle cylinder is mounted on the mounting arm, the middle cylinder penetrates through the inner wall of the rotating cylinder, an annular gap is formed between the inner wall of the rotating cylinder and the outer wall of the middle cylinder, and the rotating cylinder can be rotatably mounted to extend into the top of a separation box in the plasma sampling separator; the pressure sensor is arranged in the mounting arm and is tightly attached to one end of the suspension arm, the middle part of the suspension arm is hinged, the other end of the suspension arm is suspended from the edge of the separation box and provided with a suspension groove, the suspension arm penetrates through the top edge of the plasma bag, and the top edge of the plasma bag is placed in the suspension groove; the pressure sensor is electrically connected with a data connecting wire, and the data connecting wire penetrates through the annular gap; and a positioning mechanism is arranged at the middle cylinder and is used for being matched with the inner wall of the separation box to limit the rotation of the rotary cylinder.

Preferably, the positioning mechanism includes: the locating piece, connecting block, promote piece and spring, the connecting block passes the intermediate barrel, and the connecting block can not rotate relatively the intermediate barrel, and the connecting block bottom is connected with the locating piece that can stretch out the rotary barrel, and the locating hole has been seted up to the separator incasement wall, and the locating hole supplies the locating piece to stretch into, and the connecting block top is connected with promotes the piece, is connected with the spring between promotion piece and the installation arm, and the spring is used for keeping the locating piece stretch into to the locating hole.

Preferably, the suspension arm comprises: the device comprises a hinge shaft, two suspension columns and a pushing shaft, wherein one end of each suspension column is provided with a suspension groove, the middle part of each suspension column is fixed to the hinge shaft, the hinge shaft is hinged with the mounting arm, the other end of each suspension column is fixed to the pushing shaft, and the pushing shaft is clung to the pressure sensor.

Preferably, the mounting arm comprises: the upper mounting block and the lower mounting block are buckled to form a rotating cavity for the suspension arm to rotate.

Preferably, the inner wall of the upper mounting block is fixed with an upper support, the inner wall of the lower mounting block is fixed with a lower support, and the upper support and the lower support are buckled outside the end part of the hinge shaft.

Preferably, a first mounting ring is fixed to the top of the rotary cylinder and is fixed to the lower mounting block.

Preferably, the top of the middle cylinder is fixed with a second mounting ring, the second mounting ring is mounted on the top of the upper mounting block, and the middle cylinder passes through the upper mounting block, the lower mounting block and the rotary cylinder.

Preferably, the intermediate cylinder has a hollow cuboid structure.

Compared with the prior art, the utility model has the following beneficial effects:

1) Through setting up the suspension arm after, the suspension arm can extend to outside the separator box, realizes suspending in the air with the plasma bag at the separator box, through setting up the suspension groove on the suspension arm for more plasma in the plasma bag, plasma bag roof edge just can firmly limit in the suspension groove, has reduced the possibility of plasma bag slippage. After the suspension, the greater the gravity of the plasma bag is received at one end of the suspension arm, the greater the pressure of the other end of the suspension arm to the pressure sensor is, so that the plasma weighing is realized. In the whole process, the impulse of the plasma bag is not influenced as long as the plasma output pipeline is not tensioned, so that the continuous measurement of the plasma weight in the continuous separation process is realized. Thereby not only ensuring the weighing of the plasma bags, but also ensuring that the plasma bags continuously bear the plasma output by the plasma output pipeline.

2) Through setting up positioning mechanism, realized rotating installation arm and swinging boom to the separation case directly over, realized drawing in the function, the convenience is followed and is shifted whole separation case. Simultaneously, the mounting arm and the rotating arm can be rotated to the position of suspending the edge of the separation box, and the position of suspending the plasma bag is ensured. The positioning mechanism realizes the positioning of the two positions.

3) The gap between the rotary cylinder and the middle cylinder is arranged, so that the influence of the movement of the positioning mechanism on the data connecting line is avoided.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic view of a structure in which a plasma bag weighing apparatus is mounted on a separation tank.

Fig. 2 is a schematic structural view of a plasma bag weighing apparatus.

Fig. 3 is a schematic view of the structure of the upper mounting block in fig. 2 after being removed.

Reference numerals: the weighing arm 1, the annular gap 10, the rotary drum 11, the intermediate drum 12, the second mounting ring 120, the mounting arm 13, the upper mounting block 131, the lower mounting block 132, the upper support 133, the lower support 134, the suspension arm 2, the suspension groove 20, the hinge shaft 21, the suspension column 22, the push shaft 23, the pressure sensor 3, the data connection line 30, the positioning mechanism 4, the positioning block 40, the connection block 41, the push block 42, the spring 43, the separation box 5, and the plasma bag 6.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model more clear and easy to understand, the present utility model is further described below with reference to the accompanying drawings and the detailed description:

as shown in fig. 1 to 3, the present utility model discloses a plasma bag weighing apparatus comprising: a weighing arm 1, a suspension arm 2, a pressure sensor 3 and a positioning mechanism 4; the weighing arm 1 includes: the plasma sampling separator comprises a rotary drum 11, a middle drum 12 and a mounting arm 13, wherein one end of the mounting arm 13 is fixed with the rotary drum 11, the middle drum 12 is mounted on the mounting arm 13, the middle drum 12 penetrates through the inner wall of the rotary drum 11, an annular gap 10 is formed between the inner wall of the rotary drum 11 and the outer wall of the middle drum 12, and the rotary drum 11 can be rotatably mounted to extend into the top surface of the separation box 5 in the plasma sampling separator; the pressure sensor 3 is arranged in the mounting arm 13, the pressure sensor 3 is tightly attached to one end of the suspension arm 2, the middle part of the suspension arm 2 is hinged, the other end of the suspension arm 2 is suspended from the edge of the separation box 5 and provided with a suspension groove 20, the suspension arm 2 passes through the top edge of the plasma bag 6, and the top edge of the plasma bag 6 is placed in the suspension groove 20; the pressure sensor 3 is electrically connected to the data link 30, the data link 30 passing through the annular gap 10; a positioning mechanism 4 is arranged at the middle cylinder 12, and the positioning mechanism 4 is used for being matched with the inner wall of the separation box 5 to limit the rotation of the rotary cylinder 11.

The positioning mechanism 4 includes: the positioning block 40, the connecting block 41, the pushing block 42 and the spring 43, the connecting block 41 passes through the middle barrel 12, the connecting block 41 can not rotate relative to the middle barrel 12, the bottom end of the connecting block 41 is connected with the positioning block 40 which can extend out of the rotary barrel 11, the inner wall of the separation box 5 is provided with a positioning hole, the positioning block 40 extends into the positioning hole, the top end of the connecting block 41 is connected with the pushing block 42, the spring 43 is connected between the pushing block 42 and the mounting arm 13, and the spring 43 is used for keeping the positioning block 40 to extend into the positioning hole. The positioning block 40 can be separated from the positioning hole by pulling the pushing block 42 and the connecting block 41. The rotation angle of the rotary cylinder 11 is 90 degrees, and two positioning holes are formed, so that after the positioning block 40 stretches into the positioning holes, the positioning block can be positioned at a position where the mounting arm 13 does not overhang the separation box 5, namely the mounting arm 13 is folded, and the whole separation box 5 is convenient to transfer; the positioning and mounting arm 13 can also be positioned at the position of suspending the separation box 5, so that the work of suspending the plasma bag 6 can be smoothly carried out.

The suspension arm 2 includes: the pressure sensor comprises a hinge shaft 21, two suspension columns 22 and a pushing shaft 23, wherein one end of each suspension column 22 is provided with a suspension groove 20, the middle part of each suspension column 22 is fixed to the hinge shaft 21, the hinge shaft 21 is hinged with the mounting arm 13, the other end of each suspension column 22 is fixed to the pushing shaft 23, and the pushing shaft 23 is tightly attached to the pressure sensor 3. The suspension column 22 enables the suspension of the plasma bag 6, the hinge shaft 21 forms a hinge fulcrum of the suspension arm 2, and the pushing shaft 23 enables the suspension arm 2 to be in smooth contact with the surface of the pressure sensor 3.

The mounting arm 13 includes: the upper mounting block 131 and the lower mounting block 132 form a rotating cavity after the upper mounting block 131 and the lower mounting block 132 are buckled, and the hanging arm 2 rotates in the rotating cavity. The mounting arms 13 are arranged separately, so that the pressure sensor 3 and the suspension arm 2 can be conveniently mounted.

An upper support 133 is fixed on the inner wall of the upper mounting block 131, a lower support 134 is fixed on the inner wall of the lower mounting block 132, and the upper support 133 and the lower support 134 are buckled outside the end part of the hinge shaft 21. The snap-fit arrangement of the upper support 133 and the lower support 134 achieves a hinged foundation set in the rotation chamber, thereby ensuring that the hinge shaft 21 can be hinged.

A first mounting ring is fixed to the top of the rotary cylinder 11 and is fixed to the lower mounting block 132. It is realized that the rotary drum 11 is mounted at the bottom of the lower mounting block 132.

The second mounting ring 120 is fixed to the top of the intermediate cylinder 12, and the second mounting ring 120 is mounted to the top of the upper mounting block 131, and the intermediate cylinder 12 passes through the upper mounting block 131, the lower mounting block 132, and the rotary cylinder 11. The second mounting ring 120 enables hanging the intermediate barrel 12 on top of the upper mounting block 131, while also enabling positioning mounting of the intermediate barrel 12.

The intermediate tube 12 has a hollow rectangular parallelepiped structure. Thereby ensuring that the intermediate barrel 12 cannot rotate after passing through the upper and

lower mounting blocks

131, 132. A rectangular hole is formed in the intermediate tube 12, and the rectangular hole is provided for the connection block 41 to move, thereby preventing the connection block 41 from rotating relative to the entire mounting arm 13.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. A plasma bag weighing apparatus, comprising: a weighing arm (1), a suspension arm (2), a pressure sensor (3) and a positioning mechanism (4);

the weighing arm (1) comprises: the plasma sampling separator comprises a rotary cylinder (11), an intermediate cylinder (12) and a mounting arm (13), wherein one end of the mounting arm (13) is fixed with the rotary cylinder (11), the intermediate cylinder (12) is mounted on the mounting arm (13), the intermediate cylinder (12) penetrates through the inner wall of the rotary cylinder (11), an annular gap (10) is formed between the inner wall of the rotary cylinder (11) and the outer wall of the intermediate cylinder (12), and the rotary cylinder (11) can be rotatably mounted to extend into the top surface of a separation box (5) in the plasma sampling separator;

the pressure sensor (3) is arranged in the mounting arm (13), the pressure sensor (3) is tightly attached to one end of the suspension arm (2), the middle part of the suspension arm (2) is hinged, the other end of the suspension arm (2) is suspended from the edge of the separation box (5) and provided with a suspension groove (20), the suspension arm (2) penetrates through the top edge of the plasma bag (6), and the top edge of the plasma bag (6) is placed into the suspension groove (20);

the pressure sensor (3) is electrically connected with the data connecting wire (30), and the data connecting wire (30) passes through the annular gap (10);

a positioning mechanism (4) is arranged at the middle cylinder (12), and the positioning mechanism (4) is used for being matched with the inner wall of the separation box (5) to limit the rotation of the rotary cylinder (11).

2. A plasma bag weighing apparatus according to claim 1, wherein the positioning mechanism (4) comprises: locating piece (40), connecting block (41), promote piece (42) and spring (43), connecting block (41) pass intermediate section of thick bamboo (12), connecting block (41) can not rotate relative intermediate section of thick bamboo (12), connecting block (41) bottom is connected with locating piece (40) that can stretch out rotary section of thick bamboo (11), the locating hole has been seted up to separator tank (5) inner wall, locating hole confession locating piece (40) stretch into, connecting block (41) top is connected with promotes piece (42), be connected with spring (43) between promote piece (42) and installation arm (13), spring (43) are used for keeping locating piece (40) stretch into in the locating hole.

3. A plasma bag weighing device according to claim 2, characterized in that the suspension arm (2) comprises: the device comprises a hinge shaft (21), two suspension columns (22) and a pushing shaft (23), wherein the suspension columns (22) are arranged, suspension grooves (20) are formed in one ends of the suspension columns (22), the middle parts of the suspension columns (22) are fixed to the hinge shaft (21), the hinge shaft (21) is hinged with the mounting arm (13), the other ends of the suspension columns (22) are fixed to the pushing shaft (23), and the pushing shaft (23) is tightly attached to the pressure sensor (3).

4. A plasma bag weighing apparatus according to claim 3, wherein the mounting arm (13) comprises: the upper mounting block (131) and the lower mounting block (132) are buckled to form a rotating cavity, and the rotating cavity is used for rotating the suspension arm (2).

5. The plasma bag weighing device according to claim 4, wherein an upper support (133) is fixed on the inner wall of the upper mounting block (131), a lower support (134) is fixed on the inner wall of the lower mounting block (132), and the upper support (133) and the lower support (134) are buckled outside the end part of the hinge shaft (21).

6. A plasma bag weighing apparatus according to claim 5, wherein a first mounting ring is fixed to the top of the rotating drum (11), the first mounting ring being fixed to the lower mounting block (132).

7. A plasma bag weighing apparatus according to claim 5, wherein a second mounting ring (120) is fixed to the top of the intermediate tube (12), the second mounting ring (120) being mounted on top of the upper mounting block (131), the intermediate tube (12) passing through the upper mounting block (131), the lower mounting block (132) and the rotating tube (11).

8. A plasma bag weighing apparatus according to claim 7, characterized in that the intermediate drum (12) is of hollow cuboid construction.