Fixing device for perfusion device

Abstract

The utility model discloses a perfusion device fixing device which comprises a left clamping head and a right clamping head, a left clamping arm is arranged on the side face of the left clamping head, a right clamping arm is arranged on the side face of the right clamping head, the perfusion device fixing device further comprises a rotating assembly controlling the right clamping head to rotate, the rotating assembly comprises two end face clamping blocks which are clamped oppositely, and the two end face clamping blocks are connected with the left clamping arm and the right clamping arm respectively. A telescopic rod is arranged in the middle of the clamping block on the end face of the right clamping arm, a spring is arranged on the telescopic rod, a stepped through hole is formed in the middle of the left clamping arm, and the telescopic rod and the spring are arranged in the through hole. According to the device, through cooperative work of the rotating assembly, the perfusion device can be rotated according to needs, after the perfusion device is rotated by a proper angle, the right clamping head is loosened, the right clamping head drives the telescopic rod to move through the spring, and therefore the right clamping head is pulled through the counter-acting force of the spring, the right clamping head cannot freely rotate on the rotating assembly, and overturning of the perfusion device is rapidly completed.

Description

Technical Field

[0001] This application relates to the technical field of hemodialysis devices, and particularly to a hemoperfusion cartridge fixing device. Background Art

[0002] When treating patients with acute and chronic drug poisoning, uremia, etc., a hemoperfusion cartridge and a dialyzer are required. During hemodialysis, the tube on the dialyzer needs to be connected to the hemoperfusion cartridge, and the tube of the hemoperfusion cartridge is connected to the dialyzer, and the hemoperfusion cartridge is flipped. To facilitate the above operations, the dialyzer and the hemoperfusion cartridge are usually arranged close to each other.

[0003] The currently adopted fixing method is to fix the dialyzer, and then use a rubber tube to form an 8 shape to sleeve the hemoperfusion cartridge beside the dialyzer. However, in this way, the rubber tube is prone to rebound, causing the hemoperfusion cartridge to tilt, and the hemoperfusion cartridge is heavier than the dialyzer, resulting in the hemoperfusion cartridge being lower than the dialyzer. In the prior art, a fixture for clamping a hemodialysis dialyzer and a hemoperfusion cartridge (application number: 202321544468.8) is disclosed. The fixture is provided with two left and right chucks that respectively clamp the dialyzer and the hemoperfusion cartridge. However, after replacing the tube connecting the dialyzer and the hemoperfusion cartridge, the hemoperfusion cartridge needs to be removed to flip it, and it may not be possible to flip the hemoperfusion cartridge quickly and efficiently. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a hemoperfusion cartridge fixing device that can quickly flip the hemoperfusion cartridge.

[0005] To solve the above technical problem, this application adopts the following technical solutions:

[0006] The hemoperfusion cartridge fixing device includes a left chuck and a right chuck. The left side of the left chuck is provided with a left clamping arm, and the right side of the right chuck is provided with a right clamping arm. It also includes a rotating assembly for controlling the rotation of the right chuck. The rotating assembly includes two end face clamping blocks that are engaged with each other. The two end face clamping blocks are respectively connected to the left clamping arm and the right clamping arm. The middle of the end face clamping block of the right clamping arm is provided with a telescopic rod, and a spring is arranged on the telescopic rod. A stepped through hole is formed in the middle of the left clamping arm, and the telescopic rod and the spring are arranged in the through hole. When the end face clamping block on the right clamping arm is rotated, during the rotation process, it will hit the end face clamping block of the left clamping arm, so that it moves to the right by itself, driving the telescopic rod to move, and the telescopic rod drives the spring to compress. When the right chuck is flipped 180° and the two end face clamping blocks are re-matched, the end face clamping block of the right clamping arm and the telescopic rod move to the left again, and the spring resets, pulling the end face clamping block of the right clamping arm to restrict its loosening, realizing a quick flip.

[0007] According to the further expansion of the above solution, the end face clamping block is an end face ratchet wheel.

[0008] To prevent the spring from disengaging from the telescopic rod, based on the above solution, a flange for restricting the spring from disengaging is provided at one end of the telescopic rod facing the left chuck.

[0009] Compared with the prior art, the present application at least achieves the following beneficial effects: Through the cooperative work of the rotating assembly, the perfusion device can be rotated as needed. After rotating to an appropriate angle, release the right chuck. The right chuck drives the movement of the telescopic rod through the spring, and the right chuck is pulled by the reaction force of the spring, so that the right chuck will not rotate randomly from the rotating assembly, and the flipping of the perfusion device can be quickly completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Now, one or more embodiments of the present application will be described only by way of example with reference to the accompanying drawings, in which:

[0011] Figure 1 is a three-dimensional display view of the perfusion device fixing device of one embodiment of the present application;

[0012] Figure 2 is a three-dimensional display view of the perfusion device fixing device of the present application in a use state;

[0013] Figure 3 is a front view sectional view of the perfusion device fixing device of the present application.

[0014] The reference numerals in the figure are: 1, left chuck; 1-1, first clamping plate; 1-2, second clamping plate; 1-2-1, flanging; 2, left clamping arm; 3, right chuck; 4, right clamping arm; 5, end face clamping block; 6, fixing buckle; 6-1, bending; 7, rubber cushion block; 8, dialyzer; 9, perfusion device; 10, telescopic rod; 11, spring; 12, flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will describe the present application in detail with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in various different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0016] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present application.

[0017] In view of the defect in the prior art that the perfusion device cannot be quickly flipped. After careful analysis by the inventor, it is found that the main reason for the above problem is that the fixture for fixing the dialyzer and the perfusion device in the prior art is an integral structure. After the perfusion device is installed on the fixture, after a certain period of time, the tubes of the dialyzer and the perfusion device need to be replaced, and then the perfusion device is flipped 180° for operation. The integral fixture cannot achieve flipping. If the perfusion device needs to be flipped, the fixture needs to be fixed first to prevent the fixture from disengaging from the dialyzer when the perfusion device is taken out, and then consider pulling the perfusion device out of the fixture. There are many factors to consider and the perfusion device cannot be quickly flipped. Based on the above analysis, the inventor has improved the structure of the fixture for fixing the perfusion device.

[0018] As Figure 1 and Figure 3 shown, the fixing device for the perfusion device 9 of the present application includes a left chuck 1 and a right chuck 3 made of plastic or metal, which are circular and provided with openings. The left chuck 1 includes two arc-shaped first clamping plates 1-1 and second clamping plates 1-2; a strip-shaped left clamping arm 2 is connected to the side of the left chuck 1, and a right clamping arm 4 is connected to the side of the right chuck 3. The device further includes a rotating assembly for controlling the rotation of the right chuck 3. The rotating assembly includes two end face clamping blocks 5 that are engaged with each other. The two end face clamping blocks 5 are respectively connected to the left clamping arm 2 and the right clamping arm 4. A horizontally arranged telescopic rod 10 is provided in the middle of the end face clamping block 5 of the right clamping arm 4. A spring 11 is sleeved on the telescopic rod 10. A stepped through hole is opened in the middle of the left clamping arm 2. The telescopic rod 10 and the spring 11 are arranged in the through hole. As Figure 2 shown, when the end face clamping block 5 on the right clamping arm 4 is rotated, during the rotation process, the end face clamping block 5 on the right clamping arm 4 will abut against the end face clamping block 5 on the left clamping arm 2, so that it moves to the right by itself, driving the telescopic rod 10 to move, and the telescopic rod 10 drives the spring 11 to be compressed. When the right chuck 3 is flipped 180° and the two end face clamping blocks 5 are re-mated, the end face clamping block 5 of the right clamping arm 4 and the telescopic rod 10 move to the left again. The end face clamping block 5 of the right clamping arm 4 is clamped with the end face clamping block 5 of the left clamping arm 2, and the spring 11 is reset to pull the end face clamping block 5 of the right clamping arm 4 to restrict its loosening, realizing quick flipping.

[0019] In order to prevent the right chuck 3 from flipping by itself during use, therefore, the end face clamping block 5 is preferably an end face ratchet with inclined teeth. When the two end face ratchets are completely engaged with each other, under the pulling force of the spring 11, the end face ratchet will not rotate. If the end face ratchet on the right clamping arm 4 of the right chuck 3 rotates, refer to Figure 2The end ratchet of the right clamp arm 4 will be fixed to the end ratchet of the left clamp arm 2 of the dialyzer 8 and lifted. When the first tooth of the end ratchet of the right clamp arm 4 is engaged with the second tooth of the end ratchet of the left clamp arm 2, it indicates that the right clamp 3 has rotated a certain angle. By continuously rotating the right clamp 3, it can be rotated to a larger angle until the right clamp 3 is flipped to 180°.

[0020] In order to prevent the spring 11 from escaping from the telescopic rod 10 , a flange 12 for limiting the spring 11 from escaping is provided at one end of the telescopic rod 10 facing the left clamp 1 . When the telescopic rod 10 moves to the right, the spring 11 is compressed by the flange 12 .

[0021] During the use of the existing clamp, another problem is found, that is, the perfusion device 9 is generally larger and heavier than the dialyzer 8. Therefore, the clamp will be tilted by the perfusion device 9, thereby causing the perfusion device 9 to tilt. After a long time, it may fall out of the dialyzer 8. In order to solve this problem, a fixing buckle 6 is hinged on the left clamp 1, and the fixing buckle 6 is hingedly connected to the first clamp 1-1. The end of the fixing buckle 6 is provided with a bend 6-1, and the end of the second clamp 1-2 is provided with a flange 1-2-1. When the fixing buckle 6 is not used, Figure 1 As shown, when the fixing buckle 6 is used, Figure 2 As shown, the fixing buckle 6 is buckled on the flange 1-2-1 of the second clamping plate 1-2 through the bend 6-1 at the end, and the fixing buckle 6 can be disengaged from the flange 1-2-1 of the second clamping plate 1-2 by bending the bend 6-1. The structure of the fixing buckle 6 can make the first clamping plate 1-1 and the second clamping plate 1-2 more tightly, increase the friction force of contact with the dialyzer 8, and after the fixing buckle 6 touches the dialyzer 8, it is restricted by the fixing buckle 6 and the device will not tilt excessively.

[0022] In order to further improve the stability of the device clamped on the dialyzer 8, the inner wall of the fixing buckle 6 is provided with a rubber pad 7. The rubber pad 7 is in contact with the dialyzer 8, so that the device is limited by the rubber pad 7 to ensure that the device does not tilt.

[0023] In addition, since the perfusion device 9 needs to exchange the tube with the dialyzer 8 at a corresponding time (such as two hours after hemodialysis), and turn the perfusion device 9 over, when the medical staff has filled the perfusion device 9, it is not yet time to perform the above work, so the medical staff may deal with other things, and may forget to turn over the perfusion device 9 or turn over the perfusion device 9 later. In order to avoid the above problems, an existing product with a reminder function, such as a timer, can be hung at the front end of the device. The timer is preferably hung on the front end surface of the left clamp 1, so that it will not interfere with the rotation of the right clamp 3. When the time is reached, the timer reminds the medical staff to replace the tubes of the perfusion device 9 and the dialyzer 8 and turn over the perfusion device 8 through a buzzer.

[0024] When using this perfusion device 9 fixing device, first clamp the left clamp head 1 on the side wall of the dialyzer 8, fasten the fixing buckle 6, then install the perfusion device 9 on the right clamp head 3. After 2 hours of hemodialysis work, replace the tubes at the tops of the dialyzer 8 and the perfusion device 9, and then pinch and rotate the right clamp head 3 in the arrow direction shown in Figure 2 , drive the right clamp arm 4 and the end face clamping block 5 on the right clamp arm 4 to rotate. When it is flipped 180°, release the right clamp head 3, and the two end face clamping blocks 5 are clamped with each other, and the telescopic rod 10 is pulled by the elastic force of the spring 11, so that the end face clamping block 5 of the right clamp arm 4 is stably engaged with the end face clamping block 5 of the left clamp arm 2.

[0025] It should be understood that all of the above embodiments are exemplary rather than restrictive. Under the concept of this application, those skilled in the art make various modifications or deformations to the specific embodiments described above, and they should all be within the protection scope of this application.

Claims

1. A perfusion device fixing device, comprising a left clamp and a right clamp, wherein a left clamp arm is provided on the side of the left clamp, and a right clamp arm is provided on the side of the right clamp, wherein: It also includes a rotating assembly for controlling the rotation of the right clamp, the rotating assembly includes two end face clamping blocks that are clamped toward each other, the two end face clamping blocks are respectively connected to the left clamping arm and the right clamping arm, a telescopic rod is provided in the middle of the end face clamping block of the right clamping arm, a spring is provided on the telescopic rod, a stepped through hole is opened in the middle of the left clamping arm, the telescopic rod and the spring are arranged in the through hole.

2. The device according to claim 1, characterized in that: The end face clamping block is an end face ratchet.

3. The device according to claim 1, characterized in that: The end of the telescopic rod facing the left clamp is provided with a flange for limiting the spring from falling out.

4. The device according to claim 1, characterized in that: The left clamping head comprises two arc-shaped first clamping plates and a second clamping plate.

5. The device according to claim 4, characterized in that: A fixing buckle is hinged on the left clamp.

6. The device according to claim 4, characterized in that: The fixing buckle is hingedly connected to the first clamping plate, the end of the fixing buckle is provided with a bend, the end of the second clamping plate is provided with a flange, and the fixing buckle is buckled on the flange of the second clamping plate through the bend at the end.

7. The device according to claim 6, characterized in that: The inner wall of the fixing buckle is provided with a rubber pad.

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