A split type perfusion device

Abstract

The utility model discloses a kind of split type perfusion devices, it is related to medical equipment technical field, including perfusion pipe, the lateral surface of perfusion pipe is provided with closure device, the inside of closure device is provided with connecting device.The utility model is through the cooperation of closure device, double-end screw pipe, fixed plate, through hole one, support cylinder, reset spring one, closure block, rubber pad, by being loaded into perfusion pipe with adsorbent for perfusion, two double-end screw pipes are connected with perfusion pipe after filling is completed, fixed plate is closed inside double-end screw pipe by reset spring one connection closure block, fixed plate connects support cylinder and supports reset spring one, avoid reset spring one bending deformation to influence the sealing effect of closure block to double-end screw pipe, rubber pad can improve the sealing effect of closure block to double-end screw pipe, the two ends of perfusion pipe are closed by the threaded connection of two double-end screw pipes and perfusion pipe, avoid outside environment to cause pollution to adsorbent in perfusion pipe.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a split-type perfusion device. Background Technology

[0002] Hemoperfusion is a rapidly emerging blood purification technique in clinical practice in recent years, with its treatment scope now encompassing kidney disease, acute poisoning, liver disease, critical illness, skin diseases, and immune disorders, among others. Hemoperfusion involves drawing the patient's blood from the body into an extracorporeal circulation system, where an adsorbent in the hemoperfusion device adsorbs toxins, drugs, and metabolic products, thereby achieving the goal of removing these substances.

[0003] Patent publication number CN219941409U discloses a split-type irrigation device, which includes a main body and a filter screen; the main body has a cavity inside, one end of the main body has a liquid inlet communicating with the cavity, and the other end has a liquid outlet communicating with the cavity; both the liquid inlet and the liquid outlet are provided with a filter screen at the connection between them and the cavity, and the filter screen is threadedly connected to the main body.

[0004] To address the issue that most irrigation devices on the market tend to loosen at the end cap during use, leading to a loose connection between the filter and the sealing ring, resulting in the leakage of adsorbent and affecting the effectiveness of the irrigation device, the existing technology uses a threaded connection to install the filter on the main body. This threaded connection also provides a sealing effect, eliminating the need for a sealing ring and improving the sealing performance. However, this still results in the adsorbent in the irrigation device being exposed to the air when not in use, leading to contamination of the adsorbent by impurities in the air. Utility Model Content

[0005] The purpose of this invention is to provide a split-type irrigation device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A split-type irrigation device includes an irrigation tube, a sealing device provided on the side of the irrigation tube, and a connecting device provided inside the sealing device.

[0008] The sealing device includes a double-threaded tube, which is threadedly connected to the irrigation tube. There are two double-threaded tubes, which are symmetrically distributed on both sides of the irrigation tube. A fixing plate is fixedly connected to the inside of one end of the double-threaded tube. A through hole is opened on the top surface of the fixing plate. A support cylinder is fixedly connected to the top surface of the fixing plate. A return spring is fixedly connected to the top surface of the fixing plate. The return spring is sleeved on the side of the support cylinder. A sealing block is fixedly connected to one end of the return spring. A rubber pad is fixedly connected to the side of the sealing block.

[0009] A further improvement of the present invention is that: a sliding sleeve groove is provided on the other side of the double-ended threaded tube, a second return spring is fixedly connected inside the sliding sleeve groove, a sliding sleeve is slidably connected inside the sliding sleeve groove, and one end of the second return spring is fixedly connected to the sliding sleeve.

[0010] A further improvement of this utility model is that: a ball groove is provided inside the other end of the double-ended threaded tube, and the number of the ball grooves is four and they are evenly distributed inside the side of the double-ended threaded tube. The ball grooves are interconnected with the inside of the sliding sleeve groove.

[0011] A further improvement of the present invention is that: a limiting bead is movably connected inside the ball groove, and the limiting bead is movably connected inside the sliding sleeve groove.

[0012] A further improvement of the present invention is that the connecting device includes a threaded tube, the number of which is two, the threaded tube is threadedly connected to the double-ended threaded tube, a through hole is provided on the bottom surface of the threaded tube, a push block is fixedly connected to the bottom surface of the threaded tube, and a sealing gasket is fixedly connected to the bottom surface of the threaded tube.

[0013] A further improvement of this utility model is that: a second ball groove is provided on one side of the threaded tube, and the number of the second ball grooves is four and they cooperate with the limiting bead.

[0014] A further improvement of this utility model is that: a connecting hole is provided on the top surface of the threaded tube, and a connecting tube is fixedly connected to the top surface of the threaded tube.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a split-type irrigation device, which adopts a combination of a sealing device, double-threaded tubes, a fixing plate, a through hole, a support cylinder, a return spring, a sealing block, and a rubber gasket. Irrigation adsorbent is loaded into the irrigation tube. After loading, the two double-threaded tubes are connected to the irrigation tube. The fixing plate, through the return spring, connects to the sealing block to seal the inside of the double-threaded tubes. The fixing plate connects to the support cylinder to support the return spring, preventing bending deformation of the return spring from affecting the sealing effect of the sealing block on the double-threaded tubes. The rubber gasket improves the sealing effect of the sealing block on the double-threaded tubes. The two double-threaded tubes are threadedly connected to the irrigation tube to seal both ends of the irrigation tube, preventing external environmental contamination of the adsorbent in the irrigation tube and improving the adaptability of the device.

[0017] 2. This utility model provides a split-type perfusion device, which uses a connecting device, a threaded tube, two through holes, a push block, a sealing gasket, two ball grooves, a connecting hole, and a connecting pipe. By rotating the threaded tube, the threaded tube is connected to the double-ended threaded tube. When the threaded tube rotates, it drives the push block and the sealing gasket to move downward. When the push block moves downward, it pushes the sealing block to move downward. The downward movement of the sealing gasket and its contact with the double-ended threaded tube increases the sealing performance of the connection between the threaded tube and the double-ended threaded tube. The downward movement of the sealing block removes the seal on the double-ended threaded tube, thereby allowing the threaded tube and the double-ended threaded tube to communicate internally. The two connecting pipes are connected to the output and input pipes of the perfusion machine, respectively. Blood enters the threaded tube from the connecting pipe and enters the double-ended threaded tube through the two through holes. Blood in the double-ended threaded tube can enter the perfusion tube through the one through hole. The adsorbent in the perfusion tube filters the blood, and the blood then enters another double-ended threaded tube and the threaded tube, and is discharged through the connecting pipe into the input pipe of the perfusion machine, improving the adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the irrigation tube structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the sealing device of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting device structure of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the connecting device of this utility model.

[0023] In the diagram: 1. Irrigation tube; 2. Sealing device; 3. Connecting device; 201. Double-ended threaded tube; 202. Fixing plate; 203. Through hole one; 204. Support cylinder; 205. Return spring one; 206. Sealing block; 207. Rubber pad; 208. Sliding sleeve groove; 209. Return spring two; 210. Sliding sleeve; 211. Ball groove one; 212. Limiting bead; 301. Threaded tube; 302. Through hole two; 303. Push block; 304. Sealing gasket; 305. Ball groove two; 306. Connecting hole; 307. Connecting tube. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figure 1-5 As shown, this utility model provides a split-type irrigation device, including an irrigation tube 1. A sealing device 2 is provided on the side of the irrigation tube 1. A connecting device 3 is provided inside the sealing device 2. The sealing device 2 includes a double-threaded tube 201, which is threadedly connected to the irrigation tube 1. There are two double-threaded tubes 201, which are symmetrically distributed on both ends of the irrigation tube 1. A fixing plate 202 is fixedly connected to the inside of one end of the double-threaded tube 201. A through hole 203 is opened on the top surface of the fixing plate 202. A support cylinder 204 is fixedly connected to the top surface of the fixing plate 202. A return spring 205 is fixedly connected to the top surface of the fixing plate 202. The return spring 205 is sleeved on the side of the support cylinder 204. A sealing block 206 is fixedly connected to one end of the return spring 205. A rubber pad 207 is fixedly connected to the side of the sealing block 206.

[0027] In this embodiment, the adsorbent for irrigation is loaded into the irrigation tube 1. After loading, two double-threaded tubes 201 are connected to the irrigation tube 1. The fixing plate 202 is connected to the sealing block 206 through the return spring 205 to seal the inside of the double-threaded tube 201. The fixing plate 202 is connected to the support cylinder 204 to support the return spring 205, so as to avoid the bending deformation of the return spring 205 from affecting the sealing effect of the sealing block 206 on the double-threaded tube 201. The rubber gasket 207 can improve the sealing effect of the sealing block 206 on the double-threaded tube 201. The two double-threaded tubes 201 are threadedly connected to the irrigation tube 1 to seal both ends of the irrigation tube 1, so as to prevent the external environment from contaminating the adsorbent in the irrigation tube 1.

[0028] Example 2

[0029] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a sliding sleeve groove 208 is provided on the other side of the double-ended threaded tube 201. A second return spring 209 is fixedly connected inside the sliding sleeve groove 208, and a sliding sleeve 210 is slidably connected inside the sliding sleeve groove 208. One end of the second return spring 209 is fixedly connected to the sliding sleeve 210. A first ball groove 211 is provided inside the other end of the double-ended threaded tube 201. There are four first ball grooves 211, which are evenly distributed inside the side of the double-ended threaded tube 201. The first ball groove 211 communicates with the sliding sleeve groove 208. A limiting bead 212 is movably connected inside the first ball groove 211, and the limiting bead 212 is movably connected inside the sliding sleeve groove 208.

[0030] In this embodiment, when the threaded tube 301 is connected to the double-ended threaded tube 201, the sliding sleeve 210 is pulled to slide in the sliding sleeve groove 208. When the sliding sleeve groove 208 slides, it causes the second return spring 209 to contract. When the sliding sleeve 210 slides to the bottom of the sliding sleeve groove 208, the limiting bead 212 enters the sliding sleeve groove 208. After the threaded tube 301 is connected to the double-ended threaded tube 201, the sliding sleeve 210 is released. The second return spring 209 relaxes and causes the sliding sleeve 210 to rise. When the sliding sleeve 210 rises, it pushes the limiting bead 212 out of the sliding sleeve groove 208. The limiting bead 212 is connected to the second ball groove 305 to fix the threaded tube 301.

[0031] Example 3

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the connecting device 3 includes a threaded tube 301, the number of which is two, the threaded tube 301 is threadedly connected to the double-ended threaded tube 201, the bottom surface of the threaded tube 301 is provided with a through hole 302, the bottom surface of the threaded tube 301 is fixedly connected with a push block 303, the bottom surface of the threaded tube 301 is fixedly connected with a sealing gasket 304, one end of the threaded tube 301 is provided with a ball groove 305, the number of which is four and cooperates with the limiting bead 212, the top surface of the threaded tube 301 is provided with a connecting hole 306, and the top surface of the threaded tube 301 is fixedly connected with a connecting tube 307.

[0033] In this embodiment, the threaded tube 301 is connected to the double-ended threaded tube 201 by rotating the threaded tube 301. When the threaded tube 301 rotates, it drives the push block 303 and the sealing gasket 304 to move downward. When the push block 303 moves downward, it pushes the sealing block 206 to move downward. The downward movement of the sealing gasket 304 and its contact with the double-ended threaded tube 201 can increase the sealing performance of the connection between the threaded tube 301 and the double-ended threaded tube 201. The downward movement of the sealing block 206 cancels the seal on the double-ended threaded tube 201, thereby allowing the threaded tube 301 and the double-ended threaded tube 201 to connect. The double-ended threaded tube 201 is internally connected. Two connecting tubes 307 are connected to the output and input tubes of the perfusion machine, respectively. Blood enters the threaded tube 301 from the connecting tube 307 and enters the double-ended threaded tube 201 through the second through hole 302. The blood in the double-ended threaded tube 201 can enter the perfusion tube 1 through the first through hole 203. After the adsorbent in the perfusion tube 1 filters the blood, the blood enters another double-ended threaded tube 201 and the threaded tube 301 and is discharged through the connecting tube 307 into the input tube of the perfusion machine.

[0034] The working principle of this split-type irrigation device will be explained in detail below.

[0035] like Figure 1-5As shown, the adsorbent for irrigation is loaded into the irrigation tube 1. After loading, two double-threaded tubes 201 are connected to the irrigation tube 1. The fixing plate 202, through the return spring 205, connects to the sealing block 206 to seal the inside of the double-threaded tube 201. The fixing plate 202 connects to the support cylinder 204 to support the return spring 205, preventing the return spring 205 from bending and deforming, which would affect the sealing effect of the sealing block 206 on the double-threaded tube 201. The rubber gasket 207 can improve the sealing effect of the sealing block 206 on the double-threaded tube 201. The two double-threaded tubes 201 are threadedly connected to the irrigation tube 1 to seal both ends of the irrigation tube 1, preventing the external environment from contaminating the adsorbent in the irrigation tube 1. Pulling the sliding sleeve 210 into the sliding sleeve groove 208 causes the second return spring 209 to retract as the sliding sleeve groove 208 slides. When the sliding sleeve 210 slides below the sliding sleeve groove 208, the limiting bead 212 enters the sliding sleeve groove 208. Rotating the threaded tube 301 connects the threaded tube 301 to the double-ended threaded tube 201. As the threaded tube 301 rotates, it causes the push block 303 and the sealing gasket 304 to move downwards. After the threaded tube 301 is connected to the double-ended threaded tube 201, the sliding sleeve 210 is released. The second return spring 209 relaxes, causing the sliding sleeve 210 to rise. When the sliding sleeve 210 rises, it pushes the limiting bead 212 out of the sliding sleeve groove 208. The limiting bead 212 connects to the second ball groove 305 to fix the threaded tube 301. The sealing gasket 304... The fit between the threaded tube 301 and the double-ended threaded tube 201 increases the sealing performance of the connection. The sealing block 206 moves downward to remove the seal on the double-ended threaded tube 201, thereby allowing the threaded tube 301 and the double-ended threaded tube 201 to communicate internally. The two connecting tubes 307 are connected to the output and input tubes of the irrigation machine, respectively. Blood enters the threaded tube 301 from the connecting tube 307 and enters the double-ended threaded tube 201 through the second through hole 302. The blood in the double-ended threaded tube 201 can enter the irrigation tube 1 through the first through hole 203. After the adsorbent in the irrigation tube 1 filters the blood, the blood enters another double-ended threaded tube 201 and the threaded tube 301 and is discharged through the connecting tube 307 into the input tube of the irrigation machine.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A split-type irrigation device, comprising an irrigation tube (1), characterized in that: The side of the irrigation tube (1) is provided with a sealing device (2), and the inside of the sealing device (2) is provided with a connecting device (3). The sealing device (2) includes a double-ended threaded tube (201), which is threadedly connected to the irrigation tube (1). There are two double-ended threaded tubes (201) and they are symmetrically distributed on both sides of the irrigation tube (1). A fixing plate (202) is fixedly connected to one end of the double-ended threaded tube (201). A through hole (203) is opened on the top surface of the fixing plate (202). A support cylinder (204) is fixedly connected to the top surface of the fixing plate (202). A return spring (205) is fixedly connected to the top surface of the fixing plate (202). The return spring (205) is sleeved on the side of the support cylinder (204). A sealing block (206) is fixedly connected to one end of the return spring (205). A rubber pad (207) is fixedly connected to the side of the sealing block (206).

2. A split-type irrigation device according to claim 1, characterized in that: The other end of the double-ended threaded pipe (201) is provided with a sliding sleeve groove (208). A second return spring (209) is fixedly connected inside the sliding sleeve groove (208). A sliding sleeve (210) is slidably connected inside the sliding sleeve groove (208). One end of the second return spring (209) is fixedly connected to the sliding sleeve (210).

3. A split-type irrigation device according to claim 2, characterized in that: The other end of the double-ended threaded tube (201) has a ball groove (211) inside. There are four ball grooves (211) and they are evenly distributed inside the side of the double-ended threaded tube (201). The ball grooves (211) are interconnected with the sliding sleeve groove (208).

4. A split-type irrigation device according to claim 3, characterized in that: The ball groove (211) is internally connected to a limiting bead (212), which is movably connected inside the sliding sleeve groove (208).

5. A split-type irrigation device according to claim 4, characterized in that: The connecting device (3) includes a threaded tube (301), and there are two threaded tubes (301). The threaded tube (301) is threadedly connected to the double-ended threaded tube (201). The bottom surface of the threaded tube (301) is provided with a through hole (302). A push block (303) is fixedly connected to the bottom surface of the threaded tube (301). A sealing gasket (304) is fixedly connected to the bottom surface of the threaded tube (301).

6. A split-type irrigation device according to claim 5, characterized in that: The threaded tube (301) has a ball groove two (305) on one side, and there are four ball groove two (305) that cooperate with the limiting bead (212).

7. A split-type irrigation device according to claim 6, characterized in that: The top surface of the threaded tube (301) is provided with a connecting hole (306), and a connecting tube (307) is fixedly connected to the top surface of the threaded tube (301).

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