Peritoneal dialysis solution dosing mechanism

Abstract

The utility model relates to the technical field of medical equipment, in particular to a peritoneal dialysis solution dosing mechanism which comprises a columnar shell, a dosing head inserting groove is formed in one end of the shell, and a medicine bottle inserting groove is formed in the other end of the shell. A first puncture head is arranged in the medicine adding head inserting groove, and a second puncture head is arranged in the medicine bottle inserting groove. The first puncture head and the second puncture head are communicated through a medicine adding channel. According to the peritoneal dialysis solution dosing mechanism, the first puncture head and the second puncture head are arranged in the outer shell, are protected by the outer shell and are not prone to being polluted, an operator can hold the outer shell by hand, and the dosing head of a peritoneal dialysis solution bag and a medicine bottle are connected and communicated. Liquid in the peritoneal dialysis solution bag can enter the medicine bottle for medicine preparation through the medicine adding channel, the prepared medicine can enter the peritoneal dialysis solution bag for use through the medicine adding channel, operation is convenient, repeated puncture operation is not needed, the pollution risk is reduced, the operation efficiency of medical staff is improved, and medicine adding operation can be completed by a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a peritoneal dialysis fluid dosing mechanism. Background Art

[0002] Peritoneal dialysis is a renal replacement therapy for patients with chronic kidney disease and uremia. It is a home dialysis method that patients can perform themselves, conserving medical resources. However, complications can occur during peritoneal dialysis, such as peritoneal dialysis-related peritonitis, electrolyte imbalances, and fibrin blockage of the catheter. The primary treatment for these complications is to add antibiotics, anticoagulants, and electrolytes to the peritoneal dialysis fluid, which is then instilled into the peritoneal cavity for absorption through the peritoneum.

[0003] Currently, the dosing process generally needs to be performed by medical staff in the hospital. Specifically, it includes: first, using a fusion medium to prepare the powdered drug to be added into a liquid, then using a syringe to aspirate the prepared liquid drug, then disinfecting the dosing port of the peritoneal dialysis bag, and finally puncturing the syringe needle into the dosing head of the peritoneal dialysis bag, pushing the syringe to inject the drug into the peritoneal dialysis fluid in the peritoneal dialysis bag. This dosing process is difficult because powdered drugs are generally contained in glass bottles with rubber stoppers, and the syringe needle needs to puncture the rubber stoppers multiple times. This leads to the risk of contamination during the operation, and it is easy to introduce a large number of plastic particles. The operation is complicated, requires more equipment, and is also prone to puncture injuries, which affects the efficiency of personnel operation. In addition, the dosing process has relatively high environmental requirements and is difficult for patients to operate at home. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art in that the peritoneal dialysis fluid dosing operation is complicated, affects the operating efficiency of medical personnel and increases the inconvenience of patients, and provide a peritoneal dialysis fluid dosing mechanism.

[0005] The utility model provides a peritoneal dialysis fluid dosing mechanism, comprising a columnar shell, one end of which is provided with a dosing head insertion slot, and the other end of which is provided with a medicine bottle insertion slot;

[0006] A first puncture head is provided in the dosing head plug slot, and a second puncture head is provided in the medicine bottle plug slot;

[0007] The first puncture head and the second puncture head are connected through a drug addition channel.

[0008] The utility model relates to a peritoneal dialysis fluid dosing mechanism. The first puncture head and the second puncture head are arranged in an outer shell and are protected by the outer shell so as not to be easily contaminated. When in use, an operator can hold the outer shell to connect the dosing head of the peritoneal dialysis fluid bag and the medicine bottle. The liquid in the peritoneal dialysis fluid bag can enter the medicine bottle through the dosing channel to prepare medicine. The prepared medicine can enter the peritoneal dialysis fluid bag through the dosing channel for use. The operation is convenient, multiple puncture operations are not required, the risk of contamination is reduced, the operating efficiency of medical personnel is improved, and the patient can perform the dosing operation by himself.

[0009] Preferably, the dosing head insertion slot is provided with a first sealing cover that extends into the dosing head insertion slot; the medicine bottle insertion slot is provided with a second sealing cover that extends into the medicine bottle insertion slot; and each of the first sealing cover and the second sealing cover is provided with a handle. This allows the dosing head insertion slot and the medicine bottle insertion slot to be initially closed, making it easy to remove them via the handle, thereby providing sterile isolation for the first and second puncture heads inside, and ensuring the safety of the dosing mechanism.

[0010] Preferably, a flexible seal is provided within the medicine bottle insertion groove; the flexible seal comprises an inner cavity wall for fitting the medicine bottle, the inner cavity wall comprising a tapered section that gradually narrows from the outside to the inside; and a flexible sealing ring is provided within the dosing head insertion groove. The provision of the flexible seal ensures stable contact between the end of the medicine bottle and the medicine bottle insertion groove, making it less likely to become disconnected during use. Furthermore, the provision of the tapered section within the flexible seal allows the medicine bottle insertion groove to accommodate medicine bottles of varying calibers.

[0011] Preferably, the dosing channel includes a first channel and a second channel; the first channel on the first puncture head is higher than the second channel; and the second channel on the second puncture head is higher than the first channel. This allows the first channel and the second channel to be connected to the medicine bottle and the dosing head at a different order, and a height difference after connection, facilitating the exchange of air and liquid between the peritoneal dialysis bag and the medicine bottle, ensuring smooth flow of liquid within the dosing channel.

[0012] Preferably, an air guide channel is provided in the housing, communicating with the dosing channel, and a filter block is provided at an opening of the air guide channel extending through the outer wall of the housing. By providing the air guide channel in the housing, the dosing channel can introduce or exhaust gas when the liquid is flowing, thereby enabling the liquid to flow smoothly.

[0013] Preferably, the outer wall of the housing is provided with a chute, the air guide channel runs through the bottom of the chute, the filter block is embedded in the bottom surface of the chute, and a sliding cover is provided in the chute, which can slide to cover the filter block and has anti-slip ribs. This allows the air guide channel to be manually opened or closed according to the flow of liquid in the dosing channel, thereby facilitating the use of the dosing mechanism.

[0014] Preferably, the outer wall of the housing is provided with a sealing membrane for sealing the chute, thereby ensuring that the air guide channel is in a sterile and sealed state when not in use.

[0015] Preferably, the first puncture head, the second puncture head and the shell are an integrally formed structural component.

[0016] Preferably, the first puncture head and the second puncture head are integrally formed structural parts, and the first puncture head and the second puncture head are embedded in the shell.

[0017] Preferably, the outer wall of the housing is provided with an anti-slip structure to facilitate handheld operation of the dosing mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The utility model provides a peritoneal dialysis fluid dosing mechanism. By disposing a first puncture head and a second puncture head within a housing, the dosing head is protected by the housing and is not easily contaminated. During use, an operator can hold the housing to connect the dosing head of the peritoneal dialysis fluid bag to the medicine bottle. Liquid in the peritoneal dialysis fluid bag can flow through a dosing channel into the medicine bottle for dosing. The dosing channel then allows the dosing of the dosing drug into the peritoneal dialysis fluid bag for use.

[0020] 2. The utility model provides a peritoneal dialysis fluid dosing mechanism that is easy to operate, does not require multiple puncture operations, reduces the risk of contamination and needlestick injuries, improves the operating efficiency of medical personnel, and can be performed by patients themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the cross-sectional structure of a peritoneal dialysis fluid dosing mechanism according to Example 1;

[0022] Figure 2 Schematic diagram of the structure of the housing in Example 1;

[0023] Figure 3 This is a schematic diagram of the external structure of a peritoneal dialysis fluid dosing mechanism according to Example 1;

[0024] Figure 4 This is a schematic structural diagram of the drug-adding channel in Example 2;

[0025] Figure 5 This is a schematic structural diagram of a peritoneal dialysis fluid dosing mechanism according to Example 3;

[0026] Figure 6 This is a schematic diagram of the structure of a peritoneal dialysis fluid dosing mechanism in use according to Example 3;

[0027] Markings in the figure:

[0028] 1-housing, 11-dosing head insertion slot, 12-medicine bottle insertion slot, 13-slide slot, 14-slide cover, 15-anti-slip rib, 16-anti-slip structure, 2-first puncture head, 3-second puncture head, 4-dosing channel, 41-first channel, 42-second channel, 5-first sealing cover, 51-handle, 6-second sealing cover, 7-flexible sealing element, 71-conical section, 8-flexible sealing ring, 9-air guide channel, 91-filter block, 92-sealing membrane, 10-dosing head, 20-medicine bottle. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0030] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships such as "upper," "lower," "left," "right," "center," "inside," and "outside" are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is placed when it is conventionally used. These terms of orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians, and do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, they should not be understood as limitations on the present invention.

[0031] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0032] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0033] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0034] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0035] Example 1

[0036] like Figure 1-Figure 3 As shown, a peritoneal dialysis fluid dosing mechanism includes a cylindrical shell 1, a first cover 5 and a second cover 6. One end of the shell 1 is provided with a dosing head plug-in slot 11, and the other end is provided with a medicine bottle plug-in slot 12. A first puncture head 2 is provided in the dosing head plug-in slot 11, and a second puncture head 3 is provided in the medicine bottle plug-in slot 12. The first puncture head 2 and the second puncture head 3 are connected through a dosing channel 4. The first cover 5 extends into the dosing head plug-in slot 11, and the second cover 6 extends into the medicine bottle plug-in slot 12.

[0037] In an optional embodiment, a handle portion 51 is provided on the first cover 5 and the second cover 6. The first cover 5 and the second cover 6 can be opened by pulling the handle portion 51 to open the dosing head insertion slot 11 and the medicine bottle insertion slot 12.

[0038] In an optional embodiment, the handle portion 51 may be a pull ring, a sheet structure, or other structural member that is convenient for manual operation.

[0039] In one or more embodiments, the first puncture tip 2, the second puncture tip 3, and the housing 1 are integrally formed. Each of the first puncture tip 2 and the second puncture tip 3 is made of hard plastic and has a pointed tip sized to fit the dosing tip 10 of the peritoneal dialysis bag and the stopper of the medicine bottle 20 to be punctured.

[0040] In one or more embodiments, the first puncture head 2 and the second puncture head 3 are integrally formed components, and the first puncture head 2 and the second puncture head 3 are embedded in the housing 1. This facilitates the preparation of the first puncture head 2 and the second puncture head 3, reduces the preparation difficulty, and reduces the preparation cost of the dosing mechanism.

[0041] In one or more embodiments, the outer wall of the housing 1 is provided with an anti-slip structure 16 to facilitate handheld operation of the dosing mechanism.

[0042] In an optional embodiment, the anti-slip structure 16 can be a groove, a ridge, a convex point or other structural parts provided on the outer wall of the housing 1 that can prevent the hands from slipping.

[0043] In one or more embodiments, a flexible seal 7 is provided in the medicine bottle insertion groove 12; the flexible seal 7 is a cylindrical structure, and the flexible seal 7 includes an inner cavity wall for fitting the medicine bottle 20, and the inner cavity wall includes a tapered section 71 that gradually shrinks from the outside to the inside; a flexible sealing ring 8 is provided in the dosing head insertion groove 11. By providing the flexible seal 7, the end of the medicine bottle 20 is in stable contact with the medicine bottle insertion groove 12, and is not easily disconnected during use. At the same time, by providing the tapered section 71 in the flexible seal 7, medicine bottles 20 of at least two calibers can be squeezed and stabilized during the insertion process of the flexible seal 7 due to the shape deformation of the flexible seal 7, so that the medicine bottle insertion groove 12 can adapt to the insertion and use of medicine bottles 20 of different calibers.

[0044] In an optional embodiment, the flexible seal 7 in the medicine bottle insertion groove 12 is embedded and can be an integrated silicone structural component, which can be deformed during the insertion of the medicine bottle 20 to prevent the medicine bottle 20 from being disconnected from the dosing mechanism.

[0045] In an optional embodiment, the flexible sealing ring 8 in the dosing head plug groove 11 is an annular protrusion, which can be integrally formed with the dosing head plug groove 11, or can be an embedded silicone sealing ring.

[0046] In a peritoneal dialysis fluid dosing mechanism according to this embodiment, a first puncture head 2 and a second puncture head 3 are disposed within a housing 1 and protected by the housing 1. Before use, the first puncture head 2 and the second puncture head 3 are aseptically sealed by a first cover 5 and a second cover 6 to prevent contamination. During use, an operator can hold the housing 1, open the first cover 5 and the second cover 6, and allow the first puncture head 2 to pierce the dosing head 10 of the peritoneal dialysis fluid bag, and the second puncture head 3 to pierce the stopper of the medicine bottle 20, so that the peritoneal dialysis fluid bag and the medicine bottle 20 are connected and conducted via a dosing channel 4. The liquid in the peritoneal dialysis fluid bag can enter the medicine bottle 20 through the dosing channel 4 to be prepared with medicine. The prepared medicine can then enter the peritoneal dialysis fluid bag through the dosing channel 4 for use. The operation is convenient, multiple puncture operations are not required, the risk of contamination is reduced, the operating efficiency of medical personnel is improved, and the patient can perform the dosing operation himself.

[0047] Example 2

[0048] like Figure 4As shown, a peritoneal dialysis fluid dosing mechanism of this embodiment has the same structure as that of Example 1, except that: the dosing channel 4 includes a first channel 41 and a second channel 42; the first channel 41 on the first puncture head 2 is higher than the second channel 42; the second channel 42 on the second puncture head 3 is higher than the first channel 41.

[0049] A peritoneal dialysis fluid dosing mechanism of this embodiment is provided with two dosing channels 4. The two dosing channels 4 have a connection sequence during the puncture process. The first channel 41 and the second channel 42 are connected to the medicine bottle 20 and the peritoneal dialysis fluid bag with a sequence difference. After the connection, there is a height difference, which facilitates the replacement of air and liquid between the peritoneal dialysis fluid bag and the medicine bottle 20 and ensures smooth flow of liquid in the dosing channels 4.

[0050] Example 3

[0051] like Figure 5-Figure 6 As shown, a peritoneal dialysis fluid dosing mechanism of this embodiment has the same structure as that of Example 1, except that: an air guide channel 9 is provided in the shell 1, the air guide channel 9 is connected to the dosing channel 4, and a filter block 91 is provided at the opening of the air guide channel 9 passing through the outer wall of the shell 1.

[0052] A peritoneal dialysis fluid dosing mechanism of this embodiment adds an air guide channel 9 to the housing 1, so that the dosing channel 4 can introduce or exhaust gas when the liquid is flowing, allowing the liquid to flow smoothly. The introduced or exhausted gas is filtered through the filter block 91 to avoid contamination.

[0053] In an optional embodiment, the air guide channel 9 is at an angle less than 90° relative to the axis of the housing 1, so that the liquid flowing in the dosing channel 4 is not easy to enter the air guide channel 9, reducing the risk of drug leakage.

[0054] In an optional embodiment, the filter block 91 may be immersed in disinfectant so that the introduced or exhausted gas passes through the filter block 91 for disinfection, thereby ensuring the safety of the dosing mechanism.

[0055] In an optional embodiment, the outer wall of the housing 1 is provided with a chute 13, the air guide channel 9 extends through the bottom of the chute 13, and the filter block 91 is embedded in the bottom surface of the chute 13. A sliding cover 14 is provided within the chute 13, which can slide to cover the filter block 91 and has anti-slip ribs 15. This allows the air guide channel 9 to be manually opened or closed according to the flow of liquid in the dosing channel 4, facilitating the use of the dosing mechanism.

[0056] In an optional embodiment, the outer wall of the housing 1 is provided with a sealing membrane 92 for sealing the chute 13, thereby ensuring that the air guide channel 9 is in a sterile and closed state when not in use.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A peritoneal dialysis fluid dosing mechanism, characterized in that: The invention comprises a cylindrical shell (1), wherein one end of the shell (1) is provided with a dosing head insertion groove (11), and the other end is provided with a medicine bottle insertion groove (12); A first puncture head (2) is provided in the medicine-adding head insertion groove (11), and a second puncture head (3) is provided in the medicine bottle insertion groove (12); The first puncture head (2) and the second puncture head (3) are connected via a drug addition channel (4); A flexible sealing member (7) is provided in the medicine bottle insertion groove (12); The flexible sealing member (7) includes an inner cavity wall for fitting the medicine bottle, and the inner cavity wall includes a tapered section (71) that gradually decreases from the outside to the inside; A flexible sealing ring (8) is provided in the dosing head plug groove (11).

2. A peritoneal dialysis fluid dosing mechanism according to claim 1, characterized in that: The dosing head plug-in slot (11) is provided with a first sealing cover (5), and the first sealing cover (5) extends into the dosing head plug-in slot (11); The medicine bottle insertion groove (12) is provided with a second sealing cover (6), and the second sealing cover (6) extends into the medicine bottle insertion groove (12); The first cover (5) and the second cover (6) are respectively provided with a handle portion (51).

3. A peritoneal dialysis fluid dosing mechanism according to claim 1, characterized in that: The drug adding channel (4) includes a first channel (41) and a second channel (42); The first channel (41) on the first puncture head (2) is higher than the second channel (42); The second channel (42) on the second puncture head (3) is higher than the first channel (41).

4. The peritoneal dialysis fluid dosing mechanism according to claim 1, characterized in that: An air guide channel (9) is provided in the housing (1), the air guide channel (9) is communicated with the drug adding channel (4), and a filter block (91) is provided at an opening of the air guide channel (9) penetrating the outer wall of the housing (1).

5. The peritoneal dialysis fluid dosing mechanism according to claim 4, characterized in that: The outer wall of the housing (1) is provided with a slide groove (13), the air guide channel (9) passes through the bottom of the slide groove (13), the filter block (91) is embedded in the bottom surface of the slide groove (13), a slide cover (14) is provided in the slide groove (13), the slide cover (14) can slide to cover the filter block (91), and an anti-slip rib (15) is provided on the slide cover (14).

6. The peritoneal dialysis fluid dosing mechanism according to claim 5, characterized in that: The outer wall of the housing (1) is provided with a sealing film (92) for closing the chute (13).

7. A peritoneal dialysis fluid dosing mechanism according to any one of claims 1 to 6, characterized in that: The first puncture head (2), the second puncture head (3) and the housing (1) are integrally formed structural parts.

8. A peritoneal dialysis fluid dosing mechanism according to any one of claims 1 to 6, characterized in that: The first puncture head (2) and the second puncture head (3) are integrally formed structural parts, and the first puncture head (2) and the second puncture head (3) are embedded in the housing (1).

9. A peritoneal dialysis fluid dosing mechanism according to any one of claims 1 to 6, characterized in that: The outer wall of the housing (1) is provided with an anti-slip structure (16).

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