Integrated anti-tumor chemotherapeutic drug closed dosing device

Abstract

The invention discloses an integrated anti-tumor chemotherapeutic drug closed dosing device, and relates to the technical field of chemotherapeutic drug configuration, the integrated anti-tumor chemotherapeutic drug closed dosing device comprises a shell, a plurality of fixing tubes, an isolation assembly and a protection assembly, an inner cavity is formed in the shell, a piston block is slidably arranged in the inner cavity, a pressing rod is fixedly arranged on the outer side of the piston block, an inclined plane is arranged on the outer side of the shell, and the fixing tubes are fixed to the inclined plane; according to the invention, the plurality of needle heads are arranged on the outer side of the shell, the needle heads are communicated with the inner cavity through the fixing tubes, the needle heads are respectively inserted into the sodium chloride solution bag and the medicine bottle, and then the opening and closing of internal channels of the corresponding needle heads are controlled through the isolation assembly; by means of the technical scheme, transferring of a sodium chloride solution, dissolving of medicine powder and transferring of liquid medicine can be achieved under the condition that a needle does not need to be pulled out, so that totally-closed medicine dispensing and transferring of the liquid medicine are achieved, chemotherapy medicine leakage and environmental pollution caused in the medicine preparation process are reduced, and the risk of dangerous medicine occupational exposure of medical staff is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of chemotherapy drug preparation, and specifically to an integrated airtight drug addition device for anti-tumor chemotherapy drugs. Background Art

[0002] Anti-tumor chemotherapy is an important means for treating malignant tumors. It inhibits or kills tumor cells by using special chemotherapy drugs, thereby controlling the recurrence and metastasis of tumors. When performing anti-tumor chemotherapy, medical staff need to prepare chemotherapy drugs.

[0003] When preparing anti-tumor drugs, medical staff need to use a syringe to suck out sodium chloride solution from a sodium chloride solution bag, transfer the sucked sodium chloride solution into a medicine bottle. After the medicine powder in the medicine bottle is dissolved by the sodium chloride solution, the liquid medicine is then transferred into the sodium chloride solution bag. During the transfer process of chemotherapy drug preparation, when pulling out the syringe, the liquid medicine will form particulate aerosol or the pressure in the medicine bottle increases, causing the liquid medicine to spray out, resulting in the leakage of chemotherapy drugs and the pollution of the air, exposing medical staff to the risk of occupational exposure to chemotherapy drugs. Moreover, this drug addition step is cumbersome and lacks airtightness. Therefore, we propose an integrated airtight drug addition device for anti-tumor chemotherapy drugs. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated airtight drug addition device for anti-tumor chemotherapy drugs to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An integrated airtight drug addition device for anti-tumor chemotherapy drugs, including a housing, a plurality of fixed tubes, an isolation component, and a protection component. An inner cavity is provided inside the housing, a piston block is slidably provided inside the inner cavity, a pressure rod is fixedly provided on the outside of the piston block, and the end of the pressure rod away from the piston block penetrates through the housing. On the side of the housing away from the pressure rod, there are symmetrically distributed inclined surfaces. An auxiliary surface cooperating with the inclined surfaces is provided inside the inner cavity. The piston block cooperates with the inner cavity and the auxiliary surface. The fixed tube is fixed to the inclined surface and communicates with the inner cavity. The end of the fixed tube away from the housing is provided with a needle. The isolation component is provided between the fixed tube and the needle for opening and closing the channel between the needle and the fixed tube. The protection component is provided outside the housing for protecting the needle.

[0006] Preferably, the isolation component includes an isolation sleeve. The isolation sleeve is provided between the fixed tube and the needle. An installation frame is fixedly provided on the outside of the needle, and the installation frame is fixed to the outside of the housing. Limiting rings are fixedly provided on the outside of the fixed tube and the needle at the relative positions. The outside of the isolation sleeve is rotatably connected to the limiting rings. Blocking rings are fixedly provided at both ends of the isolation sleeve, and the inner sides of the two blocking rings cooperate with the outside of the fixed tube and the needle respectively. Baffles are fixedly provided inside the isolation sleeve and the fixed tube, and the two baffles are attached to each other. The baffle is provided with evenly distributed openings. A limiting component for limiting the isolation sleeve is provided inside the installation frame.

[0007] Preferably, the opening is fan-shaped, and each baffle is provided with three openings, and the size of the opening is smaller than the size of the shielding portions provided on both sides of the opening.

[0008] Preferably, the limit assembly includes a limit block, two limit blocks are provided, both limit blocks are fixedly arranged on the outside of the isolation sleeve, a limit opening is provided in the mounting frame, the limit opening cooperates with the limit block, placement grooves are provided on both sides of the limit opening, a limit shaft is slidably provided in the placement groove, a compression spring is fixedly provided on the side of the limit shaft away from the limit opening, the compression spring is fixed to the inside of the placement groove, a spherical block is fixedly provided on the end of the limit shaft close to the limit opening, a spherical groove is provided at the position where the limit block contacts the inner side of the limit opening, and the spherical groove cooperates with the spherical block.

[0009] Preferably, the protection component includes a protective sleeve, and multiple protective sleeves are provided. The protective sleeve is arranged on the outside of the needle, the protective sleeve is fixed to the shell, an annular plate is fixed inside the protective sleeve, the needle is arranged in the annular plate, multiple sliding sleeves are provided on the annular plate, the sliding sleeve is slidably connected to the annular plate, the multiple sliding sleeves are concentric, and the inner diameter of the sliding sleeve gradually increases.

[0010] Preferably, an operating window is provided on the outside of the protective cover, and annular tracks are provided on both sides of the operating window. The annular tracks are fixed to the protective cover, and an arc-shaped cover plate is slidably provided on the outside of the operating window. Both sides of the arc-shaped cover plate slide with the inner side of the annular track. A stopper is fixed inside the annular track and is arranged below the operating window.

[0011] Preferably, a protrusion is fixedly provided on the outer side of the arc-shaped cover plate.

[0012] Preferably, a handle is fixedly provided on the outside of the shell, the handle is arranged on the outside of the pressure rod, and an auxiliary rod perpendicular to the pressure rod is fixedly provided on one end of the pressure rod located on the outside of the shell.

[0013] Preferably, an auxiliary handle is fixedly provided on the outer side of the top of the shell.

[0014] Preferably, a protective cover is embedded in one end of the protective sleeve away from the shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges multiple needles on the outside of the shell, and the needles are connected to the inner cavity through fixed tubes. The needles are respectively inserted into the sodium chloride solution bag and the medicine bottle, and then the opening and closing of the internal channels of the corresponding needles are controlled by the isolation component. The transfer of sodium chloride solution, the dissolution of medicine powder, and the transfer of medicine liquid can be achieved without pulling out the needles, thereby reducing leakage during the drug preparation process and reducing the occupational exposure of medical staff to dangerous drugs.

[0017] 2. By rotating the isolation sleeve, the isolation sleeve and the baffle plate arranged inside the fixed pipe are driven to rotate out of alignment. When the shielding part of the baffle plate of the isolation sleeve covers the opening of the baffle plate inside the fixed pipe, the internal channels of the isolation sleeve and the fixed pipe are closed; when the shielding part of the baffle plate of the isolation sleeve rotates away from the opening of the baffle plate inside the fixed pipe, the internal channels of the isolation sleeve and the fixed pipe are opened.

[0018] 3. By arranging a protective sleeve outside the needle, it can prevent medical staff from touching the needle, avoid the occurrence of needle stick injuries, and can also protect the needle from being contaminated. At the same time, the sliding sleeve arranged inside the protective sleeve can hoop the mouth of the medicine bottle or the mouth of the sodium chloride solution bag, and provide auxiliary support through the sliding sleeve when the needle is inserted into the mouth of the medicine bottle or the mouth of the sodium chloride solution bag. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the internal structure of the inner cavity before the piston block of the present invention moves;

[0021] Figure 3 is a schematic diagram of the internal structure of the inner cavity after the piston block of the present invention moves;

[0022] Figure 4 is a schematic diagram of the structure of the protective sleeve part of the present invention;

[0023] Figure 5 is a schematic diagram of the internal structure of the protective sleeve of the present invention;

[0024] Figure 6 is a schematic diagram of the distribution of the sliding sleeves on the annular plate of the present invention;

[0025] Figure 7 is a schematic diagram of the structure of the isolation sleeve part of the present invention;

[0026] Figure 8 is a schematic cross-sectional view of the isolation component of the present invention;

[0027] Figure 9 is a schematic diagram of the relative positions of the two baffle plates when the internal channels of the isolation sleeve and the fixed pipe of the present invention are closed;

[0028] Figure 10 is a schematic diagram of the relative positions of the two baffle plates when the internal channels of the isolation sleeve and the fixed pipe of the present invention are opened.

[0029] In the figure: 1 - housing; 2 - inner cavity; 3 - piston block; 4 - pressure rod; 5 - fixed tube; 6 - inclined surface; 7 - needle; 8 - isolation component; 9 - protection component; 10 - isolation sleeve; 11 - mounting bracket; 12 - limit ring; 13 - retaining ring; 14 - baffle; 15 - opening; 16 - limit component; 17 - limit block; 18 - limit opening; 19 - placement groove; 20 - limit shaft; 21 - compression spring; 22 - spherical block; 23 - spherical groove; 24 - protective sleeve; 25 - annular plate; 26 - sliding sleeve; 27 - operation window; 28 - annular track; 29 - arc-shaped cover plate; 30 - protrusion; 31 - handle; 32 - auxiliary rod; 33 - auxiliary handle; 34 - protective cover. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment:

[0032] Please refer to Figure 1 - Figure 10 , as shown in the figure, an integrated airtight drug addition device for anti-tumor chemotherapy drugs, including a housing 1, a plurality of fixed tubes 5, an isolation component 8 and a protection component 9. An inner cavity 2 is provided in the housing 1. A piston block 3 is slidably provided in the inner cavity 2. A pressure rod 4 is fixedly provided on the outer side of the piston block 3. One end of the pressure rod 4 away from the piston block 3 penetrates through the housing 1. Symmetrically distributed inclined surfaces 6 are provided on the side of the housing 1 away from the pressure rod 4. An auxiliary surface cooperating with the inclined surfaces 6 is provided in the inner cavity 2. The piston block 3 cooperates with the inner cavity 2 and the auxiliary surface. The fixed tube 5 is fixed to the inclined surface 6 and communicates with the inner cavity 2. A needle 7 is provided at one end of the fixed tube 5 away from the housing 1. When the needles 7 are respectively inserted into the medicine bottle and the mouth of the sodium chloride solution bag, the opening and closing of the internal channels of the needles 7 at the medicine bottle and the sodium chloride solution bag are respectively controlled by the isolation component 8, and the transfer of the sodium chloride solution, the dissolution of the medicine powder, and the transfer operation of the liquid medicine are completed. The whole process is directly completed while the needles 7 are inserted into the medicine bottle and the sodium chloride solution bag at the same time, avoiding the exposure of the needles 7 to the air during the operation, thereby reducing the risk of liquid medicine leakage and realizing the fully airtight preparation and transfer of the liquid medicine;

[0033] The isolation component 8 is arranged between the fixed tube 5 and the needle 7 and is used to open and close the channel between the needle 7 and the fixed tube 5. By rotating the isolation sleeve 10, the isolation sleeve 10 and the baffle 14 arranged in the fixed tube 5 rotate out of position. When the shielding part of the baffle 14 of the isolation sleeve 10 covers the opening 15 of the baffle 14 in the fixed tube 5, the internal channel between the isolation sleeve 10 and the fixed tube 5 is closed; when the shielding part of the baffle 14 of the isolation sleeve 10 rotates away from the opening 15 of the baffle 14 in the fixed tube 5, the internal channel between the isolation sleeve 10 and the fixed tube 5 is opened;

[0034] The protection component 9 is arranged outside the housing 1 and is used to protect the needle 7. By arranging a protective sleeve 24 outside the needle 7, it can prevent medical staff from touching the needle 7, reducing the risk of medical staff being infected. At the same time, it can protect the needle 7 from being infected. At the same time, the sliding sleeve 26 arranged in the protective sleeve 24 can hoop the mouth of the medicine bottle or the sodium chloride solution bag, and provide auxiliary support through the sliding sleeve 26 when the needle 7 is inserted into the mouth of the medicine bottle or the sodium chloride solution bag.

[0035] The following will combine with the drawings to elaborate on some embodiments of the present application in detail:

[0036] Please refer to Figure 1 - Figure 10 In this embodiment: By arranging a plurality of needles 7 outside the housing 1, the needles 7 are connected to the inner cavity 2 through the fixed tubes 5. By inserting the needles 7 into the sodium chloride solution bag and the medicine bottle respectively, and then controlling the opening and closing of the internal channels of the corresponding needles 7 through the isolation component 8, the transfer of sodium chloride solution, the dissolution of medicine powder, and the transfer of liquid medicine can be realized without the need to pull out the needles 7, thereby reducing the risk of liquid medicine leakage and realizing the fully enclosed dispensing and transfer of liquid medicine.

[0037] Among them, the isolation component 8 includes an isolation sleeve 10. The isolation sleeve 10 is arranged between the fixed tube 5 and the needle 7. An installation frame 11 is fixedly arranged outside the needle 7. The installation frame 11 is fixed to the outside of the housing 1. Limiting rings 12 are fixedly arranged on the outside of the positions where the fixed tube 5 and the needle 7 face each other. The outside of the isolation sleeve 10 is rotationally connected to the limiting ring 12. Blocking rings 13 are fixedly arranged at both ends of the isolation sleeve 10. The inner sides of the two blocking rings 13 cooperate with the outside of the fixed tube 5 and the needle 7 respectively. Baffles 14 are fixedly arranged in both the isolation sleeve 10 and the fixed tube 5. The two baffles 14 are attached together. Openings 15 are evenly distributed on the baffle 14. A limiting component 16 for limiting the isolation sleeve 10 is arranged in the installation frame 11;

[0038] Furthermore, the opening 15 is fan-shaped. Three openings 15 are arranged on each baffle 14. The size of the opening 15 is smaller than the size of the shielding parts arranged on both sides of the opening 15;

[0039] In addition, refer to Figure 7 and Figure 8The limiting assembly 16 includes a limiting block 17, two limiting blocks 17 are provided, and the two limiting blocks 17 are fixed to the outside of the isolation sleeve 10. A limiting opening 18 is provided in the mounting frame 11, and the limiting opening 18 cooperates with the limiting block 17. Placement grooves 19 are provided on both sides of the limiting opening 18. A limiting shaft 20 is slidably provided in the placement groove 19. A compression spring 21 is fixedly provided on the side of the limiting shaft 20 away from the limiting opening 18. The compression spring 21 is fixed inside the placement groove 19. A spherical block 22 is fixedly provided at one end of the limiting shaft 20 close to the limiting opening 18. A spherical groove 23 is provided at the contacting portion between the limiting block 17 and the inner side of the limiting opening 18, and the spherical groove 23 cooperates with the spherical block 22.

[0040] The isolation assembly 8 controls the opening and closing principle of the channel connecting the inside of the needle 7 and the inner cavity 2: by rotating the isolation sleeve 10, the isolation sleeve 10 and the baffle 14 provided in the fixed tube 5 are driven to rotate in an offset manner. When the shielding portion of the baffle 14 of the isolation sleeve 10 covers the opening 15 of the baffle 14 in the fixed tube 5, the isolation sleeve 10 and the internal channel of the fixed tube 5 are closed; when the shielding portion of the baffle 14 of the isolation sleeve 10 rotates away from the opening 15 of the baffle 14 in the fixed tube 5, the isolation sleeve 10 and the internal channel of the fixed tube 5 are opened;

[0041] When the limit block 17 on the outside of the isolation sleeve 10 rotates to the limit opening 18, the limit shaft 20 in the placement groove 19 slides toward the limit block 17 under the action of the compression spring 21 until the spherical block 22 of the limit shaft 20 is embedded in the spherical groove 23 of the limit block 17. At this time, the isolation sleeve 10 is limited to the outside of the fixed tube 5; when the two limit blocks 17 are limited in the limit opening 18, they can respectively indicate the opening and closing of the channels in the isolation sleeve 10 and the fixed tube 5.

[0042] It is worth noting that reference Figure 8 The interior of the isolation sleeve 10 is flush with the interior of the needle 7 and the fixing tube 5, ensuring the straightness of the internal passage from the needle 7 to the inner cavity 2.

[0043] refer to Figure 1 - Figure 7 The protection assembly 9 includes a protection sleeve 24, a plurality of protection sleeves 24 are provided, the protection sleeve 24 is arranged outside the needle 7, the protection sleeve 24 is fixed to the housing 1, an annular plate 25 is fixedly provided inside the protection sleeve 24, the needle 7 is arranged inside the annular plate 25, a plurality of sliding sleeves 26 are provided on the annular plate 25, the sliding sleeves 26 are slidably connected to the annular plate 25, the plurality of sliding sleeves 26 are concentric, and the inner diameter of the sliding sleeve 26 gradually increases;

[0044] At the same time, a protective cover 34 is embedded in one end of the protective sleeve 24 away from the housing 1;

[0045] The principle of the protection component 9 protecting the needle 7 is as follows: when not in use, the protection cover 34 covers the protection sleeve 24, and the needle 7 can be sealed in the protection sleeve 24. When in use, the protection cover 34 is removed, and the mouth of the medicine bottle and the mouth of the sodium chloride solution bag are respectively inserted into the protection sleeve 24. The sliding sleeve 26 in the protection sleeve 24 is clamped on the outside of the mouth of the medicine bottle and the mouth of the sodium chloride solution bag until the needle 7 in the protection sleeve 24 is inserted into the mouth of the medicine bottle and the mouth of the sodium chloride solution bag. At this time, the sliding sleeve 26 provides auxiliary support for the mouth of the medicine bottle and the mouth of the sodium chloride solution bag, ensuring that the needle 7 is stably inserted into the plugs of the mouth of the medicine bottle and the mouth of the sodium chloride solution bag during subsequent dispensing operations.

[0046] It is worth noting that an operation window 27 is provided on the outside of the protective cover 24, and an annular track 28 is provided on both sides of the operation window 27. The annular track 28 is fixed to the protective cover 24, and an arc-shaped cover plate 29 is slidably provided on the outside of the operation window 27. A protrusion 30 is fixedly provided on the outside of the arc-shaped cover plate 29. Both sides of the arc-shaped cover plate 29 are slidably matched with the inner side of the annular track 28. A stopper is fixedly provided in the annular track 28, and the stopper is arranged below the operation window 27;

[0047] In order to facilitate medical staff to operate the isolation sleeve 10, an operation window 27 is set on the outside of the protective sleeve 24 at a corresponding position of the isolation sleeve 10. When the isolation sleeve 10 needs to be rotated, the arc cover plate 29 is pulled up through the protrusion 30 to expose the operation window 27, and the medical staff can rotate the isolation sleeve 10. After the rotation is completed, the arc cover plate 29 is lowered to seal the operation window 27, which can prevent the isolation sleeve 10 from being accidentally driven.

[0048] For further reference, Figure 1 In order to operate the medicine bottle and the sodium chloride solution bag, two needles 7 are provided on the outside of the housing 1.

[0049] In this technical solution, reference Figure 1 and Figure 2 A handle 31 is fixedly provided on the outside of the shell 1, and the handle 31 is arranged on the outside of the pressure rod 4. An auxiliary rod 32 perpendicular to the pressure rod 4 is fixedly provided at one end of the pressure rod 4 located on the outside of the shell 1. An auxiliary handle 33 is fixedly provided on the outside of the top of the shell 1, which is convenient for medical staff to control the pressure rod 4 to move on the shell 1 through the auxiliary rod 32, thereby pushing the piston block 3 in the inner cavity 2 to move.

[0050] The method of using this device is as follows:

[0051] First, remove the protective caps 34 of the two protective sleeves 24, insert the medicine bottle mouth and the sodium chloride solution bag mouth into the two protective sleeves 24 respectively. During the process of the medicine bottle mouth and the sodium chloride solution bag mouth entering the protective sleeves 24, the sliding sleeves 26 inside the protective sleeves 24 clamp on the outer sides of the medicine bottle mouth and the sodium chloride solution bag mouth until the needle 7 inserts into the medicine bottle mouth and the sodium chloride solution bag mouth through the stopper. At this time, the sliding sleeve 26 provides auxiliary support for the medicine bottle mouth and the sodium chloride solution bag mouth, ensuring that the needle 7 is firmly inserted into the stoppers of the medicine bottle mouth and the sodium chloride solution bag mouth during the subsequent medicine preparation operation;

[0052] Then, open the operation window 27 on the outer side of the protective sleeve 24 at the position of the needle 7 connected to the medicine bottle. At this time, the limiting block 17 on the isolation sleeve 10 is embedded in the limiting port 18, and the shielding part of the baffle 14 inside the isolation sleeve 10 turns away from the opening 15 of the baffle 14 in the corresponding fixed tube 5. At this time, the internal channels of the isolation sleeve 10 and the fixed tube 5 are in an open state. The medical staff rotates the isolation sleeve 10 at this position until another limiting block 17 on the outer side of the isolation sleeve 10 is embedded in the limiting port 18 on the mounting bracket 11 through the cooperation of the spherical block 22 and the spherical groove 23. At this time, the shielding part of the baffle 14 inside the isolation sleeve 10 blocks the opening 15 of the baffle 14 in the corresponding fixed tube 5, closing the internal channels of the isolation sleeve 10 and the fixed tube 5. Correspondingly, open the internal channel at the position of the needle 7 connected to the sodium chloride solution bag;

[0053] Pull the pressure lever 4 through the auxiliary lever 32. The pressure lever 4 drives the piston block 3 to move in the inner cavity 2, thereby creating a negative pressure in the inner cavity 2. The sodium chloride solution is drawn from the sodium chloride solution bag into the inner cavity 2 through the needle 7, the isolation sleeve 10, and the fixed tube 5. At this time, the medical staff operates the isolation sleeve 10 at the position of the needle 7 of the sodium chloride solution bag to close the internal channel at the position of the needle 7 of the sodium chloride solution bag, and then operates the isolation sleeve 10 at the position of the needle 7 of the medicine bottle to open the internal channel at the position of the needle 7 of the medicine bottle;

[0054] Press the pressure lever 4 through the auxiliary lever 32. The pressure lever 4 drives the piston block 3 to move in the inner cavity 2, pushing the sodium chloride solution in the inner cavity 2 into the medicine bottle. By continuously pulling and pressing the pressure lever 4, the sodium chloride solution is fully mixed with the medicine powder in the medicine bottle to form a liquid medicine, and finally the pressure lever 4 is pulled out to suck the liquid medicine into the inner cavity 2;

[0055] After that, the medical staff operates the isolation sleeve 10 at the position of the needle 7 of the medicine bottle to close the internal channel at the position of the needle 7 of the medicine bottle, and then operates the isolation sleeve 10 at the position of the needle 7 of the sodium chloride solution bag to open the internal channel at the position of the needle 7 of the sodium chloride solution bag, press the pressure lever 4, and push the liquid medicine in the inner cavity 2 into the sodium chloride solution bag to complete the addition and preparation of the anti-tumor chemotherapy drug.

[0056] In the implementation mode of the present technical solution, during the transfer of the sodium chloride solution, the dissolution of the medicinal powder, and the transfer operation of the medicinal liquid, the entire process is directly completed while the needle 7 is inserted into the medicine bottle and the sodium chloride solution bag at the same time, avoiding the exposure of the needle 7 to the air during the operation process, thereby reducing the risk of liquid leakage of the medicinal liquid.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated anti-tumor chemotherapy drug enclosed dosing device, characterized in that: include: A shell (1), wherein an inner cavity (2) is provided in the shell (1), a piston block (3) is slidably provided in the inner cavity (2), a pressure rod (4) is fixedly provided on the outer side of the piston block (3), and an end of the pressure rod (4) away from the piston block (3) passes through the shell (1); A plurality of fixed tubes (5), a side of the housing (1) away from the pressure rod (4) is provided with symmetrically distributed inclined surfaces (6), an auxiliary surface cooperating with the inclined surface (6) is provided in the inner cavity (2), the piston block (3) cooperates with the inner cavity (2) and the auxiliary surface, the fixed tube (5) is fixed to the inclined surface (6) and communicates with the inner cavity (2), and a needle (7) is provided at one end of the fixed tube (5) away from the housing (1); an isolation component (8), the isolation component (8) being arranged between the fixed tube (5) and the needle (7) and being used for opening and closing the passage between the needle (7) and the fixed tube (5); A protection component (9), wherein the protection component (9) is arranged outside the housing (1) and is used to protect the needle (7).

2. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 1 is characterized in that: The isolation assembly (8) comprises an isolation sleeve (10), the isolation sleeve (10) being arranged between the fixed tube (5) and the needle (7), a mounting frame (11) being fixedly arranged on the outer side of the needle (7), the mounting frame (11) being fixedly arranged on the outer side of the housing (1), a limiting ring (12) being fixedly arranged on the outer side of the relative position between the fixed tube (5) and the needle (7), the outer side of the isolation sleeve (10) being rotatably connected to the limiting ring (12), retaining rings (13) being fixedly arranged on both ends of the isolation sleeve (10), the inner sides of the two retaining rings (13) respectively cooperating with the outer sides of the fixed tube (5) and the needle (7), a baffle (14) being fixedly arranged on the inside of the isolation sleeve (10) and the fixed tube (5), the two baffles (14) being fitted together, the baffles (14) being provided with evenly distributed openings (15), and a limiting assembly (16) for limiting the isolation sleeve (10) being provided in the mounting frame (11).

3. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 2 is characterized in that: The opening (15) is fan-shaped, and each baffle (14) is provided with three openings (15). The size of the opening (15) is smaller than the size of the shielding portions provided on both sides of the opening (15).

4. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 3 is characterized in that: The limiting assembly (16) comprises a limiting block (17), two limiting blocks (17) are provided, and the two limiting blocks (17) are fixedly arranged on the outside of the isolation sleeve (10). A limiting opening (18) is provided in the mounting frame (11), and the limiting opening (18) cooperates with the limiting block (17). Placement grooves (19) are provided on both sides of the limiting opening (18), and a limiting shaft (20) is slidably arranged in the placement groove (19). A compression spring (21) is fixedly provided on the side of the limiting shaft (20) away from the limiting opening (18), and the compression spring (21) is fixed inside the placement groove (19). A spherical block (22) is fixedly provided on the end of the limiting shaft (20) close to the limiting opening (18), and a spherical groove (23) is provided at the portion where the limiting block (17) contacts the inner side of the limiting opening (18), and the spherical groove (23) cooperates with the spherical block (22).

5. The integrated anti-tumor chemotherapy drug sealed dosing device according to claim 1 is characterized in that: The protection component (9) comprises a protection sleeve (24), wherein a plurality of the protection sleeves (24) are provided, the protection sleeve (24) is arranged outside the needle (7), the protection sleeve (24) is fixed to the housing (1), an annular plate (25) is fixedly provided inside the protection sleeve (24), the needle (7) is arranged inside the annular plate (25), a plurality of sliding sleeves (26) are provided on the annular plate (25), the sliding sleeves (26) are slidably connected to the annular plate (25), the plurality of sliding sleeves (26) are concentric, and the inner diameter of the sliding sleeve (26) gradually increases.

6. The integrated anti-tumor chemotherapy drug sealed dosing device according to claim 5 is characterized in that: An operating window (27) is provided on the outside of the protective cover (24), and annular tracks (28) are provided on both sides of the operating window (27). The annular track (28) is fixed to the protective cover (24). An arc-shaped cover plate (29) is slidably provided on the outside of the operating window (27). Both sides of the arc-shaped cover plate (29) are slidably matched with the inner side of the annular track (28). A stopper is fixedly provided in the annular track (28), and the stopper is arranged below the operating window (27).

7. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 6, characterized in that: A protrusion (30) is fixedly provided on the outer side of the arc-shaped cover plate (29).

8. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 1, characterized in that: A handle (31) is fixedly provided on the outside of the shell (1), and the handle (31) is arranged on the outside of the pressure rod (4). An auxiliary rod (32) perpendicular to the pressure rod (4) is fixedly provided on one end of the pressure rod (4) located on the outside of the shell (1).

9. The integrated anti-tumor chemotherapy drug enclosed dosing device according to claim 8, characterized in that: An auxiliary handle (33) is fixedly provided on the outer side of the top of the housing (1).

10. The integrated anti-tumor chemotherapy drug sealed dosing device according to claim 5, characterized in that: A protective cover (34) is embedded at one end of the protective sleeve (24) away from the housing (1).

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