Drug delivery device for medical oncology

Abstract

The invention discloses a drug delivery device for medical oncology. The drug delivery device comprises a powder injection fusion device, a mixed liquid pushing cavity and a penetrating connection component. The invention belongs to the field of medical instruments, and particularly relates to an administration device for medical oncology. According to the invention, through the connection of a plurality of powder injection fusion devices and the mixed liquid pushing cavity, the powder of a plurality of powder injections can be dissolved at the same time, the medicine fusion effect in the device is improved by realizing the negative pressure environment in the fusion cavity tube, the time required by medicine blending is greatly shortened, and the medicine blending efficiency is improved while the medicine blending efficiency is improved. The human cost input of medical staff is reduced, manual operation steps are saved, and inevitable economic losses or potential safety hazards caused by human errors in the medicine fusion stage are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically refers to a drug delivery device for oncology. Background Art

[0002] During the treatment process in oncology, powdered targeted drugs will be administered according to actual conditions. Before administration, the powder needle needs to be melted before use. However, since the powder needle needs to be completely melted before use, the operator needs to fuse the powder needle individually and efficiently, which takes a long time and has low work efficiency. In addition, during the artificial fusion process, drug residues are easily left, which affects the drug fusion effect and has a direct impact on the medication effect, which will inevitably cause negative effects in the process of tumor treatment. Summary of the invention

[0003] In view of the above situation, the present invention provides an oncology drug delivery device, which realizes the dissolution of multiple powder injection powders at the same time by connecting the proposed multiple powder injection fusion devices with the mixed liquid pushing cavity, and improves the drug fusion effect in the device by realizing the negative pressure environment in the fusion cavity, greatly shortening the time required for drug preparation, and reducing the manpower cost investment of medical staff while improving the drug fusion efficiency, saving manual operation steps, and avoiding inevitable economic losses or safety hazards caused by human errors in the drug fusion stage.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes an oncology drug delivery device, comprising a powder needle fusion device, a mixed liquid pushing chamber and an interpenetrating connecting component, wherein the interpenetrating connecting component connects the powder needle fusion device and the mixed liquid pushing chamber, wherein the powder needle fusion device is distributed in a circular array around the mixed liquid pushing chamber, wherein the powder needle fusion device comprises a fusion chamber component and a pulling component, wherein the pulling component is interpenetratingly arranged in the fusion chamber component.

[0005] Furthermore, the powder needle fusion device is provided with multiple groups and fixedly arranged in a circular array around the mixed liquid pushing cavity, the fusion cavity component includes a fusion cavity tube, a connecting bottom ring, a covering top ring and a pushing gear ring, the connecting bottom ring is fixedly arranged at the bottom of the fusion cavity tube, the covering top ring is fixedly arranged at the top of the fusion cavity tube, an upper end sliding groove is opened at the upper end of the inner wall of the fusion cavity tube, an external clamping ring is fixedly arranged on the outer wall of the fusion cavity tube, and the pushing gear ring is slidably arranged in the covering top ring.

[0006] Preferably, a connecting hole is opened at the center position of the connecting bottom ring, a first-order ring is fixedly provided at the bottom of the connecting bottom ring, a second-order ring is fixedly provided at the bottom of the first-order ring, the first-order ring, the second-order ring and the connecting bottom ring are arranged concentrically, and a supporting member is fixedly provided on the top surface of the connecting bottom ring.

[0007] As a further preferred embodiment of the present invention, the support member includes a support ring, a support cross bar and a support spring, the support cross bar is fixedly connected to both ends of the support ring, the bottom surface of the support cross bar is fixedly connected to the top surface of the connecting bottom ring, the bottom surface of the support ring is fixedly provided with a support spring, the outside of the second-order ring is fixedly provided with an external locking block, and the inner wall of the second-order ring is provided with an interlaced sliding groove.

[0008] Furthermore, an insertion hole is provided at the center position of the circle of the covering top ring, a wrapping ring is fixedly provided at the insertion hole, a ring sliding groove is provided on the wrapping ring, a spiral protrusion is provided on the inner wall of the pushing gear ring, a bottom sliding ring is fixedly provided on the bottom surface of the pushing gear ring, and the bottom sliding ring slides in the ring sliding groove.

[0009] Preferably, the pulling component includes a pulling rod shaft, a pulling plate and a follower plate, the outer wall of the pulling rod shaft is provided with a spiral groove, the spiral groove is engaged with the spiral protrusion, the top of the pulling plate is fixedly connected to the lower end of the pulling rod shaft, the follower plate is fixedly connected to the pulling rod shaft, the follower plate is arranged above the pulling plate, and follower protrusions are fixedly provided at both ends of the follower plate, and the follower protrusions slide in the upper end sliding groove. The pushing gear ring proposed in the device of the present invention drags the pulling rod shaft upward during rotation, thereby forming a negative pressure environment under the pulling plate, thereby increasing the contact area between the powder needle and the mixed liquid, assisting the effective mixing of the powder needle and the mixed liquid, reducing the melting time of the powder needle, and improving the melting efficiency of the powder needle.

[0010] As a further preferred embodiment of the present invention, the mixed liquid pushing chamber includes a pushing chamber body, a pushing member and a driving member, the pushing member is inserted into the pushing chamber body, the driving member is fixedly connected to the top of the pushing chamber body, the top of the pushing chamber body is fixedly provided with a guide tube, the side of the pushing chamber body is provided with a side hole, the bottom surface of the pushing chamber body is fixedly provided with a bottom connecting tube, the bottom connecting tubes are provided with a plurality, and the plurality of bottom connecting tubes are distributed in a circular shape, the outer wall of the pushing chamber body is fixedly provided with an external placement ring, the external placement ring is provided with a placement slot, the placement slot is provided with an energized adsorption ring, and the number of the placement slots is the same as the number of powder The number of needle fusion devices and the number of bottom connecting tubes are consistent. The powder needle fusion device is placed in the placement slot. The side opening of the push chamber body proposed in the device of the present invention is used to insert the mixed liquid pumping pipe fitting. The end of the mixed liquid pumping pipe fitting is connected to the vertical pipe, and the mixed liquid is pumped to the bottom of the push plate through the one-way valve in the plate opening to ensure the one-way movement of the mixed liquid. When the push plate rises with the increase of the mixed liquid, the mixed liquid pumping pipe fitting is inserted and moved in the side holes to avoid the push plate and the inner wall of the push chamber cavity from squeezing the mixed liquid pumping pipe, affecting the pumping effect. Pumping the mixed liquid into the push chamber cavity is a conventional technical means, which will not be described in detail in this description.

[0011] Furthermore, the pushing component includes a pushing rod and a pushing plate, the pushing plate is fixedly connected to the bottom of the pushing rod, the pushing rod slides through the guide tube, a plate opening is penetrated on one side of the pushing plate, a one-way valve is fixedly provided in the plate opening, and a connecting vertical pipe is fixedly provided at the plate opening of the pushing plate. The driving component includes a driving motor, a driving central shaft and a driving gear, the driving central shaft is rotatably arranged in the driving motor, the driving central shaft is electrically connected to the driving motor, the driving gear is fixedly arranged outside the driving central shaft, and the gear teeth of the driving gear are meshed with the gear teeth of the pushing gear ring. The driving component and the energized adsorption ring proposed in the device of the present invention operate simultaneously when the device of the present invention is energized, and the energized adsorption ring ensures that the fusion cavity tube is locked, and the auxiliary fusion cavity tube forms a relatively fixed state with the external placement ring, stabilizes the powder needle fusion device, and ensures that the pulling component can operate and pull smoothly to achieve a negative pressure fusion effect.

[0012] Preferably, the interpenetrating connecting member includes an interpenetrating placement member and a connecting assembly, the interpenetrating placement member is placed in the second-order ring, the connecting assembly connects the bottom connecting tube and the second-order ring, the interpenetrating placement member includes an interpenetrating ring and a butt ring, the butt ring is fixedly connected to the bottom of the interpenetrating ring, the side of the interpenetrating ring is provided with liquid delivery ports in a circular array, the side of the bottom ring is fixedly provided with an interpenetrating sliding block, and the interpenetrating sliding block slides in the interpenetrating sliding groove.

[0013] As a further preferred embodiment of the present invention, the connecting assembly includes a connecting end and a connecting hose, one end of the connecting hose is fixedly connected to the connecting end, the other end of the connecting hose is interlaced and connected to the bottom connecting pipe, and the inner wall of the connecting end is fixedly provided with an inner wall clamping block.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: The pushing gear ring proposed in the device of the present invention drags the pull-out rod shaft upward during rotation, forming a negative pressure environment under the pull-out plate, increasing the contact area between the powder needle and the mixed liquid, assisting the effective mixing of the powder needle and the mixed liquid, reducing the melting time of the powder needle, and improving the melting efficiency of the powder needle.

[0015] (2) The side openings of the push chamber body proposed in the device of the present invention are used to insert the mixed liquid pumping pipe fittings. The ends of the mixed liquid pumping pipe fittings are connected to the vertical pipe. The mixed liquid is pumped to the bottom of the push plate through the one-way valve in the plate opening to ensure the one-way movement of the mixed liquid. When the push plate rises with the increase of the mixed liquid, the mixed liquid pumping pipe fittings are inserted and moved in the side holes to avoid the push plate and the inner wall of the push chamber from squeezing the mixed liquid pumping pipe and affecting the pumping effect. Pumping the mixed liquid into the push chamber is a conventional technical means, which will not be elaborated in this description.

[0016] (3) The driving component and the energized adsorption ring proposed in the device of the present invention operate simultaneously when the device of the present invention is energized. The energized adsorption ring ensures that the fusion cavity tube is locked, and the auxiliary fusion cavity tube and the external placement ring form a relatively fixed state, thereby stabilizing the powder needle fusion device and ensuring that the pulling component can operate smoothly to achieve a negative pressure fusion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side view of a drug delivery device for oncology provided by the present invention; Figure 2 for Figure 1 A cross-sectional view along the cutting line AA; Figure 3 for Figure 2 A cross-sectional view along the cutting line BB; Figure 4 for Figure 3 A cross-sectional view along the cutting line CC; Figure 5 The elevation of a drug delivery device for oncology proposed by the present invention Figure 1 ; Figure 6 The elevation of a drug delivery device for oncology proposed by the present invention Figure 2 ; Figure 7 for Figure 3 A partial enlarged view of point Ⅰ in the middle; Figure 8 for Figure 3 A partial enlarged view of the middle II; Fig. 9 for Figure 5 A partial enlarged view of the middle part III; Fig.10 for Figure 6 A partial enlarged view of point IV in the middle.

[0018] Among them, 1. powder needle fusion device, 2. mixed liquid pushing cavity, 3. interlaced connecting member, 4. fusion cavity member, 5. pulling member, 6. pushing cavity body, 7. pushing member, 8. driving member, 9. interlaced placement member, 10. connecting assembly, 11. fusion cavity tube, 12. connecting bottom ring, 13. covering top ring, 14. pushing gear ring, 15. upper end sliding groove, 16. external snap ring, 17. connecting hole, 18. first-order ring, 19. second-order ring, 20. supporting member, 21. supporting ring, 22. supporting cross bar, 23. supporting spring, 24. external snap block, 25. interlaced sliding groove, 26. interlaced hole, 27. wrapping ring, 28. ring Sliding groove, 29, spiral protrusion, 30, bottom sliding ring, 31, pull-out rod shaft, 32, pull-out plate, 33, follow-up plate, 34, spiral groove, 35, follow-up protrusion, 36, guide tube, 37, side hole, 38, bottom connecting tube, 39, external mounting ring, 40, mounting notch, 41, push rod, 42, push plate, 43, plate opening, 44, connecting vertical pipe, 45, one-way valve, 46, driving motor, 47, driving center shaft, 48, driving gear, 49, interlaced ring, 50, abutment ring, 51, liquid delivery port, 52, interlaced sliding block, 53, connecting end, 54, connecting hose, 55, inner wall clamping block, 56, powered adsorption ring.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1-Figure 10As shown, the present invention proposes an oncology drug delivery device, including a powder needle fusion device 1, a mixed liquid pushing chamber 2 and an interpenetrating connecting component 3, the interpenetrating connecting component 3 connects the powder needle fusion device 1 and the mixed liquid pushing chamber 2, the powder needle fusion device 1 is distributed in a circular array around the mixed liquid pushing chamber 2, the powder needle fusion device 1 includes a fusion chamber component 4 and a pulling component 5, and the pulling component 5 is interpenetrating in the fusion chamber component 4.

[0023] Among them, the powder needle fusion device 1 is provided with multiple groups and fixedly arranged in a circular array around the mixed liquid pushing chamber 2. The fusion chamber component 4 includes a fusion chamber tube 11, a connecting bottom ring 12, a covering top ring 13 and a pushing gear ring 14. The connecting bottom ring 12 is fixedly arranged at the bottom of the fusion chamber tube 11, and the covering top ring 13 is fixedly arranged at the top of the fusion chamber tube 11. An upper end sliding groove 15 is opened at the upper end of the inner wall of the fusion chamber tube 11, and an external clamping ring 16 is fixedly arranged on the outer wall of the fusion chamber tube 11. The pushing gear ring 14 is slidably arranged in the covering top ring 13.

[0024] A connecting hole 17 is opened at the center position of the connecting bottom ring 12, a first-order ring 18 is fixedly provided at the bottom of the connecting bottom ring 12, a second-order ring 19 is fixedly provided at the bottom of the first-order ring 18, the first-order ring 18 and the second-order ring 19 are arranged concentrically with the connecting bottom ring 12, and a supporting member 20 is fixedly provided on the top surface of the connecting bottom ring 12.

[0025] The support member 20 includes a support ring 21, a support cross bar 22 and a support spring 23. The support cross bar 22 is fixedly connected to both ends of the support ring 21. The bottom surface of the support cross bar 22 is fixedly connected to the top surface of the bottom ring 12. The bottom surface of the support ring 21 is fixedly provided with a support spring 23. The outside of the second-order ring 19 is fixedly provided with an external locking block 24. The inner wall of the second-order ring 19 is provided with an interlaced sliding groove 25.

[0026] An insertion hole 26 is provided at the center position of the circle covering the top ring 13, a wrapping ring 27 is fixedly provided at the insertion hole 26, a ring sliding groove 28 is provided on the wrapping ring 27, a spiral protrusion 29 is provided on the inner wall of the pushing gear ring 14, a bottom sliding ring 30 is fixedly provided on the bottom surface of the pushing gear ring 14, and the bottom sliding ring 30 slides in the ring sliding groove 28.

[0027] The pulling member 5 includes a pulling rod shaft 31, a pulling plate 32 and a follower plate 33. The outer wall of the pulling rod shaft 31 is provided with a spiral groove 34, and the spiral groove 34 is engaged with the spiral protrusion 29. The top of the pulling plate 32 is fixedly connected to the lower end of the pulling rod shaft 31. The follower plate 33 is fixedly connected to the pulling rod shaft 31. The follower plate 33 is arranged above the pulling plate 32. Follower protrusions 35 are fixedly provided at both ends of the follower plate 33, and the follower protrusions 35 slide in the upper end sliding groove 15.

[0028] The mixed liquid pushing chamber 2 includes a pushing chamber body 6, a pushing member 7 and a driving member 8. The pushing member 7 is inserted into the pushing chamber body 6. The driving member 8 is fixedly connected to the top of the pushing chamber body 6. A guide tube 36 is fixedly connected to the top of the pushing chamber body 6. A side hole 37 is opened on the side of the pushing chamber body 6. A bottom connecting tube 38 is fixedly connected to the bottom surface of the pushing chamber body 6. There are multiple bottom connecting tubes 38, and the multiple bottom connecting tubes 38 are distributed in a circular shape. An external placement ring 39 is fixedly connected to the outer wall of the pushing chamber body 6. A placement slot 40 is opened on the external placement ring 39. An energized adsorption ring 56 is arranged in the placement slot 40. The number of placement slots 40 is consistent with the number of powder needle fusion devices 1 and the number of bottom connecting tubes 38. The powder needle fusion device 1 is placed in the placement slot 40.

[0029] The pushing member 7 includes a pushing rod 41 and a pushing plate 42. The pushing plate 42 is fixedly connected to the bottom of the pushing rod 41. The pushing rod 41 slides in the guide tube 36. A plate opening 43 is penetrated on one side of the pushing plate 42. A one-way valve 45 is fixedly connected in the plate opening 43. A connecting vertical pipe 44 is fixedly connected at the plate opening 43 of the pushing plate 42. The driving member 8 includes a driving motor 46, a driving central shaft 47 and a driving gear 48. The driving central shaft 47 is rotatably arranged in the driving motor 46. The driving central shaft 47 is electrically connected to the driving motor 46. The driving gear 48 is fixedly connected to the outside of the driving central shaft 47. The gear teeth of the driving gear 48 are meshed with the gear teeth of the pushing gear ring 14.

[0030] The interpenetrating connecting member 3 includes an interpenetrating placement member 9 and a connecting assembly 10. The interpenetrating placement member 9 is placed in the second-order ring 19. The connecting assembly 10 connects the bottom connecting tube 38 and the second-order ring 19. The interpenetrating placement member 9 includes an interpenetrating ring 49 and a butt ring 50. The butt ring 50 is fixedly connected to the bottom of the interpenetrating ring 49. The side of the interpenetrating ring 49 is provided with liquid delivery ports 51 in a circular array. The side of the bottom ring is fixedly provided with an interpenetrating sliding block 52, and the interpenetrating sliding block 52 slides in the interpenetrating sliding groove 25.

[0031] The connection assembly 10 includes a connection end 53 and a connection hose 54, one end of the connection hose 54 is fixedly connected to the connection end 53, and the other end of the connection hose 54 is inserted and connected to the bottom connection pipe 38, and the inner wall of the connection end 53 is fixedly provided with an inner wall clamping block 55.

[0032] When in use, a suitable mixed liquid is selected, and the mixed liquid is pumped into the mixed liquid through the mixed liquid pumping device, and the mixed liquid is pumped into the push cavity 6 through the side hole 37 of the push cavity 6 and the one-way valve 45 at the plate opening 43 of the push plate 42. As the amount of mixed liquid increases, the push plate 42 moves upward, and the push rod 41 moves upward in the guide tube 36. After the mixed liquid is introduced, the operator presses the top of the push rod 41 to push the mixed liquid into the connecting hose 54. Invert the powder injection fusion device 1, fill the powder injection powder into the fusion cavity tube 11 through the second-order ring 19, and place the interlaced placement piece 9 in the second-order ring 19. The insertion sliding block 52 of the resisting ring 50 slides in the insertion sliding groove 25 of the second-order ring 19, inserts the fusion cavity tube 11 into the placement groove 40 of the external placement ring 39, inserts the corresponding connecting end 53 into and wraps the second-order ring 19, pushes the insertion placement member 9 to move upward in the second-order ring 19 until the liquid delivery port 51 of the insertion ring 49 is placed in the first-order ring 18, at this time, the top of the insertion ring 49 squeezes the support spring 23, and after the connecting end 53 completely wraps the second-order ring 19, the operator rotates it a certain angle, and the inner wall clamping block 55 is clamped on the top of the external clamping block 24, so as to realize the connection of the connecting assembly 10 to the bottom connecting tube 38 and the second-order ring 19. The powder needle fusion device 1 is arranged according to actual needs. After all are connected, the push rod 41 is pressed until the bottom of the push plate 42 fits the bottom of the push chamber 6, and the mixed liquid flows into the fusion chamber component 4 through the inserted connecting component 3. Because the pressure increases, the pulling component 5 moves upward, and the follower protrusions 35 on both sides of the follower plate 33 slide upward in the upper end sliding groove 15 of the fusion chamber tube 11. Since the spiral protrusion 29 is engaged with the spiral groove 34, as the pulling rod shaft 31 rises, the pushing gear ring 14 rotates, and the bottom sliding ring 30 slides in the ring sliding groove 28 of the wrapping ring 27, and the driving gear 48 meshing with the pushing gear ring 14 moves.

[0033] When the device is turned on, the driving component 8 and the energized adsorption ring 56 are turned on synchronously. The energized adsorption ring 56 adsorbs the fusion cavity tube 11 to ensure that the fusion cavity tube 11 is fixedly connected to the external placement ring 39. The driving component 8 is in operation, and the driving motor 46 starts to operate, driving the driving center shaft 47 to rotate, and the pushing gear ring 14 meshing with the driving gear 48 rotates, and the bottom sliding ring 30 slides in the ring sliding groove 28. With the rotation of the pushing gear ring 14, the pull-out rod shaft 31 rises, and the pull-out plate 32 moves up. Since the pushing plate 42 is placed at the bottom of the pushing cavity body 6, as the pull-out plate 32 rises, a negative pressure is formed in the space below the pull-out plate 32, thereby increasing the contact area between the powder injection powder and the mixed liquid, improving the fusion efficiency, and realizing the simultaneous and synchronous fusion of multiple powder injection powders.

[0034] After the fusion is completed, the driving motor 46 stops working, the pull-out plate 32 resets itself under the pressure, the pushing gear ring 14 rotates in the reverse direction, driving the driving gear 48 to rotate in the reverse direction, and the powder needle melting liquid is released by rotating the connecting end 53.

[0035] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A drug delivery device for oncology, characterized in that: The invention comprises a powder needle fusion device (1), a mixed liquid pushing chamber (2) and an interpenetrating connecting member (3), wherein the interpenetrating connecting member (3) connects the powder needle fusion device (1) and the mixed liquid pushing chamber (2), the powder needle fusion device (1) is distributed in a circular array around the mixed liquid pushing chamber (2), and the powder needle fusion device (1) comprises a fusion chamber member (4) and a pulling member (5), wherein the pulling member (5) is interpenetratingly arranged in the fusion chamber member (4).

2. The oncology drug delivery device according to claim 1, characterized in that: The powder needle fusion device (1) is fixedly arranged in a circular array around the mixed liquid pushing chamber (2); the fusion chamber component (4) comprises a fusion chamber tube (11), a connecting bottom ring (12), a covering top ring (13) and a pushing gear ring (14); the connecting bottom ring (12) is fixedly arranged at the bottom of the fusion chamber tube (11); the covering top ring (13) is fixedly arranged at the top of the fusion chamber tube (11); an upper end sliding groove (15) is provided at the upper end of the inner wall of the fusion chamber tube (11); an external clamping ring (16) is fixedly arranged on the outer wall of the fusion chamber tube (11); and the pushing gear ring (14) is slidably arranged in the covering top ring (13).

3. The oncology drug delivery device according to claim 2, characterized in that: A connecting hole (17) is provided at the center of the connecting bottom ring (12); a first-order ring (18) is fixedly provided at the bottom of the connecting bottom ring (12); a second-order ring (19) is fixedly provided at the bottom of the first-order ring (18); the first-order ring (18), the second-order ring (19) and the connecting bottom ring (12) are arranged concentrically; and a supporting member (20) is fixedly provided on the top surface of the connecting bottom ring (12).

4. The oncology drug delivery device according to claim 3, characterized in that: The support member (20) comprises a support ring (21), a support cross bar (22) and a support spring (23); the support cross bar (22) is fixedly connected to both ends of the support ring (21); the bottom surface of the support cross bar (22) is fixedly connected to the top surface of the bottom ring (12); the bottom surface of the support ring (21) is fixedly provided with a support spring (23); the outside of the second-order ring (19) is fixedly provided with an external snap-fit ​​block (24); and the inner wall of the second-order ring (19) is provided with an interlaced sliding groove (25).

5. The oncology drug delivery device according to claim 4, characterized in that: The center position of the circle of the covering top ring (13) is provided with an insertion hole (26), a wrapping ring (27) is fixedly provided at the insertion hole (26), a ring sliding groove (28) is provided on the wrapping ring (27), a spiral protrusion (29) is provided on the inner wall of the pushing gear ring (14), a bottom sliding ring (30) is fixedly provided on the bottom surface of the pushing gear ring (14), and the bottom sliding ring (30) slides in the ring sliding groove (28).

6. The oncology drug delivery device according to claim 5, characterized in that: The pulling member (5) comprises a pulling rod shaft (31), a pulling plate (32) and a follower plate (33); the outer wall of the pulling rod shaft (31) is provided with a spiral groove (34); the spiral groove (34) engages with the spiral protrusion (29); the top of the pulling plate (32) is fixedly connected to the lower end of the pulling rod shaft (31); the follower plate (33) is fixedly connected to the pulling rod shaft (31); the follower plate (33) is arranged above the pulling plate (32); and follower protrusions (35) are fixedly connected at both ends of the follower plate (33); the follower protrusions (35) slide in the upper end sliding grooves (15).

7. The oncology drug delivery device according to claim 6, characterized in that: The mixed liquid pushing chamber (2) comprises a pushing chamber body (6), a pushing member (7) and a driving member (8); the pushing member (7) is inserted into the pushing chamber body (6); the driving member (8) is fixedly connected to the top of the pushing chamber body (6); a guide tube (36) is fixedly connected to the top of the pushing chamber body (6); a side hole (37) is opened on the side of the pushing chamber body (6); a bottom connecting tube (38) is fixedly connected to the bottom surface of the pushing chamber body (6); and the bottom connecting tube (38) is fixedly connected to the bottom surface of the pushing chamber body (6). A plurality of connecting pipes (38) are provided, and the plurality of bottom connecting pipes (38) are distributed in a circular shape. An external placement ring (39) is fixedly provided on the outer wall of the pushing chamber body (6), and a placement slot (40) is provided on the external placement ring (39). An energized adsorption ring (56) is provided in the placement slot (40). The number of the placement slots (40) is consistent with the number of the powder needle fusion device (1) and the number of the bottom connecting pipes (38), and the powder needle fusion device (1) is placed in the placement slot (40).

8. The oncology drug delivery device according to claim 7, characterized in that: The pushing member (7) comprises a pushing rod (41) and a pushing plate (42), wherein the pushing plate (42) is fixedly arranged at the bottom of the pushing rod (41), the pushing rod (41) slides through the guide tube (36), a plate opening (43) is provided through one side of the pushing plate (42), a one-way valve (45) is fixedly arranged in the plate opening (43), and a connecting vertical pipe (44) is fixedly arranged at the plate opening (43) of the pushing plate (42), and the driving member (8) comprises a driving motor (46), a driving central shaft (47) and a driving gear (48), wherein the driving central shaft (47) is rotatably arranged in the driving motor (46), the driving central shaft (47) is electrically connected to the driving motor (46), and the driving gear (48) is fixedly arranged outside the driving central shaft (47), and the gear teeth of the driving gear (48) mesh with the gear teeth of the pushing gear ring (14).

9. The oncology drug delivery device according to claim 8, characterized in that: The interpenetrating connection member (3) comprises an interpenetrating placement member (9) and a connection assembly (10), wherein the interpenetrating placement member (9) is placed in a second-order ring (19), and the connection assembly (10) connects a bottom connection tube (38) and the second-order ring (19), wherein the interpenetrating placement member (9) comprises an interpenetrating ring (49) and a retaining ring (50), wherein the retaining ring (50) is fixedly arranged at the bottom of the interpenetrating ring (49), and a side surface of the interpenetrating ring (49) is provided with liquid delivery ports (51) distributed in a circumferential array, and an interpenetrating sliding block (52) is fixedly arranged on a side edge of the bottom ring, and the interpenetrating sliding block (52) slides in an interpenetrating sliding groove (25).

10. The oncology drug delivery device according to claim 9, characterized in that: The connection assembly (10) comprises a connection end (53) and a connection hose (54); one end of the connection hose (54) is fixedly connected to the connection end (53); the other end of the connection hose (54) is inserted and connected to the bottom connection pipe (38); and an inner wall locking block (55) is fixedly provided on the inner wall of the connection end (53).

Images