A multi-channel drug delivery device for ovarian cancer

Abstract

The present invention belongs to the technical field of drainage drug delivery devices, in particular to a multi-channel drug delivery device for ovarian cancer. Aiming at the problem in the prior art that multiple channels need to be opened to assist in the operation during surgery, resulting in an increase in the trauma on the patient's body surface, the following solution is now proposed. It includes a control handle frame with a box structure having a cavity inside and being vertically arranged as a whole. The control handle frame includes a C-shaped main frame with an opening facing the side. A U-shaped side guard plate is fixed at the opening of the C-shaped main frame. A round hole is opened at the bottom of the C-shaped main frame, and a stainless steel tube is inserted into the round hole. A steering joint is fixed at the bottom end of the stainless steel tube, and a sampling tube is movably connected to the bottom end of the stainless steel tube through the steering joint. The present invention can not only integrate the sampling mechanism and the drug delivery channel during surgery to reduce the number of incisions, but also quickly and accurately deliver drugs to the sampling position, and cooperate with the auxiliary drug delivery of other channels to improve the success rate of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage drug delivery devices, and in particular to a multi-channel drug delivery device for ovarian cancer. Background Art

[0002] The treatment methods for ovarian cancer usually depend on the type, stage, overall health status of the patient, and other individual factors; the treatment usually adopts a combination of multiple methods, including surgery, chemotherapy, targeted therapy, immunotherapy, etc.; among them, surgery is one of the main methods for treating ovarian cancer and is usually used for patients with early detection. The purpose of the surgery is to remove all tumor tissues as much as possible to reduce the risk of cancer recurrence.

[0003] After retrieval, current surgical treatments tend to be minimally invasive tumor removal, which requires the administration of drugs. The traditional method is to make one or more surgical holes in the abdomen to simultaneously perform surgery and drug administration; this will undoubtedly cause greater pain to the patient and difficulties in postoperative recovery and care. Therefore, we propose a new multi-channel drug delivery device that can administer drugs during surgery to reduce the basic trauma of the patient. Summary of the Invention

[0004] Aiming at the technical problem that multiple channels need to be opened to assist in surgery during the existing surgery, resulting in an increase in the trauma on the patient's body surface, the present invention adopts the following technical solutions:

[0005] A multi-channel drug delivery device for ovarian cancer, including a control handle frame with a cavity inside and a vertically integrated box structure, and the control handle frame includes a C-shaped main frame with an opening facing the side. A U-shaped side guard plate is fixed at the opening of the C-shaped main frame. A round hole is opened at the bottom of the C-shaped main frame, and a stainless steel pipe is inserted into the round hole. A steering joint is fixed at the bottom end of the stainless steel pipe, and the bottom end of the stainless steel pipe is movably connected to a sampling tube through the steering joint. The overall shape of the sampling tube is a barrel structure with an opening facing upward, and an inclined section is reserved at the bottom of the sampling tube, and liquid leakage holes are opened on the inclined section; a drug delivery mechanism is arranged on the rear inner wall of the U-shaped side guard plate near the top, and the drug delivery mechanism includes a piston pump barrel, and a one-way water outlet valve is reserved at the bottom of the piston pump barrel. The bottom end of the one-way water outlet valve is communicated with a drug delivery hose, and the bottom end of the drug delivery hose is sleeved with a drug delivery tube that extends to the liquid leakage hole; a rectangular notch is opened on the circumferential outer wall of the sampling tube near the bottom end, and an arc-shaped blade is fixed on the inner wall of the lower opening of the rectangular notch. A sampling mechanism adapted to the arc-shaped blade is arranged on the inner wall of the sampling tube near the rectangular notch; the sampling mechanism includes a sliding gate knife slidably connected above the arc-shaped blade.

[0006] Preferably, the steering joint includes an axle fixing block fixed on the circumferential inner wall of the stainless steel tube near the bottom end, and a horizontal axis extending horizontally forward and backward is fixed in the middle of the axle fixing block near the bottom end, an H-shaped joint is rotatably connected to the horizontal shaft, and the bottom end of the H-shaped joint is plugged and fixed to the top inner wall of the sampling tube; a locking ring with a hole center line parallel to the axial center line of the sampling tube is reserved on the side of the H-shaped joint, and an electrically controlled locating pin is fixed on the side of the axle fixing block, and the top diameter and extension distance of the output shaft of the electrically controlled locating pin are adapted to the locking ring.

[0007] Preferably, a strip frame is fixed to the side of the H-shaped joint away from the locking ring, and a strip sliding hole is reserved in the middle of the strip frame, the direction of the strip sliding hole is perpendicular to the axis center line of the horizontal axis, a sliding bearing is fixed to the circumferential inner wall of the stainless steel tube near the bottom end, and a guide plate adapted to the inner hole of the sliding bearing is fixed to the bottom inner wall of the C-shaped main frame near the circular hole, a vertical steering lever is slidably connected between the guide plate and the sliding bearing, and a toggle rod horizontally extending into the strip sliding hole is fixed to the bottom end of the steering lever; a spring baffle is fixed to the circumferential outer wall of the toggle rod near the top end, and a compression spring is fixed between the lower surface of the spring baffle and the upper surface of the guide plate; by providing the steering lever and the strip frame, when it is necessary to control the movement of the sampling tube around the steering joint during use, it is only necessary to control the steering lever to be pushed axially downward.

[0008] Preferably, a guide tube extending horizontally inward is embedded on the back side of the U-shaped side guard plate near the bottom end, and a pressing block is slidably connected in the guide tube. A triangular push plate with a right-angled triangle structure on the front is fixed to the side of the pressing block close to the inside of the control handle frame, and the hypotenuse of the triangular push plate is in contact with the top of the steering rod; by providing the triangular push plate and the protruding pressing block, when controlling the steering of the sampling tube, it is only necessary to pinch the pressing block with the little finger and ring finger.

[0009] Preferably, a wear-resistant ball is fixed to the top end of the steering rod, which can reduce the friction resistance between the steering rod and the triangular push plate.

[0010] Preferably, a piston disk is slidably connected in the piston pump barrel, and a push rod extending vertically upward is fixed to the top of the piston disk, and a dome pressure block is fixed to the top of the push rod through the top of the C-shaped main frame, and a return spring is arranged between the lower surface of the dome pressure block and the top of the C-shaped main frame; a one-way water inlet pipe is fixed to the circumferential outer wall of the piston pump barrel near the bottom end, and a liquid inlet interface is embedded in the side of the C-shaped main frame near the top end, and a connecting pipe is fixed between the liquid inlet interface and the water inlet of the one-way water inlet pipe.

[0011] Preferably, a fixed clamping plate is fixed on the vertical side wall of the U-shaped side guard plate, and an arc-shaped clamping groove adapted to the outer diameter of the piston pump barrel is formed at the end of the fixed clamping plate; it can ensure that the piston disc can still move up and down vertically after sliding up and down multiple times, preventing liquid leakage from the edge of the piston disc.

[0012] Preferably, the sampling mechanism further includes two symmetrically arranged groove-shaped limiting rail grooves fixed on the inner wall of the sampling tube. The sliding knife gate is slidably connected between the two groove-shaped limiting rail grooves, and a vertical L-shaped pull rod is fixed near the top of the inner arc side of the sliding knife gate. A tension spring is fixed between the top of the L-shaped pull rod and the lower surface of the middle plate of the H-shaped joint; a second fixed pulley frame extending downward below the L-shaped pull rod is fixed on the circumferential inner wall of the sampling tube near the bottom end of the L-shaped pull rod. A first fixed pulley is arranged at one end of the second fixed pulley frame away from the inner wall of the sampling tube, and a pull rope is fixed at the top of the L-shaped pull rod. The pull rope bypasses the first fixed pulley and then passes upward through the stainless steel tube to fix a rope pressing mechanism.

[0013] Preferably, the rope pressing mechanism includes a first pulley frame fixed at the orifice of the round hole, and a first deflecting wheel is arranged in the first pulley frame. A second guiding tube extending inward is embedded near the top of the side of the U-shaped side guard plate away from the opening. A second pressing block is slidably connected in the second guiding tube, and a horizontally extending pressing rod is fixed at the end of the second pressing block near the inside. A groove with a downward opening is formed at the end of the pressing rod away from the second pressing block. A cross beam plate is fixed between the two side plates of the U-shaped side guard plate, and the cross beam plate is located below the pressing rod. A third pulley frame extending into the groove is fixed on the upper surface of the cross beam plate, and a second deflecting wheel is fixed in the third pulley frame; the pull rope is respectively wound around the first deflecting wheel and the second deflecting wheel in a Z shape and fixed at the end of the pressing rod; a second return spring is fixed on one side of the third pulley frame close to the second pressing block. When it is necessary to pull the pull rope, just hold the control handle frame with the hand and pinch the second pressing block with the index finger.

[0014] Preferably, a guiding sliding ring is fixed near the top of the inner arc side of the second fixed pulley frame, and the guiding sliding ring is used to fix the drug delivery tube.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By providing the piston pump barrel and the sampling mechanism, not only can the sampling mechanism and the drug delivery channel be integrated during the operation to reduce the number of incisions, but also the sampling position can be accurately administered quickly, and the success rate of the operation can be improved by cooperating with the auxiliary drug delivery of other channels.

[0017] 2. By providing the locking ring and the electric control positioning pin, when the sampling tube does not need to be rotated, only need to control the pin shaft of the electric control positioning pin to be directly inserted into the locking ring, and cooperate with the shaft rod fixing block and the H-shaped joint hinged together to keep the relative static state of the stainless steel tube and the sampling tube.

[0018] 3. By providing a piston pump barrel and a liquid inlet interface, during use, when medication administration is required, simply connect the liquid medicine tube to the liquid inlet interface. Then, when medication administration is needed, continuously press the dome-shaped pressing block with the thumb.

[0019] 4. By providing an L-shaped pull rod and a pull rope, when sampling or tumor resection is needed, simply place the space formed between the top of the arc-shaped blade and the sliding knife gate over the sampling body. Then, pull the pull rope upward to cut off the target sampling body, which will be retained in the sampling tube without affecting the simultaneous administration of medicine to the cut site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the semi-sectional three-dimensional structure of the control handle frame in the present invention;

[0022] Figure 3 It is a schematic diagram of the overall sectional structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the steering mechanism in the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the sampling mechanism in the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of the medication administration mechanism in the present invention;

[0026] Figure 7 It is an exploded structure diagram of the steering joint in the present invention;

[0027] Figure 8 It is a three-dimensional structure diagram of the fixed pulley frame in the present invention.

[0028] In the figure: 1. C-shaped main frame; 2. U-shaped side guard plate; 201. Cross beam plate; 3. Drug delivery hose; 301. Drug delivery tube; 4. Sampling tube; 5. Rectangular notch; 6. Inclined cutting surface; 7. Arc-shaped blade; 8. Sliding knife gate; 9. H-shaped joint; 901. Strip-shaped frame; 902. Locking ring; 903. Electrically controlled positioning pin; 10. Shaft rod fixing block; 11. Stainless steel tube; 12. First pressing block; 13. Second pressing block; 14. Second guiding tube; 141. First guiding tube; 15. First return spring; 16. Thrust rod; 17. Liquid inlet interface; 18. Pressing rod; 19. Piston pump barrel; 20. Triangular push plate; 21. Steering pressing rod; 22. Guide plate; 23. First pulley frame; 24. Pulling rope; 25. Spring; 26. L-shaped pull rod; 27. First fixed pulley; 28. Second fixed pulley frame; 2801. Guiding sliding ring; 29. Unidirectional water inlet pipe; 30. Third pulley frame; 31. Second return spring. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.

[0030] Referring to Figure 1-8 , a multi-channel drug delivery device for ovarian cancer, including a control handle frame with a vertically arranged box structure with an internal cavity, the overall outer diameter and length of which are suitable for holding by hand, and the control handle frame includes a C-shaped main frame 1 with an opening facing the side. The C-shaped main frame 1 is vertically arranged with an opening facing the side. A U-shaped side guard plate 2 opposite to the opening direction of the C-shaped main frame 1 is fixed at the opening of the C-shaped main frame 1. A round hole is opened at the bottom of the C-shaped main frame 1, and a stainless steel tube 11 is inserted into the round hole. A steering joint is fixed at the bottom end of the stainless steel tube 11, and the bottom end of the stainless steel tube 11 is movably connected with a sampling tube 4 through the steering joint. The overall shape of the sampling tube 4 is a barrel-shaped structure with an opening facing upward, and an inclined cutting surface 6 is reserved at the bottom of the sampling tube 4. Leakage holes are opened on the inclined cutting surface 6; A drug delivery mechanism is arranged on the rear inner wall of the U-shaped side guard plate 2 near the top, and the drug delivery mechanism includes a piston pump barrel 19, and a one-way water outlet valve is reserved at the bottom of the piston pump barrel 19. The bottom end of the one-way water outlet valve is communicated with a drug delivery hose 3, and the bottom end of the drug delivery hose 3 is sleeved with a drug delivery tube 301 extending to the leakage hole; A rectangular notch 5 is opened on the circumferential outer wall of the sampling tube 4 near the bottom end, and an arc-shaped blade 7 is fixed on the inner wall of the lower opening of the rectangular notch 5. A sampling mechanism adapted to the arc-shaped blade 7 is arranged on the inner wall of the sampling tube 4 near the rectangular notch 5; The sampling mechanism includes a sliding knife gate 8 slidably connected above the arc-shaped blade 7; By arranging the piston pump barrel 19 and the sampling mechanism, not only can the sampling mechanism and the drug delivery channel be integrated during the operation to reduce the number of incisions, but also the drug can be accurately delivered to the sampling position quickly, and the success rate of the operation can be improved by cooperating with the auxiliary drug delivery of other channels.

[0031] Referring to Figure 4 and Figure 7 , the steering joint includes a shaft fixing block 10 fixed to the inner wall of the circumference of the stainless steel pipe 11 near the bottom end, and a horizontal shaft extending forward and backward is fixed near the bottom end in the middle of the shaft fixing block 10. An H-shaped joint 9 is rotatably connected to the horizontal shaft, and the bottom end of the H-shaped joint 9 is inserted and fixed to the inner wall of the top end of the sampling pipe 4; a locking ring 902 with a hole center line parallel to the axis of the sampling pipe 4 is reserved on the side of the H-shaped joint 9, and an electric control positioning pin 903 is fixed to the side of the shaft fixing block 10. The diameter and the protruding distance of the top end of the output shaft of the electric control positioning pin 903 are adapted to the locking ring 902; through the arranged locking ring 902 and the electric control positioning pin 903, when it is not necessary to rotate the sampling pipe 4, only need to control the pin shaft of the electric control positioning pin 903 to be directly inserted into the locking ring 902, and the relative static state of the stainless steel pipe 11 and the sampling pipe 4 can be maintained by cooperating with the shaft fixing block 10 and the H-shaped joint 9 hinged together.

[0032] Referring to Figure 4 and Figure 7 , a strip-shaped frame 901 is fixed to the side of the H-shaped joint 9 away from the locking ring 902, and a strip-shaped sliding hole is reserved in the middle of the strip-shaped frame 901. The direction of the strip-shaped sliding hole is perpendicular to the axis of the horizontal shaft. A sliding bearing is fixed to the inner wall of the circumference of the stainless steel pipe 11 near the bottom end, and a guide plate 22 adapted to the inner hole of the sliding bearing is fixed to the inner wall of the bottom of the C-shaped main frame 1 near the round hole. A same vertical steering resisting rod 21 is slidably connected between the guide plate 22 and the sliding bearing, and a toggle rod horizontally extending into the strip-shaped sliding hole is fixed to the bottom end of the steering resisting rod 21; a spring baffle is fixed to the outer wall of the circumference of the toggle rod near the top end, and a compression spring is fixed between the lower surface of the spring baffle and the upper surface of the guide plate 22; through the arranged steering resisting rod 21 and the strip-shaped frame 901, when it is necessary to control the sampling pipe 4 to move around the steering joint during use, only need to control the steering resisting rod 21 to axially push downward.

[0033] Referring to Figure 2 and Figure 4 , a guide pipe 141 extending horizontally inward is embedded at the back of the U-shaped side guard plate 2 near the bottom end, and a pressing block 12 is slidably connected in the guide pipe 141. A triangular push plate 20 with a right-angled triangle structure on the front is fixed to the side of the pressing block 12 close to the inside of the control handle frame, and the hypotenuse of the triangular push plate 20 contacts the top end of the steering resisting rod 21; through the arranged triangular push plate 20 and the protruding pressing block 12, when controlling the steering of the sampling pipe 4, only need to pinch the pressing block 12 with the little finger and the ring finger.

[0034] In the present invention, a wear-resistant resisting ball is fixed to the top end of the steering resisting rod 21, which can reduce the frictional resistance between the steering resisting rod and the triangular push plate 20.

[0035] Reference Figure 3 , a piston disk is slidably connected in the piston pump barrel 19, and a push rod 16 extending vertically upward is fixed to the top end of the piston disk. The top end of the push rod 16 passes through the top end of the C-shaped main frame 1 and is fixed with a dome-shaped pressing block. A first return spring 15 is arranged between the lower surface of the dome-shaped pressing block and the top end of the C-shaped main frame 1; a one-way water inlet pipe 29 is fixed to the outer circumferential wall of the piston pump barrel 19 near the bottom end, and a liquid inlet interface 17 is embedded in the side surface of the C-shaped main frame 1 near the top end. A communicating pipe is fixed between the liquid inlet interface 17 and the water inlet of the one-way water inlet pipe 29. By providing the piston pump barrel 19 and the liquid inlet interface 17, when in use, when medicine needs to be administered, only the medicine liquid pipe needs to be connected to the liquid inlet interface 17. Then, when medicine needs to be administered, only the dome-shaped pressing block needs to be continuously pressed with the thumb.

[0036] Wherein, a fixed clamping plate is fixed to the vertical side wall of the U-shaped side guard plate 2, and an arc-shaped clamping groove adapted to the outer diameter of the piston pump barrel 19 is opened at the end of the fixed clamping plate; it can ensure that the piston disk can still move vertically up and down after sliding up and down multiple times, preventing liquid leakage from the edge of the piston disk.

[0037] Reference Figure 3 、 Figure 5 and Figure 8 , the sampling mechanism further includes two symmetrically arranged groove-shaped limiting rail grooves fixed to the inner wall of the sampling pipe 4. The sliding knife gate 8 is slidably connected between the two groove-shaped limiting rail grooves. A vertical L-shaped pull rod 26 is fixed to the inner arc side of the sliding knife gate 8 near the top end, and a tension spring 25 is fixed between the top end of the L-shaped pull rod 26 and the lower surface of the middle plate of the H-shaped joint 9; a second fixed pulley frame 28 extending downward toward the L-shaped pull rod 26 is fixed to the inner circumferential wall of the sampling pipe 4 near the bottom end of the L-shaped pull rod 26. A first fixed pulley 27 is arranged at the end of the second fixed pulley frame 28 away from the inner wall of the sampling pipe 4, and a pull rope 24 is fixed to the top end of the L-shaped pull rod 26. The pull rope 24 bypasses the first fixed pulley 27 and then passes upward through the stainless steel pipe 11 and is fixed with a rope pressing mechanism; by providing the L-shaped pull rod 26 and the pull rope 24, when sampling or cutting a tumor, only the space formed between the top end of the arc-shaped blade 7 and the sliding knife gate 8 needs to be sleeved on the sampling body, and then the pull rope 24 is pulled upward to cut off the target sampling body and retain it in the sampling pipe 4, without affecting the administration of medicine to the cutting site at the same time.

[0038] Reference Figure 3 and Figure 5, the rope pressing mechanism includes a pulley frame 1 23 fixed at the orifice of the round hole, and a deflecting wheel 1 is arranged in the pulley frame 1 23. On the side of the U-shaped side guard plate 2 far from the opening and near the top, a guiding tube 2 14 extending inward is embedded. A pressing block 2 13 is slidably connected in the guiding tube 2 14. One end of the pressing block 2 13 near the interior is fixed with a horizontally extending pressing rod 18. A groove with a downward opening is formed at the end of the pressing rod 18 far from the pressing block 2 13. A cross beam plate 201 is fixed between the two side plates of the U-shaped side guard plate 2, and the cross beam plate 201 is located below the pressing rod 18. A pulley frame 3 30 extending into the groove is fixed on the upper surface of the cross beam plate 201, and a deflecting wheel 2 is fixed in the pulley frame 3 30. The pulling rope 24 is respectively wound around the deflecting wheel 1 and the deflecting wheel 2 in a Z shape and fixed at the end of the pressing rod 18. A return spring 2 31 is fixed on the side of the pulley frame 3 30 close to the pressing block 2 13. When it is necessary to pull the pulling rope 24, just hold the control handle frame with the hand and pinch the pressing block 2 13 with the index finger.

[0039] Refer to Figure 3 and Figure 8 , on the inner arc side of the fixed pulley frame 2 28 near the top, a guiding sliding ring 2801 is fixed, and the guiding sliding ring 2801 is used to fix the medicine delivery tube 301.

[0040] Working principle: Before using this device, first ensure that the sampling tube 4 and the stainless steel tube 11 are in a straight line, and ensure that the pin shaft of the electric control positioning pin 903 is inserted into the locking ring 902 to ensure that the sampling tube 4 does not shake when inserted, so as to quickly and accurately reach the sampling or medicine delivery position. When the rectangular notch 5 is close to the surface of the sampling body, then control the sampling tube 4 to turn to buckle the target sampling body. At this time, just pinch the pressing block 1 12 with the little finger and the ring finger to rotate the sampling tube 4 through the triangular push plate 20 and then press it against the sampling body. After that, pull the pulling rope 24 upward to cut off the target sampling body and retain it in the sampling tube 4, without affecting the simultaneous medicine delivery to the cutting area. When pulling the pulling rope 24, just hold the control handle frame with the hand and pinch the pressing block 2 13 with the index finger to control the start of the rope pressing mechanism. After that, just connect the liquid medicine tube to the liquid inlet interface 17. After that, when it is necessary to deliver medicine, just continuously press the dome pressing block with the thumb.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A multi-channel drug delivery device for ovarian cancer, comprising a control handle frame with a cavity inside and a vertical box structure as a whole, and the control handle frame comprises a C-shaped main frame (1) with an opening facing the side, and a U-shaped side guard plate (2) is fixed at the opening of the C-shaped main frame (1), characterized in that: The bottom of the C-shaped main frame (1) is provided with a circular hole, and a stainless steel tube (11) is inserted into the circular hole. A steering joint is fixed to the bottom end of the stainless steel tube (11), and a sampling tube (4) is movably connected to the bottom end of the stainless steel tube (11) through the steering joint. The sampling tube (4) is in the form of a barrel with an opening facing upward, and a beveled surface (6) is reserved at the bottom of the sampling tube (4), and a liquid leakage hole is provided on the beveled surface (6). A drug delivery mechanism is arranged on the inner wall of the rear side of the U-shaped side guard plate (2) near the top end, and the drug delivery mechanism comprises a piston pump barrel (19), and the piston pump A one-way water outlet valve is reserved at the bottom of the barrel (19), and the bottom end of the one-way water outlet valve is connected to a drug delivery hose (3), and the bottom end of the drug delivery hose (3) is sleeved with a drug delivery tube (301) that penetrates into the leakage hole; a rectangular notch (5) is opened near the bottom end of the circumferential outer wall of the sampling tube (4), and an arc-shaped blade (7) is fixed to the inner wall of the lower opening of the rectangular notch (5); and a sampling mechanism that matches the arc-shaped blade (7) is provided on the inner wall of the sampling tube (4) near the rectangular notch (5); the sampling mechanism comprises a sliding gate knife (8) that is slidably connected to the top of the arc-shaped blade (7); The steering joint comprises a shaft fixing block (10) fixed on the inner wall of the stainless steel tube (11) near the bottom end, and a horizontal axis extending forward and backward is fixed in the middle of the shaft fixing block (10) near the bottom end, and an H-shaped joint (9) is rotatably connected to the horizontal axis, and the bottom end of the H-shaped joint (9) is plugged and fixed to the inner wall of the top end of the sampling tube (4); a locking ring (902) with a hole center line parallel to the axis center line of the sampling tube (4) is reserved on the side of the H-shaped joint (9), and an electric control positioning pin (903) is fixed on the side of the shaft fixing block (10), and the top diameter and extension distance of the output shaft of the electric control positioning pin (903) are compatible with the locking ring (902).

2. The multi-channel drug delivery device for ovarian cancer according to claim 1, characterized in that: A strip frame (901) is fixed to the side of the H-shaped joint (9) away from the locking ring (902), and a strip sliding hole is reserved in the middle of the strip frame (901), the direction of the strip sliding hole is perpendicular to the axis of the horizontal axis, a sliding bearing is fixed to the circumferential inner wall of the stainless steel tube (11) near the bottom end, and a guide plate (22) adapted to the inner hole of the sliding bearing is fixed to the bottom inner wall of the C-shaped main frame (1) near the circular hole, a vertical steering lever (21) is slidably connected between the guide plate (22) and the sliding bearing, and a toggle rod extending horizontally into the strip sliding hole is fixed to the bottom end of the steering lever (21); a spring baffle is fixed to the circumferential outer wall of the toggle rod near the top end, and a compression spring is fixed between the lower surface of the spring baffle and the upper surface of the guide plate (22).

3. The multi-channel drug delivery device for ovarian cancer according to claim 2, characterized in that: A guide tube (141) extending horizontally inward is embedded near the bottom end of the back side of the U-shaped side guard plate (2), and a pressing block (12) is slidably connected in the guide tube (141). A triangular push plate (20) having a right-angled triangle structure on the front side is fixed to the side of the pressing block (12) close to the inside of the control handle frame, and the hypotenuse of the triangular push plate (20) contacts the top end of the steering lever (21).

4. The multi-channel drug delivery device for ovarian cancer according to claim 3, characterized in that: A wear-resistant ball is fixed to the top end of the steering rod (21).

5. The multi-channel drug delivery device for ovarian cancer according to claim 1, characterized in that: A piston disc is slidably connected in the piston pump barrel (19), and a push rod (16) extending vertically upward is fixed to the top of the piston disc, and a dome pressure block is fixed to the top of the push rod (16), and a return spring (15) is arranged between the lower surface of the dome pressure block and the top of the C-shaped main frame (1); a one-way water inlet pipe (29) is fixed to the circumferential outer wall of the piston pump barrel (19) near the bottom end, and a liquid inlet interface (17) is embedded in the side of the C-shaped main frame (1) near the top end, and a connecting pipe is fixed between the liquid inlet interface (17) and the water inlet of the one-way water inlet pipe (29).

6. The multi-channel drug delivery device for ovarian cancer according to claim 5, characterized in that: A fixed clamping plate is fixed to the vertical side wall of the U-shaped side guard plate (2), and an arc-shaped clamping groove matching the outer diameter of the piston pump barrel (19) is formed at the end of the fixed clamping plate.

7. The multi-channel drug delivery device for ovarian cancer according to claim 1, characterized in that: The sampling mechanism further comprises two mutually symmetrical groove-shaped limit rail grooves fixed on the inner wall of the sampling tube (4), the sliding knife (8) being slidably connected between the two groove-shaped limit rail grooves, and a vertical L-shaped pull rod (26) being fixed near the top end of the inner arc side of the sliding knife (8), and a tension spring (25) being fixed between the top end of the L-shaped pull rod (26) and the lower surface of the middle plate of the H-shaped joint (9); a second fixed pulley frame (28) extending toward the bottom of the L-shaped pull rod (26) is fixed to the circumferential inner wall of the sampling tube (4) near the bottom end of the L-shaped pull rod (26), and a first fixed pulley (27) is provided at one end of the second fixed pulley frame (28) away from the inner wall of the sampling tube (4), and a pull rope (24) is fixed to the top end of the L-shaped pull rod (26), and the pull rope (24) passes around the first fixed pulley (27) and upwards through the stainless steel pipe (11) and is fixed with a rope pressing mechanism.

8. The multi-channel drug delivery device for ovarian cancer according to claim 7, characterized in that: The rope pressing mechanism comprises a pulley frame (23) fixed at the opening of the circular hole, and a direction-changing wheel (23) is arranged in the pulley frame (23), a guide tube (14) extending inwardly is embedded near the top end of the U-shaped side guard plate (2) away from the opening, and a pressing block (13) is slidably connected in the guide tube (14), and a horizontally extending pressure rod (18) is fixed at one end of the pressing block (13) close to the inside, and a groove opening downward is opened at one end of the pressure rod (18) away from the pressing block (13), A crossbeam plate (201) is fixed between the two side plates of the U-shaped side guard plate (2), and the crossbeam plate (201) is located below the pressure rod (18). A pulley frame 3 (30) extending into the groove is fixed on the upper surface of the crossbeam plate (201), and a change-of-direction wheel 2 is fixed in the pulley frame 3 (30); a pull rope (24) is Z-shaped and passes around the change-of-direction wheel 1 and the change-of-direction wheel 2 and is fixed to the end of the pressure rod (18); and a return spring 2 (31) is fixed on the side of the pulley frame 3 (30) close to the pressing block 2 (13).

9. The multi-channel drug delivery device for ovarian cancer according to claim 7, characterized in that: A guide slip ring (2801) is fixed on the inner arc side of the second fixed pulley frame (28) near the top end, and the guide slip ring (2801) is used to fix the drug delivery tube (301).

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