CN117224826A - Abdominal cavity hot perfusion chemotherapy device - Google Patents

Abstract

The invention discloses an abdominal cavity hot-filling chemotherapy device, which belongs to the technical field of medical appliances and comprises a frame, wherein an object placing track for hanging medicines is arranged at the inner top of the frame, a conveying pump is arranged in the frame, a liquid inlet end and a liquid outlet end of the conveying pump are respectively provided with connecting pipes, the conveying pump is respectively communicated with a needle seat and a rotary table through the connecting pipes and is rotationally connected with a collecting rack, the collecting rack is communicated with and is provided with an output pipe in a winding way, the collecting rack is rotationally connected with a water tank, a heating element is fixedly connected in the water tank, the end part of the collecting rack is fixedly connected with a transmission screw, the transmission screw is in threaded connection with a sliding seat, the sliding seat is in sliding connection with a sliding rod, the outer side of the water tank is fixedly connected with a bracket, the resistor is in sliding connection with an adjusting element fixedly connected with the sliding seat, and a recovery box and a liquid guide frame are arranged in the frame; the temperature of the liquid medicine can be automatically adjusted according to the length of the pipeline, so that the temperature of the liquid medicine entering the human body can be ensured to be capable of eliminating germs and avoiding scalding the human body.

Description

Abdominal cavity hot perfusion chemotherapy device

Technical Field

The invention relates to the technical field of medical equipment, in particular to an abdominal cavity thermal perfusion chemotherapy device.

Background

The abdominal cavity chemotherapy is one of the chemotherapy methods, and is mainly to pour the chemotherapy medicine into the abdominal cavity to make the chemotherapy medicine reach a certain concentration, thus playing the role of anticancer. In clinic, the perfusion liquid at about 45 ℃ and the chemotherapeutic drugs are mainly perfused into the abdominal cavity, and the sensitivity of tumor cells is enhanced by utilizing the killing effect of the warming effect of the perfusion liquid on the tumors and the synergistic effect of the warming effect and the chemotherapeutic drugs, so that the rapid apoptosis of the tumors is promoted, and finally, the purpose of preventing and treating the tumor cell abdominal metastasis is achieved.

The optimal temperature of abdominal cavity chemotherapy is 43 ℃, so that the medicine is heated to 45 ℃ because the medicine has partial heat consumption in the pipeline, but the length of the pipeline is inconsistent in the actual use process, for example, factors such as the size of a patient, the size and the height of a sickbed can influence the length of an infusion tube, the pipeline is overlong and is easy to miss, secondary injury is caused to the patient due to the falling of the infusion tube, the pipeline is too short, the movement of the patient is limited, and the infusion tube is easy to pull; the length of the pipeline is uncertain, so that the heat consumed by the medicine in the pipeline cannot be determined, the longer the pipeline is, the lower the temperature of the medicine in the abdominal cavity is, the treatment effect is affected when the temperature of the medicine is lower than 43 ℃, and otherwise, the human body can feel strong discomfort when the temperature is higher than 43 ℃.

Accordingly, there is a need for an intraperitoneal thermal infusion chemotherapy device that can vary the temperature of the drug in response to changes in the length of the infusion tube.

Disclosure of Invention

The invention aims to provide an abdominal cavity thermal perfusion chemotherapy device which can automatically adjust the temperature of liquid medicine according to the length of a pipeline used, ensure that the temperature of the liquid medicine entering a human body can kill germs and avoid scalding the human body.

In order to achieve the above purpose, the present invention provides the following technical solutions: the device comprises a frame, the top is provided with the thing track that puts that is used for hanging the medicine in the frame, install the delivery pump in the frame, the connecting pipe is all installed to delivery pump feed liquor end and play liquid end, just the delivery pump has needle file and carousel through the connecting pipe intercommunication respectively the carousel rotates and is connected with the receiving rack, the receiving rack intercommunication just is equipped with the output tube around, the receiving rack rotates and is connected with the water tank, fixedly connected with heating piece in the water tank, receiving rack end fixedly connected with drive screw, drive screw threaded connection has the slide, slide sliding connection has the slide bar, water tank outside fixedly connected with support, support fixedly connected with resistor, resistor sliding connection has and slide fixedly connected with regulating part, install recovery tank and drain frame in the frame, drain frame installs the feed back pipe.

As a further scheme of the invention, the conveying pump comprises a shell, a limiting frame is connected in a sliding manner in the shell, a rotating shaft is connected in a rotating manner in the shell, the rotating shaft is fixedly connected with a rotating frame, the end part of the rotating frame is rotatably connected with a pressing wheel, a conveying pipe is arranged between the pressing wheel and the limiting frame, and two ends of the conveying pipe are fixedly connected with lower limiting rings which are connected with the shell in a sliding manner.

As a further scheme of the invention, connectors fixedly connected with connecting pipes are inserted into the lower limiting rings, the end parts of the connecting pipes are fixedly connected with upper limiting rings, the tops of the limiting frames are fixedly connected with buckles for pressing the upper limiting rings, and reset springs are fixedly connected between the limiting frames and the outer shell.

As a further scheme of the invention, the end part of the rotating shaft is fixedly connected with a driving cam, the driving cam is meshed with a transmission shaft, the transmission shaft is meshed with a driven cam, the driven cam is coaxially and fixedly connected with a fixed shaft, the fixed shaft is coaxially and rotatably connected with a plurality of digital wheels which are arranged in a linear array, one side of each digital wheel is fixedly connected with a limiting nail, the other side of each digital wheel and the driven cam are both eccentrically and fixedly connected with driving nails, and the limiting nails are meshed with transmission gears.

As a further scheme of the invention, the needle stand comprises a base fixedly connected with the frame, both ends of the base are fixedly connected with limit screws, the limit screws are fixedly connected with pressing plates through nuts, and rubber gaskets are arranged between the pressing plates and the base.

As a further scheme of the invention, the top of the storage rail is fixedly connected with a fixing bolt, the fixing bolt is in threaded connection with a fixing nut, the top of the frame is provided with a sliding groove which is in sliding connection with the fixing bolt, and the bottom of the storage rail is in sliding connection with a hook.

As a further scheme of the invention, the top of the recovery box is slidably connected with a baffle plate with an L-shaped structure, a yielding spring is fixedly connected between the baffle plate and the recovery box, and the recovery box and the liquid guide frame are provided with feed grooves matched with the baffle plate.

As a further scheme of the invention, the bottom of the recovery box is provided with a telescopic structure, the bottom of the telescopic structure is provided with rollers, two sides of the bottom of the recovery box are provided with inner grooves, and the inner grooves are slidably connected with limiting plates fixedly connected with the frame.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the output pipe is pulled, so that the take-up frame drives the transmission screw to rotate, the transmission screw drives the sliding seat in threaded connection with the transmission screw to move, the sliding seat moves along the sliding rod and drives the regulating element to move, the length of the resistor connected with the power supply is reduced along with the movement of the regulating element, the heat dissipation capacity of the heating element is increased, the temperature of water in the water tank is further increased, the temperature of the medicine passing through the water tank is further increased, the increase of the exposed length of the output pipe is avoided, the temperature of the medicine reaching the body is excessively low, and the treatment effect of a patient is influenced;

2. according to the invention, through the reverse rotation of the collecting frame, the redundant part of the output tube is wound on the collecting frame, the phenomenon that the output tube is excessively long to cause pulling and secondary damage to a human body is avoided, the driving screw drives the sliding seat to reversely move, the sliding seat drives the adjusting piece to reversely move along the resistor, the length of the resistor connected with a power supply is increased at the moment, the heat dissipation capacity of the heating piece is reduced, the water temperature in the water tank is reduced, the temperature of a medicine entering the collecting frame is reduced, the heat consumption in the medicine conveying process is reduced due to the reduction of the length of the output tube, and the phenomenon that the temperature of the medicine entering the human body is excessively high, so that organs in the human body are scalded is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic view of the general cross-sectional structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;

FIG. 5 is a schematic diagram of the connection relationship of the transfer pump according to the present invention;

FIG. 6 is a schematic diagram of the overall structure of the transfer pump of the present invention;

FIG. 7 is a schematic cross-sectional view of the water tank of the present invention;

FIG. 8 is a schematic diagram of a slider and a connection structure thereof according to the present invention;

FIG. 9 is a schematic view of the structure of the invention from east;

fig. 10 is a schematic view of the explosive structure of the needle holder of the present invention;

FIG. 11 is a schematic view of the structure of the storage rail and its connection relationship according to the present invention;

in the drawings, the list of components represented by the various numbers is as follows:

1. a frame; 11. a return spring; 12. a connecting pipe; 2. a transfer pump; 20. a buckle; 21. a housing; 22. a limiting frame; 23. a rotating shaft; 24. a rotating frame; 25. a pinch roller; 26. a delivery tube; 27. a lower limit ring; 28. a connector; 29. an upper limit ring; 3. a needle stand; 31. a base; 32. a limit screw; 33. a pressing plate; 34. rubber cushion; 4. a water tank; 41. a turntable; 42. a wire collecting frame; 43. an output pipe; 44. a heating member; 45. a drive screw; 5. a bracket; 51. a slide; 52. a slide bar; 53. a resistor; 54. an adjusting member; 6. a recovery box; 61. a baffle; 62. a yielding spring; 63. a feed chute; 64. a telescopic structure; 71. a driving cam; 72. a transmission shaft; 73. a driven cam; 74. a digital wheel; 75. a limit nail; 76. driving the nails; 77. a transmission gear; 8. a storage rail; 81. a fixing bolt; 82. a fixing nut; 83. a chute; 84. a hook; 9. a liquid guide frame; 91. and a liquid return pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-11, the present invention provides a technical solution: the medicine-taking-up device comprises a frame 1, wherein a storage track 8 for hanging medicines is arranged at the inner top of the frame 1, a delivery pump 2 is arranged in the frame 1, a connecting pipe 12 is arranged at both the liquid inlet end and the liquid outlet end of the delivery pump 2, the delivery pump 2 is respectively communicated with a needle seat 3 and a turntable 41 through the connecting pipe 12, a collecting rack 42 is rotationally connected with the turntable 41, the collecting rack 42 is communicated with and is provided with an output pipe 43, the collecting rack 42 is rotationally connected with a water tank 4, a heating element 44 is fixedly connected in the water tank 4, the end part of the collecting rack 42 is fixedly connected with a transmission screw 45, the transmission screw 45 is in threaded connection with a sliding seat 51, the sliding seat 51 is in sliding connection with a sliding rod 52, the outer side of the water tank 4 is fixedly connected with a bracket 5, the bracket 5 is fixedly connected with a resistor 53, the resistor 53 is in sliding connection with an adjusting element 54 fixedly connected with the sliding seat 51, a recovery box 6 and a liquid guide frame 9 are arranged in the frame 1, and the liquid guide frame 9 is provided with a liquid return pipe 91;

before use, the end parts of the output pipe 43 and the liquid return pipe 91 are placed into a patient in a puncture or operation mode, when the medicine needs to be infused, a medicine bag is hung on the object placing track 8, the medicine bag is communicated with the needle seat 3, the delivery pump 2 is started, the medicine flows out of the medicine bag under the action of the delivery pump 2, enters and is delivered into the collecting frame 42 through the connecting pipe 12, the delivery pump 2 and the connecting pipe 12, the medicine in the collecting frame 42 is heated to a proper temperature by the heating piece 44 through water in the water tank 4, the heated medicine is delivered into the patient by the output pipe 43, after the medicine in the patient is filled, the medicine flows into the device by the liquid return pipe 91, and enters the collecting box 6 under the guiding action of the liquid guide frame 9, so that infusion chemotherapy is completed; when the length of a device which is required to be used by a patient is increased, the output tube 43 is pulled to a proper length, the output tube 43 and the device frame 1 are fixed, the shrinkage of the output tube 43 is avoided, the pulling of the patient caused by the shrinkage of the output tube 43 is avoided, as the output tube 43 is partially wound on the output tube 42, a torsion spring is arranged between the output tube 42 and the water tank 4 and is used for the shrinkage of the output tube 42, when the output tube 43 is pulled, the output tube 42 drives the transmission screw 45 to rotate, the transmission screw 45 drives the sliding seat 51 which is in threaded connection with the transmission screw to move, the sliding seat 51 moves along the sliding rod 52 and drives the regulating element 54 to move, the length of the resistor 53 which is connected with a power supply along with the movement of the regulating element 54 is reduced, the heat dissipation amount of the heating element 44 is increased, the temperature of water in the water tank 4 is further increased, the temperature of the medicine after passing through the water tank 4 is further increased, the condition that the exposed outside of the output tube 43 is prevented from being increased, the temperature in the body is excessively low, and the therapeutic effect of the patient is affected;

when the use length of a patient is required to be reduced, the fixation between the output tube 43 and the device frame 1 is canceled, the receiving frame 42 reversely rotates under the action of the torsion spring, the redundant part of the output tube 43 is wound on the receiving frame 42, the overlong output tube 43 is prevented from being pulled, secondary injury is caused to a human body, the transmission screw 45 drives the sliding seat 51 to reversely move, the sliding seat 51 drives the regulating element 54 to reversely move along the resistor 53, at the moment, the length of the resistor 53 connected with a power supply is increased, the heat dissipation of the heating element 44 is reduced, the water temperature in the water tank 4 is reduced, the temperature of a medicine entering the receiving frame 42 is reduced, and the reduction of heat consumption in the medicine conveying process caused by the reduction of the length of the output tube 43 is avoided, the excessive temperature of the medicine entering a human body is prevented, and the internal organs of the human body are scalded;

in summary, by pulling the output tube 43, the take-up frame 42 drives the driving screw 45 to rotate, the driving screw 45 drives the sliding seat 51 in threaded connection with the driving screw 45 to move, the sliding seat 51 moves along the sliding rod 52 and drives the adjusting member 54 to move, the length of the resistor 53 connected to the power supply along with the movement of the adjusting member 54 is reduced, the heat dissipation capacity of the heating member 44 is increased, the temperature of the water in the water tank 4 is further increased, the temperature of the medicine passing through the water tank 4 is further increased, the increase of the exposed external length of the output tube 43 is avoided, the temperature of the medicine reaching the body is excessively low, and the treatment effect of a patient is affected; through the reverse rotation of the collecting frame 42, the redundant part of the output tube 43 is wound on the collecting frame 42, the overlong output tube 43 is prevented from being pulled, secondary damage is caused to a human body, the driving screw 45 drives the sliding seat 51 to move reversely, the sliding seat 51 drives the adjusting piece 54 to move reversely along the resistor 53, the length of the resistor 53 connected with a power supply is increased, the heat dissipation capacity of the heating piece 44 is reduced, the water temperature in the water tank 4 is reduced, the temperature of a medicine entering the collecting frame 42 is reduced, the reduction of heat consumption in the medicine conveying process caused by the shortening of the length of the output tube 43 is avoided, the temperature of the medicine entering the human body is excessively high, and the internal organs of the human body are scalded.

As a further scheme of the invention, the delivery pump 2 comprises a shell 21, a limit frame 22 is connected in a sliding way in the shell 21, a rotating shaft 23 is connected in a rotating way in the shell 21, a rotating frame 24 is fixedly connected with the rotating shaft 23, a pinch roller 25 is connected at the end part of the rotating frame 24 in a rotating way, a delivery pipe 26 is arranged between the pinch roller 25 and the limit frame 22, and lower limit rings 27 connected in a sliding way with the shell 21 are fixedly connected at two ends of the delivery pipe 26;

when the medical infusion device is used, the rotating shaft 23 is rotated, the rotating shaft 23 drives the pinch rollers 25 to rotate through the rotating frame 24, when one pinch roller 25 contacts and compresses the conveying pipe 26, two ends of the conveying pipe 26 are separated by the pinch rollers 25, and along with the movement of the pinch rollers 25, liquid medicine in the conveying pipe 26 moves along with the pinch rollers 25, the liquid medicine is always in the conveying pipe 26 and is not in contact with the outside, pollution of the liquid medicine is avoided, treatment of a patient is affected, when the second pinch roller 25 contacts the conveying pipe 26, the liquid medicine amount between the pinch roller 25 and the previous pinch roller 25 is quantitative, so that the liquid medicine amount which can be conveyed by rotating the rotating shaft 23 is fixed, the conveying pump 2 can finish quantitative liquid medicine conveying, the control on the liquid medicine amount is convenient, meanwhile, the liquid medicine between the pinch rollers 25 is limited by the pinch rollers 25 and does not have backflow, the tail end of the liquid return pipe 91 is provided with a pressure valve (not labeled in the figure), the conveying pump 2 can infuse the medicine into the patient and keep a certain pressure, namely the liquid medicine is slightly expanded, and the treatment effect can be improved.

As a further scheme of the invention, connectors 28 fixedly connected with the connecting pipes 12 are inserted in the lower limiting rings 27, the end parts of the connecting pipes 12 are fixedly connected with upper limiting rings 29, the tops of the limiting frames 22 are fixedly connected with buckles 20 for pressing the upper limiting rings 29, and return springs 11 are fixedly connected between the limiting frames 22 and the outer shells 21;

when the novel drug delivery device is used, the limiting frame 22 is pressed down, the pinch roller 25 is separated from the delivery pipe 26 along with downward movement of the limiting frame 22, the middle section of the delivery pipe 26 is taken out, the limiting frame 22 is loosened, the limiting frame 22 is pushed upwards by the reset spring 11, the upper limiting ring 29 is separated from the buckle 20, at the moment, the lower limiting ring 27 is pulled out of the connector 28, the delivery pipe 26 after use is replaced, the connector 28 at the end part of the connecting pipe 12 is inserted into the lower limiting rings 27 at the two ends of the novel delivery pipe 26, the limiting frame 22 is pulled down again, the middle part of the novel delivery pipe 26 is placed between the limiting frame 22 and the pinch roller 25, meanwhile, the buckle 20 is lowered, the connector 28 is continuously pressed down into the lower limiting ring 27, the connector 28 is separated from the lower limiting ring 27, and damage to the delivery pipe 26 is avoided, and drug overflow or external pollutants are delivered into a patient, and injury is caused to the patient.

Meanwhile, the return spring 11 can ensure that the pinch roller 25 and the conveying pipe 26 keep proper pressure, so that when a pipeline is blocked, the liquid medicine is continuously poured into the abdominal cavity of a patient, and the pain of the patient is increased.

As a further scheme of the invention, the end part of the rotating shaft 23 is fixedly connected with a driving cam 71, the driving cam 71 is meshed with a transmission shaft 72, the transmission shaft 72 is meshed with a driven cam 73, the driven cam 73 is coaxially and rotatably connected with a fixed shaft, the fixed shaft is coaxially and rotatably connected with a plurality of digital wheels 74 which are arranged in a linear array, one side of each digital wheel 74 is fixedly connected with a limiting nail 75, the other side of each digital wheel 74 and the driven cam 73 are both eccentrically and fixedly connected with driving nails 76, and the limiting nails 75 are meshed with transmission gears 77;

when the rotary table is used, the rotary shaft 23 can also drive the driving cam 71 to rotate, the driving cam 71 drives the driven cam 73 to rotate through the transmission shaft 72, the driven cam 73 drives the eccentrically arranged driving nails 76 to rotate, when the driving nails 76 contact the transmission gear 77, the transmission gear 77 rotates and drives the adjacent digital wheels 74 to rotate by a certain angle through the limiting nails 75, leading digits of the digital wheels 74 are changed, the quantity of medicine conveyed by the conveying pump 2 is conveniently recorded, the digital wheels 74 rotate and can drive the driving nails 76 fixedly connected with the digital wheels to rotate, the driving nails 76 repeat the action of the previous driving nails 76, the first digital wheels 74 rotate by a circle, the adjacent digital wheels 74 rotate by a certain angle, and the like.

As a further scheme of the invention, the needle stand 3 comprises a base 31 fixedly connected with the frame 1, both ends of the base 31 are fixedly connected with limit screws 32, the limit screws 32 are fixedly connected with a pressing plate 33 through nuts, and a rubber cushion 34 is arranged between the pressing plate 33 and the base 31;

during the use, in penetrating cushion 34 through the syringe needle, can pour into the medicine into in the base 31, stop screw 32 and nut can be fixed clamp plate 33 on the base 31, avoid cushion 34 to remove at will, also can avoid the gas leakage between clamp plate 33 and the base 31, influence the filling of patient's medicine, cushion 34 can be changed simultaneously, avoid cushion 34 hole too much, can't play the effect of keeping apart external gas.

As a further scheme of the invention, a fixing bolt 81 is fixedly connected to the top of the object placing rail 8, a fixing nut 82 is connected to the fixing bolt 81 in a threaded manner, a sliding groove 83 which is in sliding connection with the fixing bolt 81 is formed in the top of the frame 1, and a hook 84 is connected to the bottom of the object placing rail 8 in a sliding manner;

when the medicine bag hanger is used, the object placing rail 8 can be conveniently moved by the hanging hook 84, medicine bags are conveniently hung on the hanging hook 84, the object placing rail 8 can be fixed at any position on the frame 1 by the fixing bolt 81 and the fixing nut 82, the number of the object placing rails 8 can be increased or reduced, and patients can conveniently pour medicines with different numbers.

As a further scheme of the invention, the top of the recovery tank 6 is connected with a baffle 61 with an L-shaped structure in a sliding way, a yielding spring 62 is fixedly connected between the baffle 61 and the recovery tank 6, and the recovery tank 6 and the liquid guide frame 9 are provided with a feeding groove 63 matched with the baffle 61;

when the recovered liquid medicine in the recovery box 6 needs to be treated, the recovery box 6 is pulled out, the baffle 61 is pushed forward by the abdication spring 62, the baffle 61 plugs the feeding groove 63, and the liquid medicine smell is prevented from overflowing, so that influence is caused to other people.

As a further scheme of the invention, the bottom of the recovery box 6 is provided with a telescopic structure 64, the bottom of the telescopic structure 64 is provided with rollers, both sides of the bottom of the recovery box 6 are provided with inner grooves, and the inner grooves are in sliding connection with limiting plates fixedly connected with the frame 1;

when the recovery box 6 is used, after the recovery box 6 is pulled out, the telescopic structure 64 stretches out the roller out of the recovery box 6, so that the recovery box 6 can be conveniently moved.

Claims (8)

1. An abdominal cavity hot perfusion chemotherapy device comprises a frame (1), and is characterized in that: the utility model provides a frame (1) is interior top be provided with put thing track (8) that are used for hanging the medicine, install delivery pump (2) in frame (1), connecting pipe (12) are all installed to delivery pump (2) feed liquor end and play liquid end, just delivery pump (2) are respectively through connecting pipe (12) intercommunication have needle file (3) and carousel (41) rotate and are connected with receipts line (42), receipts line (42) intercommunication just are equipped with output tube (43) around, receipts line (42) rotate and are connected with water tank (4), fixedly connected with heating piece (44) in water tank (4), receipts line (42) end fixedly connected with drive screw (45), drive screw (45) threaded connection has slide (51), slide (51) sliding connection have slide bar (52), fixedly connected with support (5) in the outside water tank (4), support (5) fixedly connected with resistor (53), resistor (53) sliding connection have with and slide (51) fixedly connected with regulating part (54), install drain pan (9) in frame (6).

2. The device of claim 1, wherein: the conveying pump (2) comprises a shell (21), a limiting frame (22) is connected in the shell (21) in a sliding mode, a rotating shaft (23) is connected in the shell (21) in a rotating mode, a rotating frame (24) is fixedly connected to the rotating shaft (23), a pressing wheel (25) is connected to the end portion of the rotating frame (24) in a rotating mode, a conveying pipe (26) is arranged between the pressing wheel (25) and the limiting frame (22), and lower limiting rings (27) are fixedly connected to the two ends of the conveying pipe (26) in a sliding mode and are connected with the shell (21).

3. The device of claim 2, wherein: the utility model discloses a connecting pipe, including lower spacing ring (27), connecting pipe (12) and connecting pipe, connector (28) all peg graft in lower spacing ring (27), connecting pipe (12) tip fixedly connected with goes up spacing ring (29), spacing (22) top fixedly connected with is used for pressing down buckle (20) of spacing ring (29), fixedly connected with reset spring (11) between spacing (22) and shell (21).

4. A device for abdominal thermal infusion chemotherapy as claimed in claim 3, wherein: the rotary shaft is characterized in that a driving cam (71) is fixedly connected to the end portion of the rotary shaft (23), a driving shaft (72) is meshed with the driving cam (71), a driven cam (73) is meshed with the driving shaft (72), a fixed shaft is fixedly connected to the driven cam (73) coaxially, a plurality of digital wheels (74) which are arranged in a linear array are coaxially and rotatably connected to the fixed shaft, a limiting nail (75) is fixedly connected to one side of each digital wheel (74), a driving nail (76) is fixedly connected to the other side of each digital wheel (74) and is eccentric to the driven cam (73), and a driving gear (77) is meshed with the limiting nail (75).

5. An abdominal cavity thermal infusion chemotherapy device according to claim 1 or 4, wherein: the needle seat (3) comprises a base (31) fixedly connected with the frame (1), limiting screws (32) are fixedly connected to two ends of the base (31), pressing plates (33) are fixedly connected to the limiting screws (32) through nuts, and rubber pads (34) are arranged between the pressing plates (33) and the base (31).

6. The device of claim 5, wherein: the utility model discloses a rack, including thing track (8) and rack, put thing track (8) top fixedly connected with fixing bolt (81), fixing bolt (81) threaded connection has fixation nut (82), spout (83) with fixing bolt (81) sliding connection have been seted up at frame (1) top, put thing track (8) bottom sliding connection have couple (84).

7. The device of claim 6, wherein: baffle (61) of L type structure are connected with to collection tank (6) top sliding connection, fixedly connected with spring (62) of stepping down between baffle (61) and collection tank (6), collection tank (6) and drain frame (9) all offer with baffle (61) complex feed chute (63).

8. The device of claim 7, wherein: the telescopic structure (64) is installed to collection box (6) bottom, telescopic structure (64) bottom is provided with the gyro wheel, collection box (6) bottom both sides are provided with the inner groovy, inner groovy sliding connection has the limiting plate with frame (1) fixed connection.