In-vitro catheter structure for hepatic artery perfusion chemotherapy

Abstract

The utility model discloses an in-vitro catheter structure for hepatic artery perfusion chemotherapy, and relates to the technical field of medical instruments. The in-vitro catheter structure for hepatic artery perfusion chemotherapy comprises a bottom box, a sealing cover is arranged at the open end of the top of the bottom box, a sliding hole is formed in one side of the surface of the top of the sealing cover, a micro pump is arranged on one side of the surface of the bottom of an inner cavity of the bottom box, and a medicine inlet pipe and a medicine guide pipe are installed at the input end and the output end of the micro pump respectively; a sliding hole is formed in the inner cavity of the bottom box, an adjusting assembly is arranged on the surface of the inner cavity of the bottom box and located below the sliding hole, the top end of the adjusting assembly penetrates through the sliding hole, and through holes used for penetrating through the medicine inlet pipe and the medicine guide pipe are formed in the two sides of one side wall of the bottom box correspondingly. Therefore, excessive medicine guide tubes are prevented from falling outside, the use safety of the medicine guide tubes is improved, and the service life of the medicine guide tubes is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an extracorporeal catheter structure used for hepatic artery perfusion chemotherapy. Background Art

[0002] Hepatic artery infusion chemotherapy has recently attracted more and more attention from domestic scholars. Recent studies have shown that hepatic artery infusion of oxaliplatin, calcium folinate, and fluorouracil significantly improves survival and increases tumor response rate, and the adverse reactions are tolerable. HAIC was first proposed by Japan and has been carried out in many Asian countries such as Japan and South Korea for more than 30 years. Cisplatin-based regimens are often used. As a type of interventional treatment, HAIC is minimally invasive, accurate, safe, efficient, has few complications, and is highly repeatable. It is recommended by the Japanese Liver Cancer Guidelines as the standard treatment for liver cancer with portal vein tumor thrombus. As a type of interventional treatment for liver cancer, HAIC is a regional local chemotherapy that continuously injects chemotherapy drugs into the tumor supply artery for a long time through femoral artery catheterization.

[0003] However, the existing extracorporeal catheter structure for hepatic artery perfusion chemotherapy is not convenient for medical staff to adjust the use length of the catheter during use, which causes the catheter to be idle outside, and easily causes the catheter to bend, which affects the delivery of drugs by the catheter. Therefore, we propose an extracorporeal catheter structure for hepatic artery perfusion chemotherapy to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an extracorporeal catheter structure for hepatic artery perfusion chemotherapy, which solves the problem that it is inconvenient for medical staff to adjust the usable length of the catheter, thereby causing the catheter to be idle outside, which in turn easily causes the catheter to bend, thereby affecting the catheter's delivery of drugs.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an extracorporeal catheter structure for hepatic artery perfusion chemotherapy, comprising a bottom box, a cover is provided at the top opening end of the bottom box, a sliding hole is provided on one side of the top surface of the cover, a micro pump is provided on one side of the bottom surface of the inner cavity of the bottom box, and a drug inlet tube and a drug guide tube are installed at the input end and the output end of the micro pump respectively;

[0006] An adjustment component is provided on the inner surface of the bottom box and below the slide hole, and the top of the adjustment component passes through the slide hole. Through holes for passing through the drug inlet tube and the drug guide tube are provided on both sides of a side wall of the bottom box;

[0007] A battery is arranged on the bottom surface of the inner cavity of the bottom box and located on one side of the micro pump.

[0008] Preferably, the adjustment assembly comprises a positioning bar arranged on one side of the bottom surface of the bottom box, a convex slide groove is provided on the top surface of the positioning bar, and a convex sliding block is slidably installed in the inner cavity of the convex slide groove;

[0009] An internal threaded hole is provided on the top surface of the convex slider, and the internal threaded hole passes through the upper and lower surfaces of the convex slider, and a locking button is rotatably connected to the inner cavity of the internal threaded hole;

[0010] A pressure pad is inserted into the locking button, and the bottom surface of the pressure pad is in contact with the top surface of the cover.

[0011] Preferably, a holder is provided on the bottom surface of the inner cavity of the bottom box and located on one side of the micro pump, one end of the drug guiding tube passes through the inner cavity of the holder, and the holder is used to engage and limit the one end of the drug guiding tube.

[0012] Preferably, a wire take-up assembly is provided on the outer side wall of the bottom box and near the through hole, and the wire take-up assembly is used to engage and limit the liquid outlet end of the drug guiding tube.

[0013] Preferably, the wire take-up assembly includes a positioning plate arranged on one side of the side wall of the bottom box, and claws are arranged on both sides of the surface of the positioning plate.

[0014] Preferably, a control switch is provided on one side of the outer side wall of the bottom box, and the control switch is electrically connected to the micro pump and the battery.

[0015] Preferably, a hanging rope is provided on the outer side wall of the bottom box and located on one side of the control switch.

[0016] Beneficial Effects

[0017] The utility model provides an extracorporeal catheter structure for hepatic artery infusion chemotherapy. Compared with the prior art, it has the following beneficial effects:

[0018] The extracorporeal catheter structure for hepatic artery perfusion chemotherapy can be installed on the bottom box through the cover, and can provide a foundation for opening the sliding hole. At the same time, it can cooperate with the bottom box to protect the micro pump, the adjustment component and the adjustment component installed in the bottom box. Since the input end and the output end of the micro pump are respectively installed with a drug inlet tube and a drug guide tube, and one end of the drug guide tube bypasses the adjustment component and extends out of the bottom box from the through hole, when it is needed, the medical staff can first loosen the adjustment component and then pull one end of the drug guide tube, so that the one end of the drug guide tube can be continuously extended out of the bottom box, and the use length of the drug guide tube pulled out of the bottom box can be convenient for the medical staff to flexibly adjust according to needs;

[0019] Then, by locking and limiting the adjustment component, the drug guide tube can be blocked at the same time, thereby preventing the drug guide tube from being pulled out further, so as to simultaneously prevent too many drug guide tubes from being outside, thereby improving the safety and life of the drug guide tube. Through the micro pump, the medicine connected to the drug inlet tube can be pumped into the drug guide tube, and then the medicine can be delivered to the catheter in the patient's body connected to the drug guide tube, so as to deliver the medicine to the patient. The device can be powered by a battery, thereby ensuring the endurance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the inner structure of the bottom box of the utility model;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the adjustment component of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the wire take-up component of the utility model.

[0024] In the figure: 1. bottom box; 2. sealing cover; 3. sliding hole; 4. micro pump; 5. medicine inlet tube; 6. medicine guide tube; 7. adjustment assembly; 71. positioning strip; 72. convex slide groove; 73. convex slider; 74. internal threaded hole; 75. locking button; 76. pressure pad; 8. holder; 9. wire take-up assembly; 91. positioning plate; 92. claw; 10. battery; 11. control switch; 12. hanging rope. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-2The utility model provides a technical solution: an extracorporeal catheter structure for hepatic artery perfusion chemotherapy, comprising a bottom box 1, a cover 2 is provided at the top opening end of the bottom box 1, a sliding hole 3 is provided on one side of the top surface of the cover 2, a micro pump 4 is provided on one side of the inner cavity bottom surface of the bottom box 1, and a drug inlet tube 5 and a drug guide tube 6 are respectively installed at the input end and the output end of the micro pump 4; an adjustment component 7 is provided on the inner cavity surface of the bottom box 1 and below the sliding hole 3, and the top end of the adjustment component 7 passes through the sliding hole 3, and through holes for passing through the drug inlet tube 5 and the drug guide tube 6 are provided on both sides of one side wall of the bottom box 1; a battery 10 is provided on the inner cavity bottom surface of the bottom box 1 and on one side of the micro pump 4;

[0027] Through the sealing cover 2, it can be installed on the bottom box 1 and provide a foundation for opening the sliding hole 3. At the same time, it can cooperate with the bottom box 1 to protect the micro pump 4, the adjustment component 7 and the adjustment component 7 installed in the bottom box 1. Since the input end and the output end of the micro pump 4 are respectively installed with the drug inlet pipe 5 and the drug guide tube 6, and one end of the drug guide tube 6 bypasses the adjustment component 7 and extends out of the bottom box 1 from the through hole, when it is needed, the medical staff can first loosen the adjustment component 7, and then pull one end of the drug guide tube 6, so that one end of the drug guide tube 6 can continuously extend out of the bottom box 1, and the drug guide tube 6 can be pulled out of the bottom box 1. The use length of the bottom box 1 can be It is convenient for medical staff to make flexible adjustments according to needs, and then by locking and limiting the adjustment component 7, it can simultaneously block the drug guide tube 6, thereby preventing the drug guide tube 6 from being pulled out further, so as to simultaneously prevent too many drug guide tubes 6 from being outside, thereby improving the safety and life of the drug guide tube 6. Through the micro pump 4, the medicine connected to the drug inlet tube 5 can be pumped into the drug guide tube 6, and then the medicine can be delivered to the patient's internal catheter connected to the drug guide tube 6, so as to deliver the medicine to the patient. The device can be powered by the battery 10, thereby ensuring the endurance of the device.

[0028] See also Figure 1-Figure 3 The adjusting assembly 7 includes a positioning bar 71 arranged on one side of the bottom surface of the bottom box 1, a convex slide groove 72 is provided on the top surface of the positioning bar 71, and a convex slider 73 is slidably installed in the inner cavity of the convex slide groove 72; an internal threaded hole 74 is provided on the top surface of the convex slider 73, and the internal threaded hole 74 passes through the upper and lower surfaces of the convex slider 73, and a locking button 75 is rotatably connected to the inner cavity of the internal threaded hole 74; a pressure pad 76 is inserted on the locking button 75, and the bottom surface of the pressure pad 76 is in contact with the top surface of the cover 2;

[0029] When the locking cam 75 is in the state of being rotated, the locking cam 74 is in the state of being rotated, and the locking cam 75 is in the state of being rotated, so that the locking cam 75 can be locked to the locking cam 74 by the locking cam 75.

[0030] See also Figure 2 A holder 8 is provided on the bottom surface of the inner cavity of the bottom box 1 and on one side of the micro pump 4. One end of the drug guiding tube 6 passes through the inner cavity of the holder 8. Through the holder 8, one end of the drug guiding tube 6 can be clamped and limited, thereby preventing the drug inlet end of the drug guiding tube 6 from falling off the micro pump 4.

[0031] See also Figure 2 , Figure 4 A wire take-up assembly 9 is disposed on the outer wall of the bottom box 1 and near the through hole. The wire take-up assembly 9 is used to clamp and limit the liquid outlet end of the drug guiding tube 6. The wire take-up assembly 9 includes a positioning plate 91 disposed on one side of the side wall of the bottom box 1. Both sides of the surface of the positioning plate 91 are provided with claws 92;

[0032] Through the positioning plate 91 in the take-up assembly 9, it can be fixed to one side of the side wall of the bottom box 1, and the two claws 92 can be installed. Then, through the two claws 92, medical staff can conveniently store one end of the drug guide tube 6 that is idle outside the bottom box 1.

[0033] See also Figure 1 , Figure 2 A control switch 11 is disposed on one side of the outer wall of the bottom box 1, and the control switch 11 is electrically connected to the micro pump 4 and the battery 10;

[0034] By controlling the switch 11 , medical personnel can flexibly control the micro pump 4 to turn on or off.

[0035] See also Figure 1 , Figure 2 A hanging rope 12 is provided on the outer wall of the bottom box 1 and on one side of the control switch 11. The hanging rope 12 can be conveniently used for medical staff to hang it and then store it.

[0036] During operation, the cover 2 can be installed on the bottom box 1 and provide a foundation for the slide hole 3. At the same time, it can cooperate with the bottom box 1 to protect the micro pump 4, the adjustment component 7 and the adjustment component 7 installed in the bottom box 1. Since the input end and the output end of the micro pump 4 are respectively installed with the drug inlet pipe 5 and the drug guide tube 6, and one end of the drug guide tube 6 bypasses the adjustment component 7 and extends out of the bottom box 1 from the through hole, when it is needed, the medical staff can first loosen the adjustment component 7, and then pull one end of the drug guide tube 6, so that one end of the drug guide tube 6 can continuously extend out of the bottom box 1, and the drug guide tube 6 is pulled out of the bottom box 1. The use length of the , which can facilitate medical staff to flexibly adjust according to needs, and then lock and limit the adjustment component 7, so as to simultaneously block the drug guiding tube 6, thereby preventing the drug guiding tube 6 from being pulled out further, so as to simultaneously prevent too many drug guiding tubes 6 from being outside, thereby improving the safety and life of the drug guiding tube 6. Through the micro pump 4, the medicine connected to the drug inlet tube 5 can be pumped into the drug guiding tube 6, and then the medicine can be delivered to the patient's catheter connected to the drug guiding tube 6, so as to deliver the medicine to the patient. The device can be powered by the battery 10, thereby ensuring the endurance of the device.

[0037] When the locking cam 75 is in the state of being rotated, the locking cam 74 is in the state of being rotated, and the locking cam 75 is in the state of being rotated, so that the locking cam 75 can be locked to the locking cam 74 by the locking cam 75.

[0038] Through the holder 8, one end of the drug guiding tube 6 can be locked and limited, thereby preventing the drug inlet end of the drug guiding tube 6 from falling off the micro pump 4. Through the positioning plate 91 in the take-up assembly 9, it can be fixed to one side of the side wall of the bottom box 1, and the two claws 92 can be installed. Then, through the two claws 92, medical staff can conveniently store the end of the drug guiding tube 6 that is idle outside the bottom box 1. Through the control switch 11, medical staff can flexibly control the micro pump 4 to turn on or off. Through the hanging rope 12, medical staff can conveniently hang it on and then store it.

[0039] In summary, the device can facilitate medical staff to flexibly pull out the use length of the drug guiding tube 6 according to needs, thereby preventing too much drug guiding tube 6 from being outside, thereby improving the safety and life of the drug guiding tube 6.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An extracorporeal catheter structure for hepatic artery perfusion chemotherapy, comprising a bottom box (1), wherein a cover (2) is provided at the top opening end of the bottom box (1), and characterized in that: A sliding hole (3) is provided on one side of the top surface of the sealing cover (2), a micro pump (4) is provided on one side of the bottom surface of the inner cavity of the bottom box (1), and a drug inlet pipe (5) and a drug guide pipe (6) are installed at the input end and the output end of the micro pump (4) respectively; An adjusting component (7) is arranged on the inner surface of the bottom box (1) and below the sliding hole (3), and the top end of the adjusting component (7) passes through the sliding hole (3). Through holes for passing through the drug inlet tube (5) and the drug guide tube (6) are provided on both sides of a side wall of the bottom box (1); A battery (10) is provided on the bottom surface of the inner cavity of the bottom box (1) and located on one side of the micro pump (4).

2. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 1, characterized in that: The adjustment assembly (7) comprises a positioning strip (71) arranged on one side of the bottom surface of the bottom box (1); a convex sliding groove (72) is provided on the top surface of the positioning strip (71); and a convex sliding block (73) is slidably mounted in the inner cavity of the convex sliding groove (72); An internal threaded hole (74) is provided on the top surface of the convex slider (73), and the internal threaded hole (74) penetrates the upper and lower surfaces of the convex slider (73), and a locking button (75) is rotatably connected to the inner cavity of the internal threaded hole (74); A pressure pad (76) is inserted into the locking button (75), and the bottom surface of the pressure pad (76) is in contact with the top surface of the cover (2).

3. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 1, characterized in that: A holder (8) is provided on the bottom surface of the inner cavity of the bottom box (1) and located on one side of the micro pump (4); one end of the drug guiding tube (6) passes through the inner cavity of the holder (8); and the holder (8) is used to engage and limit the position of one end of the drug guiding tube (6).

4. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 1, characterized in that: A wire take-up assembly (9) is provided on the outer wall of the bottom box (1) and close to the through hole. The wire take-up assembly (9) is used to clamp and limit the liquid outlet end of the drug guiding tube (6).

5. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 4, characterized in that: The wire take-up assembly (9) comprises a positioning plate (91) arranged on one side of the side wall of the bottom box (1), and claws (92) are arranged on both sides of the surface of the positioning plate (91).

6. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 1, characterized in that: A control switch (11) is provided on one side of the outer side wall of the bottom box (1), and the control switch (11) is electrically connected to the micro pump (4) and the battery (10).

7. The extracorporeal catheter structure for hepatic artery infusion chemotherapy according to claim 6, characterized in that: A hanging rope (12) is provided on the outer side wall of the bottom box (1) and located on one side of the control switch (11).

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