Medical catheter recycling and processing equipment

Abstract

The present invention discloses a medical catheter recycling and processing device, including a shell, a feed trough is provided on the top surface of the shell, a crushing mechanism is provided at a position below the feed trough inside the shell, the crushing mechanism includes two rotating shafts arranged in a symmetrical structure, cutting mechanisms are provided on both sides of the crushing mechanism, and the cutting mechanism includes a moving seat, a cavity is provided at a position inside the shell relative to the moving seat, the moving seat is coaxially rotatably connected with a slide rod near one end of the rotating shaft, a cutting head is fixedly provided at one end of the sliding rod near the rotating shaft, and the cutting head cuts off the discarded catheter wound on the rotating shaft. The present invention can timely remove the discarded catheter wound on the rotating shaft through the cutting mechanism, which is not only for the protection of the device, but also for the reduction of the operating burden of the device and the effective extension of the service life of the device, and can also ensure that each discarded catheter can be timely crushed and recycled, reducing the labor of medical staff in recycling discarded catheters.

Description

Technical Field

[0001] The invention relates to the technical field of catheter recovery, and in particular to a medical catheter recovery and processing device. Background Art

[0002] Medical catheters are common disposable medical consumables that are mainly used for intravenous infusion and have been sterilized to establish a channel between the vein and the drug solution. They are directly discarded after use. However, in hospitals where a large number of patients with low immunity gather, medical staff must recycle medical catheters into relatively sealed equipment in order to avoid cross infection.

[0003] The current recycling method is for medical staff to manually compress the volume of medical catheters (for example, kneading or coiling them), and then put the medical catheters into a unified storage container. After the container is filled, it is transported to a designated location for further recycling and processing. Subsequent recycling generally involves crushing the catheter. This operation can not only drain the residual liquid in the catheter and destroy it separately, but also reduce the gaps between discarded catheters by reducing the unit volume, thereby increasing the amount of discarded catheters transported each time.

[0004] Although the existing catheter recovery method is not difficult to operate, its process is complicated and medical staff need to contact the discarded catheter for a long time during the collection process, which poses a risk of infection. At the same time, the current method of crushing the catheter is to use a roller crusher. The catheter is easily entangled on the outside of the crushing roller during the crushing process, which not only damages the crushing equipment, but also causes a decrease in the efficiency of the catheter recovery work. In view of this, the present invention proposes a medical catheter recovery and processing equipment. Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a medical catheter recovery and processing device, which can effectively solve the problems in the prior art.

[0007] Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention provides a medical catheter recycling and processing device, comprising a shell, a feeding trough is provided on the top surface of the shell, a crushing mechanism is provided inside the shell at a position below the feeding trough, the crushing mechanism crushes the discarded catheter, the crushing mechanism comprises two rotating shafts arranged in a symmetrical structure, and a plurality of crushing knives are evenly fixed on the outer wall of the rotating shaft;

[0010] A cutting mechanism is arranged on the outer side of the rotating shaft, and the cutting mechanism comprises a moving seat, a cavity is provided inside the shell at a position relative to the moving seat, and a sliding rod is coaxially connected to one end of the moving seat near the rotating shaft, and a cutting head is fixedly arranged at one end of the sliding rod near the rotating shaft, and the cutting head cuts off the waste catheter wound on the rotating shaft;

[0011] A filter plate is fixedly arranged at the lower part of the shell. The filter plate is arranged in an inclined structure with a lower front and a higher rear. A discharge port is arranged on a side wall of the shell relative to the lower end of the filter plate.

[0012] Preferably, both ends of the rotating shaft are rotatably connected to the inner walls of both sides of the outer shell respectively, the multiple crushing knives are arranged in a spiral shape of two-thirds of a turn, the multiple crushing knife notches on the same rotating shaft are arranged in a continuous spiral shape, the multiple crushing knives on the two rotating shafts are arranged in a staggered manner, and a first spiral groove is provided on the outer wall of the rotating shaft relative to the multiple crushing knife notches, and the inner wall of the first spiral groove is in sliding contact with the end of the cutting head.

[0013] Preferably, the cutting head has a cross-shaped structure, and the edges of the four sides of the cutting head are all sharp-angled structures. The cutting head is made of metal, and a limit plate is provided on the outer side of the rotating shaft. The inner wall of the limit plate has an arc-shaped structure and is in sliding contact with the edges of multiple crushing knives. The limit plate and the inner wall of the cavity are both provided with moving grooves that slide with the moving seat.

[0014] Preferably, a plurality of tooth columns are evenly fixed on the bottom surface of the movable groove relative to the outer end of the movable seat, a through opening is provided on the bottom surface of the movable seat, and the outer wall of the sliding rod is an annular equidistant structure with a plurality of tooth grooves meshingly connected with the tooth columns, the length of the tooth groove is greater than the length of the tooth column and slidingly cooperates with the tooth column.

[0015] Preferably, the movable seat is provided with a steel coiled belt slidingly sleeved near one end of the rotating shaft, and circular grooves are opened in the interlayers of the outer walls on both sides of the shell at positions relative to the two ends of the steel coiled belt, and a fixed shaft is coaxially connected to the inside of the circular groove, and the two ends of the steel coiled belt are respectively spirally coiled on the outer walls of the two fixed shafts, and a coil spring is sleeved on the lower end of the fixed shaft, and the outer end of the coil spring is connected and fixed to the inner wall of the circular groove, and the steel coiled belt is slidably connected to the shell and the limit plate.

[0016] Preferably, a guide rod is fixedly provided in the middle of the bottom surface of the movable seat, and the bottom surface of the cavity is centrally symmetrically structured with two guide grooves that slide with the guide rod, and an arc groove is provided between the ends of the two guide grooves on the same side, and the two arc grooves are offset forward near one end of the cutting head, and the guide rod slides with the two arc grooves.

[0017] Preferably, the inner wall of the front arc groove close to one end of the cutting head and the inner wall of the rear arc groove away from one end of the cutting head are both provided with block grooves, and the inner walls of the block grooves are elastically connected with blocks via compression springs, and the side wall of the front block away from the cutting head and the side wall of the rear block close to the cutting head are both inclined structures and are in extrusion contact with the guide rod.

[0018] Preferably, a movable ring is fixedly provided at one end of the movable seat away from the rotating shaft, a rotating rod is coaxially slidably arranged inside the movable ring, a second spiral groove is provided on the outer wall of the rotating rod, and a third spiral groove opposite to the spiral direction of the second spiral groove is also provided on the outer wall of the rotating rod, the front and rear ends of the second spiral groove are respectively connected to the front and rear ends of the third spiral groove, the number of turns of the third spiral groove is less than the number of turns of the second spiral groove, and a guide block slidingly matched with the second spiral groove and the third spiral groove is fixedly provided on the inner wall of the movable ring.

[0019] Preferably, one end of the rotating shaft is coaxially fixedly connected with a gear, the two gears are meshingly connected, an inner cavity is opened in the interlayer of the side wall of the shell at a position relative to the two gears, and a motor is fixedly arranged on the side wall of the shell at a position relative to one of the gears, the output end of the motor extends through the outer wall of the shell to the interior thereof and is coaxially fixedly connected with the corresponding gear, a transmission belt is connected between the other end of the rotating shaft and the end of the rotating rod on the same side thereof, and the transmission belt is slidably connected to the side wall of the shell.

[0020] Preferably, the upper part of the shell is in a step structure, the bottom surface of the feed trough is in an inverted triangle structure and is connected to the inside of the shell, a baffle is fixedly provided in the middle of the feed trough, and the baffle is a V-shaped structure with a concave surface downward, a sealing door is hinged on the top surface of the discharge port, a glass plate is embedded in the middle of the sealing door, the inner bottom surface of the shell is in an inclined structure with high front and low back, and a water outlet pipe is penetrated through the inner bottom surface of the shell away from the discharge port, and a valve is connected in the middle of the water outlet pipe.

[0021] Beneficial Effects

[0022] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0023] 1. The present invention is provided with a cutting mechanism, through which the discarded catheters wound on the rotating shaft can be cut off in time, which not only protects the device, reduces the operating burden of the device, but also effectively prolongs the service life of the device, and can also ensure that each discarded catheter can be crushed and recycled in time, reducing the workload of medical staff in recycling discarded catheters.

[0024] 2. The present invention is provided with a feed trough that can isolate the inside and the outside and a crushing mechanism under the feed trough. Such a design enables medical staff to recover and crush the discarded catheters as soon as possible without transporting them. At the same time, the discarded catheters and the residual liquid therein are separated in the process, which not only reduces the recovery process of the discarded catheters and improves the recovery efficiency, but also reduces the contact time between medical staff and the discarded catheters, which helps to protect the health and safety of medical staff.

[0025] 3. The present invention adopts the design of the guide groove and the arc groove, and the mutual cooperation of the three spiral grooves, so that the process of the cutting head winding the discarded catheter on the cutting shaft lasts for a sufficient time and has a stronger cutting effect, and after each round of cutting is completed, it quickly resets to carry out the next round of cutting operation, further improving the protection of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention;

[0029] Figure 3 It is a schematic diagram of a half-section structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the top cross-sectional structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the internal structure of the housing of the present invention;

[0032] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0033] Figure 7 It is a schematic diagram of the cutting mechanism structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the exploded structure of the mobile seat of the present invention;

[0035] Fig. 9 It is a schematic diagram of the rotating shaft structure of the present invention.

[0036] The numbers in the figure represent: 1. Shell; 2. Feed chute; 3. Crushing mechanism; 4. Rotating shaft; 5. Crushing knife; 6. Cutting mechanism; 7. Moving seat; 8. Cavity; 9. Sliding rod; 10. Cutting head; 11. Filter plate; 12. Discharge port; 13. First spiral groove; 14. Stop plate; 15. Moving groove; 16. Tooth column; 17. Through port; 18. Tooth groove; 19. Steel coil; 20. Circular groove; 21. Fixed Shaft; 22, coil spring; 23, guide rod; 24, guide groove; 25, arc groove; 26, block groove; 27, compression spring; 28, stopper; 29, movable ring; 30, rotating rod; 31, second spiral groove; 32, third spiral groove; 33, gear; 34, motor; 35, transmission belt; 36, baffle; 37, sealing door; 38, water outlet pipe; 39, valve; 40, glass plate; 41, inner cavity; 42, guide block. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1-Figure 9 As shown, the medical catheter recycling and processing equipment of the present invention comprises a shell 1, a feeding trough 2 is provided on the top surface of the shell 1, a crushing mechanism 3 is provided in the position below the feeding trough 2 inside the shell 1, the crushing mechanism 3 crushes the discarded catheter, the crushing mechanism 3 comprises two rotating shafts 4 arranged in a symmetrical structure, a plurality of crushing knives 5 are evenly fixed on the outer wall of the rotating shaft 4, both ends of the rotating shaft 4 are rotatably connected to the inner walls of the two sides of the shell 1, the plurality of crushing knives 5 are all arranged in a spiral shape of two-thirds of a turn, the notches of the plurality of crushing knives 5 located on the same rotating shaft 4 are arranged in a continuous spiral shape, the plurality of crushing knives 5 on the two rotating shafts 4 are arranged in a staggered manner, a first spiral groove 13 is provided on the outer wall of the rotating shaft 4 at the notch of the plurality of crushing knives 5, the inner wall of the first spiral groove 13 is in sliding contact with the end of the cutting head 10, the cutting head 10 is in a cross-shaped structure, the edges of the four sides of the cutting head 10 are all sharp-angle structures, the cutting head 10 is made of metal, a limiting plate 14 is provided on the outer side of the rotating shaft 4, the inner wall of the limiting plate 14 is in an arc-shaped structure and is in sliding contact with the edges of the plurality of crushing knives 5.

[0039] A cutting mechanism 6 is arranged on the outer side of the rotating shaft 4, and the cutting mechanism 6 includes a moving seat 7. A cavity 8 is provided inside the housing 1 at a position relative to the moving seat 7. The moving seat 7 is coaxially connected to a sliding rod 9 near one end of the rotating shaft 4. A cutting head 10 is fixedly provided at one end of the sliding rod 9 near the rotating shaft 4. The cutting head 10 cuts off the discarded catheter wound on the rotating shaft 4. A moving groove 15 that is slidably matched with the moving seat 7 is provided on the inner wall of the limiting plate 14 and the cavity 8. A plurality of tooth columns 16 are evenly fixedly provided on the bottom surface of the moving groove 15 relative to the outer end of the moving seat 7. A through hole 17 is provided on the bottom surface of the moving seat 7. The outer wall of the sliding rod 9 is annular and evenly spaced and has a plurality of tooth grooves 18 meshing with the tooth columns 16. The length of the tooth groove 18 is greater than the length of the tooth column 16 and slides with the tooth column 16 In cooperation, a steel coil 19 is slidably sleeved on one end of the movable seat 7 near the rotating shaft 4, and circular grooves 20 are provided in the interlayer of the outer walls on both sides of the outer shell 1 at positions relative to the two ends of the steel coil 19. A fixed shaft 21 is coaxially connected inside the circular groove 20. The two ends of the steel coil 19 are respectively spirally coiled around the outer walls of the two fixed shafts 21, and a coil spring 22 is sleeved on the lower end of the fixed shaft 21. The outer end of the coil spring 22 is connected and fixed to the inner wall of the circular groove 20. The steel coil 19 is slidably connected to the outer shell 1 and the limit plate 14. A guide rod 23 is fixedly provided in the middle of the bottom surface of the movable seat 7. The bottom surface of the cavity 8 is a centrally symmetrical structure and is provided with two guide grooves 24 that slide with the guide rod 23. An arc groove 25 is provided between the ends of the two guide grooves 24 located on the same side, and the two arc grooves 25 are close to the cutting head 1 0, both ends are offset forward, the guide rod 23 and the two arc grooves 25 are slidably matched, the inner wall of the front arc groove 25 close to the cutting head 10 and the inner wall of the rear arc groove 25 away from the cutting head 10 are both provided with a block groove 26, the inner wall of the block groove 26 is elastically connected with a stopper 28 through a compression spring 27, the side wall of the front stopper 28 away from the cutting head 10 and the side wall of the rear stopper 28 close to the cutting head 10 are both inclined structures and are in compression contact with the guide rod 23, the end of the movable seat 7 away from the rotating shaft 4 is fixed with a movable ring 29, a rotating rod 30 is coaxially slidably arranged inside the movable ring 29, a second spiral groove 31 is provided on the outer wall of the rotating rod 30, and a third spiral groove 32 is also provided on the outer wall of the rotating rod 30 in the opposite direction of the second spiral groove 31, and the second spiral groove The front and rear ends of 31 are respectively connected with the front and rear ends of the third spiral groove 32, the number of turns of the third spiral groove 32 is less than that of the second spiral groove 31, and a guide block 42 is fixedly arranged on the inner wall of the movable ring 29, which is slidably matched with the second spiral groove 31 and the third spiral groove 32. A gear 33 is coaxially fixedly connected to one end of the rotating shaft 4, and the two gears 33 are meshed and connected. An inner cavity 41 is opened in the interlayer of the side wall of the outer shell 1 at a position corresponding to the two gears 33, and a motor 34 is fixedly arranged on the side wall of the outer shell 1 at a position corresponding to one of the gears 33. The output end of the motor 34 extends through the outer wall of the outer shell 1 to the interior thereof and is coaxially fixedly connected with the corresponding gear 33. A transmission belt 35 is connected between the other end of the rotating shaft 4 and the end of the rotating rod 30 on the same side thereof, and the transmission belt 35 is slidably connected to the side wall of the outer shell 1.

[0040] A filter plate 11 is fixedly provided at the lower part of the inner part of the outer shell 1, and the filter plate 11 is arranged in an inclined structure with the front lower and the rear higher. A discharge port 12 is provided on the side wall of the outer shell 1 relative to the lower end of the filter plate 11, and the upper part of the outer shell 1 is in a stepped structure. The bottom surface of the feed chute 2 is in an inverted triangle structure and is connected with the inner part of the outer shell 1. A baffle 36 is fixedly provided in the middle part of the feed chute 2, and the baffle 36 is a V-shaped structure with the concave surface downward. A sealing door 37 is hinged on the top surface of the discharge port 12, and a glass plate 40 is embedded in the middle part of the sealing door 37. The inner bottom surface of the outer shell 1 is in an inclined structure with the front higher and the rear lower. A water outlet pipe 38 is penetrated through the inner bottom surface of the outer shell 1 away from the discharge port 12, and a valve 39 is connected to the middle part of the water outlet pipe 38.

[0041] Working principle: Medical staff can put the used catheter from the feed trough 2 of the device into the shell 1. Under the guidance of the baffle 36 in the feed trough 2, the discarded catheter will slide to the two sides of the feed trough 2, and then be gathered by the inclined surface structure on the bottom of the feed trough 2 to the connecting port between the feed trough 2 and the inside of the shell 1, and then slide into the crushing mechanism 3;

[0042] Driven by the motor 34, one of the gears 33 and the shaft 4 will rotate, and then the gear 33 coaxially fixedly connected to the output end of the motor 34 will drive the other gear 33 to make the shaft 4 on the other side rotate in the opposite direction. The rotation of the two shafts 4 will cause a large number of crushing knives 5 fixed on the two to rotate. Because the crushing knives 5 on both sides are arranged in a staggered manner, there will be no obstruction during rotation, and the staggered design can also minimize the gap in the crushing mechanism 3 to the greatest extent, ensuring that each waste conduit that slides into the housing 1 is The shredded waste catheter will fall onto the filter plate 11 below, and the residual liquid and contaminated patient body fluids therein will flow down along the holes of the filter plate 11 and be concentrated in the cavity between the filter plate 11 and the bottom surface of the housing 1. Medical staff only need to open the sealed door 37 from the discharge port 12 regularly to clean out the shredded waste catheter residues. A glass plate 40 for observing the interior of the housing 1 is provided on the sealed door 37, which is convenient for staff to judge the timing of cleaning. The drained liquid can also be directly released from the device from the outlet pipe 38 by opening the valve 39 at the rear;

[0043] In the process of crushing the waste pipes, although there is a special shape design of the connection port between the feed trough 2 and the inner part of the shell 1 and the obstruction of the limit plate 14, some of the waste pipes will still be entangled in the gaps between the crushing knives 5 on the outer wall of the rotating shaft 4 due to coincidence. At this time, the cutting mechanism 6 in the present device will cut off the waste pipes entangled outside the rotating shaft 4. During the rotation of the rotating shaft 4, the transmission belt 35 will drive the rotating rod 30 on the same side to rotate synchronously and in the same direction. During the rotation of the rotating rod 30, the second spiral groove 31 thereon will squeeze the guide block 42, thereby causing the movable ring 29 with the guide block 42 fixed thereon to translate, and the movable ring 29 will drive the moving seat 7 and the cutting head 10 connected to the moving seat 7 to move together. The first spiral groove 1 3 and the second spiral groove 31 are parallel to each other, and the number of turns and length of the part parallel to the first spiral groove 13 and the second spiral groove 31 are consistent, and the rotation angular velocity of the rotating shaft 4 and the rotating rod 30 are also consistent, so the cutting head 10 will maintain sliding contact with the first spiral groove 13 on the rotating shaft 4 during movement. The first spiral groove 13 is set to allow the waste catheter to be completely wound outside the rotating shaft 4. There will be a gap with the rotating shaft 4 at the first spiral groove 13, which is convenient for the cutting head 10 to cut the waste catheter and prevent the problem of incomplete cutting of the waste catheter caused by the blocking of the rotating shaft 4. At the same time, the sliding rod 9 with multiple tooth grooves 18 will continue to rotate under the toggle of the tooth column 16, so that the blade direction of the cutting head 10 can flexibly cope with the waste catheters wound at different angles, thereby improving the cutting efficiency;

[0044] As the moving seat 7 translates, its end will pull the steel tape 19 to move together, and the steel tape 19 will be pulled out from one side to cover the position where the moving seat 7 passes, so as to close the moving groove 15 to prevent the discarded conduit after crushing from entering the cavity 8. Both ends of the steel tape 19 are wound on the fixed shaft 21, and the coil spring 22 sleeved on the fixed shaft 21 can rewind the steel tape 19 back to the inside of the circular groove 20 when the fixed shaft 21 is not subjected to tension. This structure is similar to the principle of a steel tape measure, and the steel tape 19 is used to prevent it from being broken by the friction of the crushing knife 5;

[0045] When the moving seat 7 moves to the last part of the first spiral groove 13, the position of the guide rod 23 will enter the arc groove 25 at the rear from the inner guide groove 24, and then under the guidance of the arc groove 25, the guide rod 23 will drive the moving seat 7 to slide as a whole in the direction away from the rotating shaft 4, so that the cutting head 10 will be away from the rotating shaft 4. This design is to prevent the cutting head 10 from contacting the rotating shaft 4 and the crushing knife 5 thereon during the resetting process, because the gaps of multiple crushing knives 5 are only arranged in a single spiral to avoid too many gaps affecting the crushing effect. Therefore, when the rotating shaft 4 rotates in the same direction, if the cutting head 10 moves back, it will be stuck with the crushing knife 5. The design of moving the cutting head 10 away from the rotating shaft 4 can avoid this situation. It should be noted that the gap width of the crushing knife 5 is in actual use. In use, it needs to be smaller than the diameter of the discarded catheter. Because the cutting head 10 is a cross-shaped blade, it can play a cutting role even with a small size. When the guide rod 23 slides to the outer end of the arc groove 25, it will press the stopper 28 into the block groove 26 through the inclined surface. After the guide rod 23 passes the stopper 28, the stopper 28 will return to its original position under the rebound force of the compression spring 27 and block the way of the stopper 28. At this time, the guide rod 23 will come to the rear end of the outer guide groove 24. On the other hand, the guide block 42 will also change from sliding cooperation with the second spiral groove 31 to sliding cooperation with the third spiral groove 32. The number of turns of the third spiral groove 32 is very small. This is to enable the cutting head 10 to be quickly reset to avoid the entanglement of the discarded catheter during a long cutting gap and affect the operation of the device.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medical catheter recovery and processing device, comprising a housing (1), characterized in that: A feed trough (2) is provided on the top surface of the housing (1); a crushing mechanism (3) is provided inside the housing (1) at a position below the feed trough (2); the crushing mechanism (3) crushes the waste conduit; the crushing mechanism (3) comprises two rotating shafts (4) arranged in a symmetrical structure; a plurality of crushing knives (5) are evenly fixed on the outer wall of the rotating shaft (4); A cutting mechanism (6) is arranged on the outer side of the rotating shaft (4), and the cutting mechanism (6) comprises a movable seat (7). A cavity (8) is provided inside the housing (1) at a position relative to the movable seat (7). The movable seat (7) is coaxially rotatably connected to a sliding rod (9) at one end close to the rotating shaft (4). A cutting head (10) is fixedly arranged at one end of the sliding rod (9) close to the rotating shaft (4), and the cutting head (10) cuts off the discarded catheter wound around the rotating shaft (4); A filter plate (11) is fixedly arranged at the lower part of the interior of the housing (1); the filter plate (11) is arranged in an inclined structure with the front lower and the rear higher; a discharge port (12) is provided on a side wall of the housing (1) at a lower end relative to the filter plate (11); The two ends of the rotating shaft (4) are respectively rotatably connected to the inner walls of both sides of the outer shell (1); the plurality of crushing knives (5) are all arranged in a spiral shape with two-thirds of a turn; the notches of the plurality of crushing knives (5) located on the same rotating shaft (4) are arranged in a continuous spiral shape; the plurality of crushing knives (5) on the two rotating shafts (4) are arranged in a staggered arrangement; a first spiral groove (13) is provided on the outer wall of the rotating shaft (4) at a position opposite to the notches of the plurality of crushing knives (5); and the inner wall of the first spiral groove (13) is in sliding contact with the end of the cutting head (10).

2. The medical catheter recovery and processing equipment according to claim 1, characterized in that: The cutting head (10) is in a cross-shaped structure, and the edges of the four sides of the cutting head (10) are all sharp-angled structures. The cutting head (10) is made of metal. A limit plate (14) is provided on the outer side of the rotating shaft (4). The inner wall of the limit plate (14) is in an arc-shaped structure and is in sliding contact with the edges of the plurality of crushing knives (5). The limit plate (14) and the inner wall of the cavity (8) are both provided with a moving groove (15) that is slidably matched with the moving seat (7).

3. The medical catheter recovery and processing equipment according to claim 2, characterized in that: A plurality of tooth columns (16) are evenly fixedly arranged on the bottom surface of the movable groove (15) at a position relative to the outer end of the movable seat (7); a through opening (17) is provided on the bottom surface of the movable seat (7); and a plurality of tooth grooves (18) meshingly connected with the tooth columns (16) are provided on the outer wall of the sliding rod (9) in an annular structure with equal spacing; the tooth grooves (18) are longer than the tooth columns (16) and are slidably matched with the tooth columns (16).

4. The medical catheter recovery and processing equipment according to claim 3, characterized in that: A steel coil (19) is slidably sleeved on one end of the movable seat (7) near the rotating shaft (4), and circular grooves (20) are provided in the interlayer of the outer walls of both sides of the shell (1) at positions corresponding to the two ends of the steel coil (19). A fixed shaft (21) is coaxially rotatably connected inside the circular groove (20), and the two ends of the steel coil (19) are respectively spirally coiled around the outer walls of the two fixed shafts (21). A coil spring (22) is sleeved on the lower end of the fixed shaft (21), and the outer end of the coil spring (22) is fixedly connected to the inner wall of the circular groove (20). The steel coil (19) is slidably connected to the shell (1) and the limit plate (14).

5. The medical catheter recovery and processing equipment according to claim 4, characterized in that: A guide rod (23) is fixedly provided in the middle of the bottom surface of the movable seat (7), and the bottom surface of the cavity (8) is provided with two guide grooves (24) slidably matched with the guide rod (23) in a centrally symmetrical structure, and an arc groove (25) is provided between the ends of the two guide grooves (24) located on the same side, and the two arc grooves (25) are both offset forward at one end close to the cutting head (10), and the guide rod (23) is slidably matched with the two arc grooves (25).

6. The medical catheter recovery and processing equipment according to claim 5, characterized in that: The inner wall of the front arc groove (25) at one end close to the cutting head (10) and the inner wall of the rear arc groove (25) at one end away from the cutting head (10) are both provided with a block groove (26), and the inner wall of the block groove (26) is elastically connected to a stopper (28) via a compression spring (27). The side wall of the front stopper (28) away from the cutting head (10) and the side wall of the rear stopper (28) close to the cutting head (10) are both inclined structures and are in compression contact with the guide rod (23).

7. The medical catheter recovery and processing equipment according to claim 6, characterized in that: A movable ring (29) is fixedly provided at one end of the movable seat (7) away from the rotating shaft (4), a rotating rod (30) is coaxially slidably provided inside the movable ring (29), a second spiral groove (31) is provided on the outer wall of the rotating rod (30), a third spiral groove (32) having a spiral direction opposite to that of the second spiral groove (31) is also provided on the outer wall of the rotating rod (30), the front and rear ends of the second spiral groove (31) are respectively connected to the front and rear ends of the third spiral groove (32), the number of turns of the third spiral groove (32) is less than the number of turns of the second spiral groove (31), and a guide block (42) is fixedly provided on the inner wall of the movable ring (29) and is slidably matched with both the second spiral groove (31) and the third spiral groove (32).

8. The medical catheter recovery and processing equipment according to claim 7, characterized in that: One end of the rotating shaft (4) is coaxially fixedly connected to a gear (33), and the two gears (33) are meshingly connected. An inner cavity (41) is provided in the side wall interlayer of the housing (1) at a position corresponding to the two gears (33). A motor (34) is fixedly provided on the side wall of the housing (1) at a position corresponding to one of the gears (33). The output end of the motor (34) passes through the outer wall of the housing (1) and extends into the interior thereof and is coaxially fixedly connected to the corresponding gear (33). A transmission belt (35) is connected between the other end of the rotating shaft (4) and the end of the rotating rod (30) on the same side thereof, and the transmission belt (35) is slidably connected to the side wall of the housing (1).

9. The medical catheter recovery and processing equipment according to claim 8, characterized in that: The upper part of the shell (1) is in the form of a step structure, the bottom surface of the feed trough (2) is in the form of an inverted triangle structure and is connected to the inside of the shell (1), a baffle (36) is fixedly provided in the middle of the feed trough (2), and the baffle (36) is a V-shaped structure with the concave surface facing downwards, a sealing door (37) is hingedly connected to the top surface of the discharge port (12), and a glass plate (40) is embedded in the middle of the sealing door (37), the inner bottom surface of the shell (1) is in the form of an inclined structure with a high front and a low rear, and a water outlet pipe (38) is provided through the inner bottom surface of the shell (1) on the side away from the discharge port (12), and a valve (39) is connected in the middle of the water outlet pipe (38).

Images