A needle separation device

Abstract

This application discloses a catheter-needle separation device, including a housing with a cutting channel, a first cavity, and a second cavity, wherein the cutting channel is located between the first and second cavities; a cutting assembly including a first cutting element and a second cutting element, which are respectively disposed within the first and second cavities, with the first cutting element moving towards the second cutting element; a driving assembly disposed on one side of the housing; and a push rod assembly disposed within the driving assembly and the housing, connected to the first and second cutting elements. The driving assembly drives the push rod assembly to move, and the push rod assembly pushes the first cutting element towards the second cutting element. This application uses the first and second cutting elements to cut the catheter within the cutting channel, automatically separating the infusion tubing and the puncture needle, thus reducing the likelihood of liquid splashing into the surrounding environment and minimizing environmental pollution.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a needle separation device. Background Technology

[0002] In hospital clinical practice, disposable arterial and venous puncture needles typically require the separation of the medical silicone tubing from the sharps portion, which is then disposed of separately in medical waste bags and sharps containers. This not only ensures proper sorting of contaminated waste according to medical regulations but also prevents sharps-related injuries and infections during waste collection. For example, intravenous infusion tubing contains a plastic needle used to puncture the rubber cap of the infusion bottle; when discarding it, the tubing needs to be cut to separate the plastic needle from the tubing. Similarly, in hemodialysis treatment, the puncture needle on the blood line must be cut off from the tubing. These are common procedures in medical institutions. Separating the needle eliminates the need to discard the transfusion / infusion tubing in the sharps container, reducing its space requirements and lowering waste disposal costs.

[0003] In the existing technology, during the above process, the operator usually uses scissors to cut and separate the infusion tube and the puncture needle. This operation method not only causes the liquid in the tube to splash into the surrounding environment due to the stress generated by shearing, causing pollution, but also increases the risk of cross-infection due to repeated touching of the scissor handle. Summary of the Invention

[0004] In view of this, this application provides a catheter-needle separation device to solve the problems in the prior art where operators use scissors to cut and separate the infusion tube and puncture needle, resulting in the liquid in the tube being easily splashed into the surrounding environment due to the stress generated by shearing, causing pollution, and the risk of cross-infection from touching the tube.

[0005] This application discloses a needle separation device, comprising:

[0006] The outer shell is provided with a cutting channel, a first cavity and a second cavity, wherein the cutting channel is disposed between the first cavity and the second cavity;

[0007] The cutting assembly includes a first cutting element and a second cutting element, which are respectively disposed in the first cavity and the second cavity. The first cutting element moves toward the second cutting element and is used to cut the needle in the cutting channel.

[0008] A drive assembly is disposed on one side of the housing;

[0009] A push rod assembly is disposed within the drive assembly and the housing, and the push rod assembly is connected to the first cutting member and the second cutting member. The drive assembly is used to drive the push rod assembly to move, and the push rod assembly is used to push the first cutting member toward the second cutting member.

[0010] Optionally, the needle separation device further includes a slide assembly;

[0011] The slide rail assembly is disposed at the bottom of the housing, and a slide rail groove is provided inside the slide rail assembly, which communicates with the cutting channel.

[0012] Optionally, the needle separation device further includes a fixing component;

[0013] The fixing component is disposed on one side of the slide assembly, and the fixing component is connected to the slide assembly via a slide connecting rod. The fixing component is used for embedding the treatment cart.

[0014] Optionally, the first cutting component includes a movable blade holder, a blade holder guide rail, and a first cutting blade;

[0015] The movable blade holder is disposed on the blade holder guide rail, and the movable blade holder and the blade holder guide rail are disposed perpendicular to each other. The first cutting blade is disposed on the movable blade holder, and the movable blade holder is used to drive the first cutting blade to slide along the blade holder guide rail.

[0016] Optionally, the inner wall of the first cavity is provided with a blade groove and a blade rail. The blade rail is disposed on the side of the blade groove facing the cutting channel and extends to the cutting channel. The blade rail is connected to the blade groove. The blade groove is used to place the first cutting piece, and the first cutting piece slides in the blade rail.

[0017] Optionally, the second cutting element includes a stationary blade holder and a second cutting blade;

[0018] The stationary blade holder is located at the bottom of the second cavity, the second cutting blade has a second through hole, and the stationary blade holder has a second pin, which is inserted into the second through hole.

[0019] Optionally, the fixing assembly includes a fixing frame, a slide rail bracket, a mounting arm, and a clamp;

[0020] The slide rail bracket is located on one side of the fixed frame, the slide rail connecting rod is connected to the slide rail groove, the mounting arm is located at both ends of the fixed frame, and the clamp is located on the mounting arm. The clamp is used to secure the treatment cart.

[0021] Optionally, the needle separation device further includes a handle assembly disposed at the end of the push rod assembly, the handle assembly being used to manually push the push rod assembly.

[0022] Optionally, the push rod assembly further includes a limiting seat, which is fixedly mounted on the bottom plate of the housing;

[0023] The limiting seat is provided with a limiting seat opening, the moving tool seat is provided with a moving tool seat opening, and the stationary tool seat is provided with a stationary tool seat through hole. The push rod is sequentially inserted into the moving tool seat opening, the limiting seat opening, and the stationary tool seat through hole.

[0024] Optionally, the drive assembly includes a drive housing, a first motor, and a control rail;

[0025] The drive housing forms an accommodating space, and the first motor and the control rail are both disposed within the accommodating space. The output end of the first motor is provided with a gear, and the control rail is disposed at the bottom of the accommodating space. A rack is provided on the control rail, and the rack meshes with the gear. The first motor is used to control the rack to slide on the control rail.

[0026] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a cutting channel, a first cavity, and a second cavity, with the cutting channel positioned between the first and second cavities. This allows the catheter to be inserted into the cutting channel, and the first and second cutting elements within the first and second cavities to cut the catheter. This eliminates the need for manual scissors to separate the infusion tubing and the puncture needle, enabling automatic separation and reducing the risk of liquid splashing into the environment, thus minimizing environmental pollution. Secondly, the cutting assembly includes a first cutting element and a second cutting element, respectively positioned within the first and second cavities. The first cutting element moves towards the second cutting element, producing… This device generates cutting force to cut the needles within the cutting channel, eliminating the need for manual scissors. Furthermore, it utilizes a drive assembly and a push rod assembly. The push rod assembly is connected to the first and second cutting components. The drive assembly drives the push rod assembly, which in turn pushes the first cutting component towards the second cutting component, enabling automated cutting of the needle separation device. All components are easily disassembled and maintained. In electronic control mode, acoustic and optical sensors allow the cutting operation to be triggered without human contact, reducing the risk of cross-infection from touch. Adjusting the device's installation height allows the sharp instrument to slide automatically into a sharps box located at the bottom of the treatment cart for retrieval without the operator bending over.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the needle separation device of this application;

[0030] Figure 2 This is a schematic diagram of the cutting component of this application;

[0031] Figure 3 This is a schematic diagram of the blade groove and blade rail of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the first cavity and the second cavity of this application;

[0033] Figure 5 This is a schematic diagram of the structure of the first and second cutting blades in the cutting state of this application;

[0034] Figure 6 This is a schematic diagram of the state structure when the needle is inserted according to this application;

[0035] Figure 7 This is a schematic diagram of the slide rail assembly of this application;

[0036] Figure 8 This is a structural schematic diagram of the push rod inlet and push rod outlet of this application;

[0037] Figure 9 This is a schematic diagram of the push rod assembly of this application;

[0038] Figure 10 This is a schematic diagram of the structure of the driver component of this application;

[0039] Figure 11 This is a structural schematic diagram of the handle assembly or drive assembly of this application in a cut state;

[0040] Figure 12 This is an exploded view of the handle assembly of this application;

[0041] Figure 13 This is a schematic diagram of the structure of the connection part of this application;

[0042] Figure 14 This is a schematic diagram of the structure of the fixing component of this application;

[0043] Figure 15 This is a schematic diagram of the clamp structure in this application;

[0044] Figure 16 This is a structural schematic diagram of the needle separation device of this application in its installed state.

[0045] In the figures, the following reference numerals are used: 10, needle; 100, outer casing; 110, cutting channel; 120, first cutter slit; 130, second cutter slit; 140, first cavity; 141, moving blade chamber cover; 142, blade groove; 143, blade rail; 144, blade groove opening; 150, second cavity; 151, push rod inlet; 152, push rod outlet; 153, stationary blade chamber cover; 160, slide connector; 200, cutting assembly; 210, the... 211. Cutting component; 212. Moving blade holder; 213. Blade holder guide rail; 214. First cutting blade; 215. First through hole; 216. First elastic element; 240. Second cutting component; 241. Second cutting blade; 242. Second through hole; 243. Stationary blade holder; 244. Second pin; 300. Drive assembly; 310. Drive housing; 320. First motor; 330. Control guide rail; 340. Gear; 350. Rack; 36. 0. Push plate hook; 370. Push plate mounting hole; 380. First limit switch; 390. Second limit switch; 400. Push rod assembly; 401. Push rod channel; 410. Push plate; 420. Push rod; 430. Limit seat; 440. Limit seat opening; 450. Moving tool holder opening; 451. Stationary tool holder through hole; 460. Tool holder tenon; 470. Marker; 480. Limit tenon; 500. Slide assembly; 510. Slide groove; 520. First cover plate 530, Second cover plate; 540, Rotating shaft; 550, Lock; 570, Slide rail connecting rod; 571, Slide rail mounting head; 600, Fixing assembly; 620, Fixing bracket; 630, Slide rail bracket; 640, Mounting arm; 650, Clamp; 651, Clamp rotating shaft; 660, First bracket; 700, Handle assembly; 710, Grip; 720, Handle handle; 730, Connecting part; 731, Connecting sleeve; 732, Pressure plate; 800, Sharps box. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of this application, the needle separation device provided in this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0048] This application provides a catheter-needle separation device to solve the problems in the prior art where operators use scissors to cut and separate the infusion tube and puncture needle, resulting in the liquid in the tube being easily splashed into the surrounding environment due to the stress generated by shearing, causing contamination, and the cross-infection caused by frequent touching of scissors and other objects.

[0049] Please see Figures 1 to 16 , Figure 1 This is a schematic diagram of the needle separation device of this application; Figure 2 This is a schematic diagram of the cutting component of this application; Figure 3 This is a schematic diagram of the blade groove and blade rail of this application; Figure 4 This is a schematic diagram of the structure of the first cavity and the second cavity of this application; Figure 5 This is a schematic diagram of the structure of the first and second cutting blades in the cutting state of this application; Figure 6 This is a schematic diagram of the state structure when the needle is inserted according to this application; Figure 7 This is a schematic diagram of the slide rail assembly of this application;

[0050] Figure 8 This is a structural schematic diagram of the push rod inlet and push rod outlet of this application; Figure 9 This is a schematic diagram of the push rod assembly of this application; Figure 10 This is a schematic diagram of the structure of the driver component of this application; Figure 11 This is a schematic diagram of the handle assembly of this application; Figure 12 This is an exploded view of the handle assembly of this application; Figure 13 This is a schematic diagram of the structure of the connection part of this application; Figure 14 This is a schematic diagram of the structure of the fixing component of this application; Figure 15 This is a schematic diagram of the clamp structure in this application; Figure 16 This is a structural schematic diagram of the needle separation device of this application in its installed state.

[0051] In one embodiment, such as Figures 1 to 16As shown, this application proposes a needle separation device, which may include a housing 100, a cutting assembly 200, a driving assembly 300, and a push rod assembly 400. The outer casing 100 may be provided with a cutting channel 110, a first cavity 140 and a second cavity 150, and the cutting channel 110 may be disposed between the first cavity 140 and the second cavity 150. The cutting assembly 200 may include a first cutting element 210 and a second cutting element 240, which may be disposed in the first cavity 140 and the second cavity 150 respectively. The first cutting element 210 moves toward the second cutting element 240, and the first cutting element 210 and the second cutting element 240 may be used to cut the needle 10 in the cutting channel 110. The driving assembly 300 may be disposed on one side of the outer casing 100. The push rod assembly 400 may be disposed in the driving assembly 300 and the outer casing 100, and the push rod assembly 400 may be connected to the first cutting element 210 and the second cutting element 240. The driving assembly 300 may be used to drive the push rod assembly 400 to move, and the push rod assembly 400 may be used to push the first cutting element 210 toward the second cutting element 240.

[0052] In the embodiments of this application, a drive assembly 300 and a push rod assembly 400 are used. The push rod assembly 400 is connected to the first cutter 210 and the second cutter 240. The drive assembly 300 drives the push rod assembly 400 to move, and the push rod assembly 400 pushes the first cutter 210 and the second cutter 240 to move towards each other, so that the needle separation device can achieve automated cutting. Secondly, this application provides a cutting channel 110, a first cavity 140 and a second cavity 150, and the cutting channel 110 is located between the first cavity 140 and the second cavity 150. The needle 10 is placed in the cutting channel 110, and the first cutter 210 and the second cutter 240 in the first cavity 140 and the second cavity 150 are used to cut the needle 10, so that the operator no longer needs to manually use scissors to cut the infusion tube and... The puncture needle cutting and separation mechanism automatically separates the infusion tube and the puncture needle, preventing the liquid inside the tube from splashing into the surrounding environment and reducing environmental pollution. Furthermore, the cutting assembly 200 includes a first cutting element 210 and a second cutting element 240, respectively disposed within a first cavity 140 and a second cavity 150. The first cutting element 210 moves towards the second cutting element 240, generating a cutting force to cut the tube needle 10 within the cutting channel 110, eliminating the need for manual scissors. In addition, in electronically controlled mode, the cutting operation can be triggered without human contact with the tube needle separation device via acoustic and optical sensors, reducing the risk of cross-infection from touch. Moreover, the sharp instrument automatically slides into the sharp instrument box 800 for recycling without the operator needing to bend over.

[0053] Optionally, the cutting channel 110 can also be configured as a funnel-shaped cutting channel 110 that is wide at the top and gradually narrows as it goes deeper, improving the ease of inserting the needle 10.

[0054] In some embodiments, such as Figure 7 As shown, the needle separation device may also include a slide assembly 500, which may be disposed at the bottom of the housing 100. A slide groove 510 may be provided in the slide assembly 500, which may be connected to the cutting channel 110 so that the needle tip of the needle 10 cut in the cutting channel 110 may slide directly out through the slide groove 510 to the sharps box 800.

[0055] Optionally, such as Figure 16 As shown, a sharps box 800 is also placed at the outlet of the slide groove 510 at the bottom of the treatment cart to store the needles coming out of the cutting channel 110.

[0056] Optionally, such as Figure 7 As shown, the slide assembly 500 may include a first cover plate 520 and a second cover plate 530. One side of the first cover plate 520 can be connected to the second cover plate 530 via a pivot 540, and the other side of the first cover plate 520 can be connected to the second cover plate 530 via a latch 550. A hollow slide groove 510 is formed between the first cover plate 520 and the second cover plate 530. When the latch 550 is opened, the second cover plate 530 can rotate horizontally along the door pivot.

[0057] Optionally, a slide port connector 160 may be provided between the slide assembly 500 and the housing 100. One end of the slide port connector 160 may be fixedly connected to the outlet end of the cutting channel 110, and the other end of the slide port connector 160 may be embedded in the first cover plate 520 and the second cover plate 530, that is, embedded in the slide groove 510, so that the slide assembly 500 and the housing 100 are tightly connected.

[0058] In some embodiments, such as Figure 14 As shown, the needle separation device may also include a fixing component 600. The fixing component 600 may be disposed on one side of the slide assembly 500. The fixing component 600 may be connected to the slide assembly 500 via the slide connecting rod 570. The fixing component 600 may be used for embedding treatment carts. The needle 10 that has been pulled out of the patient's body after treatment may be directly inserted into the cutting channel 110. In addition to being able to complete the shearing, the cutting channel 110 is also narrow and deep enough that the liquid that flies out during the shearing is not easy to splash around.

[0059] Optionally, one end of the slide rail connecting rod 570 is fixedly connected to or integrally formed connected to 520, such as... Figure 7 and Figure 14As shown, the other end of the slide rail connecting rod 570 is provided with a slide rail mounting head 571. The slide rail mounting head 571 is a thin plate that is embedded in the slide rail bracket 630. The slide rail bracket 630 is provided with a mounting groove, which allows the slide rail mounting head 571 to be embedded and installed.

[0060] Optionally, the slide rail connecting rod 570 is configured as a telescopic rod with a locking sleeve, which can be locked with the locking sleeve after being adjusted to a suitable length to restrict its axial movement.

[0061] In some embodiments, such as Figure 14 As shown, the fixing component 600 may include a fixing frame 620, a slide bracket 630, a mounting arm 640, and a clamp 650. The slide bracket 630 may be disposed on one side of the fixing frame 620, the slide connecting rod 570 may be connected to the fixing frame 620, the mounting arm 640 may be disposed at both ends of the fixing frame 620, and the clamp 650 may be disposed on the mounting arm 640. The clamp 650 may be used to clamp the treatment cart so that the fixing component 600 is firmly fixed on the treatment cart, thereby realizing the fixing of the needle separation device on the treatment cart.

[0062] Optionally, a first bracket 660 may be provided on the side of the fixing frame 620 away from the slide bracket 630, and the first bracket 660 may be used to place the drive assembly 300 so that the needle separation device becomes a whole.

[0063] The mounting bracket 620 is equipped with hooks for mounting and securing the slide rail bracket 630. Two first supports 660 are fixedly connected to the back, and the control drive housing 310 is installed using screws and nuts through holes in the first supports 660. Two symmetrical mounting arms 640 with locking telescopic rod structures extend from each side. Clamps 650 are fixedly connected to the ends of the mounting arms 640. The inner ring of the clamps 650 has an anti-slip pad providing friction damping. The clamps open and close by rotating a shaft 651 on one side, and are tightened and fixed to the columns of the treatment cart using screws on the outer circumference of the other side. By adjusting the length of the telescopic rod, the mounting arms 640 not only mount the entire mounting bracket 620 onto the two columns on one side of the treatment cart, but also allow for axial adjustment of the position of the mounting bracket 620 body relative to the columns. Locking is used to lock the telescopic rod to prevent movement of the mounting bracket 620 body along the axial direction of the telescopic rod.

[0064] In some embodiments, such as Figure 2 As shown, a movable blade holder 211 and a blade holder guide rail 212 may be provided at the bottom of the first cavity 140. The movable blade holder 211 may be provided on the blade holder guide rail 212, and the movable blade holder 211 and the blade holder guide rail 212 may be provided perpendicular to each other. The movable blade holder 211 may slide along the blade holder guide rail 212 so that the first cutting piece 210 slides along the blade holder guide rail 212 and comes into contact with the second cutting piece 240 to realize the cutting function.

[0065] Optionally, both the moving blade holder 211 and the stationary blade holder 243 can be made of a material with a certain degree of ductility, such as plastic. The moving blade holder 211 and the first pin 216 are integrally molded plastic components. The plastic material can give the first pin 216 a certain degree of toughness, allowing the first pin 216 to be better inserted into the first through hole 214 and fix the first cutting blade 213.

[0066] Optionally, a first elastic element 215 may be provided between the movable tool holder 211 and the inner wall of the first cavity 140. The first elastic element 215 can be used to assist the movable tool holder 211 in resetting.

[0067] The moving tool holder 211 is also equipped with a hook, which can be hooked by the first elastic element 215.

[0068] Optionally, two first elastic elements 215 may be provided, and the first elastic element 215 may be a spring or other elastic element. The first elastic element 215 is provided with a ring, which is used to hook onto the hook on the moving tool holder 211.

[0069] Optionally, the first cutting member 210 may include a first cutting blade 213, which may be provided with a first through hole 214, and the moving blade holder 211 may be provided with a first pin 216, which may be configured as a cylindrical protrusion. The first pin 216 is inserted into the first through hole 214 so that the first cutting blade 213 is fixed on the first pin 216.

[0070] Optionally, the first pin 216 may be made of a tough plastic with a circumferential outer diameter that is close to and slightly smaller than the diameter of the first through hole 214, so as to provide stability to one end of the installed first cutter 213 through the friction of the material and prevent it from easily falling off.

[0071] Optionally, the housing 100 may also be provided with a moving blade chamber cover 141, which may be located on the side wall of the first cavity 140 away from the second cavity 150. The moving blade chamber cover 141 is used to open the first cavity 140 to facilitate the installation or removal of the first cutting blade 213.

[0072] In some embodiments, such as Figure 3As shown, a blade groove 142 and a blade rail 143 may be provided on the inner wall of the first cavity 140. The blade rail 143 may be provided on the side of the blade groove 142 facing the cutting channel 110 and extending into the cutting channel 110. The blade rail 143 is connected to the blade groove 142. A blade groove opening 144 is provided on the side of the blade groove 142 facing the moving blade chamber cover 141. The blade groove 142 is used to place the edge portion of the first cutting blade 213 away from the cutting channel 110. The blade rail 143 is very narrow in height, just enough to accommodate the first cutting blade. The first cutting blade 213 has an edge portion near the cutting channel 110 that slides within the blade rail 143. The first cutting blade 213 can be tilted into the blade groove 142 through the blade groove opening 144, and then the cutting edge portion of the first cutting blade 213 is embedded into the blade rail 143 from the blade groove 142. Under the traction of the moving blade holder 211, the first cutting blade 213 can slide within the blade rail 143. The blade groove 142 allows the first cutting blade 213 to be installed into the blade rail 143 at an inclined angle, and the blade rail 143 can also prevent the blade from loosening.

[0073] Optionally, the blade groove 142 gradually increases in the direction toward the moving blade chamber cover 141, so that the first cutting blade 213 can be easily installed. As the blade groove 142 extends toward the cutting channel 110, the internal extension opening gradually narrows and eventually connects to the blade rail 143. The upper and lower edges of the blade rail 143 are parallel, and the height of the blade rail 143 is slightly greater than the thickness of the blade, so that the first cutting blade 213 can slide along the blade rail 143. Together with the first pin 216, the first cutting blade 213 is restricted to move horizontally and will not slip or become misaligned. It also prevents the blade from tilting upwards during movement.

[0074] Optionally, the inner wall of the second cavity 150 is also provided with a blade groove 142, a blade rail 143 and a blade groove opening 144, which are symmetrically arranged with the blade groove 142 and blade rail 143 in the first cavity 140, and the structure and function are exactly the same as those in the first cavity 140, which will not be described in detail here.

[0075] Optionally, the blade rails 143 in the first cavity 140 and the second cavity 150 are completely connected, and the two blade rails 143 are respectively connected to the first cut slit 120 and the second cut slit 130. The first cutting blade 213 is set at the same horizontal line as the first cut slit 120, and the second cutting blade 241 is set at the same horizontal line as the second cut slit 130. The heights of the two blade rails 143, the first cut slit 120 and the second cut slit 130 are all the same.

[0076] In some embodiments, a stationary blade holder 243 may be provided at the bottom of the second cavity 150. The bottom of the stationary blade holder 243 is fixed to the outer casing 100. The stationary blade holder 243 is different from the moving blade holder 211 and does not move during operation. The second cutting member 240 may include a second cutting blade 241, which may be provided with a second through hole 242. The stationary blade holder 243 may be provided with a second pin 244, which may be configured as a cylindrical protrusion. The second pin 244 can be inserted into the second through hole 242 to fix the second cutting blade 241 on the second pin 244.

[0077] Optionally, the second pin 244 may be made of a tough plastic with a circumferential outer diameter that is close to and slightly smaller than the diameter of the second through hole 242, so as to provide stability to one end of the installed second cutter 241 through the friction of the material and prevent it from easily falling off.

[0078] Optionally, the housing 100 may also be provided with a stationary blade chamber cover 153. The stationary blade chamber cover 153 and the moving blade chamber cover 141 may be symmetrically arranged. The stationary blade chamber cover 153 is used to open the second cavity 150 to facilitate the installation, disassembly and maintenance of the second cutting blade 241 and its internal components.

[0079] Optionally, a first cutting slit 120 and a second cutting slit 130 may be respectively provided on the inner wall of the cutting channel 110, and the first cutting slit 120 and the second cutting slit 130 may be arranged opposite to each other, and the first cutting slit 120 and the second cutting slit 130 may be respectively connected to the first cavity 140, the cutting channel 110 and the second cavity 150.

[0080] Optionally, the first cutting blade 213 is arranged on the same horizontal line as the first cutting slot 120, and the second cutting blade 241 is arranged on the same horizontal line as the second cutting slot 130. The blade rails 143 in the first cavity 140 and the second cavity 150 are completely connected, and the two blade rails 143 are respectively connected to the first cutting slot 120 and the second cutting slot 130. The heights of the two blade rails 143, the first cutting slot 120 and the second cutting slot 130 are the same.

[0081] Optionally, the height of the first cut slit 120 can be set slightly higher or lower than the second cut slit 130, so that the height of the first cutting blade 213 is slightly higher or lower than the first cutting blade 213. Correspondingly, the blade rail 143 in the first cavity 140 is also slightly higher or lower than the blade rail 143 in the second cavity 150. At this time, the blade rail 143 in the first cavity 140 is completely connected with the first cut slit 120 and has the same height, and the blade rail 143 in the second cavity 150 is completely connected with the second cut slit 130 and has the same height, which facilitates the formation of cutting force on the needle 10.

[0082] Optionally, the blade of the second cutting blade 241 may extend beyond the second cutting slit 130 toward the cutting channel 110, that is, slightly protruding the blade tip, so as to facilitate contact with the first cutting blade 213 to form a cutting force.

[0083] Optionally, the blades of the first cutting blade 213 and the second cutting blade 241 are identical in shape and interchangeable. Of the two sides with the largest area of ​​the first cutting blade 213, one side is completely flat and the other side is sharp, with the sharp end having a beveled blade.

[0084] The specific installation process of the cutting assembly 200 is as follows: Open the moving blade chamber cover 141, and the first cutting blade 213 is inserted obliquely from the opening of the blade groove 142. Gradually, the cutting edge of the first cutting blade 213 is embedded into the blade rail 143, and finally, the side of the first cutting blade 213 is embedded into the blade rail 143. Using the toughness of the material itself, the two first through holes 214 of the first cutting blade 213 are aligned with the first pins 216 on the moving blade holder 211 and installed. The two first pins 216 and the constraint of the blade rail 143 stabilize the first cutting blade 213. The bottom of the moving blade holder 211 is connected to the blade holder guide rail 212, and the entire assembly can move along the trajectory of the blade holder guide rail 212. There are two first elastic elements 215 on the inner wall of the first inner cavity. The head rings can hook onto the hooks on the moving blade holder 211. The first elastic elements 215 are used to pull the moving blade holder 211 back to its original position. The stationary blade holder 243 is fixed on the second cavity 150. When installing the second cutting blade 241 on the stationary blade holder 243, the blade surface of the second cutting blade 241 needs to be installed in the opposite direction to the moving first cutting blade 213, so that the two blades fit together during cutting. After the first cutting blade 213 is installed, a part of its blade area will be exposed from the second blade seam 130 into the cutting channel 110 to ensure that the joint point during cutting is located within the cutting channel 110. The blade of the moving blade holder 211 can be completely hidden within the first cavity 140.

[0085] In some embodiments, such as Figure 11 and Figure 12 As shown, the needle separation device may also include a handle assembly 700, which may be disposed at the end of the push rod assembly 400. The handle assembly 700 can be used to manually push the push rod assembly 400. When the drive assembly 300 fails and cannot drive the push rod assembly 400, the handle assembly 700 can be used to pull the push rod assembly 400 so that the needle separation device can work normally.

[0086] Optionally, the handle assembly 700 may include a grip 710, a handle bar 720, and a connecting part 730. The grip 710 may be connected to the handle bar 720, and the handle bar 720 may be connected to the end of the push rod assembly 400 through the connecting part 730, so that pulling the handle bar 720 through the grip 710 will drive the push rod assembly 400 to move.

[0087] Optionally, such as Figure 12 and Figure 13 As shown, the connecting part 730 may include a connecting sleeve 731 and a pressure plate 732. The connecting sleeve 731 may be disposed on the handle assembly 700, and the pressure plate 732 may be disposed at the end of the handle rod 720. The connecting sleeve 731 and the pressure plate 732 are connected to each other, and the connecting sleeve 731 is wrapped around the pressure plate 732. One end of the connecting sleeve 731 has an opening for the handle rod 720 to pass through, and the other end of the connecting sleeve 731 is provided with an internal thread. The end of the push rod 420 is provided with an external thread, and the internal thread can match the external thread.

[0088] In the event of a malfunction in the control system within the drive assembly 300, the handle assembly 700 can be used for manual control. The grip 710 can be cylindrical or irregularly shaped, or a groove suitable for finger gripping can be added to the grip 710 for easy gripping. The grip 710 can also be set to other shapes as needed, without any restrictions here.

[0089] The handle 720 can be designed to fold back, saving space, and its tail can also be operated by hand. The pressure plate 732 can be a flat cylinder, with its outer circumference enclosed by a circular connecting sleeve 731. The space enclosed by the connecting sleeve 731 is slightly larger than the volume of the pressure plate 732 to allow the pressure plate 732 to rotate freely within this space. The outwardly extending inner wall has threads that rotate and engage with the threads at the tail of the push rod 420. When installing the handle assembly 700, the pressure plate 732 needs to be pressed against the tail of the push rod 420, and the threads of the connecting sleeve 731 need to be rotated and engaged with the threads of the push rod 420. After the connecting sleeve 731 tightens the pressure plate 732 and presses against the tail of the push rod 420, preventing it from moving freely, the handle is fixedly connected to the push rod 420.

[0090] Optionally, such as Figure 9 and Figure 10 As shown, the push rod assembly 400 may include a push plate 410 and a push rod 420. The push plate 410 may be fixedly connected to one side of the push rod 420. The push plate 410 may be attached to the push plate hook 360 of the drive assembly 300, forming a close or attached state with the push plate hook 360. The push rod 420 may be used to push the moving blade holder 211 to move. Under the transmission action of the first elastic member 215 through the moving blade holder 211, the blade holder tenon 460 and the push rod 420, the push plate 410 will be reset after cutting. Its reset action is finally terminated by the limiting tenon 480 pressing against the limiting seat 430. During cutting, the push plate hook 360 only needs to push the push plate 410 to move towards the stationary blade holder 243.

[0091] In some embodiments, such as Figure 8 and Figure 9As shown, the push rod assembly 400 may further include a limiting seat 430, which can be fixedly mounted on the bottom plate of the housing 100 and located on one side of the cutting channel 110. That is, the entire push rod assembly 400 passes through the first cavity 140 and the second cavity 150 inside the housing 100 to form a push rod channel 401, and the push rod channel 401 is perpendicular to the cutting channel 110 and is not connected to it. A limiting seat opening 440 may be provided on the limiting seat 430, and a moving knife holder 211 may be provided with a moving knife holder opening. The stationary knife holder 243 can be provided with a stationary knife holder through hole 451. The push rod 420 can be inserted into the moving knife holder opening 450, the limit seat opening 440 and the stationary knife holder through hole 451 in sequence. When the push rod assembly 400 reciprocates, under the action of the knife holder tenon 460, the knife holder tenon 460 drives the moving knife holder 211 to move, thereby realizing that the push rod assembly 400 drives the moving knife holder 211 to slide along the knife holder guide rail 212, so that the first cutting piece 210 moves toward the second cutting piece 240.

[0092] Optionally, the push rod 420 also integrally provides a tool holder tenon 460, and the tool holder tenon 460 is located at the bottom of the movable tool holder 211. The tool holder tenon 460 is located at the end facing the limit seat 430. The opening direction of the movable tool holder opening 450 is horizontal. After the tool holder tenon 460 on the push rod passes horizontally through these openings, it rotates 90° (e.g., Figure 10 After that (as shown), the head of the tool holder tenon 460 will be vertically downward, and the entire tool holder tenon 460 will lock the moving tool holder 211. At this time, the moving tool holder 211 can achieve integrated movement with the push rod assembly 400.

[0093] Optionally, two tool holder tenons 460 are provided. After the push rod 420 is installed, the two tool holder tenons 460 are located on both sides of the movable tool holder 211. The spacing between the two tool holder tenons 460 is close to and slightly larger than the width of the movable tool holder 211, so that it can clamp the movable tool holder 211 and ensure that the movable tool holder and the push rod assembly 400 can move synchronously.

[0094] Optionally, the push rod 420 is also integrally provided with a limiting tenon 480. The extension direction of the limiting tenon 480 is parallel to the extension direction of the tool holder tenon 460. After installation, the limiting tenon 480 is located between the limiting seat 430 and the stationary tool holder 243. The opening directions of the moving tool holder opening 450 and the limiting seat opening 440 are both transverse. After the limiting tenon 480 on the push rod passes transversely through these openings, it rotates 90° (e.g., ...). Figure 10 After (as shown), the head of the limiting tenon 480 will be vertically downward, and the entire limiting tenon 480 will lock the limiting seat 430. At this time, the limiting tenon 480 will move between the limiting seat 430 and the stationary knife seat 243 following the push rod 420.

[0095] Optionally, the push rod 420 can be configured as a long cylindrical body, and the push plate 410 can be configured as a flat cuboid. The push rod 420 is provided with an external thread that can mate with the internal thread of the connecting sleeve 731. There are three protruding tenons of the same shape and size in the middle of the push rod 420, namely the limiting tenon 480 and two tool holder tenons 460. A marker 470 for external observation and positioning is provided at the push rod 420 between the tool holder tenon 460 and the push plate 410, which forms a 90° angle with the protruding direction of the tenon. After the tube needle separation device is installed, the two sides of the marker 470 will be attached to the outer shell 100 and the drive shell 310 respectively to indicate whether the installation position of the push rod 420 is correct.

[0096] Optionally, a push rod inlet 151 is also provided on the side wall of the first cavity 140 of the moving tool chamber cover 141. The push rod inlet 151 is a through hole with a shape similar to the cross-section of the push rod 420 and its tenon. Its surface area is slightly larger than the cross-section of the push rod 420 and its tenon, allowing the push rod and tenon to be inserted from the tail direction, so that the tenon of the push rod 420 can enter smoothly. The push rod 420 is easy to disassemble and assemble, and is convenient for maintenance during use. During installation, the tail of the push rod 420 is inserted from the push rod inlet 151, and then passes through the moving tool seat opening 450 on the moving tool seat 211. The inside of the moving tool seat opening 450 can be set as a round hole to allow the push rod 420 to pass through. Similarly, a round hole is also provided on the limiting seat 430 to allow the push rod 420 to pass through, and finally it extends out of the outer shell 100 from the circular push rod outlet 152.

[0097] Optionally, the moving tool holder opening 450 is set as a round hole, and then the limiting tenon 480 will pass through the push rod inlet 151, the moving tool holder opening 450, and the limiting seat opening 440 in sequence, while the tool holder tenon 460 passes through the push rod inlet 151 and the moving tool holder opening 450. The tool holder tenon on the left side only passes through the push rod inlet 151.

[0098] The specific installation process of the push rod assembly 400 is as follows: Place the push rod 420 with the tenon protruding horizontally, ensuring its axial cross-section aligns with the shape of the push rod inlet 151. Insert the push rod tail into the housing 100. The push rod 420 and its tenon pass through the moving tool holder opening 450 and the limiting seat opening 440 in a straight line. The push rod tail passes through the stationary tool holder through hole 451 and extends out of the housing from the push rod outlet 152 at the other end until the marker 470 is aligned with the outer surface of the housing 100 at the push rod inlet 151. At this point, the limiting tenon 480 has moved to the limiting seat. At the rear of 430, open the moving tool chamber cover 141, and push the moving tool seat 211 between the two tool seat tenons 460 by hand. Rotate the push rod 420 90° so that the tenon protrusion faces vertically downward. The two tool seat tenons 460 will clamp the moving tool seat 211, allowing the push rod 420 to be controlled. At the same time, the limiting tenon 480 will also be blocked by the rear of the limiting seat 430, preventing the push rod 420 from moving further towards its head. Hook the head rings of the two first elastic elements 215 onto the hooks on the moving tool seat 211 by hand. At this point, the installation of the push rod 420 inside the outer casing 100 is completed.

[0099] In some embodiments, such as Figure 10 As shown, the drive assembly 300 may include a drive housing 310, a first motor 320, and a control rail 330. The drive housing 310 forms an accommodating space. Both the first motor 320 and the control rail 330 can be disposed within the accommodating space. A gear 340 may be disposed at the output end of the first motor 320. The control rail 330 may be disposed at the bottom of the accommodating space. A rack 350 may be disposed on the control rail 330. The rack 350 can mesh with the gear 340. The control box system controls the first motor 320 to rotate, so that the gear 340 drives the rack 350 to slide on the control rail 330.

[0100] Optionally, a push plate hook 360 can be fixedly connected to one side of the rack 350. The push plate hook 360 can cooperate with the push plate 410. The push plate 410 can be used to push the push rod 420 to move. When the gear 340 drives the rack 350 to slide on the control guide rail 330, the push plate hook 360 pushes the push plate 410, thereby pushing the push rod 420 to move. The push plate hook 360 forms a semi-enclosed structure on the push plate 410 in the mutual space with the push plate 410 and can limit the rotation angle of the push plate 410 in the axial direction of the push rod 420 to less than 45°, ensuring that the tenon on the push rod 420 will not fall off from the moving knife seat opening 450 and the limit seat opening 440 during the operation of the needle separation device.

[0101] Optionally, such as Figure 11As shown, the drive assembly 300 may further include a first limit switch 380 and a second limit switch 390. The first limit switch 380 may be located at one end of the accommodating space away from the housing 100. When the rack 350 moves away from the housing 100, the pusher hook 360 will eventually touch the first limit switch 380. The first limit switch 380 senses the signal and sends it to the control system to control the first motor 320 to stop rotating. During this process, the pusher assembly 400 will also retract the moving tool holder 211 driven by the first elastic element 215. Under the action of the limit switch, it moves towards the push plate hook 360 and finally approaches and fits the push plate hook 360; the second limit switch can be set in the accommodating space at one end facing the outer shell 100. When the rack moves and touches the second limit switch 390, the second limit switch 390 senses the signal and sends it to the control system to control the first motor 320 to rotate in the opposite direction. During this process, the push plate hook 360 pushes the push rod assembly 400 to move and is driven by the moving knife seat 211 to finally drive the first cutting knife 213 to move towards the second cutting knife 241 and complete the cutting at the cutting point.

[0102] Optionally, such as Figure 10 As shown, the push rod assembly also includes a marker 470, which is exposed in the gap between 300 and 100. The marker 470 is used to ensure the accuracy of the installation positions of the drive assembly 300, push rod assembly 400, cutting assembly 200, and housing 100. When the push rod assembly 400 is pulled back by the first elastic element 215, the limiting tenon 480 will eventually be held by the limiting seat 430, thereby ensuring that the travel distance of the first cutting blade 213 when it reaches the cutting point where the two cutting blades intersect and then resets is constant. This distance is defined as the cutting stroke of the device. Since the push plate 410 and the push plate hook 360 are close but not fixedly connected, the prerequisite for achieving accurate cutting stroke is that the distance that the rack 350 pushes the push plate 410 in the direction of the second limit switch 390 is consistent with the cutting stroke. Therefore, whether the depth of the push rod assembly 400 extending into the accommodating space of the drive assembly 300 is appropriate needs to be determined by observing the marker 470 during installation.

[0103] Optionally, such as Figure 10As shown, the drive housing 310 may also be provided with a control switch interface (not shown) for connecting a control switch and a push plate mounting hole 370. The opening shape of the push plate mounting hole 370 is rectangular at the top and its size is slightly larger than the largest area of ​​the push plate 410. Below the rectangular opening is a strip-shaped opening with a width slightly larger than the diameter of the push rod 420, allowing the push plate 410 to extend into the drive housing 310 from the top opening and then the push rod 420 to be installed downwards into the receiving space. The bottom of the drive housing 310 has strip-shaped mounting screws for fixing, and along their extension direction, the drive assembly 300 can be adjusted to install in the mounting position with the mounting bracket 620. When installing the screws and nuts, the door of the drive housing 310 can be opened to facilitate reaching into the chassis for operation.

[0104] Optionally, the drive assembly 300 also includes a battery that provides the necessary power to the entire system and is periodically charged. The operation of the drive assembly 300 requires an external control switch connected via a communication line from the control switch interface. This control switch can be triggered by non-contact methods such as motion sensing or voice control to avoid contamination from hand contact. The switch can be installed in a suitable location on the treatment cart according to the operator's needs, and the communication line should be secured and organized.

[0105] Optionally, the first motor 320 can rotate the gear 340 on its output shaft to drive the meshing rack 350 to move along the control guide rail 330, thereby controlling the push rod 420 to move in the same direction via the push plate hook 360. The push plate hook 360 forms a semi-enclosed structure on the push plate 410 in the mutual space with the push plate 410 and can limit the rotation angle of the push plate 410 in the axial direction of the push rod 420 to less than 45°, ensuring that the tenon on the push rod 420 will not fall off from the moving knife seat opening 450 and the limit seat opening 440 during the operation of the needle separation device.

[0106] When the control system receives the working signal from the control switch, the first motor 320 drives the rack 350 to move in the direction of the second limit switch 390. After triggering the sensing signal of the second limit switch 390, the motor rotates in the opposite direction to drive the rack 350 to move in the direction of the first limit switch 380. After triggering the sensing signal of the first limit switch 380, the motor stops rotating. The above state is one working cycle of the drive component 300.

[0107] When the first motor 320 is in operation, the control system will not increase the working cycle of the drive component 300 even if it receives a working signal. The control system will only start the first motor 320 to complete another working cycle when the first motor 320 stops working. This reduces the number of additional cuts caused by the control switch being accidentally triggered, and ensures the safety of the tube needle separation device.

[0108] The specific working principle of the needle separation device is as follows: Hold the medical tubing with a section of tubing remaining, ensuring that the holding point is outside the entrance of the cutting channel 110. Insert the section of medical silicone tubing with the needle tip into the cutting channel 110 from the entrance, ensuring that the overall height of the needle tip is below the horizontal plane of the first cutting blade 213 and the second cutting blade 241. Then, issue a working command to the external control switch. The electrical signal activates the working program of the control system via the communication line connected to the control switch interface. The first motor 320 drives the rack 350 to move towards the outer casing 100. The push plate hook 360 pushes the push plate 410. The push plate 410, through the transmission of the push rod 420, the blade holder tenon 460, and the moving blade holder 211, ultimately causes the first cutting blade 213 of the moving blade holder 211 to extend from the first cutting slot 120 to cut the tubing. Under the premise that all components are correctly installed as determined by the marker 470, the rack 350... When the second limit switch 390 is touched, the first cutting blade 213 and the second cutting blade 241 are in the closed position, thus completing the cutting and separating the tube needle 10. The needle tip falls naturally due to gravity, passes through the slide groove 510 and falls into the feed port of the sharps box 800 through the bottom opening, thus realizing the sharps recycling. Then the first motor 320 rotates in the reverse direction to drive the rack 350 back to its position. When the push plate hook 360 touches the first limit switch 380, the motor stops working. During this process, the moving blade holder 211 will return to its position under the contraction of the first elastic element 215 that has been pulled apart, and will drive the push rod 420 back to its position through the blade holder tenon 460. When the push rod 420 moves along its axial direction, it will be restricted by the push rod inlet 151, the limit seat 430, the stationary blade holder through hole 451 and the push rod outlet 152 and will not deviate axially, thus providing stability for the moving blade holder 211 during its movement. When a control system malfunction prevents the push rod assembly 400 from pushing the moving cutter holder 211, the handle 710 can be manually pulled to drive the push rod assembly 400 to complete the cutting. After releasing the handle 710, the push rod assembly 400 returns to its original position under the action of the first elastic element 215.

[0109] The needle separation device of this application can also be cleaned and maintained regularly. Regular cleaning and maintenance can reduce the occurrence of infection, as detailed below:

[0110] After each shift, the needle separation device requires only a simple procedure to clean and disinfect the heavily contaminated areas. After removing the outer casing 100 from the device, open the moving blade chamber cover 141 and the stationary blade chamber cover 153. Remove the first cutting blade 213 and the second cutting blade 241, and discard them as medical waste. After removing the first cutting blade 213 and the second cutting blade 241, the entrance to the cutting channel 110, the cutting channel 110 itself, and the inner wall of the slide connector 160 can be wiped clean and disinfected without being scratched by the first cutting blade 213 and the second cutting blade 241. Open the latch 550 of the slide assembly 500 slide groove 510, and rotate to open the second cover plate 530 to wipe clean and disinfect the inside of the slide groove 510. Other non-heavily contaminated areas are cleaned and disinfected according to the actual usage.

[0111] The needle separation device of this application also has the following advantages: First, since the cutting point is located inside the cutting channel 110, it can, to a certain extent, prevent contaminating liquids in the medical silicone tubing from splashing inside the device during the cutting process, making it less likely for them to directly spray and spread to the outside. It also reduces the risk of accidental injury to the human body due to operator negligence during cutting. Second, in electronic control mode, the cutting operation can be completed without human contact using acoustic and optical sensors, reducing the risk of cross-infection from touch. Furthermore, by adjusting the installation height of the device, the sharp instrument can slide automatically into the sharp instrument box 800 located at the bottom of the treatment cart for retrieval without the operator needing to bend over. Third, the needle separation device is easy to clean during use. Except for the first cutting blade 213 and the second cutting blade 241, which are consumables and need frequent replacement, other components can be wiped clean, disinfected, and recycled, resulting in low operating costs. Furthermore, this needle separation device facilitates maintenance and repair. Its modular design, which allows for easy disassembly and assembly, makes component replacement simple and quick. Only damaged or malfunctioning parts need to be replaced, preventing the entire device from becoming unusable due to the failure of a single component, thus reducing operating costs to some extent. Moreover, the needle separation device can be freely adjusted in a certain spatial dimension during installation, exhibiting adaptability and flexibility. It can be mounted on various sizes of treatment carts. Its external mounting feature, achieved through adjustable mounting arms 640, clamps 650, and slide rail connecting rods 570, allows for placement in the appropriate position, aligning the bottom opening of the slide rail groove 510 with the feed inlet of the sharps box 800. Normal operation is then achieved by adjusting the relative positions of the cutting assembly 200, push rod assembly 400, and drive assembly 300.

[0112] In summary, the housing 100 of this application is provided with a cutting channel 110, a first cavity 140, and a second cavity 150, with the cutting channel 110 disposed between the first cavity 140 and the second cavity 150. The cutting assembly 200 includes a first cutting element 210 and a second cutting element 240, which are respectively disposed within the first cavity 140 and the second cavity 150, such that the first cutting element 210 moves toward the second cutting element 240. The first cutting element 210 and the second cutting element 240 are used to cut the needle 10 within the cutting channel 110. The drive assembly 300 is disposed on one side of the housing 100, and the push rod assembly 400 is disposed within the drive assembly 300 and the housing 100, connecting the push rod assembly 400 to the first cutting member 210 and the second cutting member 240. The drive assembly 300 drives the push rod assembly 400 to move, pushing the first cutting member 210 towards the second cutting member 240. This eliminates the need for manual cutting of the infusion tubing and puncture needle in an open environment, allowing for automatic separation and minimizing the splashing of fluid from the tubing into the surrounding environment, thus reducing environmental pollution. Furthermore, the tubing separation device can be flexibly installed on various treatment carts. When cutting and separating the tubing 10, it can prevent the fluid from the infusion tubing from splashing directly into the surrounding area, facilitating the recovery of sharp instruments while significantly reducing the risk of cross-infection from contact. It also facilitates subsequent disinfection and maintenance, reducing operating costs.

[0113] It should be noted that the various optional implementation methods described in the embodiments of this application can be combined with each other or implemented individually, and the embodiments of this application do not limit this.

[0114] In the description of this application, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this application. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0115] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0116] The above embodiments are described with reference to the accompanying drawings. Other different forms and embodiments are also feasible without departing from the principles of this application, and therefore this application should not be construed as limiting the embodiments set forth herein. Rather, these embodiments are provided to make this application complete and perfect, and to convey the scope of this application to those skilled in the art. In the drawings, component dimensions and relative dimensions may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The terms “comprising” and / or “including”, when used in this specification, indicate the presence of said features, integers, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, elements, components, and / or groups thereof. Unless otherwise shown, numerical ranges, when stated, include the upper and lower limits of the range and any subranges therebetween.

[0117] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A needle separation device, characterized in that, include: The outer shell is provided with a cutting channel, a first cavity and a second cavity, wherein the cutting channel is disposed between the first cavity and the second cavity; The cutting assembly includes a first cutting element and a second cutting element, which are respectively disposed in the first cavity and the second cavity. The first cutting element moves toward the second cutting element and is used to cut the needle in the cutting channel. A drive assembly is disposed on one side of the housing; A push rod assembly is disposed within the drive assembly and the housing, and the push rod assembly is connected to the first cutting member and the second cutting member. The drive assembly is used to drive the push rod assembly to move, and the push rod assembly is used to push the first cutting member toward the second cutting member. The first cutting component includes a movable blade holder, a blade holder guide rail, and a first cutting blade; The movable blade holder is disposed on the blade holder guide rail, and the movable blade holder and the blade holder guide rail are disposed perpendicular to each other. The first cutting blade is disposed on the movable blade holder, and the movable blade holder is used to drive the first cutting blade to slide along the blade holder guide rail. The movable tool holder and the first cavity are provided with a first elastic element. The first elastic element is used to assist the movable tool holder in resetting. The first elastic element is set as a spring. A ring is provided on the first elastic element. The ring is used to hook the hook of the movable tool holder.

2. The needle separation device according to claim 1, characterized in that, The needle separation device also includes a slide assembly; The slide rail assembly is disposed at the bottom of the housing, and a slide rail groove is provided inside the slide rail assembly, which communicates with the cutting channel.

3. The needle separation device according to claim 2, characterized in that, The needle separation device also includes a fixing component; The fixing component is disposed on one side of the slide assembly, and the fixing component is connected to the slide assembly via a slide connecting rod. The fixing component is used for embedding the treatment cart.

4. The needle separation device according to claim 3, characterized in that, The inner wall of the first cavity is provided with a blade groove and a blade rail. The blade rail is located on the side of the blade groove facing the cutting channel and extends to the cutting channel. The blade rail is connected to the blade groove. The blade groove is used to place the first cutting piece, and the first cutting piece slides in the blade rail.

5. The needle separation device according to claim 3, characterized in that, The second cutting component includes a stationary blade holder and a second cutting blade; The stationary blade holder is located at the bottom of the second cavity, the second cutting blade has a second through hole, and the stationary blade holder has a second pin, which is inserted into the second through hole.

6. The needle separation device according to claim 3, characterized in that, The fixing components include a fixing frame, a slide rail bracket, a mounting arm, and a clamp; The slide rail bracket is located on one side of the fixed frame, the slide rail connecting rod is connected to the slide rail groove, the mounting arm is located at both ends of the fixed frame, and the clamp is located on the mounting arm. The clamp is used to secure the treatment cart.

7. The needle separation device according to any one of claims 1-6, characterized in that, The needle separation device further includes a handle assembly disposed at the end of the push rod assembly, the handle assembly being used to manually push the push rod assembly.

8. The needle separation device according to claim 5, characterized in that, The push rod assembly also includes a limiting seat, which is fixedly mounted on the bottom plate of the housing; The limiting seat is provided with a limiting seat opening, the moving tool seat is provided with a moving tool seat opening, and the stationary tool seat is provided with a stationary tool seat through hole. The push rod is sequentially inserted into the moving tool seat opening, the limiting seat opening, and the stationary tool seat through hole.

9. The needle separation device according to claim 1, characterized in that, The drive assembly includes a drive housing, a first motor, and a control rail; The drive housing forms an accommodating space, and the first motor and the control rail are both disposed within the accommodating space. The output end of the first motor is provided with a gear, and the control rail is disposed at the bottom of the accommodating space. A rack is provided on the control rail, and the rack meshes with the gear. The first motor is used to control the rack to slide on the control rail.

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