Separating and recycling device for infusion apparatus
By designing an infusion set separation and recovery device, and utilizing the automatic clamping and cutting functions of the needle holder and limiter, the problems of cumbersome operation and easy needle prick injury in the existing technology are solved, and the safe and efficient separation and recovery of infusion sets is achieved.
Patent Information
- Application Number
- CN202510017107.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-16
AI Technical Summary
In the existing technology, the recycling and disposal of used disposable infusion sets is cumbersome and can easily cause needlestick injuries, and there is a lack of efficient separation devices.
Design an infusion set separation and recovery device, including a support part, a drive part, a working part and a cutting part. Through the coordinated movement of the needle holder and the limiter, the device automatically clamps, stretches and cuts the puncture needle and tubing of the infusion set to achieve safe and efficient separation and recovery.
It enables the safe and efficient separation and recycling of infusion sets, avoids the risk of needlestick injuries, simplifies the operation process, and improves the efficiency and safety of recycling.
Smart Images

Figure CN121338162A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of medical devices, and particularly relates to a separation and recovery device for an infusion device. BACKGROUND
[0002] The use of disposable medical supplies is of great significance in preventing and controlling the occurrence of hospital infections and improving the quality of medical care. If the used disposable medical supplies are not properly disposed of, it will harm the hospital environment or cause social pollution. Therefore, it is particularly important to recycle, deform and harmlessly dispose of disposable medical supplies.
[0003] In clinical nursing work, infusion is the most common nursing operation. According to the requirements of hospital infection management, in order to avoid causing environmental pollution and spreading diseases again, the disposable infusion device should be recycled and destroyed after use.
[0004] At present, for the recycling and destruction of the used disposable infusion device, nursing staff usually adopts the manual separation method, uses scissors to manually cut off the puncture needle of the infusion device, and then puts the cut part into a sharp instrument box to complete the recycling and destruction of the disposable infusion device. However, in this process, the operation of the operator to cut off the puncture needle of the infusion device with scissors is tedious, and needle stick injury is easy to occur during operation.
[0005] The present application provides a separation and recovery device for an infusion device to solve the above problems. SUMMARY
[0006] In order to overcome the problems in the background art, the present application provides a separation and recovery device for an infusion device.
[0007] A separation and recovery device for an infusion device comprises: a support part having a working port and a throwing port at one end; a driving part located inside the support part; a working part comprising a needle holder, a first sliding rail, a limiting part, a second sliding rail and a traction device; the needle holder moves along the first sliding rail under the driving of the driving part; the needle holder and the limiting part are slidingly connected; the end of the limiting part away from the needle holder is fixedly connected with the traction device; the traction device moves along the second sliding rail; the first sliding rail comprises a first track and a second track; the ends of the first track and the second track towards the working port gradually open; the end of the second track away from the working port gradually moves away from the limiting part; a cutting part rotationally connected to the inside of the support part and located in the direction away from the working port of the needle holder.
[0008] Further, the needle holder comprises a first needle holder support and a second needle holder support; one end of the second needle holder support is inserted into the first needle holder support; the first needle holder support is provided with a first driving arm on the side away from the second needle holder support; the second needle holder support is provided with a second driving arm on the side away from the first needle holder support; the first driving arm and the second driving arm are connected with the driving part; Preferably, the first driving arm is provided with a first sliding block; the first sliding block is in sliding connection with a first track; Preferably, the second driving arm is provided with a second sliding block; the second sliding block is in sliding connection with a second track; Preferably, the first needle holder support is provided with a third sliding support on the end away from the working port; the second needle holder support is provided with a third sliding block; the third sliding block moves along the third sliding support.
[0009] Further, the first needle holder support is provided with a first limiting support on the side away from the second needle holder support; the second needle holder support is provided with a second limiting support on the side away from the first needle holder support; the limiting device is provided with a first guide sliding block and a second guide sliding block at two ends respectively; the first guide sliding block moves along the first limiting support; the second guide sliding block moves along the second limiting support.
[0010] Further, the limiting device comprises a first clamping support and a second clamping support; one end of the second clamping support is inserted into the first clamping support; Preferably, the first guide sliding block is located on the side of the first clamping support away from the second clamping support; the second guide sliding block is located on the side of the second clamping support away from the first clamping support; Preferably, the first clamping support is connected with the traction device.
[0011] Further, the traction device comprises a first traction arm, a second traction arm and a movable arm; one end of the second traction arm is inserted into the first traction arm, and the other end is fixedly connected with the movable arm; the first traction arm and the second traction arm are provided with a buffer structure on the outside; the movable arm is provided with a traction sliding block; the traction sliding block moves along the second sliding rail; Preferably, the buffer structure is a linear compression spring.
[0012] Further, the support part is slidingly connected with a utility box and a storage box; Preferably, the inside of the support part is provided with a baffle; the baffle is provided with an avoiding groove; Preferably, the storage box corresponds to the throwing port.
[0013] Further, the cutting part comprises a driving arm, a rotating support and a driven arm; one end of the rotating support is fixedly connected with the driving arm, and the other end is fixedly connected with the driven arm; the rotating support is in rotational connection with the support part; Preferably, the driven arm is provided with a cutter; Preferably, the cutting part further comprises a reset structure; one end of the reset structure is in abutment with the driving arm, and the other end is in abutment with the inner wall of the supporting part; Preferably, the reset structure is a torsional spring; Preferably, the included angle between the driving arm and the driven arm is greater than 30°.
[0014] Further, the first track is a vertical track; and the second track is a curved track; Preferably, one end of the second track close to the working port is curved away from the first track.
[0015] Further, the driving part comprises a driver, a driving bin, a sliding rod and a storage bin; one end of the driver is in communication with the driving bin through a guide rod, and the other end is in communication with the storage bin through a hose; one end of the sliding rod is inserted into the inside of the driving bin, and the other end is connected with the working part; Preferably, one end of the sliding rod away from the driving bin is fixedly connected with a sliding groove; and the sliding groove is in sliding connection with the working part; Preferably, one end of the sliding rod inserted into the driving bin is provided with a piston.
[0016] Further, the outside of the supporting part is provided with a control part; the control part is connected with the driver through a wire; Preferably, the control part comprises a display and a button.
[0017] The beneficial effects of the present application are as follows: when in use, the driving part is first used to drive the needle holder and the position limiter to extend out of the working port; then the puncture needle of the infusion device is placed into the inside of the needle holder, the infusion hose is placed into the position limiter, and other parts of the infusion device are placed into the inside of the throwing port; then the driving part is used to drive the needle holder and the position limiter to retract into the inside of the supporting part. Under the action of the first sliding rail, the needle holder and the position limiter are closed to firmly clamp the puncture needle and the hose; then under the action of the second sliding rail, the distance between the needle holder and the position limiter gradually increases to stretch the hose, so that the hose is straightened to facilitate cutting; the driving part drives the needle holder and the position limiter to move along the first sliding rail until the cutting part enters between the needle holder and the position limiter and cuts the hose; finally, the driving part drives the needle holder and the position limiter to move towards the working port, and in this process, the needle holder and the position limiter are gradually opened, the puncture needle in the inside of the needle holder falls into the inside of the sharpener box, and the infusion device also separates from the position limiter and completely enters the storage box through the throwing port under the dragging of other parts of the infusion device. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a perspective view of an infusion device separation and recycling device according to the present application; Figure 2A front view of a transfusion device separation and recovery device according to the present application; Figure 3 A front view of a transfusion device separation and recovery device according to the present application; Figure 2 A sectional view along A-A of the transfusion device separation and recovery device according to the present application; Figure 4 A front view of a transfusion device separation and recovery device according to the present application; Figure 5 A front view of a needle holder according to the present application; Figure 6 A side view of a needle holder according to the present application; Figure 7 A bottom view of a needle holder according to the present application; Figure 8 A perspective view of a needle holder according to the present application; Figure 9 A perspective view of a needle holder according to the present application in an open state; Figure 10 A side view of a stopper according to the present application; Figure 11 A perspective view of a stopper according to the present application; Figure 12 A bottom view of a stopper according to the present application; Figure 13 A perspective view of a stopper according to the present application in an open state; Figure 14 A perspective view of a needle holder and a stopper according to the present application in an open state; Figure 15 A front view of a cutter according to the present application; Figure 16 A perspective view of a cutter according to the present application; In the diagram, 1. Support unit; 2. Control unit; 3. Working unit; 4. Drive unit; 5. Cutting unit; 11. Feed port; 12. Working port; 13. Sharps box; 14. Storage box; 31. Needle holder; 32. First slide rail; 33. Limiter; 34. Second slide rail; 35. Traction device; 41. Driver; 42. Drive chamber; 43. Slide rod; 44. Slide groove; 45. Storage chamber; 51. Drive arm; 52. Rotating bracket; 53. Driven arm; 54. Cutter; 311. First needle holder bracket; 312. Second needle holder bracket; 313. First limiter bracket; 314. 315. Second limiting bracket; 316. First driving arm; 317. Second driving arm; 318. First slider; 319. Second slider; 301. Third slider; 331. First clamping bracket; 332. Second clamping bracket; 333. First guide slider; 334. Second guide slider; 335. First expansion structure; 336. Second expansion structure; 337. Fourth slide rail; 338. Fourth slider; 351. First traction arm; 352. Second traction arm; 353. Movable arm; 354. Traction slider; 355. Buffer structure. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] like Figures 1-16The utility model provides an infusion apparatus separating and recycling device which comprises: A support part 1 is provided with a working port 12 and a throwing port 11 at one end; A driving part 4 is located inside the support part 1; The working part 3 comprises a needle holder 31, a first sliding rail 32, a position limiter 33, a second sliding rail 34 and a traction device 35; the needle holder 31 moves along the first sliding rail 32 under the drive of the driving part 4; the needle holder 31 is in sliding connection with the position limiter 33; the position limiter 33 is fixedly connected with the traction device 35 at an end away from the needle holder 31; the traction device 35 moves along the second sliding rail 34; the first sliding rail 32 comprises a first track and a second track; the first track and the second track gradually widen at an end facing the working port 12; an end of the second track away from the working port 12 gradually moves away from the position limiter 33; The cutting part 5 is rotationally connected to the inside of the support part 1 and is located in the direction away from the working port 12 of the needle holder 31.
[0023] Specifically, the support part 1 is slidably connected with a sharp tool box 13 and a storage box 14; the inside of the support part 1 is provided with a baffle; the baffle is provided with an avoiding groove. The two sides of the baffle are a sharp tool bin and a working bin, the sharp tool box 13 is located in the inside of the sharp tool bin, and the driving part 4 and the working part 3 are located in the inside of the working bin. When the driving part 4 drives the working part 3 to move along the first sliding rail 32, the puncture needle clamped on the needle holder 31 moves in the avoiding groove. After cutting, the needle holder 31 opens, the puncture needle is separated from the needle holder 31 and completely enters the sharp tool bin, and finally falls into the inside of the sharp tool box 13 under the influence of gravity.
[0024] Specifically, the top of the sharp tool box 13 and the storage box 14 is provided with an opening.
[0025] Preferably, the storage box 14 corresponds to the throwing port 11. After the infusion apparatus is placed in the throwing port 11, the infusion apparatus enters the inside of the storage box 14 under the action of gravity.
[0026] Further, the side of the sharp tool box 13 away from the support part 1 is provided with a first handle, so as to take out the sharp tool box 13 from the support part 1. The side of the storage box 14 away from the support part 1 is provided with a second handle, so as to take out the storage box 14 from the support part 1.
[0027] When in use, the needle holder 31 and the position limiter 33 are first extended out of the working port 12 by the driving part 4; then the puncture needle of the infusion device is put into the needle holder 31, the infusion hose is put into the position limiter 33, and the other parts of the infusion device are put into the throwing port 11; then the needle holder 31 and the position limiter 33 are retracted into the supporting part 1 by the driving part 4. Under the action of the first sliding rail 32, the needle holder 31 and the position limiter 33 are closed to firmly hold the puncture needle and the hose; then under the action of the second sliding rail 34, the distance between the needle holder 31 and the position limiter 33 gradually increases to stretch the hose, so that the hose is straightened to facilitate cutting; the needle holder 31 and the position limiter 33 are moved along the first sliding rail 32 by the driving part 4, until the cutting part 5 enters between the needle holder 31 and the position limiter 33 and cuts the hose; finally, the needle holder 31 and the position limiter 33 are moved towards the working port 12 by the driving part 4, in the process, the needle holder 31 and the position limiter 33 are gradually opened, the puncture needle in the needle holder 31 falls into the inside of the sharp tool box 13, and the infusion device is separated from the position limiter 33 and completely enters the storage box 14 through the throwing port 11 under the dragging of other parts of the infusion device.
[0028] In some embodiments of the present application, as shown in Figures 4-14 the needle holder 31 comprises a first needle holding bracket 311 and a second needle holding bracket 312; one end of the second needle holding bracket 312 is inserted into the inside of the first needle holding bracket 311. The purpose of this design is: 1. When the first needle holding bracket 311 and the second needle holding bracket 312 are closed, the puncture needle can be tightly held.
[0029] 2. When the first needle holding bracket 311 and the second needle holding bracket 312 are opened, the first needle holding bracket 311 and the second needle holding bracket 312 can be prevented from being deviated, and the stability of the needle holder 31 is increased.
[0030] Preferably, one end of the first needle holding bracket 311 away from the working port 12 is provided with a third sliding bracket; the second needle holding bracket 312 is provided with a third sliding block 301; the third sliding block 301 moves along the third sliding bracket. Further avoiding the first needle holding bracket 311 and the second needle holding bracket 312 from being deviated, and increasing the stability of the needle holder 31.
[0031] The side of the first needle holding bracket 311 away from the second needle holding bracket 312 is provided with a first driving arm 31551; the side of the second needle holding bracket 312 away from the first needle holding bracket 311 is provided with a second driving arm 31651; the first driving arm 31551 and the second driving arm 31651 are connected with the driving part 4. The driving part 4 drives the needle holder 31 and the position limiter 33 to move through the first driving arm 31551 and the second driving arm 31651.
[0032] Specifically, the first driving arm 31551 is provided with a first sliding block 317; the first sliding block 317 is in sliding connection with the first rail; the second driving arm 31651 is provided with a second sliding block 318; the second sliding block 318 is in sliding connection with the second rail. The purpose of this design is to enable the first sliding rail 32 to drive the needle holder 31 and the position limiter 33 to open and close.
[0033] As shown in Figures 4-14 , the first needle holder support 311 is provided with a first limiting support 313 away from the second needle holder support 312; the second needle holder support 312 is provided with a second limiting support 314 away from the first needle holder support 311; the position limiter 33 is provided with a first guide sliding block 333 and a second guide sliding block 334 at both ends; the first guide sliding block 333 moves along the first limiting support 313; the second guide sliding block 334 moves along the second limiting support 314.
[0034] The purpose of this design is to ensure that the needle holder 31 and the position limiter 33 move synchronously in the vertical direction.
[0035] Further, the first guide sliding block 333 is provided with a first bulging structure 335 away from one end of the limiting support; the second guide sliding block 334 is provided with a second bulging structure 336 away from one end of the limiting support. The purpose of this design is to ensure that the needle holder 31 and the position limiter 33 can be opened or closed at the same time.
[0036] In the illustrative embodiment of the present application, as shown in Figures 4-14 , the position limiter 33 includes a first clamping support 331 and a second clamping support 332; one end of the second clamping support 332 is inserted into the inside of the first clamping support 331. The purpose of this design is: 1. When the first clamping support 331 and the second clamping support 332 are closed, the puncture needle can be tightly clamped.
[0037] 2. When the first clamping support 331 and the second clamping support 332 are opened, the first clamping support 331 and the second clamping support 332 can be prevented from being deviated, and the stability of the position limiter 33 is increased.
[0038] Preferably, one end of the first clamping support 331 away from the working port 12 is provided with a fourth sliding support; the second clamping support 332 is provided with a fourth sliding block 338; the fourth sliding block 338 moves along the fourth sliding support. Further avoiding the first clamping support 331 and the second clamping support 332 from being deviated, and increasing the stability of the position limiter 33.
[0039] Specifically, the first guide sliding block 333 is located on one side of the first clamping support 331 away from the second clamping support 332; the second guide sliding block 334 is located on one side of the second clamping support 332 away from the first clamping support 331.
[0040] As shown in Figures 1-14 The first clamping bracket 331 is connected with the traction device 35. In the process that the driving part 4 drives the needle holder 31 and the stopper 33 to ascend and descend, the traction device 35 moves along the second sliding rail 34, thereby driving the first clamping bracket 331 and the second clamping bracket 332 to gradually move away from or close to the needle holder 31.
[0041] In some examples of the present application, the traction device 35 comprises a first traction arm 351, a second traction arm 352 and a movable arm 353; one end of the second traction arm 352 is inserted with the first traction arm 351, and the other end is fixedly connected with the movable arm 353; the first traction arm 351 and the second traction arm 352 are externally provided with a buffer structure 355; the movable arm 353 is provided with a traction sliding block 354; the traction sliding block 354 moves along the second sliding rail 34. The purpose of this design is that in the process of tensioning the infusion set hose, the infusion set hose can be straightened to facilitate cutting; if the hose between the needle holder 31 and the stopper 33 is short, the buffer structure 355 will be squeezed in the process of pulling the infusion set hose, so that the total length of the first traction arm 351 and the second traction arm 352 is extended. In order to prevent excessive pulling of the infusion set hose, causing the second sliding rail 34 or the traction sliding block 354 to deform.
[0042] Preferably, the buffer structure 355 is a straight compression spring.
[0043] In specific examples of the present application, as shown in Figures 1-16 The cutting part 5 comprises a driving arm 51, a rotating bracket 52 and a driven arm 53; one end of the rotating bracket 52 is fixedly connected with the driving arm 51, and the other end is fixedly connected with the driven arm 53; the rotating bracket 52 is rotatably connected with the support part 1. The driven arm 53 is provided with a cutter 54.
[0044] The driving part 4 drives the needle holder 31 and the stopper 33 to gradually move away from the working port 12, in this process, the needle holder 31 and the stopper 33 gradually close, and the stopper 33 gradually moves away from the needle holder 31 to tension the infusion set hose. Then the bottom of the needle holder 31 contacts the driving arm 51, and drives the driving arm 51 to rotate, drives the driven arm 53 to rise, so that the cutter 54 on the driven arm 53 contacts and cuts the infusion set hose.
[0045] Preferably, the cutting part 5 further comprises a reset structure; one end of the reset structure is in abutment with the driving arm 51, and the other end is in abutment with the inner wall of the support part 1. When the driving part 4 drives the needle holder 31 to move towards the working port 12, the reset structure drives the driving arm 51 to reverse and reset, thereby driving the driven arm 53 and the cutter 54 to reset, so as to facilitate the next cutting.
[0046] Preferably, the reset structure is a torsional spring.
[0047] Specifically, the included angle between the driving arm 51 and the driven arm 53 is greater than 30 degrees.
[0048] As shown in Figures 3-4 the first track is a vertical track; and the second track is a curved track. The first needle holder 311 moves along the first track under the drive of the driving part 4, and the first needle holder 311 drives the first clamping bracket 331 to do linear reciprocating motion through the first limiting bracket 313. The second needle holder 312 moves along the second track under the drive of the driving part 4, and the second needle holder 312 drives the second clamping bracket 332 to move along the second track through the second limiting bracket 314.
[0049] The second track is curved away from the first track at one end close to the working port 12. In the process that the needle holder 31 and the limiter 33 are driven by the driving part 4 to move away from the working port 12, when the needle holder 31 and the limiter 33 gradually close, the traction device 35 enters the curved section of the second track, and at this time the traction device 35 drives the limiter 33 to move away from the needle holder 31 to tighten the infusion device hose.
[0050] As shown in Figures 1-4 the driving part 4 includes a driver 41, a driving chamber 42, a sliding rod 43 and a storage chamber 45. One end of the driver 41 is communicated with the driving chamber 42 through a guide rod, and the other end is communicated with the storage chamber 45 through a hose. One end of the sliding rod 43 is inserted into the inside of the driving chamber 42, and the other end is connected with the working part 3.
[0051] Specifically, the end of the sliding rod 43 inserted into the driving chamber 42 is provided with a piston.
[0052] The inside of the driving chamber 42 and the storage chamber 45 is full of liquid. When the driver 41 transports the liquid in the storage chamber 45 to the inside of the driving chamber 42, the sliding rod 43 gradually rises to drive the needle holder 31 and the limiter 33 to move towards the working port 12. When the driver 41 transports the liquid in the driving chamber 42 to the inside of the storage chamber 45, the sliding rod 43 gradually retracts into the driving chamber 42 to drive the needle holder 31 and the limiter 33 to move away from the working port 12.
[0053] In some other embodiments of the present application, the driving part 4 includes a linear extension motor, and the linear extension motor is arranged on both sides of the working part 3, and the output shaft of the linear extension motor is connected with the first driving arm 31551 and the second driving arm 31651.
[0054] Preferably, the end of the sliding rod 43 away from the driving chamber 42 is fixedly connected with a sliding groove 44, and the sliding groove 44 is slidingly connected with the working part 3.
[0055] Further, the support part 1 is externally provided with a control part 2; the control part 2 is connected with the driver 41 through a wire; the control part 2 controls the opening and closing of the driver 41.
[0056] Specifically, the control part 2 comprises a display and a button.
[0057] The use method of the embodiment is as follows: 1. The driver 4 is used to drive the needle holder 31 and the position limiter 33 to extend out of the working port 12; 2. The puncture needle of the infusion device is placed inside the needle holder 31, the infusion device hose is placed inside the position limiter 33, and the other parts of the infusion device are placed inside the object throwing port 11; 3. The driver 4 is used to drive the needle holder 31 and the position limiter 33 to retract into the support part 1; 4. After the cutting is completed, the driver 4 drives the needle holder 31 and the position limiter 33 to move towards the working port 12; in this process, the needle holder 31 and the position limiter 33 gradually open, the puncture needle inside the needle holder 31 falls into the utility knife box 13, and the infusion device is separated from the position limiter 33 and completely enters the storage box 14 through the object throwing port 11 under the dragging of the other parts of the infusion device.
[0058] In the description of the present specification, the description of the terms "embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0059] The embodiments described in the present application are only part of the embodiments of the present application, not all the embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present specification. The present application can also be implemented or applied by other different specific embodiments, and the following embodiments and features in the embodiments can be combined with each other without conflict, based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.
Claims
1. An apparatus for separating and recovering an infusion device, characterized by, It includes: Supporting part, one end is provided with a working port and a throwing port; Driving part, located inside the supporting part; Working part, including needle holder, first sliding rail, stopper, second sliding rail and tractor; the needle holder moves along the first sliding rail under the driving of the driving part; the needle holder and the stopper are slidingly connected; the end of the stopper away from the needle holder is fixedly connected with the tractor; the tractor moves along the second sliding rail; the first sliding rail includes first track and second track; the first track and the second track gradually open towards the end of the working port; the end of the second track away from the working port gradually moves away from the stopper; Cutting part, rotationally connected to the inside of the supporting part, located in the direction away from the working port of the needle holder.
2. The apparatus according to claim 1, wherein The needle holder includes first needle holder bracket and second needle holder bracket; one end of the second needle holder bracket is inserted into the inside of the first needle holder bracket; the side of the first needle holder bracket away from the second needle holder bracket is provided with first driving arm; the side of the second needle holder bracket away from the first needle holder bracket is provided with second driving arm; the first driving arm and the second driving arm are connected with the driving part; Preferably, the first driving arm is provided with first sliding block; the first sliding block is slidingly connected with the first track; Preferably, the second driving arm is provided with second sliding block; the second sliding block is slidingly connected with the second track; Preferably, the end of the first needle holder bracket away from the working port is provided with third sliding bracket; the second needle holder bracket is provided with third sliding block; the third sliding block moves along the third sliding bracket.
3. The apparatus according to claim 2, wherein The side of the first needle holder bracket away from the second needle holder bracket is provided with first limiting bracket; the side of the second needle holder bracket away from the first needle holder bracket is provided with second limiting bracket; the two ends of the stopper are respectively provided with first guide sliding block and second guide sliding block; the first guide sliding block moves along the first limiting bracket; the second guide sliding block moves along the second limiting bracket.
4. The apparatus according to claim 3, wherein The stopper includes first clamping bracket and second clamping bracket; one end of the second clamping bracket is inserted into the inside of the first clamping bracket; Preferably, the first guide sliding block is located on the side of the first clamping bracket away from the second clamping bracket; the second guide sliding block is located on the side of the second clamping bracket away from the first clamping bracket; Preferably, the first clamping bracket is connected with the tractor.
5. The apparatus of claim 1, wherein The tractor includes first traction arm, second traction arm and movable arm; one end of the second traction arm is inserted into the first traction arm, and the other end is fixedly connected with the movable arm; the outside of the first traction arm and the second traction arm is provided with buffer structure; the movable arm is provided with traction sliding block; the traction sliding block moves along the second sliding rail; Preferably, the buffer structure is a straight compression spring.
6. The apparatus of claim 1, wherein The supporting part is slidingly connected with the sharp box and the storage box; Preferably, the inside of the supporting part is provided with baffle; the baffle is provided with avoiding groove; Preferably, the storage box corresponds to the throwing port.
7. The apparatus of claim 1, wherein, The cutting part includes driving arm, rotating bracket and driven arm; one end of the rotating bracket is fixedly connected with the driving arm, and the other end is fixedly connected with the driven arm; the rotating bracket is rotationally connected with the supporting part; Preferably, the driven arm is provided with cutter; Preferably, the cutting part further comprises a reset structure; one end of the reset structure is in abutment with the driving arm, and the other end is in abutment with the inner wall of the supporting part; Preferably, the reset structure is a torsion spring. Preferably, the included angle between the driving arm and the driven arm is greater than 30°.
8. The apparatus of claim 1, wherein, The first track is a vertical track; and the second track is a curved track. Preferably, one end of the second track close to the working port is curved away from the first track.
9. The apparatus according to any one of claims 1 to 8, wherein The driving part comprises a driver, a driving bin, a sliding rod and a storage bin; one end of the driver is in communication with the driving bin through a guide rod, and the other end is in communication with the storage bin through a hose; one end of the sliding rod is inserted into the inside of the driving bin, and the other end is connected with the working part; Preferably, one end of the sliding rod away from the driving bin is fixedly connected with a sliding groove; and the sliding groove is in sliding connection with the working part. Preferably, one end of the sliding rod inserted into the driving bin is provided with a piston.
10. The apparatus of claim 9, wherein, The outside of the supporting part is provided with a control part; and the control part is connected with the driver through a wire; Preferably, the control part comprises a display and a key.