Cutting mechanism of a medical suture cutting machine

Abstract

The present application relates to the field of medical suture cutting machine, disclose a kind of cutting mechanism of medical suture cutting machine, comprising: the cutter is equipped with tool holder;First drive assembly is connected with rotating member and can drive its rotation, the tool holder is movably connected to the rotating member;Second drive assembly is installed on the rotating member and is connected with the tool holder;Third drive assembly is installed on the tool holder and is used to drive the cutter relative to the tool holder rotation;Thread holder, the medical suture is arranged in the thread holder;The cutting mechanism of the present application has multiple drive assemblies or translation modules that can drive the tool holder and the cutter to move from different directions, the position and angle of the cutter can be adjusted flexibly according to the needs of use, and the tool holder can efficiently and accurately cut barbs on the medical suture with the line pressing part.

Description

Technical Field

[0001] This invention relates to the field of medical suture cutting machines, and more particularly to a cutting mechanism for a medical suture cutting machine. Background Technology

[0002] Medical sutures are widely used for suturing surgical and traumatic wounds. One end of the suture is tied to a surgical needle, which pulls the suture through the tissue to close the wound and fix the tissue together for healing and regrowth. Currently, most medical sutures require one or more knots to secure them, which increases surgical time and can seriously affect certain procedures. Compared to traditional sutures that require knots to secure tissue, using barbed medical sutures can apply tension within the tissue, reducing suture slippage at the wound site, shortening surgical time, and reducing complications such as infection caused by knot detachment or breakage. However, the efficiency and cutting precision of existing barbed suture cutting devices still need improvement, and the blades are not flexible enough, resulting in low production efficiency. Summary of the Invention

[0003] This invention aims to overcome the shortcomings of traditional medical suture cutting machines, such as low working efficiency, insufficient cutting precision, and lack of blade flexibility. Specifically, it provides a technical solution that addresses these problems.

[0004] A cutting mechanism for a medical suture cutting machine, used for cutting medical sutures, includes: a cutting mechanism comprising: a cutter holder equipped with a cutting tool; a first driving assembly connected to and capable of driving a rotating component to rotate, the cutter holder being movably connected to the rotating component; a second driving assembly mounted on the rotating component and connected to the cutter holder, the second driving assembly driving the cutter holder to move forward or backward; and a third driving assembly mounted on the cutter holder and used to drive the cutting tool to rotate relative to the cutter holder.

[0005] Preferably, the cutting mechanism further includes a translation module, which comprises: a first translation module, wherein the first drive component is mounted on the first translation module and the height of the first drive component is controlled by the first translation module; a second translation module, wherein the first translation module is mounted on the second translation module and the second translation module drives the first translation module to move along the X-axis; and a third translation module, wherein the second translation module is mounted on the third translation module and the third translation module drives the second translation module to move along the Y-axis.

[0006] Preferably, the cutting mechanism further includes a suture pressing part located below the blade holder. The suture pressing part includes: an extension plate connected to the second translation module; a pressure plate mounted on the extension plate, the bottom of which has a triangular protrusion; and a lifting seat mounted on the extension plate, on which a correction block is mounted. The lifting seat drives the correction block to move up and down. One side of the top surface of the correction block protrudes to form an inclined surface, while the other side of the top surface is flat. A triangular groove is provided on the inclined surface. The triangular protrusion of the pressure plate is positioned above the triangular groove. The medical suture passes through the triangular groove and is pressed by the triangular protrusion of the pressure plate. The blade is positioned above the flat surface of the correction block.

[0007] Compared with the prior art, the beneficial effects of the present invention are: the cutting mechanism of the present invention has multiple driving components or translation modules that can drive the blade holder and the blade to move from different directions, and the position and angle of the blade can be flexibly adjusted according to the needs of use. The blade holder, together with the suture pressing part, can efficiently and accurately cut barbs on medical sutures.

[0008] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of the present invention.

[0011] Figure 2 This is another structural schematic diagram of the present invention.

[0012] Figure 3 This is a schematic diagram of the cutting mechanism of the present invention.

[0013] Figure 4 This is a schematic diagram of the tool holder of the present invention.

[0014] Figure 5 This is a schematic diagram of the structure of the cutting tool of the present invention.

[0015] Figure 6 This is a schematic diagram of the structure of the first driving component of the present invention.

[0016] Figure 7This is a schematic diagram of the structure of the first translation module of the present invention.

[0017] Figure 8 This is a schematic diagram of the pressure line portion of the present invention.

[0018] Figure 9 This is a schematic diagram of the structure of the pressure plate of the present invention.

[0019] Figure 10 This is a schematic diagram of the wire frame structure of the present invention.

[0020] Figure 11 This is a schematic diagram of another structure of the wire frame of the present invention.

[0021] Figure 12 This is a schematic diagram of the wire feeding section of the present invention.

[0022] Figure 13 This is a schematic diagram of the structure of the fourth translation module of the present invention.

[0023] Figure 14 This is a schematic diagram of the camera structure of the present invention.

[0024] Figure 15 This is a schematic diagram of the structure of the tenth translation module of the present invention. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-15In this embodiment of the invention, a medical suture cutting machine is used to cut medical sutures, comprising: a cutting mechanism 1, the cutting mechanism 1 including: a blade holder 11 equipped with a blade 111, the blade 111 being rotatably mounted on the blade holder 11; a first driving assembly 12, connected to and capable of driving a rotating component 100 to rotate, the blade holder 11 being movably connected to the rotating component 100; specifically, the first driving assembly 12 includes: a first motor 121, a worm gear 122 mechanism and a turntable 123, wherein the rotating shaft of the first motor 121 is coaxially connected to the worm, and the worm gear, turntable 123 and rotating component 100 are fixed together by bolts, and the rotating component 100 can be driven to rotate by the first motor 121; the top end face of the rotating component 100 is provided with an extension portion for mounting the blade holder 11, generally, the extension portion is usually inclined, and the bottom of the extension portion is provided with a slide rail for the blade holder 11. 1. The tool holder 11 is mounted on the slide rail and slides with it. The second drive assembly 13 includes a first cylinder. The cylinder body of the first cylinder is mounted on the extension of the rotating member 100. The telescopic rod of the first cylinder is connected to the tool holder 11. Thus, the tool holder 11 can be driven forward or backward by the second drive assembly 13. Preferably, a baffle is provided at the bottom of the extension. The baffle is located in front of the end of the slide rail of the tool holder 11. A buffer spring 131 is installed between the baffle and the tool holder 11. The third drive assembly 14 is mounted on the tool holder 11 and is used to drive the tool 111 to rotate relative to the tool holder 11. Specifically, the two ends of the tool 111 are connected to the rotating shaft. The tool holder 11 has holes formed to install the rotating shaft. The end of the rotating shaft passes through the hole of the tool holder 11 and is equipped with a first gear. The third drive assembly 14 includes a second motor. The rotating shaft of the second motor is equipped with a second gear and meshes with the first gear on the rotating shaft.

[0027] The cutting mechanism 1 also includes a translation module, which includes:

[0028] The first translation module 15 is equipped with a first drive assembly 12, which controls the height of the first drive assembly 12. Specifically, the first translation module 15 includes a first translation base 151, a first translation slide rail 152, a first lead screw 155, and a first drive motor 153. The first translation slide rail 152 and the first lead screw 155 are arranged on the first translation base 151 along the Z-axis. The first lead screw 155 and the first drive motor 153 are connected by belt drive. A first translation slider 154 is installed on the first translation slide rail 152 and slides with it. The housing of the worm gear 122 of the first drive assembly 12 is bolted to the first translation slider 154.

[0029] The second translation module 16 is mounted on the first translation module 15. The second translation module 16 drives the first translation module 15 to move along the X-axis. Specifically, the second translation module 16 includes: a second translation base 161, a second translation slide rail 162, a second lead screw 163, a second drive motor 164, and a moving plate 166. The second translation slide rail 162 and the second lead screw 163 are both arranged on the second translation base 161 along the X-axis. The second lead screw 163 is coaxially connected to the shaft of the second drive motor 164. A second translation slider 165 is mounted on the second translation slide rail 162 and slides with it. The moving plate 166 is mounted on the second translation slider 165 and is connected to the second lead screw 163.

[0030] The third translation module 17 is mounted on the second translation module 16, and the second translation module 16 is driven by the third translation module 17 to move along the Y-axis. Specifically, the third translation module 17 includes: a third translation base 171, a third translation slide rail 172, a third lead screw 173, and a third drive motor 174. The third translation slide rail 172 and the third lead screw 173 are both arranged on the third translation base 171 along the Y-axis. The third drive motor 174 is also mounted on the third translation base 171. The shafts of the third lead screw 173 and the third drive motor 174 are connected by belt drive. A third translation slider 175 is mounted on the third translation slide rail 172 and is slidably engaged with it. The second translation base 161 is mounted on the third translation slider 175 and is connected to the third lead screw 173. The second drive motor 164 is mounted on the third translation base 171.

[0031] It also includes a platform 2, on which a fourth translation module 18 is provided. A third translation module 17 is installed on the fourth translation module 18 and is driven by the fourth translation module 18 to move along the X-axis. Specifically, the fourth translation module 18 includes: a fourth translation slide rail 181, a fourth lead screw, and a fourth drive motor 183. The fourth translation slide rail 181 and the fourth lead screw are both arranged on the platform 2 along the X-axis. The fourth lead screw is coaxially connected to the shaft of the fourth drive motor 183. A fourth translation slider 182 is installed on the fourth translation slide rail 181 and slides with it. The third translation base 171 is installed on the fourth translation slider 182.

[0032] The cutting mechanism 1 also includes a suture pressing part 19, which is located below the blade holder 11. After the suture frame 3 pulls out the medical suture, the suture pressing part 19 positions and presses down the medical suture. The suture pressing part 19 includes:

[0033] The extension plate 191 is connected to the second translation module 16, specifically to the movable plate 166;

[0034] A pressure plate 192 is installed on an extension plate 191, and a triangular protrusion 1921 is provided at the bottom of the pressure plate 192;

[0035] The lifting seat 193 is installed on the extension plate 191. The lifting seat 193 is equipped with a correction block 194. The lifting seat 193 (which has a built-in lifting cylinder, and the extension rod of the lifting cylinder is connected to the correction block 194) drives the correction block 194 to move up and down. One side of the top surface of the correction block 194 is raised to form an inclined surface, while the other side of the top surface is flat. A triangular groove 1941 is provided on the inclined surface. The triangular protrusion 1921 of the pressure plate 192 is located above the triangular groove 1941. The medical suture passes through the triangular groove 1941 and is pressed by the triangular protrusion 1921 of the pressure plate 192. The blade 111 is located above the flat surface of the correction block 194.

[0036] The suture frame 3 contains the medical suture, which is pulled out by the suture frame 3 and rotated intermittently after the pulling action is completed. The cutting mechanism 1 cuts the medical suture when it stops to form barbs.

[0037] The wire frame 3 includes: a wire feeding section and a wire clamping section;

[0038] The wire feeding section includes:

[0039] The roller mounting base 311 is equipped with a first roller 312 and a second roller 313 that rotate with it. The first roller 312 and the second roller 313 clamp the medical suture, and the medical suture is delivered by rotating the first roller 312 and the second roller 313.

[0040] The clamping part includes:

[0041] The wire gripping rotary seat 321 has a first pneumatic gripper 322 that rotates and engages with it. Specifically, the wire gripping rotary seat 321 has a shaft that rotates and engages with it. One end of the shaft is connected to the first pneumatic gripper 322, and the other end is driven by the shaft of the rotary drive motor 324.

[0042] The fifth translation module 323 is installed on platform 2 and is set parallel to the fourth translation module 18. The wire gripping rotary seat 321 is installed on the fifth translation module 323. The fifth translation module 323 drives the wire gripping rotary seat 321 to move along the X-axis. It can be understood that in this technical solution, the driving method of all translation modules is based on the lead screw and motor well known to those in the art. The transmission between the lead screw and the motor can be selected according to the placement of the motor, either by directly connecting the motor shaft to the lead screw or by using belt drive. The parts that need to move are installed on the corresponding translation base or slider. Therefore, the structure of other translation modules in this technical solution can refer to the translation modules that have been described in detail above, and will not be elaborated further.

[0043] The suture feeding section also includes a first support plate 314 and a second support plate 315 spaced apart. The first support plate 314 and the second support plate 315 are mounted on the platform 2. A roller mounting seat 311 is mounted on the second support plate 315. A first rotating shaft 3141 that rotatably engages with the first support plate 314 is mounted on the first support plate 314, and a second rotating shaft 3151 that rotatably engages with the second support plate 315 is mounted on the second support plate 315. A fixing plate 316 connects the first rotating shaft 3141 and the second rotating shaft 3151. A roller is mounted on the fixing plate 316, and a suture roller 317 that rotatably engages with the roller is mounted on the roller. The suture roller 317 is used to wind the medical suture to be cut. A first suture hole and a second suture hole are respectively provided on a rotating shaft 3141 and a second rotating shaft 3151 for threading. The medical suture can be fed to the roller mounting base 311 through the second suture hole. A rotating shaft drive motor 319 for driving the first rotating shaft 3141 to rotate is installed on the first support plate 314. Specifically, a first transmission wheel is installed at the end of the first rotating shaft 3141, and a second transmission wheel is installed on the shaft of the rotating shaft drive motor 319. A transmission belt is assembled between the first transmission wheel and the second transmission wheel (this transmission structure is also applicable to other belt drive structures in this technical solution). That is, the first rotating shaft 3141 and the rotating shaft motor adopt belt drive.

[0044] The roller mounting base 311 is installed at the end of the second rotating shaft 3151. The roller mounting base 311 has a groove for mounting the first roller 312 and the second roller 313. The second suture hole of the second rotating shaft 3151 communicates with the groove. The roller mounting base 311 is connected to a guide tube 318, which communicates with the groove and is positioned relative to the second rotating shaft 3151. Understandably, the medical suture is led out from the suture roller 317, passes through the second suture hole, between the first roller 312 and the second roller 313, and finally exits from the guide tube. 318 leads out, and a roller drive motor 3111 for driving the first roller 312 and the second roller 313 to rotate is installed on the roller mounting base 311. Specifically, the groove of the roller mounting base 311 is provided with two roller shafts for mounting the first roller 312 and the second roller 313 respectively. The two roller shafts are connected to the same small gearbox. The roller drive motor 3111 is connected to the small gearbox and drives the two roller shafts to rotate through the small gearbox, thereby driving the first roller 312 and the second roller 313 to rotate.

[0045] This technical solution also includes a gantry mechanism, which includes: a first support 41 and a second support 42 spaced apart. The first support 41 and the second support 42 are mounted on the platform 2. The first support 41 and the second support 42 are higher than the cutting mechanism 1 and the wire frame 3. A sixth translation module 45 and a seventh translation module 46 are respectively mounted on the first support 41 and the second support 42. The gantry mechanism also includes a connecting plate 47. The two ends of the connecting plate 47 are respectively mounted on the sixth translation module 45 and the seventh translation module 46. The connecting plate 47 is located above the fourth translation module 18. The sixth translation module 45 and the seventh translation module 46 jointly drive the connecting plate 47 to move along the Y-axis.

[0046] The connecting plate 47 is equipped with a symmetrically arranged eighth translation module 48 and ninth translation module 49, which are arranged along the length of the connecting plate 47. The eighth translation module 48 and the ninth translation module 49 are installed on the eighth translation module 48. The tenth translation module 481 is driven by the eighth translation module 48 to move along the X-axis. The tenth translation module 481 is equipped with a first connecting seat 482, which is driven by the tenth translation module 481 to move along the Z-axis. A first cutter 484 is installed on the outer side of the lower end of the first connecting seat 482, and a second pneumatic gripper 483 is installed on the inner side of the lower end of the first connecting seat 482.

[0047] The eleventh translation module 491 is installed on the ninth translation module 49. The eleventh translation module 491 is driven by the ninth translation module 49 to move along the X-axis. The eleventh translation module 491 is equipped with a second connecting seat (same as the first connecting seat 482 mentioned above). The eleventh translation module 491 drives the second connecting seat to move along the Z-axis. A second cutter (same as the first cutter 484 mentioned above) is installed on the outer side of the lower end of the second connecting seat. A third pneumatic gripper (same as the second pneumatic gripper 483 mentioned above) is installed on the inner side of the lower end of the first connecting seat 482.

[0048] It also includes a monitoring mechanism, which includes: a microscope camera 52, installed on the first connecting seat 482, with the microscope camera 52 facing the knife holder 11 and the suture pressing part 19; a camera 51, installed on the second translation module 16, with an outwardly extending lens 511 mounted on the camera 51, the lens 511 being positioned close to the knife holder 11, and a ring light source 512 mounted on the front end face of the lens 511; and a display 5, with the microscope camera 52 and the camera 51 respectively connected to the display 5 for signal transmission. It is understood that because the medical suture is very thin and the barbs cut out are small, it is necessary for the camera 51 and the lens 511 to work together with the ring light source 512 to take pictures. The images captured by the microscope camera 52 and the camera 51 will be displayed on the display 5, and the operator can adjust the cutting mechanism 1 accordingly.

[0049] The platform 2 is equipped with a product storage box, and the second pneumatic gripper 483, in conjunction with the third pneumatic gripper, delivers the cut medical suture into the product storage box.

[0050] Upon startup, the fifth translation module 323 drives the suture-gripping rotating seat 321 to move along the X-axis to approach the roller mounting seat 311. The first pneumatic gripper 322 on the suture-gripping rotating seat 321 clamps the medical suture delivered from the roller mounting seat 311 (guide tube 318). Then, the fifth translation module 323 drives the suture-gripping rotating seat 321 to move backward to complete the traction of the medical suture. It should be noted that the traction action is completed by driving the first roller 312 and the second roller 313 on the roller mounting seat 311 in conjunction with the suture-gripping rotating seat 321. After being pulled to the appropriate length, the cutting mechanism 1 on one side, driven by the third translation module 17, guides the medical suture into the triangular groove 1941 of the correction block 194 and presses it down by the pressure plate 192. At this time, the condition of the blade 111 and the pressure part 19 can be observed through the microscope camera 52 to make preliminary adjustments to the cutting mechanism 1. That is, the first drive component 12 drives the blade holder 11 to rotate, tilting the blade 111 to a suitable angle. After the preliminary adjustment is completed, the cutting begins, and the second drive component 13 drives the blade holder 11 forward so that the blade 111 cuts into the medical suture. Using sutures, the third drive assembly 14 drives the cutter 111 to rotate, which lifts the cut portion of the suture upward to form barbs. The cutter retracts and resets, completing one round of cutting. Then, the suture gripping rotating seat 321 drives the first pneumatic gripper 322 to rotate the suture. The roller mounting seat 311 and the fixing plate 316 are simultaneously driven to rotate by a rotary shaft motor (to prevent suture breakage). The uncut side of the suture is rotated to below the cutter 111 for the next round of cutting. Once the side of a certain node of the suture is completely cut, the fourth translational mold... Group 18 transports the cutting mechanism 1 to the next node of the medical suture for cutting; after the medical suture is cut, the gantry mechanism moves the second pneumatic gripper 483 and the third pneumatic gripper to both ends of the medical suture and clamps them. The first cutter 484 and the second cutter on the gantry mechanism move downward to cut the medical suture. The cut medical suture is the finished product. Finally, the gantry mechanism moves the second pneumatic gripper 483 and the third pneumatic gripper holding the finished product to the top of the product storage box, releases the second pneumatic gripper 483 and the third pneumatic gripper, and the finished product falls into the product storage box.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A cutting mechanism for a medical suture cutting machine, used for cutting medical sutures, characterized in that, include: A tool holder equipped with cutting tools; The first drive assembly is connected to a rotating component and can drive it to rotate; the tool holder is movably connected to the rotating component. The second drive assembly is installed on the rotating member and connected to the tool holder, and the tool holder is driven to move forward or backward by the second drive assembly; A third drive assembly is mounted on the tool holder and is used to drive the tool to rotate relative to the tool holder; The cutting mechanism further includes a translation module, which comprises: A first translation module, wherein the first drive component is mounted on the first translation module and the height of the first drive component is controlled by the first translation module; The second translation module is mounted on the first translation module, and the second translation module drives the first translation module to move along the X-axis. A third translation module, wherein the second translation module is mounted on the third translation module, and the third translation module drives the second translation module to move along the Y-axis; The cutting mechanism further includes a wire pressing part, which is located below the blade holder. The wire pressing part includes: An extension plate is connected to the second translation module; A pressure plate is installed on the extension plate, and the bottom of the pressure plate is provided with a triangular protrusion; A lifting seat is installed on the extension plate. A correction block is installed on the lifting seat. The lifting seat drives the correction block to move up and down. One side of the top surface of the correction block is raised to form an inclined surface, while the other side of the top surface is flat. A triangular groove is provided on the inclined surface. The triangular protrusion of the pressure plate is located above the triangular groove. The medical suture passes through the triangular groove and is pressed by the triangular protrusion of the pressure plate. The cutting tool is located above the flat surface of the correction block.

2. The cutting mechanism of a medical suture cutting machine according to claim 1, characterized in that: It also includes a platform, on which a fourth translation module is provided, and a third translation module is installed on the fourth translation module, and the third translation module is driven by the fourth translation module to move along the X-axis.

3. The cutting mechanism of a medical suture cutting machine according to claim 1, characterized in that: It also includes a monitoring mechanism, which includes a camera mounted on the second translation module. The camera has an outwardly extending lens mounted on it, which is positioned close to the blade holder. A ring light source is mounted on the front end face of the lens. The camera is used to photograph the medical suture.

4. The cutting mechanism of a medical suture cutting machine according to claim 1, characterized in that: The first drive assembly includes a first motor, a worm gear, a worm, and a turntable, wherein the shaft of the first motor is coaxially connected to the worm, and the turntable, the rotating component, and the worm gear are fixed together by bolts.

5. The cutting mechanism of a medical suture cutting machine according to claim 1, characterized in that: The second drive assembly includes a first cylinder, the cylinder body of which is mounted on the rotating component, and the telescopic rod of the first cylinder is connected to the tool holder.

6. The cutting mechanism of a medical suture cutting machine according to claim 1, characterized in that: The cutting tool is connected to a rotating shaft at both ends. The tool holder has holes formed to install the rotating shaft. The end of the rotating shaft passes through the hole in the tool holder and is fitted with a first gear. The third drive assembly includes a second motor. The rotating shaft of the second motor is fitted with a second gear and meshes with the first gear for transmission.

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