Medical suture packaging tray

Abstract

The present application relates to the medical packaging technical field, particularly to a kind of medical suture packaging tray, it is integrated elastic structure, by injection molding integrated, including bottom plate, outer baffle and inner baffle, the surface of bottom plate is provided with outer baffle and inner baffle, bottom plate, outer baffle and inner baffle are enclosed and form the line groove of race track shape ring structure, the inner side surface of outer baffle is approximately equidistant with multiple lower line column, and the top surface of lower line column is flush with the top surface of outer baffle;The present application provides a kind of medical suture packaging tray, it is integrated elastic structure, by injection molding integrated, including bottom plate, outer baffle and inner baffle, three enclose and form race track shape ring line groove, by setting the cooperation structure of upper and lower line column, realize suture smooth extraction, prevent escape and knot, upper and lower line column cooperate and form continuous arc-shaped guide surface, reduce the friction surface contact area of suture and tray line groove, avoid suture jam, the damage or extraction of line body caused by pulling caused by suture jam.

Description

Technical Field

[0001] This invention relates to the field of medical packaging technology, and in particular to a medical suture packaging tray. Background Technology

[0002] Medical sutures with needles are widely used in the suturing of human tissues, organs and skin. Before use, the sutures are usually packaged in cardboard or plastic trays. The packaging protects the sutures and needles during transportation and storage, and makes it easy for doctors to easily and smoothly remove the sutures for suturing during surgery. Currently, the common packaging forms for medical sutures are mainly of the following two types: (I) Paper card packaging: When using paper cards to package sutures, the sutures are generally wrapped in a figure-eight shape and placed in the packaging. The suture needle is held in place by the paper card. The packaging is done by folding different parts of the paper card. When in use, the paper card is unfolded or a part of the paper card is torn open to pull out the suture. However, paper card packaging does not have a dedicated suture pulling channel. After unfolding the packaging, the suture is easy to unravel. During the suture pulling process, the sutures may entangle or even knot, affecting the suturing operation during surgery. (II) Plastic tray packaging: Plastic tray packaging mostly adopts an upper and lower cover type or one-piece structure, with circular or racetrack-shaped suture grooves to place the sutures. The suture needle is fixed to the needle holder. A top cover is typically provided above the suture groove to confine the suture within the groove. When in use, the suture needle is clamped to pull the suture out of the groove. Top and bottom cover packaging is more suitable for smaller suture sizes. Because the suture groove space is limited, there is greater resistance when pulling out thicker sutures, resulting in uneven suture pulling. Furthermore, the packaging process is complex and costly. For example, Chinese patent CN113498331B discloses a package for storing sutures with needles, which uses a zipper device to guide the suture into the groove. However, when guiding the suture into the groove, the suture may get stuck in the gaps between the interleaved abutment teeth and crest teeth, causing suture damage. In integrated packaging, both the upper pressure plate and the bottom plate slot have open gaps. The gap between the upper pressure plate and the edge of the suture groove is relatively large. During the suture pulling process, the suture can easily escape from the above gaps. For example, Chinese authorized patent CN221643067U discloses a self-locking packaging box for medical sutures. After the suture escapes, it may get caught at the top corner of the upper pressure plate or the slot plate, or become tangled with the suture in the groove during the pulling process, which significantly increases the difficulty of retrieving the suture and delays the operation. In summary, existing medical suture packaging trays are prone to problems such as suture entanglement, knotting, jamming, or escape during the suture extraction process, leading to difficulties in suture extraction or suture damage, which affects the suturing operation. Summary of the Invention

[0003] To overcome the technical defects of the existing technology, the present invention provides a medical suture packaging tray. The technical solution adopted in this invention is: a medical suture packaging tray, which is a one-piece elastic structure, integrally molded by injection molding, including a base plate, an outer baffle, and an inner baffle. The outer baffle and the inner baffle are provided on the surface of the base plate. The base plate, the outer baffle, and the inner baffle surround and form a racetrack-shaped annular groove. Multiple lower suture posts are distributed approximately equidistantly on the inner surface of the outer baffle. The top surface of the lower suture posts is flush with the top surface of the outer baffle, and the bottom surface is flush with the surface of the base plate. The cross-section of the lower suture post is a dumbbell-shaped structure, with the width at both ends being greater than the width in the middle, and the width dimension varying. All parts are smoothly connected by a circular arc structure. The outer surface of the inner baffle has several upper baffle plates that radiate outwards at intervals along the axial direction. The upper baffle plates are elastic thin-walled structures with a waist drum-like structure that is wide in the middle and narrow at both ends. The area where the plate body contour changes is smoothly transitioned by a circular arc. The top of the upper baffle plate extends vertically towards the bottom plate to the surface of the bottom plate to form an upper baffle column. The bottom structure of the upper baffle column is circular or elliptical. The width of the column cross section decreases from the top to the bottom. The bottom edge is transitioned by a large circular arc with a radius of not less than 0.5 mm. The top structure of the upper baffle plate matches the curved surface structure of the lower baffle post, and the gap between the top of the upper baffle plate and the lower baffle post is 0.2~0.5mm. The gap between the top of the upper baffle plate and the outer baffle plate is 0.2~0.5mm. The gap between the bottom of the upper baffle post and the bottom of the lower baffle post is 0.4~0.8mm. The gap between the bottom of the upper baffle post and the bottom of the lower baffle post has a gradually expanding structure from the top along the direction perpendicular to the bottom plate, which is narrower at the top and wider at the bottom.

[0004] Preferably, a support column is distributed between the inner baffle and the adjacent upper baffle plate on the outer surface of the inner baffle. The support column is a semi-cylindrical structure, extending from the upper surface of the inner baffle to the bottom plate surface, with a radius ranging from 0.3 to 0.5 mm. The support column is tangent to the movement trajectory of the sewing thread.

[0005] Preferably, the lower guide post and the axially aligned upper guide post form a pairing structure. The curved surface of the column of the pairing structure adopts a conjugate arc design with a fitting gap of no more than 0.5mm, and the edges are provided with continuous rounded corners with a radius of no less than 0.2mm. The column of the lower guide post has a radial protrusion structure on the side facing the wire groove, and the protrusion height ranges from 0.5 to 1.0mm.

[0006] Preferably, the arc-shaped areas at both ends of the cable tray are provided with widened lower cable guide posts, upper cable guide plates, and corresponding upper cable guide posts. The cable tray formed by the bottom plate, outer baffle, and inner baffle is provided with a cable outlet. The outer baffle is provided with two lower cable guide posts near the cable outlet. The inner baffle extends a first cable guide plate and a second cable guide plate in the arc-shaped section area adjacent to the cable outlet. The first cable guide plate and the second cable guide plate are fixed to the inner sidewall of the inner baffle and extend 2-5mm from the inner sidewall of the inner baffle towards the center of the tray. An arc-shaped guide plate is fixedly connected inside the cable outlet of the inner baffle.

[0007] Preferably, the vertical height of the groove is 1.0~2.0mm, and the width of the groove is 5.0~7.0mm, suitable for suture products with a thread diameter of 0.04~1.5mm.

[0008] Preferably, the base plate is provided with a needle clamping component, which is composed of an M-shaped thin sheet and a V-shaped protrusion. The distance between the M-shaped thin sheet and the V-shaped protrusion is 0.5~1.0mm, which is suitable for suture needles with a needle diameter of 0.3~1.2mm. The part of the M-shaped thin sheet that contacts the suture needle is an elastic sheet, which undergoes an elastic deformation of 0.1~0.3mm when squeezed by the suture needle.

[0009] Preferably, the V-shaped protrusion has a small protrusion at its protruding end. The small protrusion is a raised stop structure with a width of 0.1~0.3mm and a height of 0.1~0.3mm, which is suitable for fine needles with a needle diameter of 0.15~0.3mm, so that the range of needle diameters that the tray can accommodate can be increased to 0.15~1.2mm. The base plate is provided with a single or double set of needle clamping components, which are suitable for packaging and fixing single or double needle sutures.

[0010] Preferably, the base plate is provided with an ejector plate, which is located next to the needle clamping component. One end of the ejector plate is integrally injection molded to the base plate, and the remaining part of the ejector plate is provided with a hollow structure between it and the base plate, which can move up and down in a direction perpendicular to the base plate. When an external force lifts the ejector plate, the side away from the connection end of the base plate can lift the tail of the suture needle.

[0011] Preferably, the surface of the base plate is provided with a second winding post hole, a positioning hole and a first winding post hole. The positioning hole, the first winding post hole and the second winding post hole cooperate to fix the tray and the winding device. The elastic thin-walled structure of the upper wire stop plate is configured such that when it is lifted 3~5mm in the vertical direction, a wire threading gap of 0.3~1.5mm is formed between the upper wire stop post and the outer baffle. The base plate is provided with a label slot.

[0012] Preferably, the tray is made of polypropylene or polyethylene, and the upper baffle plate and top structure are in the shape of two, three or more arc-shaped contours. The curved surface of the lower baffle post is adjusted in angle and size according to the multiple arc-shaped contours, and the two form a continuous arc-shaped guide surface.

[0013] The beneficial effects of the present invention are as follows: The present invention provides a medical suture packaging tray, which is an integral elastic structure and is integrally molded by injection molding. It includes a bottom plate, an outer baffle and an inner baffle, which together form a racetrack-shaped annular suture groove. By setting the upper and lower suture-blocking posts in a cooperative structure, the suture can be smoothly pulled out, preventing it from escaping and knotting. The upper and lower suture-blocking posts cooperate to form a continuous arc-shaped guide surface, reducing the contact area of ​​the friction surface between the suture and the tray suture groove, and avoiding suture jamming, pulling, suture damage or poor suture pulling caused by pulling. The upper thread stop plate, upper thread stop post, and lower thread stop post together form a double-plane constraint structure with the base plate. The small gap design restricts the thread within the thread groove channel during the pulling process, eliminating the phenomenon of the thread escaping, unraveling, or even tangling and knotting. The packaging structure can precisely guide the two threads of the double-needle thread, ensuring that the double-needle thread maintains a parallel movement posture during the thread pulling process; The ejector plate moves up and down through a hollow structure, which can easily lift the tail of the suture needle for easy clamping and removal; It is compatible with various specifications of sutures with thread diameters of 0.04~1.5mm and needle diameters of 0.15~1.2mm; The elastic thin-walled structure of the upper wire guide plate can be lifted to form a wire threading gap, which, together with the winding device, enables rapid winding and packaging. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure of the lower baffle post and the upper baffle plate in this invention; Figure 4 This is a schematic diagram of the structure of the outer baffle and the inner baffle in this invention; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the structure of the first and second wire-blocking plates in this invention; Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 9 This is a schematic diagram of the structure of Embodiment 4 of the present invention; Figure 10 This is another structural schematic diagram of Embodiment 4 of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Outer baffle; 3. Inner baffle; 4. Arc-shaped guide plate; 5. Pin assembly; 501. M-shaped thin sheet; 502. V-shaped protrusion; 503. Elastic sheet; 6. Ejector plate; 7. Positioning hole; 8. First winding post hole; 9. Label slot; 10. Lower wire stop post; 11. Upper wire stop plate; 12. Upper wire stop post; 13. Support post; 14. Wire groove; 15. Wire outlet; 16. Small boss; 17. First wire stop plate; 18. Second wire stop plate; 19. Second winding post hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings: Example 1 like Figures 1 to 7 As shown, the medical suture packaging tray of this embodiment is a one-piece elastic structure, integrally molded by injection molding, and made of polypropylene (PP) material. The tray mainly includes a base plate 1, an outer baffle 2, and an inner baffle 3. The outer baffle 2 and the inner baffle 3 are provided on the surface of the base plate 1. The base plate 1, the outer baffle 2, and the inner baffle 3 enclose a racetrack-shaped annular groove 14. The groove 14 constitutes the suture receiving cavity and the suture pulling channel. Multiple lower suture blocking posts 10 are approximately equidistantly distributed along the longitudinal direction of the groove 14 on the inner surface of the outer baffle 2. The top surface of the lower suture blocking posts 10 is flush with the top surface of the outer baffle 2, and the bottom surface is flush with the surface of the base plate 1. The cross-section of the lower suture blocking posts 10 is dumbbell-shaped, with the width at both ends being greater than the width in the middle. The width changes are all smoothly connected by a rounded structure. This structure is beneficial for demolding during injection molding and avoids damage to the suture from sharp edges. The inner baffle 3 has several upper baffle plates 11 that radiate outwards at intervals along the axial direction on its outer surface. The upper baffle plates 11 are elastic thin-walled structures with a waist-drum-like structure that is wide in the middle and narrow at both ends at the top. The area where the plate body changes shape is smoothly transitioned with an arc. The top of the upper baffle plates 11 extends vertically towards the bottom plate 1 to the surface of the bottom plate 1 to form upper baffle columns 12. The bottom structure of the upper baffle columns 12 is circular or elliptical. The width of the column cross-section decreases from the top to the bottom. The bottom edge is transitioned with a large arc rounded corner with a radius of not less than 0.5 mm, which significantly reduces the probability of the sewing thread getting caught on the bottom of the column. The curvature of the upper baffle column 12 matches the movement trajectory of the sewing thread during the thread pulling process. By reducing the contact area of ​​the friction surface between the sewing thread and the support plate groove 14, the phenomena such as sewing thread jamming, thread damage caused by pulling, or poor thread pulling can be effectively avoided.

[0017] It should be noted that: the base plate 1, the outer baffle 2 and the inner baffle 3 together form a racetrack-shaped annular wire trough 14, the side of the outer baffle 2 near the inner baffle 3 forms the outer wall of the wire trough, and the side of the inner baffle 3 near the outer baffle 2 forms the inner wall of the wire trough.

[0018] The top structure of the upper baffle plate 11 matches the cylindrical curved surface structure of the lower baffle post 10. Specifically, the gap between the top of the upper baffle plate 11 and the cylindrical body of the lower baffle post 10 is 0.2~0.5mm, preferably 0.3mm; the gap between the top of the upper baffle plate 11 and the outer baffle plate 2 is 0.2~0.5mm, preferably 0.3mm; the gap between the bottom of the upper baffle post 12 and the bottom of the lower baffle post 10 is 0.4~0.8mm, preferably 0.6mm. The gap between the bottom of the upper baffle post 12 and the bottom of the lower baffle post 10 has a gradually expanding structure from the top along the direction perpendicular to the base plate 1, which is beneficial for the demolding of the baffle post during injection molding.

[0019] The lower thread-stopping post 10 and the axially aligned upper thread-stopping post 12 form a paired structure. The curved surface of the paired structure adopts a conjugate arc design with a fitting gap of ≤0.5mm, and the edges are provided with continuous rounded corners with a radius of ≥0.2mm. This design ensures that there are no obstructions in the movement path of the thread within the thread groove 14, reducing the probability of the thread getting stuck on the thread-stopping plate or thread-stopping post during the thread pulling process. The lower thread-stopping post 10 has a radial protrusion structure on the side of the post facing the thread groove 14, with a protrusion height ranging from 0.5 to 1.0mm, preferably 0.8mm. This protrusion structure increases the distance between the thread and the gap, reducing the probability of the thread getting stuck in the gap or on the thread-stopping post during the thread pulling process.

[0020] Support columns 13 are distributed between the outer surface of the inner baffle 3 and the upper baffle plate 11. The support columns 13 are semi-cylindrical structures that extend from the upper surface of the inner baffle 3 to the surface of the bottom plate 1, with a radius ranging from 0.3 to 0.5 mm, preferably 0.4 mm. The column body of the support column 13 is tangent to the movement trajectory of the sewing thread. During the process of pulling the sewing thread, the frictional resistance is reduced by decreasing the contact area of ​​the thread body, so as to achieve smooth sewing thread extraction.

[0021] A thread outlet 15 is provided on the trough 14 formed by the base plate 1, outer baffle 2, and inner baffle 3. The arc-shaped areas at both ends of the trough 14 are equipped with widened lower thread-blocking posts 10, upper thread-blocking plates 11, and corresponding upper thread-blocking posts 12. Two lower thread-blocking posts 10 are located near the thread outlet 15 on the outer baffle 2. The double-post structure and the widened plate-post structure together ensure a smoother thread pulling process. The grooved areas at both ends of the racetrack-shaped annular trough 14 and the open area at the thread outlet 15 are relatively large, allowing the stitching to pass through the grooved areas at both ends. The risk of the thread coming loose at the open position of the outlet is significantly increased. To prevent the thread from coming loose and spreading in the above-mentioned area and increasing the resistance to pulling the thread, and to ensure that the thread remains stable during the movement at the outlet, a widened thread-blocking plate and a corresponding thread-blocking post are provided in the arc area at both ends of the thread groove 14. The plate and post structure are designed with an arc shape to ensure that the thread-blocking post forms a continuous guide surface in the thread groove 14. Two lower thread-blocking posts 10 are provided at the outlet. The double-post structure and the widened plate and post structure together ensure that the thread pulling process is smoother.

[0022] The inner baffle 3 extends a first thread-blocking plate 17 and a second thread-blocking plate 18 in the arc-shaped section area adjacent to the outlet 15. The first thread-blocking plate 17 and the second thread-blocking plate 18 are fixed to the inner sidewall of the inner baffle 3 and extend 2~5mm, preferably 3mm, from the inner sidewall of the inner baffle 3 toward the center of the tray. An arc-shaped guide plate 4 is fixedly connected inside the outlet 15 of the inner baffle 3 for guiding the stitch fixation.

[0023] The aforementioned thread stop plate forms a vertical displacement constraint on the exposed thread from the needle tail to the thread exit 15. For threads with a diameter ≥ 0.4 mm, the bending radius is larger, requiring the second thread stop plate 18 to work together with the first thread stop plate 17 to restrict the thread from escaping upwards, thus preventing the thread from being squeezed out of the tray during transportation and causing damage to the thread.

[0024] The vertical height of the suture groove 14 is 1.0~2.0mm, preferably 1.5mm, and the width of the suture groove 14 is 5.0~7.0mm, preferably 6.0mm. This size range can accommodate suture products with a thread diameter of 0.04~1.5mm, realize universal packaging, and be suitable for suture products of different specifications.

[0025] A needle clamping component 5 is provided on the base plate 1. The needle clamping component 5 consists of an M-shaped thin sheet 501 and a V-shaped protrusion 502. The distance between the M-shaped thin sheet 501 and the V-shaped protrusion 502 is 0.5~1.0mm, preferably 0.8mm, which is suitable for suture needles with a needle diameter of 0.3~1.2mm. The part of the M-shaped thin sheet 501 that contacts the suture needle is an elastic sheet 503. When the elastic sheet 503 is squeezed by the suture needle, it generates an elastic deformation of 0.1~0.3mm, preferably 0.2mm. The suture needle is clamped and fixed between the M-shaped thin sheet 501 and the V-shaped protrusion 502 by the rebound force. The spacing of the thin sheet can be dynamically adjusted to achieve needle diameter self-adaptation. The M-shaped and V-shaped configurations are paired to fix the suture needle and ensure that the needle body does not rotate.

[0026] The V-shaped protrusion 502 has a small protrusion 16 at its protruding end. The small protrusion 16 is a raised stop structure with a width of 0.1~0.3mm and a height of 0.1~0.3mm, preferably with a width of 0.2mm and a height of 0.2mm. The small protrusion 16 provides additional restraint for fine needles with a needle diameter of 0.15~0.3mm, which helps to fix the small suture needles and eliminates the risk of small needles loosening or falling off during storage and transportation. This allows the range of suture needle diameters that the tray can accommodate to be increased to 0.15~1.2mm.

[0027] The base plate 1 is equipped with a single or double set of needle components 5, which can be adapted to the packaging and fixing needs of single or double needle sutures.

[0028] A pin plate 6 is provided on the base plate 1. The pin plate 6 is located next to the needle clamping component 5. One end of the pin plate 6 is integrally injection molded and connected to the base plate 1. The remaining part of the pin plate 6 is provided with a hollow structure between it and the base plate 1, so that the pin plate 6 can move up and down in a direction perpendicular to the base plate 1. When an external force is applied to the pin plate 6 from the bottom of the base plate 1, the pin plate 6 can be lifted. The side away from the connecting end of the base plate 1 can lift the tail of the suture needle, which is convenient for clamping and removing during surgery.

[0029] The surface of the base plate 1 is provided with a second winding post hole 19, a positioning hole 7 and a first winding post hole 8. The positioning hole 7, the first winding post hole 8 and the second winding post hole 19 cooperate to fix the tray on the winding device. The upper wire stop plate 11 is an elastic thin-walled structure. It is configured such that when it is lifted 3~5mm in the vertical direction, a wire threading gap of 0.3~1.5mm is formed between the upper wire stop post 12 and the outer baffle plate 2. Preferably, the lifting height is 4mm and the wire threading gap is 0.9mm.

[0030] The base plate 1 is provided with a label card slot 9. During packaging, the folded label card is inserted into the label card slot 9 to fix the label card. The label card can be printed with identifiable information of the suture product specifications, which makes it easy for medical staff to quickly identify the product specifications during surgery.

[0031] Example 2 The difference between this embodiment and Embodiment 1 is that the tray is made of polyethylene (PE) material instead of polypropylene. Polyethylene material has better flexibility and low temperature resistance, making it suitable for suture products that need to be stored or transported in low temperature environments.

[0032] The other structures are the same as in Example 1, and will not be described again.

[0033] Example 3 like Figures 8 to 10 As shown, the difference between this embodiment and embodiment 1 is that the shape of the upper baffle plate 11 and its top structure is a two-section arc contour. Specifically, the top of the upper baffle plate 11 is smoothly connected by two arcs of different curvatures. The cylindrical surface of the lower baffle post 10 is adjusted in angle and size according to the two arc contours, and the two form a continuous arc guide surface.

[0034] This two-section arc structure is suitable for sewing products with larger thread diameters (such as 0.8~1.5mm), which can further reduce the contact area between the sewing thread and the thread stop plate, and reduce the resistance to thread pulling.

[0035] The other structures are the same as in Example 1, and will not be described again.

[0036] Example 4 The difference between this embodiment and embodiment 3 is that the shape of the upper baffle plate 11 and its top structure is a three-segment arc contour. The top of the upper baffle plate 11 is smoothly connected by three arcs of different curvatures. The curved surface of the lower baffle post 10 is adjusted in angle and size according to the three arc contours, and the two form a continuous arc guide surface.

[0037] This three- or even multi-segment arc structure is more suitable for sewing products with smaller thread diameters (such as 0.04~0.2mm), providing a smoother guide surface and ensuring smooth pulling of thicker threads.

[0038] The other structures are the same as in Example 3, and will not be described again.

[0039] Example 5 like Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment 1 is that: two sets of pin clamping components 5 are provided on the base plate 1 to meet the packaging and fixing requirements of double-needle sutures. The two sets of pin clamping components 5 are arranged close to each other on the base plate 1 and can share a pin plate 6. The two sets of pin clamping components 5 can fix two suture needles at the same time. The packaging structure can form a precise diversion guide for the two sutures of the double-needle suture, ensuring that the double-needle sutures maintain a parallel movement posture during the suture pulling process, avoiding sudden changes in suture pulling resistance caused by the crossing and entanglement of the double threads, or the sutures falling out of the base plate.

[0040] The other structures are the same as in Example 1, and will not be described again.

[0041] The medical suture packaging tray provided by this invention is manufactured by injection molding in one piece, which is simple and low in cost. The tray has a reasonable structural design and the suture pulling process is smooth. It can effectively prevent sutures from escaping, knotting or getting stuck. It is suitable for packaging suture products with various suture diameters and needle diameters and has a wide range of application prospects.

[0042] Working principle: The medical suture packaging tray of this invention is an integrated elastic structure, which is integrally molded by injection molding and made of plastics with good elasticity and toughness such as polypropylene or polyethylene. The tray mainly includes a base plate 1, an outer baffle 2 and an inner baffle 3. The three together form a racetrack-shaped annular groove 14. The groove 14 constitutes the suture receiving cavity and the suture pulling channel. Multiple lower suture blocking posts 10 are distributed on the inner surface of the outer baffle 2, and multiple upper suture blocking plates 11 and their vertically extending upper suture blocking posts 12 are distributed on the outer surface of the inner baffle 3. The lower suture blocking posts 10 and the upper suture blocking plates 11 cooperate with each other to form a continuous arc-shaped guide surface, ensuring that the suture moves smoothly and does not escape during the pulling process. During the sewing packaging process, the sewing needle is first fixed in the needle clamping component 5. The needle clamping component 5 consists of an M-shaped thin sheet 501 and a V-shaped protrusion 502, with a distance of 0.5~1.0mm between them. When the sewing needle is inserted, the elastic sheet 503 of the M-shaped thin sheet 501 is compressed and produces an elastic deformation of 0.1~0.3mm. A groove is provided on the base plate 1 near one end of the elastic sheet 503 to allow the elastic sheet 503 to deform, avoiding obstruction of the deformation of the elastic sheet 503. The sewing needle is clamped and fixed between the M-shaped thin sheet 501 and the V-shaped protrusion 502 by the rebound force. For fine needles with a diameter ≤0.3mm, the small protrusion 16 at the protruding end of the V-shaped protrusion 502 provides additional restraint to prevent the small needle from loosening or falling off.

[0043] The tray is fixed to the winding device through the positioning hole 7, the first winding post hole 8, and the second winding post hole 19. The first winding post is inserted into the first winding post hole 8, and the second winding post is inserted into the second winding post hole 19. The suture is guided from the needle tail to pass around the first winding post and the second winding post in a clockwise direction, so that the bending radius is large and the suture is avoided from being excessively bent and deformed.

[0044] The winding device lifts the upper thread-blocking plate 11 and the upper thread-blocking post 12 vertically by 3-5mm, creating a thread-passing gap of 0.3-1.5mm between the upper thread-blocking post 12 and the outer baffle 2. The top block of the winding device moves around the racetrack-shaped thread groove 14, lifting 1-2 upper thread-blocking plates 11 in sequence during the movement. The sewing thread enters the thread groove 14 through the thread-passing gap. The top block of the winding device continues to move, removing the lifting force of the upper thread-blocking plate 11. The upper thread-blocking plate 11, through its elastic restoring force, drives the upper thread-blocking post 12 back to its initial position, sealing the sewing thread inside the thread groove 14. It should be noted that the winding device can be a medical suture winding device in the prior art, which includes at least: a tray platform for fixing the tray, a top block assembly for lifting the upper suture plate 11, and a drive assembly for driving the tray to rotate. During winding, the top block lifts the upper suture plate 11 in sequence, so that a threading gap of 0.3~1.5mm is formed between the upper suture post 12 and the outer baffle 2. After the suture enters the suture groove 14 through the gap, the top block releases the lifting force, and the upper suture plate 11 returns to its original position by its own elastic restoring force, sealing the suture in the suture groove 14. The specific structure of the winding device is not the focus of this invention and will not be described in detail here. Those skilled in the art can use known winding devices to implement it. After packaging, the label card printed with the suture product specifications is folded and inserted into the label card slot 9 to fix the label card and facilitate medical staff to quickly identify the product specifications during surgery.

[0045] During suture retrieval, medical staff hold a tray and apply force to the ejector plate 6 from the bottom of the base plate 1. One end of the ejector plate 6 is integrally injection molded to the base plate 1, while the remaining parts have a hollow structure between them and the base plate 1, allowing it to move up and down in a direction perpendicular to the base plate 1. When the ejector plate 6 is lifted by external force, the side away from the connection end of the base plate 1 lifts the tail of the suture needle, causing the needle tail to break free from the constraint of the needle clamping component 5. Using needle holders, the rear section of the suture needle body is clamped, and the suture is continuously pulled outward from the suture outlet 15. The suture moves along the racetrack-shaped suture groove 14, and its movement path is constrained by the following structure: The function of the lower thread-stopping post 10: The cross-section of the lower thread-stopping post 10 is dumbbell-shaped, wide at both ends and narrow in the middle. The width changes are smoothly connected by an arc structure. The top surface of the lower thread-stopping post 10 is flush with the top surface of the outer baffle 2, and the bottom surface is flush with the surface of the base plate 1. The upper thread-stopping plate 11, the upper thread-stopping post 12, and the lower thread-stopping post 10 together form a double-plane constraint with the base plate 1, which restricts the sewing thread within the channel of the thread groove 14. The lower thread-stopping post 10 and the upper thread-stopping post 12 work together to effectively prevent the sewing thread from coming out of the thread groove 14 from the gap, which can reduce the probability of the sewing thread getting stuck on the thread-stopping plate or the thread-stopping post, making it easier to retrieve the sewing thread. The functions of the upper thread stop plate 11 and the upper thread stop post 12 are as follows: The upper thread stop plate 11 is an elastic thin-walled structure with a drum-like shape that is wider in the middle and narrower at both ends. The contour of the plate changes smoothly with an arc. The bottom structure of the upper thread stop post 12 is circular or elliptical, and the width of the post cross-section decreases from top to bottom. The bottom edge uses a large arc rounded corner with a radius of not less than 0.5mm to significantly reduce the probability of the thread getting caught on the bottom of the post. The curvature of the upper thread stop post 12 matches the movement trajectory of the thread during the thread pulling process, thereby reducing the probability of the thread getting caught on the bottom of the post. The contact area of ​​the friction surface with the suture groove 14 can effectively avoid suture jamming, suture damage caused by pulling, or difficulty in suture extraction. The bottom edge of the upper suture post 12 adopts a large arc rounded corner transition with a radius of ≥0.5mm, which significantly reduces the probability of the suture getting caught on the bottom of the post. In addition, the outline of the upper suture plate 11 and the lower suture post 10 both adopt a continuous arc transition structure, so that there are no obstructions in the movement path of the suture in the suture groove 14, reducing the chance of the suture getting stuck on the suture plate or suture post during the suture extraction process, and making the suture retrieval during surgery smoother. The fit between the lower baffle post 10 and the upper baffle post 12: The top structure of the upper baffle plate 11 fits the curved surface structure of the lower baffle post 10. The gap between the top of the upper baffle plate 11 and the lower baffle post 10 is 0.2~0.5mm. The gap between the top of the upper baffle plate 11 and the outer baffle plate 2 is 0.2~0.5mm. The lower baffle post 10 and the axially aligned upper baffle post 12 form a pairing structure. The curved surface of the pairing structure adopts a conjugate arc design with a fit gap ≤0.5mm. The edges are provided with continuous rounded corners with a radius ≥0.2mm. The gap between the bottom of the upper baffle post 12 and the bottom of the lower baffle post 10 is 0.4~0.8mm. This gap has a gradually expanding structure from the top along the direction perpendicular to the bottom plate 1, which is beneficial for the demolding of the baffle post during injection molding. The function of the support column 13: Support columns 13 are distributed between adjacent upper baffle plates 11. The support column 13 is a semi-cylindrical structure with a radius ranging from 0.3 to 0.5 mm. The column is tangent to the movement trajectory of the sewing thread. During the process of pulling the sewing thread, the frictional resistance is reduced by decreasing the contact area of ​​the thread. The function of the radial protrusion structure: The lower thread stop post 10 has a radial protrusion structure on the side of the post facing the thread groove 14. The height of the protrusion ranges from 0.5 to 1.0 mm, which increases the distance between the thread and the gap and reduces the probability of the thread getting stuck in the gap or on the thread stop post during the thread pulling process. Special structure at the thread outlet 15: The outer baffle 2 is provided with two lower thread-blocking posts 10 near the thread outlet 15. The inner baffle 3 extends the first thread-blocking plate 17 and the second thread-blocking plate 18 in the arc section area adjacent to the thread outlet 15. The two extend 2~5mm from the inner wall of the thread groove 14 inwards, forming a vertical displacement constraint on the exposed suture from the needle tail to the thread outlet 15. For sutures with a diameter ≥0.4mm, the bending radius is larger, and the second thread-blocking plate 18 needs to work together with the first thread-blocking plate 17 to restrict the suture from escaping upwards. An arc-shaped guide plate 4 is fixedly connected inside the thread outlet 15 of the inner baffle 3 to guide and fix the suture.

[0046] Guided by the continuous arc-shaped guide surface formed by the upper thread-stopping post 12 and the lower thread-stopping post 10, the thread moves along the racetrack-shaped thread groove 14 and is completely removed from the thread outlet 15. Because the upper thread-stopping post 12 and the lower thread-stopping post 10 cooperate to form a continuous arc-shaped guide surface in the thread groove 14, the gap between the posts is small. During the thread pulling process, the thread tail is restricted in the guide channel formed by the arc-shaped curved surface of the thread-stopping post and cannot escape to the outer edge of the tray. Even if the thread tail moves to the slotted area of ​​the bottom plate 1 and the outer baffle 2, the thread is difficult to enter the gap and catch the thread-stopping post because the curved surface of the thread-stopping post is continuous and the gap is small.

[0047] For double-needle sutures, the packaging structure can precisely guide the two sutures to flow separately. The double-needle sutures maintain a parallel motion during the suture pulling process, avoiding sudden changes in suture pulling resistance caused by the crossing or tangling of the two sutures, or the sutures falling out of the base plate 1, thus playing a role in preventing detachment.

[0048] The vertical height of the thread groove 14 is 1.0~2.0mm, and the width of the thread groove 14 is 5.0~7.0mm, which can accommodate suture products with a thread diameter of 0.04~1.5mm. The M-shaped thin plate 501 of the needle holder component 5 can dynamically adjust the spacing, which can accommodate suture needles with a needle diameter of 0.3~1.2mm. The protruding end of the V-shaped protrusion 502 is provided with a small protrusion 16. The small protrusion 16 is a raised stop structure with a width of 0.1~0.3mm and a height of 0.1~0.3mm, preferably 0.2mm in width and 0.2mm in height. The small protrusion 16 provides additional support for fine needles with a needle diameter of 0.15~0.3mm. The tension is used to help fix small suture needles, eliminating the risk of small needles loosening or falling off during storage and transportation. This allows the tray to accommodate suture needle diameters ranging from 0.15 to 1.2 mm. The base plate 1 is equipped with single or double needle clamping components 5, which can meet the packaging and fixing needs of single or double needle sutures. The shape of the upper thread-blocking plate 11 and its top structure can be adjusted to a two-, three-, or multi-segment arc contour. The curved surface of the lower thread-blocking column 10 is adjusted in angle and size according to the multi-segment arc contour, and the two form a continuous arc-shaped guide surface, so that there are no obstructions in the movement path of the suture within the thread groove 14, achieving universal packaging.

[0049] It should be noted that the height of the wire groove 14 shown in the attached figure is higher than the actual size of the wire groove 14. The corresponding parts that are adapted to the wire groove 14 are also higher than the actual height of the parts. The attached figure shows a wire groove 14 with a height slightly higher than the actual height for easy observation. The vertical height of the wire groove 14, which is formed by the bottom plate 1, the outer baffle 2 and the inner baffle 3 in a racetrack-shaped ring structure, is 1.0~2.0mm.

[0050] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A medical suture packaging tray, characterized in that, It is an integral elastic structure, integrally molded by injection molding, including a base plate (1), an outer baffle (2) and an inner baffle (3). The surface of the base plate (1) is provided with the outer baffle (2) and the inner baffle (3). The base plate (1), the outer baffle (2) and the inner baffle (3) enclose a wire groove (14) with a racetrack-shaped ring structure. The inner surface of the outer baffle (2) is approximately equidistantly distributed with multiple lower baffle posts (10). The top surface of the lower baffle post (10) is flush with the top surface of the outer baffle (2), and the bottom surface is flush with the surface of the base plate (1). The cross-section of the lower baffle post (10) is a dumbbell-shaped structure, with the width at both ends being greater than the width in the middle, and the width dimension varies. All parts are smoothly connected by a circular arc structure. The outer surface of the inner baffle (3) is distributed with several upper baffle plates (11) that radiate outward along the axial direction. The upper baffle plate (11) is an elastic thin-walled structure with a waist drum-like structure that is wide in the middle and narrow at both ends at the top. The area where the plate body contour changes is smoothly transitioned by a circular arc. The top of the upper baffle plate (11) extends vertically to the surface of the bottom plate (1) to form an upper baffle column (12). The bottom structure of the upper baffle column (12) is circular or elliptical. The width of the column cross section decreases from the top to the bottom. The bottom edge is transitioned by a large circular arc with a radius of not less than 0.5 mm. The top structure of the upper baffle plate (11) matches the curved surface structure of the lower baffle post (10), and the gap between the top of the upper baffle plate (11) and the lower baffle post (10) is 0.2~0.5mm. The gap between the top of the upper baffle plate (11) and the outer baffle plate (2) is 0.2~0.5mm. The gap between the bottom of the upper baffle post (12) and the bottom of the lower baffle post (10) is 0.4~0.8mm. The gap between the bottom of the upper baffle post (12) and the bottom of the lower baffle post (10) has a gradually expanding structure that is narrower at the top and wider at the bottom from the top along the direction perpendicular to the bottom plate (1).

2. The medical suture packaging tray according to claim 1, characterized in that, Support columns (13) are distributed between the outer surface of the inner baffle (3) and the upper baffle plate (11). The support columns (13) are semi-cylindrical structures. The support columns (13) extend from the upper surface of the inner baffle (3) to the surface of the bottom plate (1) with a radius of 0.3~0.5mm. The column body of the support column (13) is tangent to the movement trajectory of the sewing thread.

3. The medical suture packaging tray according to claim 1, characterized in that, The lower baffle post (10) and the axially aligned upper baffle post (12) form a pairing structure. The curved surface of the pairing structure adopts a conjugate arc design with a fitting gap of no more than 0.5 mm. The edges are provided with continuous rounded corners with a radius of no less than 0.2 mm. The lower baffle post (10) has a radial protrusion structure on the side of the post facing the groove (14). The protrusion height ranges from 0.5 to 1.0 mm.

4. The medical suture packaging tray according to claim 1, characterized in that, The arc-shaped areas at both ends of the wire groove (14) are provided with widened lower wire-blocking posts (10), upper wire-blocking plates (11) and corresponding upper wire-blocking posts (12). The wire groove (14) formed by the bottom plate (1), outer baffle (2) and inner baffle (3) is provided with a wire outlet (15). The outer baffle (2) is provided with two lower wire-blocking posts (10) near the wire outlet (15). The inner baffle (3) extends a first wire-blocking plate (17) and a second wire-blocking plate (18) in the arc-shaped area near the wire outlet (15). The first wire-blocking plate (17) and the second wire-blocking plate (18) are fixed to the inner sidewall of the inner baffle (3) and extend 2~5mm from the inner sidewall of the inner baffle (3) towards the center of the tray. An arc-shaped guide plate (4) is fixedly connected inside the wire outlet (15) of the inner baffle (3).

5. The medical suture packaging tray according to claim 1, characterized in that, The vertical height of the groove (14) is 1.0~2.0mm, and the width of the groove (14) is 5.0~7.0mm, which is suitable for suture products with a wire diameter of 0.04~1.5mm.

6. The medical suture packaging tray according to claim 1, characterized in that, The base plate (1) is provided with a needle clamping component (5), which is composed of an M-shaped thin sheet (501) and a V-shaped protrusion (502). The distance between the M-shaped thin sheet (501) and the V-shaped protrusion (502) is 0.5~1.0mm, which is suitable for suture needles with a needle diameter of 0.3~1.2mm. The part of the M-shaped thin sheet (501) that contacts the suture needle is an elastic sheet (503). When the elastic sheet (503) is squeezed by the suture needle, it produces an elastic deformation of 0.1~0.3mm.

7. The medical suture packaging tray according to claim 6, characterized in that, The V-shaped protrusion (502) has a small protrusion (16) at its protruding end. The small protrusion (16) is a protruding stop structure with a width of 0.1~0.3mm and a height of 0.1~0.3mm, which is suitable for fine needles with a needle diameter of 0.15~0.3mm. The base plate (1) is provided with a single or double set of needle clamping components (5), which are suitable for packaging and fixing single or double needle sutures.

8. The medical suture packaging tray according to claim 1, characterized in that, The base plate (1) is provided with an ejector plate (6), which is located next to the needle clamping component (5). One end of the ejector plate (6) is integrally injection molded to the base plate (1). The remaining part of the ejector plate (6) is provided with a hollow structure between it and the base plate (1), and can move up and down in a direction perpendicular to the base plate (1). When the external force lifts the ejector plate (6), the side away from the connecting end of the base plate (1) can lift the tail of the suture needle.

9. The medical suture packaging tray according to claim 1, characterized in that, The surface of the base plate (1) is provided with a second winding post hole (19), a positioning hole (7) and a first winding post hole (8). The positioning hole (7), the first winding post hole (8) and the second winding post hole (19) cooperate to fix the tray and the winding device. The elastic thin-walled structure of the upper wire stop plate (11) is configured such that when it is lifted 3~5mm in the vertical direction, a wire threading gap of 0.3~1.5mm is formed between the upper wire stop post (12) and the outer baffle (2). The base plate (1) is provided with a label slot (9).

10. The medical suture packaging tray according to any one of claims 1 to 9, characterized in that, The tray is made of polypropylene or polyethylene. The upper baffle plate (11) and the top structure are in the shape of two, three or more arc-shaped contours. The curved surface of the lower baffle column (10) is adjusted according to the angle and size of the multiple arc-shaped contours, and the two form a continuous arc-shaped guide surface.

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