Tension-reducing skin suture wire feeding method

Abstract

The application discloses a tension-reducing skin suture thread feeding method. The tension-reducing skin suture thread feeding method shoots a suture needle through a suture device, and then feeds a barbed suture thread for skin suture; a plurality of suture needles are arranged on the suture device, and an independently arranged barbed suture thread is arranged on each suture needle, and the barbed suture thread can be separated from the suture needle; the suture device comprises a needle changing mechanism for switching the suture needle to be shot; and the suture device comprises a firing mechanism for firing the suture needle to be shot.

Description

Technical Field

[0001] This invention relates to the field of medical device mechanical technology, and in particular to suture devices. Background Technology

[0002] Skin suturing refers to the surgical procedure of repairing a patient's broken or damaged skin and suturing it with surgical sutures to allow the wound to heal.

[0003] Currently, the traditional method of suturing skin wounds involves using sutures. This requires medical staff to repeatedly puncture the skin with a needle and suture thread, a cumbersome and time-consuming procedure. Furthermore, using the same suture thread for the entire wound and then tying the end can lead to uneven stress distribution in different areas of the wound and fails to reduce tension on the skin. This results in noticeable scarring after healing, with adverse reactions such as scar widening and hyperplasia, affecting the patient's function and appearance. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a tension-reducing skin suture feeding method to solve at least one of the above technical problems.

[0005] To achieve the above objectives, the present invention provides a method for tension-reducing skin suture thread delivery, characterized in that a suture needle is ejected through a suture device, thereby delivering a barbed suture thread for skin suturing;

[0006] The suture device is equipped with multiple suture needles, each of which is threaded with an independently designed barbed suture thread, which can be detached from the suture needle.

[0007] A new method for feeding sutures with reduced pressure has been developed, transforming the traditional whole-strand feeding method into individual segment feeding.

[0008] The suture device includes a needle-changing mechanism for switching the ejected suture needles.

[0009] The suture device includes a firing mechanism for firing the suture needle.

[0010] More preferably, each 5 square centimeter suture area uses barbed sutures injected independently by at least three suture needles.

[0011] More preferably, the suture needle is a hollow needle body, the end of the barbed suture is provided with a check structure, the side wall of the suture needle is provided with a through hole through which the barbed suture partially passes, and the side wall of the suture needle is provided with a receiving groove for embedding the check structure.

[0012] It also includes a limiting sleeve for confining the check structure within the receiving groove, the limiting sleeve being slidably connected to the suture needle.

[0013] More preferably, the needle changing mechanism includes a hollow housing, a rotating needle changing bracket, and a needle changing drive for driving the rotating needle changing bracket to rotate. The rotating needle changing bracket is rotatably installed inside the hollow housing, and the suture needle is mounted on the rotating needle changing bracket. A needle outlet hole is opened at one end of the hollow housing, and the needle changing drive switches the suture needle facing the needle outlet hole.

[0014] The firing mechanism is used to drive the suture needle out of the needle outlet.

[0015] When the suture needle passes through the skin, the tip of the barbed suture needle bends into a U-shape, and the check valve is accommodated in the receiving groove. After the tip of the suture needle exits the skin, the tip of the barbed suture springs back, and under the action of the check valve, the suture needle exits the skin, while the suture remains within the skin, achieving tension-reducing suturing and skin fixation. This allows for a single pass of the suture needle through the skin to achieve the desired suturing effect.

[0016] As a preferred embodiment, the firing mechanism includes a linear propulsion assembly, which includes a linearly moving push rod for abutting a suture needle facing the needle outlet.

[0017] More preferably, the firing mechanism includes a driving component, which is linked to the push rod.

[0018] More preferably, the driving component is a manual driving component, a pneumatic driving component, or an electric driving component.

[0019] As another preferred embodiment, the firing mechanism includes a helical propulsion assembly that is linked to a suture needle facing the needle outlet.

[0020] More preferably, the end of the spiral propulsion assembly is inserted into a suture needle facing the needle outlet.

[0021] This facilitates the interaction between the two.

[0022] More preferably, the outer wall of the suture needle is provided with a spiral groove.

[0023] More preferably, the check valve structure is a limiting protrusion or an elastic expansion member.

[0024] More preferably, the elastic expansion member includes circumferentially arranged limiting spikes;

[0025] The connection between the limiting needle and the barbed suture is a pointed structure.

[0026] This design facilitates the expansion of the elastic expander, allowing it to stop flowing back on the skin's surface after expansion. When the elastic expander is compressed and passes through the skin, it expands to stop flowing back.

[0027] More preferably, the cross-section of the limiting protrusion is an ellipse or a polygon.

[0028] More preferably, the barbed suture is an absorbable suture.

[0029] More preferably, the length difference between the barbed suture and the thread feeder needle is less than 1 cm. More preferably, it is 5 mm. Preferably, the barbed suture is shorter than the length of the thread feeder needle. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a specific embodiment 1 of the tension-reducing skin suture feeding method of the present invention.

[0031] Figure 2 This is a schematic diagram of a thread-feeding needle according to a specific embodiment 1 of the present invention;

[0032] Figure 3 This is a schematic diagram of the barbed suture structure in specific embodiment 1 of the present invention.

[0033] Wherein: 1 is the suture needle, 2 is the needle outlet, 3 is the needle changing mechanism, 4 is the firing mechanism, 11 is the receiving groove, 12 is the limiting sleeve, and 13 is the elastic expansion component. Detailed Implementation

[0034] The present invention will now be further described with reference to the accompanying drawings.

[0035] See Figures 1 to 3 In specific embodiment 1, a tension-reducing skin suture feeding method is described, in which a suture needle is ejected through a suture device, thereby feeding out a barbed suture for skin suturing; the suture device is provided with multiple suture needles 1, each suture needle 1 is threaded with an independently provided barbed suture, and the barbed suture can be detached from the suture needle; the suture device includes a needle changing mechanism 3 for switching the ejected suture needles; the suture device includes a firing mechanism 4 for firing the suture needles.

[0036] The suture needle is a hollow needle body with a check structure at the end of the barbed suture. The side wall of the suture needle has a through hole through which the barbed suture partially passes, and the side wall of the suture needle has a receiving groove for embedding the check structure. It also includes a limiting sleeve for limiting the check structure in the receiving groove, and the limiting sleeve is slidably connected to the suture needle.

[0037] The needle changing mechanism includes a hollow housing, a rotating needle changing bracket, and a needle changing drive unit that drives the rotating needle changing bracket to rotate. The rotating needle changing bracket is rotatably mounted inside the hollow housing, and a suture needle is mounted on the rotating needle changing bracket. One end of the hollow housing has a needle outlet hole 2. The needle changing drive unit switches the suture needle facing the needle outlet hole 2. A firing mechanism is used to drive the suture needle out of the needle outlet hole. A suture needle is slidably connected to the rotating needle changing bracket, and the rotating needle changing bracket has a through hole for the firing mechanism to activate the suture needle. The push rod of the firing mechanism can extend into the through hole to hold the suture needle in place.

[0038] When the suture needle passes through the skin, the end of the barbed suture needle 1 bends into a U-shape, and the check valve is accommodated in the receiving groove. After the end of the suture needle exits the skin, the end of the barbed suture springs back, and under the action of the check valve, the suture needle exits the skin, while the suture remains inside the skin, achieving tension-reducing suturing and fixing of the skin. This allows for a single pass of the suture needle through the skin to achieve the desired suturing effect.

[0039] The thread feed needle is connected to the rotating needle changer via a return spring. This allows the thread feed needle to spring back into its original position after it extends.

[0040] Alternatively, the thread feed needle is magnetically connected to the firing end of the firing mechanism 4, and a limiting mechanism for the thread feed needle is provided on the side of the rotating needle changer away from the needle outlet 2. When the firing end of the firing mechanism 4 returns, the firing mechanism 4 moves backward synchronously with the thread feed needle until it reaches the limiting mechanism. The limiting mechanism limits the thread feed needle, thereby enabling the firing end of the firing mechanism 4 to move backward independently.

[0041] For firing mechanism 4, the following scheme can be adopted:

[0042] The firing mechanism 4 includes a linear propulsion assembly, which includes a linearly moving push rod used to abut the suture needle 1 facing the needle outlet 2. The firing mechanism 4 includes a drive component, which is linked to the push rod. The drive component can be a manual drive, a pneumatic drive, or an electric drive.

[0043] The firing mechanism 4 includes a helical propulsion assembly, which is linked to the suture needle 1 facing the needle outlet 2. The end of the helical propulsion assembly is inserted into the suture needle 1 facing the needle outlet 2, facilitating their linkage. The outer wall of the suture needle 1 has a helical groove. The helical propulsion assembly includes a rotary motion mechanism and a linear motion mechanism, with the movable end of the linear motion mechanism connected to the rotary motion mechanism. This facilitates helical needle insertion during forward propulsion. The linear motion mechanism can be a telescopic cylinder. The rotary motion mechanism is a drive motor.

[0044] For needle changing mechanism 3, the following scheme can be adopted;

[0045] The needle changing mechanism 3 includes a gear transmission mechanism, and the needle changing drive is connected to the rotating needle changing bracket through the gear transmission mechanism. The needle changing drive can be an electric drive, a pneumatic drive, or a manual drive.

[0046] The firing mechanism and the needle-changing mechanism are linked. One possibility is that after the firing mechanism's push rod returns to its reset position after a single firing, it triggers a proximity switch, which then controls the needle-changing mechanism's drive unit to perform a needle-changing action. Alternatively, after the needle-changing mechanism completes a single needle-changing action, it triggers a proximity switch, which then controls the firing mechanism's drive unit to fire the push rod for a single time. Of course, this is not the only possible linkage method.

[0047] Alternatively, the firing mechanism and the needle-changing mechanism can be driven independently.

[0048] See Figure 3 The check valve structure is either a limiting protrusion or an elastic expansion member 13. When the check valve structure is an elastic expansion member, the elastic expansion member is a rhomboid structure formed by four connected strips. Alternatively, the elastic expansion member includes circumferentially arranged limiting spikes; the connection between the limiting spikes and the barbed suture is a pointed structure. The pointed structure can point towards the barbs of the barbed suture. This facilitates check valve operation on the body surface after the elastic expansion member expands. When the elastic expansion member is compressed and passes through the skin, it expands to achieve check valve operation. The cross-section of the limiting protrusion is elliptical or polygonal. The barbed suture is an absorbable suture.

[0049] The length difference between the barbed suture and the feeding needle is less than 1 cm, preferably 5 mm. Preferably, the barbed suture is shorter than the length of the feeding needle.

[0050] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A suture device, characterized in that, The suture needle is ejected through the suture device, which then delivers the barbed suture for skin suturing; The suture device is equipped with multiple suture needles, each of which is threaded with an independently configured barbed suture thread, which can be detached from the suture needle; The length difference between the barbed suture and the suture needle is less than 1 cm; The suture needle is a hollow needle body, the end of the barbed suture is provided with a check structure, the side wall of the suture needle is provided with a through hole through which the barbed suture partially passes, and the side wall of the suture needle is provided with a receiving groove for embedding the check structure. It also includes a limiting sleeve for confining the check valve structure within the receiving groove, the limiting sleeve being slidably connected to the suture needle; For every 5 square centimeters of suture area, use barbed sutures injected independently by at least three suture needles; When the suture needle passes through the skin, the end of the barbed suture bends into a U-shape, and the check valve is accommodated in the receiving groove. When the end of the suture needle passes through the skin, the end of the barbed suture springs back, and under the action of the check valve, the suture needle is withdrawn from the skin, while the suture remains in the skin, achieving tension reduction and fixation of the skin. The suture needle achieves the suturing effect with a single pass through the skin. The suture device includes a needle-changing mechanism for switching the ejected suture needles; The needle changing mechanism includes a hollow housing, a rotating needle changing bracket, and a needle changing drive for driving the rotating needle changing bracket to rotate. The rotating needle changing bracket is rotatably installed inside the hollow housing, and the suture needle is installed on the rotating needle changing bracket. A needle outlet hole is opened at one end of the hollow housing, and the needle changing drive switches the suture needle facing the needle outlet hole. The suture device includes a firing mechanism for firing a suture needle, the firing mechanism being used to drive the suture needle out of the needle outlet; The suture needle is connected to the rotating needle changer via a return spring, or the suture needle is magnetically connected to the firing end of the firing mechanism. The rotating needle changer is provided with a suture needle limiting mechanism on the side away from the needle outlet. When the firing end of the firing mechanism returns, the firing mechanism moves backward synchronously with the suture needle. When it moves to the limiting mechanism, the limiting mechanism limits the suture needle, thereby enabling the firing end of the firing mechanism to move backward independently.

2. The suture device according to claim 1, characterized in that: The firing mechanism includes a linear propulsion assembly, which includes a linearly moving push rod used to abut against the suture needle facing the needle outlet.

3. A suture device according to claim 2, characterized in that: The firing mechanism includes a drive component, which is linked to the push rod.

4. A suture device according to claim 3, characterized in that: The driving component can be a manual driving component, a pneumatic driving component, or an electric driving component.

5. A suture device according to claim 1, characterized in that: The firing mechanism includes a helical propulsion assembly that is linked to a suture needle facing the needle outlet.

6. A suture device according to claim 5, characterized in that: The end of the spiral propulsion assembly is inserted into the suture needle facing the needle outlet.

7. A suture device according to claim 1, characterized in that: The outer wall of the suture needle is provided with a spiral groove.

8. A suture device according to claim 1, characterized in that: The check valve structure is a limiting protrusion or an elastic expansion member.

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