A puncture incision stapler

Abstract

The utility model discloses a puncture incision suture device, which specifically relates to the technical field of medical devices, including a suture device body with a hollow interior and a push rod arranged inside the suture device body, a split flap installed at the head of the suture device body, a push mechanism connected to the flap installed at the end of the push rod near the flap, the push rod moves inside the hollow suture device body and the flap is pushed to split and close outside the end of the suture device body through the push mechanism, a lower through hole for the suture needle to pass through is opened on the flap, a rubber plug for clamping the suture thread is embedded in the lower through hole, and a suture thread pressing block is installed on the inner wall of the suture device body. The utility model utilizes a screw to rotate in a spiral tube and push the connecting rod and the tooth part to move, so as to realize the opening and closing of the flap, and when the screw stops rotating, the flap part can be locked, which simplifies the operation steps, does not require multiple locking and positioning, and avoids secondary damage to the wound part.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a puncture incision suturing device. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive method and an inevitable trend in the development of surgical methods in the future. With the rapid development of industrial manufacturing technology, the integration of related disciplines has laid a solid foundation for the development of new technologies and methods. Coupled with the increasingly skilled operation of doctors, many open surgeries in the past have now been replaced by endoscopic surgeries, greatly increasing the opportunities for surgical selection. The traditional method of retroperitoneoscopic surgery is to make three small 1 cm incisions on the patient's waist, insert a tubular working channel called "trocar" into each, and all subsequent operations are performed through these three channels; then use specially made extended surgical instruments to complete the same steps as open surgery under television monitoring to achieve the same surgical effect.

[0003] Trocars are very important medical equipment for laparoscopic surgery, and wounds need to be sutured after surgery. However, existing trocars need to be locked and positioned multiple times during use to achieve suture needle and thread operation, which is relatively complicated and easily causes secondary damage to the wound. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a puncture incision stapler, comprising a stapler body with a hollow interior and a push rod arranged inside the stapler body, a split petal is installed at the head of the stapler body, a push mechanism connected to the petal is installed at the end of the push rod close to the petal, the push rod moves inside the hollow stapler body and the push mechanism pushes the petal to be split and joined outside the end of the stapler body;

[0005] A lower through hole for the suture needle to pass through is provided on the petals, a rubber plug for clamping the suture is embedded in the lower through hole, a suture pressing block is installed on the inner wall of the suture device body, and when the petals are merged into the inner side of the head of the suture device body, the end of the suture pressing block acts on the inner side of the lower through hole to press the suture passing through the rubber plug.

[0006] In a preferred embodiment, a valve groove for accommodating the petals is provided in the head of the stapler body.

[0007] In a preferred embodiment, a spiral tube is embedded in the tail of the stapler body, and the push rod is inserted into the interior of the spiral tube.

[0008] In a preferred embodiment, the push rod includes a screw matching the screw tube and a connecting rod cooperating with the pushing mechanism, the screw and the connecting rod are fixedly connected, the connecting rod is located inside the stapler body, the screw extends from the outside of the tail of the stapler body through the screw tube to the inside of the stapler body, and a knob is installed at the end of the screw located outside the stapler body.

[0009] In a preferred embodiment, the pushing mechanism includes a prismatic rod movable inside the stapler body and a prismatic tube fixed in the inner cavity of the stapler body head, one end of the prismatic rod is inserted into the interior of the prismatic tube and the other end is movably connected to the end of the connecting rod through a bearing, and the prismatic tube, the prismatic rod, the connecting rod and the screw are located on the same straight line;

[0010] The outer wall of the prism rod is provided with teeth connected with the petals.

[0011] In a preferred embodiment, a rotating shaft is installed at one end of the petal close to the screw rod, and the petal is movably connected to the inside of the petal groove through the rotating shaft. A fan gear is installed on the outside of the rotating shaft of the petal, and the fan gear meshes with the teeth on the outer wall of the prismatic rod.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model utilizes a screw rod to rotate in a screw tube and push the connecting rod and the tooth part to move, thereby realizing opening and closing of the petals. When the rotation of the screw rod is stopped, the petal part can be locked, thus simplifying the operation steps, eliminating the need for multiple locking and positioning, and avoiding secondary damage to the wound part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model when the petals are opened;

[0017] Figure 4 It is a schematic diagram of the internal structure of the utility model when the petals are opened.

[0018] Explanation of the reference numerals: 1 suture device body, 2 push rod, 3 petals, 4 lower through hole, 5 rubber plug, 6 suture thread pressing block, 7 petal groove, 8 screw tube, 9 screw rod, 10 connecting rod, 11 knob, 12 prismatic rod, 13 prismatic tube, 14 teeth, 15 rotating shaft, 16 sector gear, 17 middle through hole, 18 upper through hole, 19 tooth groove, 20 positioning part. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0020] like Figure 1-4 A puncture incision stapler shown in the figure comprises a stapler body 1 with a hollow interior and a push rod 2 arranged inside the stapler body 1, a split flap 3 is installed at the head of the stapler body 1, and a pushing mechanism connected to the flap 3 is installed at the end of the push rod 2 near the flap 3, the push rod 2 moves inside the hollow stapler body 1 and the pushing mechanism pushes the flap 3 to be split and joined outside the end of the stapler body 1;

[0021] A lower through hole 4 for the suture needle to pass through is provided on the petal 3, a rubber plug 5 for clamping the suture thread is embedded in the lower through hole 4, and a suture thread pressing block 6 is installed on the inner wall of the suture device body 1. When the petal 3 is merged into the inner side of the head of the suture device body 1, the end of the suture thread pressing block 6 acts on the inner side of the lower through hole 4 to press the suture thread passing through the rubber plug 5;

[0022] Furthermore, a positioning portion 20 is sleeved on the outside of the stapler body 1 near the tail end, an upper through hole 18 is opened on the positioning portion 20, and a middle through hole 17 is opened on the stapler body 1 between the petals 3 and the positioning portion 20;

[0023] Among them, the petals 3 are divided into two symmetrical groups, and the upper through hole 18, the middle through hole 17 and the lower through hole 4 are also divided into two groups. The upper through hole 18, the middle through hole 17 and the lower through hole 4 in the same group are located on the same straight line and are arranged obliquely on the outside of the stapler body 1. During use, the suture needle is used to drive the suture thread through the upper through hole 18, the middle through hole 17 and the lower through hole 4 in sequence, and the suture thread is delivered to the inside of the surgical wound;

[0024] The through hole is arranged at an angle, so that when the suture needle and the suture thread pass through the stapler body 1 , they can be partially offset from the push rod 2 inside the stapler body 1 , and the movement of the push rod 2 will not be affected.

[0025] A valve groove 7 for accommodating the valve 3 is opened at the head of the suture device body 1, and a rotating shaft 15 is installed at the end of the valve 3 close to the screw 9. The valve 3 is movably connected to the inside of the valve groove 7 through the rotating shaft 15, and is movably flipped in the valve groove 7 to achieve opening and closing on the outside of the suture device body 1.

[0026] A spiral tube 8 is embedded at the tail of the stapler body 1, and the push rod 2 is inserted into the inside of the spiral tube 8;

[0027] The push rod 2 includes a screw 9 matched with the screw tube 8 and a connecting rod 10 matched with the pushing mechanism, the screw 9 and the connecting rod 10 are fixedly connected, the connecting rod 10 is located inside the stapler body 1, the screw 9 extends from the outside of the tail of the stapler body 1 through the screw tube 8 to the inside of the stapler body 1, and a knob 11 is installed at the end of the screw 9 located outside the stapler body 1;

[0028] On the basis of the above, by rotating the knob 11, the screw 9 is driven to rotate in the screw tube 8, so that the screw 9 moves along the screw tube 8, thereby realizing the movement of the push rod 2 inside the suture device body 1, and driving the pushing mechanism to open and close the petal 3 in the petal groove 7.

[0029] The pushing mechanism includes a prismatic rod 12 movable inside the stapler body 1 and a prismatic tube 13 fixed in the inner cavity of the head of the stapler body 1, one end of the prismatic rod 12 is inserted into the interior of the prismatic tube 13 and the other end is movably connected to the end of the connecting rod 10 through a bearing, and the prismatic tube 13, the prismatic rod 12, the connecting rod 10 and the screw 9 are located on the same straight line;

[0030] On the basis of the above, another part of the connecting rod 10 in the push rod 2 is connected to the prismatic rod 12 through a bearing. The prismatic rod 12 is inserted into the prismatic tube 13 inside the stapler body 1. When the screw 9 rotates and the push rod 2 moves inside the stapler body 1, the connecting rod 10 at the end of the screw 9 also rotates and moves inside the stapler body 1. The connecting rod 10 uses the bearing to drive the prismatic rod 12 to telescope in the prismatic tube 13. The prismatic tube 13 provides a limiting effect for the prismatic rod 12, and cooperates with the bearing to prevent it from rotating with the rotation of the connecting rod 10.

[0031] A tooth 14 connected to the petal 3 is installed on the outer wall of the prism rod 12, and a sector gear 16 is installed outside the rotating shaft 15 of the petal 3, and the sector gear 16 meshes with the tooth 14 on the outer wall of the prism rod 12;

[0032] Furthermore, when the connecting rod 10 moves, the teeth 14 on its outer side will mesh with the fan-shaped gear 16 at the end of the petal 3, driving the fan-shaped gear 16 to rotate around the rotating shaft 15, and then pushing the petal 3 to flip and move in the petal groove 7, so that the petal 3 is opened or closed in the petal groove 7, and a tooth groove 19 is opened at the end of the petal groove 7, so that after the petal 3 rotates and opens, the fan-shaped gear 16 is placed inside the tooth groove 19.

[0033] On the basis of the above, when using, first send the stapler body 1 to the inside of the surgical wound, then turn the knob 11 to push the push rod 2 to move in the stapler body 1, and push the petal 3 to open in the petal groove 7 through the prismatic rod 12 and the teeth 14 at the end of the connecting rod 10 in the push rod 2. Figure 3 state, and then pass the suture needle with suture thread through the upper through hole 18, the middle through hole 17 and the lower through hole 4, and send the suture thread and suture needle to the inside of the surgical wound. Since the lower through hole 4 is filled with a rubber plug 5, when the suture needle is pulled out, the suture thread part will remain in the lower through hole 4 through the rubber plug 5, and then turn the knob 11 to reset the flap 3 in the flap groove 7, and use the suture thread pressing block 6 to press against the inner side of the lower through hole 4, press the end of the suture thread remaining on the flap 3 against the inner side of the flap 3, and then pull out the suture device body 1 to bring the suture thread out to suture the wound.

[0034] Furthermore, the rubber plug 5 is made of medical grade rubber material to ensure the safety of operation;

[0035] Furthermore, the diameters of the connecting rod 10 and the prismatic rod 12 are smaller than the diameter of the screw rod 9, so that there is enough space inside the stapler body 1 to accommodate the passage of the suture needle and the suture thread.

[0036] Furthermore, the screw rod 9 is rotated in the screw tube 8 to push the connecting rod 10 and the teeth 14 to move partially, so as to realize the opening and closing of the petals 3. When the screw rod 9 stops rotating, the petals 3 can be partially locked, thereby simplifying the operation steps.

[0037] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A puncture incision stapler, comprising a stapler body with a hollow interior and a push rod arranged inside the stapler body, characterized in that: A split flap is installed on the head of the stapler body, and a push mechanism connected to the flap is installed at the end of the push rod near the flap. The push rod moves inside the hollow stapler body and pushes the flap to split and close outside the end of the stapler body through the push mechanism. A lower through hole for the suture needle to pass through is provided on the petals, a rubber plug for clamping the suture is embedded in the lower through hole, a suture pressing block is installed on the inner wall of the suture device body, and when the petals are merged into the inner side of the head of the suture device body, the end of the suture pressing block acts on the inner side of the lower through hole to press the suture passing through the rubber plug.

2. A puncture incision stapler according to claim 1, characterized in that: A valve groove for accommodating the petals is provided on the head of the stapler body.

3. A puncture incision stapler according to claim 2, characterized in that: A spiral tube is embedded in the tail of the stapler body, and the push rod is inserted into the interior of the spiral tube.

4. A puncture incision stapler according to claim 3, characterized in that: The push rod includes a screw matched with the screw tube and a connecting rod matched with the pushing mechanism. The screw and the connecting rod are fixedly connected. The connecting rod is located inside the stapler body. The screw extends from the outside of the tail of the stapler body through the screw tube to the inside of the stapler body. A knob is installed at the end of the screw located outside the stapler body.

5. The puncture incision stapler according to claim 4, characterized in that: The pushing mechanism includes a prismatic rod movable inside the stapler body and a prismatic tube fixed in the inner cavity of the stapler body head, one end of the prismatic rod is inserted into the interior of the prismatic tube and the other end is movably connected to the end of the connecting rod through a bearing, and the prismatic tube, the prismatic rod, the connecting rod and the screw are located on the same straight line; The outer wall of the prism rod is provided with teeth connected with the petals.

6. The puncture incision stapler according to claim 5, characterized in that: A rotating shaft is installed at one end of the petal close to the screw rod, and the petal is movably connected to the inside of the petal groove through the rotating shaft. A fan-shaped gear is installed outside the rotating shaft of the petal, and the fan-shaped gear meshes with teeth on the outer wall of the prism rod.

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