Implant Deployment Device

Abstract

The present invention provides an implant deployment device capable of stably deploying an implant at a rupture site without performing an incision surgery, the implant deployment device comprising: a body part having a long shape in one direction and a space formed therein, a hollow needle having one end coupled to one end of the body part and the other end having a longitudinal slit formed to a predetermined length, a push rod having a long shape in one direction housed in the internal space of the body part so as to be movable forward in the direction of the needle and backward in the opposite direction to the needle, with a part housed in the hollow part of the needle and the other part housed inside the body part, a push part coupled to the push rod and having a slider including a locking claw and an accommodation groove, and a cam rod rotatable between a first position engaged with the locking claw and restricting the slider from moving backward and a second position in which the locking claw is released and the cam rod is inserted into the accommodation groove and allows the slider to move backward by a predetermined distance.

Description

[Technical Field]

[0001] The present invention relates to an implant deployment device, and more particularly to an implant deployment device for deploying an implant for suturing at the site of a knee cartilage (meniscus) rupture. [Background technology]

[0002] Arthroscopic surgery is becoming more commonplace for repairing ruptured cartilage (soft tissue). When the knee cartilage (meniscus) is ruptured, the affected area is finely incised or identified using an arthroscope, and then an implant with sutures is inserted into the ruptured area and fixed in place with sutures.

[0003] The implant is fixedly connected to a suture to close the lesion, and a cannular-type deployment device is used to deploy the implant into the lesion.

[0004] The implant deployment device further includes a cutter for suturing the lesion using a suture fixedly connected to the implant deployed at the lesion, and then cutting the suture while minimizing its length.

[0005] For example, the implant may be configured as a pair, and when an operator (surgeon) uses the implant deployment device to deploy the implant at the lesion site, it is important that the implant deployment device can stably deploy the implant while making a minimal incision. Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide an implant deployment device that can stably deploy an implant at a rupture site without performing an incision surgery. [Means for solving the problem]

[0007] The present invention provides a push rod having an elongated shape in one direction, the push rod being accommodated in the internal space of the body part so as to be movable forward in the direction of the needle and backward in the direction opposite to the needle, with a portion accommodated in the hollow portion of the needle and the remaining portion accommodated inside the body part; a push part having a slider coupled to the push rod and including a locking claw and an accommodation groove; and a first position that is locked by the locking claw and restricts the slider from moving backward. and a cam rod that rotates between a first position where the locking claw is released and the cam rod is inserted into the accommodation groove and allows the slider to move rearward a predetermined distance, wherein a first implant is placed at the other end of the needle and is deployed at the affected area by being pressed by the push rod as the push rod moves forward, and a second implant is placed at the other end of the needle, behind the first implant, with a lower part of the second implant supported by the push rod and an upper part of the second implant housed in the slit of the needle.

[0008] In one embodiment, the implant deployment device further comprises elastic pressure means for elastically applying pressure to the slider so that the slider moves rearward.

[0009] In addition, the implant deployment device may further include a push handle that is exposed to the outside of the body, penetrates the body, and is coupled to a slider to move together with the push part. The push handle may be moved forward or backward to move the push part.

[0010] The implant deployment device further includes a rotating lever, a portion of which is exposed to the outside of the body portion and a portion of which penetrates the body portion and is coupled to the cam rod so as to rotate the cam rod, and the cam rod can be rotated to a first position or a second position by rotating the rotating lever.

[0011] The implant deployment device may further include a length adjustment member coupled to the needle at one end of the body portion and movable in the length direction of the body portion.

[0012] The needle may be movable forward by the length adjustment member.

[0013] It is also preferable that the body portion and the length adjustment member are provided with a restricting means that allows the length adjustment member to move forward but restricts its movement backward.

[0014] In one embodiment, the limiting means comprises a first gear in the shape of a right-angled triangle formed on the body portion, and a second gear in the shape of a right-angled triangle formed on the length adjustment member and meshing with the first gear, and when the length adjustment member moves in the needle direction, the second gear is elastically deformed to allow the length adjustment member to move, and movement in the opposite direction is prevented by the second gear engaging with the first gear.

[0015] In one embodiment, the upper surface of the needle end of the push rod is flat, the lower surface of the second implant is flat, and the lower surface of the second implant can be supported on the upper surface of the end of the push rod. [Effects of the Invention]

[0016] The implant deployment device of the present invention has the advantage of being able to stably suture the ruptured site in a minimally invasive manner without the need for open surgery. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of an implant deployment device according to one embodiment of the present invention. [Figure 2] 2 is a cross-sectional view of the implant deployment device shown in FIG. 1. [Figure 3] 10A and 10B are diagrams for explaining the forward movement of the push portion. [Figure 4] 10 is a diagram for explaining that the cam rod rotates to a second position and the push portion moves rearward. FIG. [Figure 5] FIG. 10 is a view for explaining that the push portion moves forward to deploy the first implant. [Figure 6] FIG. 10 is a view for explaining that when the cam rod is rotated to the second position, the push portion moves backward and the second implant moves downward. [Figure 7] FIG. 10 is a view for explaining that when the cam rod is rotated to the second position, the push portion moves backward and the second implant moves downward. [Figure 8] FIG. 10 is a diagram showing the length adjustment member moved forward. DETAILED DESCRIPTION OF THE INVENTION

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings to provide specific details for carrying out the present invention.

[0019] When adding reference numerals to components in each drawing, the same reference numerals are used as much as possible for the same components even if they are shown in different drawings.

[0020] FIG. 1 is a perspective view of an implant deployment device according to one embodiment of the present invention; FIG. 2 is a cross-sectional view of the implant deployment device shown in FIG. 1; FIG. 3 is a diagram illustrating the forward movement of the push portion; FIG. 4 is a diagram illustrating the rearward movement of the push portion as the cam rod rotates to a second position; FIG. 5 is a diagram illustrating the forward movement of the push portion to deploy a first implant; FIGS. 6 and 7 are diagrams illustrating the rearward movement of the push portion as the cam rod rotates to a second position, causing the second implant to move downward; and FIG. 8 is a diagram showing the forward movement of the length adjustment member.

[0021] The implant deployment device according to this embodiment includes a body portion 10, a needle 20, a push portion 30, a push handle 40, an elastic pressure means 50, a cam rod 60, a rotating lever 70, a first implant 80, and a second implant 90.

[0022] As shown in FIG. 1, the body part 10 has a space formed therein that is elongated in one direction, and the space accommodates components such as the slider 31 of the push part 30, the elastic pressure means 50, and the cam rod 60.

[0023] The body portion 10 includes a length adjusting member 100 and a restricting means 110 .

[0024] The length adjusting member 100 is provided at one end of the body portion 10 and is movable forward of the body portion 10. Its rearward movement is restricted by restricting means 110, which will be described later.

[0025] The length adjustment member 100 is coupled to the needle 20, and the needle 20 is coupled to the body portion 10 via the length adjustment member 100.

[0026] FIG. 8 shows the length-adjusting member 100 moved forward, and as the length-adjusting member 100 moves forward, the needle 20 also moves, allowing the needle 20 to penetrate deeper into the skin.

[0027] The limiting means 110 is configured to allow the length adjusting member 100 to move forward but limit its movement backward, and may be regarded as a ratchet.

[0028] The restricting means 110 includes a first gear 111 and a second gear 112 .

[0029] The first gear 111 has a right-angled triangular gear-like configuration formed on the body portion 10, and the second gear 112 has a right-angled triangular gear-like configuration formed on the length adjustment member 100, but is shaped so as to be able to mesh with the first gear 111.

[0030] When the length adjustment member 100 moves forward, the portions of the length adjustment member 100 and the body portion 10 that come into contact with the length adjustment member 100 undergo elastic deformation, causing the second gear 112 to climb over the first gear 111 and moving the length adjustment member 100. This is because the second gear 112 is locked to the first gear 111, preventing the length adjustment member 100 from moving backward.

[0031] The needle 20 is elongated in one direction, with one end connected to one end of the body portion 10 and the other end penetrating into the skin to deploy the first implant 80 and the second implant 90, and a longitudinal slit 21 formed to a predetermined length at the other end penetrating into the skin.

[0032] The push portion 30 includes a push rod 31 and a slider 32 .

[0033] The push rod 31 is partially housed in the needle 20 and partially housed inside the body portion 10, and is configured to be long in one direction so that it can move forward toward the needle 20 and backward toward the needle 20. In Figure 2, the left side is the front and the right side is the rear.

[0034] The upper surface of the other end of the push rod 31 is flat as shown in FIGS.

[0035] The slider 32 is coupled to the push rod 31 and accommodated in a space formed inside the body part 10 to move forward or backward.

[0036] The push handle 40 has a handle exposed to the outside of the body part 10 and penetrates the body part 10 to be connected to the slider 32. The handle protrusion 41 of the push handle 40 is inserted into the handle groove 33 of the slider 32 to connect the two components.

[0037] The elastic pressure means 50 is configured to elastically pressurize the slider 32 so that it moves rearward, and as shown in the figure, a coil spring can be used.

[0038] The cam rod 60 rotates between a first position and a second position. The first position, as shown in FIG. 3, is a position where the cam rod 60 is engaged with the locking claw 321, restricting the slider 32 from moving backward. The second position, as shown in FIG. 4, is a position rotated 90 degrees from the first position, where the cam rod 60 is released from the locking claw 321 and inserted into the accommodating groove 322, allowing the slider 32 to move backward by a predetermined distance.

[0039] The rotating lever 70 is configured to be connected to the cam rod 60, and when the surgeon rotates the rotating lever 70, the cam rod 60 rotates together, and like the push handle 40, a portion of the rotating lever 70 is exposed to the outside of the body part 10, and a portion of the rotating lever 70 penetrates the body part 10 and is connected to the cam rod 60.

[0040] The first implant 80 is disposed at the other end of the needle 20, and when the push rod 31 moves forward, it is pressurized by the push rod 31 and deployed at the affected area.

[0041] The second implant 90 is disposed at the other end of the needle 20, but is positioned further rearward than the first implant 80. The lower surface of the second implant 90 is flat and supported on the upper surface of the push rod 31, and the upper surface is accommodated in the slit 21 of the needle 20.

[0042] Below, a method for deploying the first implant 80 and the second implant 90 using the above-described configuration will be described, and the functions, actions, and effects of each configuration will be explained.

[0043] First, the other end of the needle 20 is inserted into the skin near the torn tissue in the state shown in Fig. 1. Once the needle 20 is inserted, the first implant 80 and the second implant 90 are inserted together. Although not shown, the first implant 80 and the second implant 90 are fastened with a suture.

[0044] When the push handle 40 is pushed forward with the needle 20 inserted, the elastic pressure means 50 is elastically compressed, and when the slider 32 connected to the push handle 40 moves forward, the push rod 31 connected to the slider 32 moves together with the slider 32, pressurizing the first implant 80 forward. The first implant 80, pressurized by the push rod 32, moves forward (towards the affected area) and is implanted at the position desired by the surgeon. Figure 5 shows the state in which the first implant 80 has detached from the needle 20.

[0045] Once the first implant 80 has been implanted, the surgeon rotates the rotating lever 70 to rotate the cam rod 60 to the second position, and then removes the force applied to the push handle 40. This causes the push rod 31 and the slider 32 to move rearward due to the elastic pressure means 50. At this time, as the cam rod 60 is inserted into the receiving groove 322, the push rod 31 and the slider 32 move further rearward than when the cam rod 60 is locked in the receiving groove 322 (see FIG. 2) (see FIG. 4).

[0046] As shown in Fig. 4, when the push rod 31 and the slider 32 move rearward, the second implant 90 passes through the state shown in Fig. 6 and descends downward to the state shown in Fig. 7. The second implant 90 was supported by the push rod 31, but when the push rod 31 moves rearward, the second implant 90 moves due to gravity to the state shown in Fig. 7.

[0047] When the push handle 40 is pushed forward while the second implant 90 is moved downward as shown in FIG. 7, the push rod 31 and the slider 32 move forward, pushing the second implant 90 forward, and the second implant 90 moves and is implanted in the position desired by the surgeon. This operation is performed using the same mechanism as when the first implant 80 is implanted.

[0048] On the other hand, if the position where the first implant 80 or the second implant 90 is to be implanted is deep in the skin, by moving the length adjustment member 100 forward as shown in Figure 8, the needle 20 will also move forward, and the first implant 80 or the second implant 90 can be implanted deeper in the skin than in the state shown in Figure 1.

[0049] Once the first implant 80 and second implant 90 have been implanted, the sutures can be manipulated appropriately to reconnect the torn tissue.

[0050] The above description is merely an illustrative example of the technical concept of the present invention, and various modifications, changes, and substitutions may be made by a person having ordinary skill in the art to which the present invention pertains without departing from the essential characteristics of the present invention. Therefore, the embodiments and the accompanying drawings disclosed in the present invention are for explanation purposes only, and are not intended to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments and the accompanying drawings.

Claims

1. a body portion having a shape elongated in one direction and including a space formed therein; a hollow needle having one end connected to one end of the body portion and the other end having a longitudinal slit formed therein with a predetermined length; a push rod that is elongated in one direction and is accommodated in the internal space of the body portion so as to be movable forward in the direction of the needle and backward in the opposite direction to the needle, with a portion accommodated in the hollow portion of the needle and the remaining portion accommodated inside the body portion; and a push portion that is coupled to the push rod and includes a slider that includes a locking claw and an accommodation groove; a cam rod that rotates between a first position where the slider is engaged with the locking claw and restricts rearward movement, and a second position that is rotated a predetermined angle from the first position, where the locking claw is released and the slider is inserted into the accommodation groove, thereby allowing the slider to move rearward by a predetermined distance; a first implant is disposed at the other end of the needle and is compressed by the push rod as the push rod moves forward to be deployed at the affected area; a second implant is disposed at the other end of the needle, rearward of the first implant, a lower portion of the second implant is supported by a push rod, and an upper portion of the second implant is configured to be accommodated in a slit of the needle; Implant deployment device.

2. The implant deployment device according to claim 1 , further comprising elastic pressure means for elastically applying pressure to the slider so that the slider moves rearward.

3. 3. The implant deployment device according to claim 1, further comprising a push handle that is exposed to the outside of the body portion, that is coupled to a slider while passing through the body portion, and that moves together with the push portion, and the push portion moves when the push handle is moved forward or backward.

4. 3. The implant deployment device according to claim 1, further comprising a rotating lever, a portion of which is exposed to the outside of the body portion and a portion of which penetrates the body portion and is coupled to the cam rod so as to rotate the cam rod, and the cam rod is rotated to the first position or the second position by rotating the rotating lever.

5. 4. The implant deployment device of claim 3, further comprising a rotating lever, a portion of which is exposed to the outside of the body portion and a portion of which penetrates the body portion and is coupled to the cam rod so as to rotate the cam rod, and rotating the rotating lever rotates the cam rod to the first position or the second position.

6. a length adjusting member coupled to the needle at one end of the body portion and movable in the length direction of the body portion; The implant deployment device according to claim 1 or 2, wherein the needle is movable forward by the length adjustment member.

7. a length adjusting member coupled to the needle at one end of the body portion and movable in the length direction of the body portion; The implant deployment device of claim 3 , wherein the needle is movable forward by the length adjustment member.

8. 7. The implant deployment device according to claim 6, wherein the body portion and the length adjustment member are provided with a limiting means that allows the length adjustment member to move forward but limits its movement backward.

9. 8. The implant deployment device according to claim 7, wherein the body portion and the length adjustment member are provided with a limiting means that allows the length adjustment member to move forward but limits its movement backward.

10. The limiting means is a first gear in the shape of a right triangle gear formed on the body portion; a second gear in the shape of a right triangle gear formed on the length adjustment member and meshing with the first gear; Equipped with 9. The implant deployment device according to claim 8, wherein when the length adjustment member moves in the needle direction, the second gear is elastically deformed to allow the length adjustment member to move, and movement in the opposite direction is prevented by the second gear being engaged with the first gear.

11. The limiting means is a first gear in the shape of a right triangle gear formed on the body portion; a second gear in the shape of a right triangle gear formed on the length adjustment member and meshing with the first gear; Equipped with 10. The implant deployment device of claim 9, wherein when the length adjustment member moves in the needle direction, the second gear is elastically deformed to allow the length adjustment member to move, and movement in the opposite direction is prevented by the second gear being engaged with the first gear.

12. The implant deployment device of claim 1 or 2, wherein the upper surface of the needle end of the push rod is flat, the lower surface of the second implant is flat, and the lower surface of the second implant is supported on the upper surface of the end of the push rod.

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