Sacrospinous ligament suturing assembly

Abstract

The sacrospinous ligament suturing assembly comprises a main rod, a suturing head, an inserting needle, a reset spring and a transmission rope, the suturing head is connected to the far end of the main rod, a communicating cavity is formed in the main rod, and the communicating cavity penetrates through the far end of the main rod; a needle inserting cavity, a working cavity and a connecting cavity are formed in the sewing head, a notch is formed in the sewing head, one end of the needle inserting cavity penetrates through the notch, the other end of the needle inserting cavity is communicated with the working cavity, the reset spring is arranged in the working cavity, the inserting needle is inserted into the needle inserting cavity, and the tail end of the inserting needle extends into the working cavity and is connected with one end of the spring. The other end of the spring is connected with the bottom wall of the working cavity, one end of the connecting cavity is connected with the far end of the communicating cavity, the other end of the connecting cavity is communicated with the working cavity, the pin cavity is C-shaped, and the pin is also C-shaped, so that the pin can slide along the trend of the pin cavity; the far end of the transmission rope sequentially penetrates through the communicating cavity and the connecting cavity to enter the working cavity, and the far end of the transmission rope is connected with the tail end of the inserting needle. And foreign matters can be prevented from entering the body.

Description

Technical Field

[0001] The utility model belongs to the technical field of pelvic floor surgical instruments, and in particular relates to a sacrospinous ligament suture component. Background Art

[0002] Pelvic organ prolapse is a common disease in middle-aged and elderly women, and it has a tendency to continue to rise with the aging of the population. Currently, transvaginal sacrospinous ligament fixation is an important method for correcting mid-pelvic defects, which has the advantages of less trauma and definite effect.

[0003] The prior art CN201194820Y discloses a sacrospinous ligament suture device, which drives a fixed clamp head and a movable clamp head to approach each other by pulling a pull rod, so that the movable needle is inserted into the sacrospinous ligament, the needle head is locked on the needle locking plate, and the movable needle is passed through the tissue as a whole, and the thread at the tail of the movable needle is passed through the tissue together, thereby achieving the purpose of suturing.

[0004] In the prior art, after the movable needle passes through the tissue, the needle head of the movable needle may not be locked by the needle locking piece, and the movable needle will be stuck in the tissue, thereby posing a risk of foreign matter entering the body. Utility Model Content

[0005] In view of this, the utility model provides a sacrospinous ligament suture assembly, which can push the needle into the tissue by simply pulling the transmission rope, so that the thread passes through the tissue to achieve the purpose of suturing. The needle will not fall off during the process, and after loosening the transmission rope, the needle will automatically return to its original position driven by a reset spring to prevent foreign matter from entering the body.

[0006] The technical solution adopted by the utility model is:

[0007] A sacrospinous ligament suturing assembly comprises a main rod, a suturing head, an insertion needle, a reset spring and a transmission rope, wherein the suturing head is connected to the distal end of the main rod, and a connecting cavity extending along the axial direction of the main rod is provided inside the main rod, and the connecting cavity passes through the distal end of the main rod;

[0008] The suturing head is provided with a pin insertion cavity, a working cavity and a connecting cavity, the suturing head is provided with a notch, one end of the pin insertion cavity passes through the notch, and the other end of the pin insertion cavity is connected to the working cavity, the reset spring is arranged in the working cavity, the pin is inserted in the pin insertion cavity, the tail end of the pin extends into the working cavity, the tail end of the pin is connected to one end of the spring, the other end of the spring is connected to the bottom wall of the working cavity, one end of the connecting cavity is connected to the distal end of the connecting cavity, and the other end of the connecting cavity is connected to the working cavity, the pin insertion cavity is C-shaped, and the pin is also C-shaped, so that the pin can slide along the direction of the pin insertion cavity;

[0009] The distal end of the transmission rope passes through the communication cavity and the connection cavity in sequence and enters into the working cavity, and the distal end of the transmission rope is connected to the tail end of the insertion pin;

[0010] The suturing head is provided with a connection position, which is connected to the distal end of the main rod. With the connection position as a boundary, the suturing head is divided into a first sub-body and a second sub-body. The gap is formed between the first sub-body and the second sub-body. The working cavity is located in the second sub-body. The entire needle insertion cavity passes through the first sub-body, and a part of the needle insertion cavity is located in the second sub-body to communicate with the working cavity.

[0011] The insertion pin has a first position and a second position. In the absence of external force, the insertion pin is in the first position. When the transmission rope is pulled, the insertion pin is in the second position.

[0012] At the first station, the needle head of the insertion pin is located in the insertion pin cavity;

[0013] At the second working station, the needle head of the insertion pin extends out of the insertion pin cavity, and the needle head contacts the distal end of the second split body.

[0014] Preferably, in the circumferential direction of the suturing head, the length of the working cavity is greater than the length of the notch.

[0015] Preferably, the working cavity is arc-shaped, and the radial dimension of the working cavity is larger than the radial dimension of the pin cavity.

[0016] Preferably, the pin cavity cooperates with the pin; the connecting cavity has the same inner diameter as the communicating cavity and matches with the transmission rope.

[0017] Preferably, the distal end side of the second split body is indented inwardly to form a groove, and a silicone pad is embedded in the groove;

[0018] At the second station, the needle pierces the silicone pad.

[0019] Preferably, it further comprises a first handle and a second handle, wherein the first handle is fixedly connected to the proximal end of the main rod, the first handle is provided with a first rotating part, the second handle is provided with a second rotating part, and the first rotating part is rotatably connected to the second rotating part;

[0020] The proximal end of the transmission rope is directly or indirectly connected to the transmission part on the second handle;

[0021] When the second handle is pressed to make the transmission part swing toward the proximal end, the insertion pin gradually moves from the first station to the second station.

[0022] Preferably, the transmission part comprises a connecting groove provided on the second handle;

[0023] It also includes a transmission shaft, the proximal end of the transmission rope is connected to the distal end of the transmission shaft, the transmission shaft is inserted into the connecting cavity, the proximal end of the transmission shaft is connected to a slider, and the slider slides and is clamped in the connecting groove.

[0024] Preferably, the connecting cavity includes a large diameter section and a small diameter section connected to each other, the small diameter section is located at the distal end of the large diameter section, the inner diameter of the small diameter section matches the diameter of the transmission rope, the inner diameter of the large diameter section matches the diameter of the transmission shaft, the transmission shaft is inserted into the large diameter section, the transmission rope passes through the small diameter section and enters the connecting cavity, and the inner diameter of the connecting cavity is equal to the inner diameter of the small diameter section.

[0025] Preferably, the ratio of the length of the small diameter segment to the length of the large diameter segment is 1:(8-15).

[0026] Beneficial effects of the utility model:

[0027] In the utility model, initially, the insertion needle is in the first working position, at which time the entire insertion needle is in the insertion needle cavity and the working cavity, so that the tail end of the insertion needle moves toward the axial position, and then the insertion needle slides along the insertion needle cavity, so that the needle head extends out of the insertion needle cavity and enters the notch. Since the tissue is located at the notch and the needle head is pre-pinched with a thread head, the needle head will carry the thread head into the tissue. As the insertion needle continues to be pushed, the insertion needle pierces the tissue, and the needle head contacts the distal end of the second split body, thereby reaching the second working position. In this way, the thread head is also captured by the distal end of the second split body, and then the transmission rope is loosened. Since the tail end of the insertion needle is connected to the limit spring, the limit spring pulls the insertion needle to move in the opposite direction, so that the insertion needle re-enters the insertion needle cavity to the first working position, thereby achieving the purpose of suturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0029] Figure 1 This is a schematic diagram of the structure of the sacrospinous ligament suture assembly at the first working position;

[0030] Figure 2 This is a schematic diagram of the structure of the sacrospinous ligament suture assembly at the second working position;

[0031] Figure 3 It is a schematic diagram of the cooperation between the connecting groove and the slider.

[0032] In the figure: 1. main rod; 2. suture head; 3. transmission rope; 4. transmission shaft; 5. return spring; 6. insertion needle; 7. first handle; 8. second handle;

[0033] 11. Large diameter section;

[0034] 21. First body; 22. Second body; 23. Notch;

[0035] 41. Slider; 81. Connecting groove;

[0036] 221. Silicone pad; 222. Working chamber. DETAILED DESCRIPTION

[0037] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. In order to avoid confusing the essence of the present invention, known methods, processes, procedures, and components are not described in detail.

[0038] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0039] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0040] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0041] See also Figure 1-Figure 3 The utility model provides a sacrospinous ligament suture assembly for suturing the sacrospinous ligament (hereinafter referred to as "tissue"), comprising a main rod 1, a suture head 2, an insertion needle 6, a reset spring 5 and a transmission rope 3, wherein the suture head 2 is connected to the distal end of the main rod 1, and the main rod 1 is provided with a connecting cavity extending along its axial direction, and the connecting cavity passes through the distal end of the main rod 1.

[0042] The suture head 2 is provided with a pin insertion cavity, a working cavity 222 and a connecting cavity. The suture head 2 is provided with a notch 23. One end of the pin insertion cavity passes through the notch 23, and the other end of the pin insertion cavity is connected to the working cavity 222. The reset spring 5 is arranged in the working cavity 222. The pin 6 is inserted in the pin insertion cavity. The tail end of the pin 6 extends into the working cavity 222. The tail end of the pin 6 is connected to one end of the spring, and the other end of the spring is connected to the bottom wall of the working cavity 222. One end of the connecting cavity is connected to the distal end of the connecting cavity, and the other end of the connecting cavity is connected to the working cavity 222. The pin insertion cavity is C-shaped, and the pin 6 is also C-shaped, so that the pin 6 can slide along the direction of the pin insertion cavity.

[0043] The distal end of the transmission rope 3 passes through the communicating cavity and the connecting cavity in sequence and enters into the working cavity 222 , and the distal end of the transmission rope 3 is connected to the tail end of the insertion pin 6 .

[0044] The suture head 2 is provided with a connection position, which is connected to the distal end of the main rod 1. With the connection position as the boundary, the suture head 2 is divided into a first sub-body 21 and a second sub-body 22. The notch 23 is formed between the first sub-body 21 and the second sub-body 22. The working cavity 222 is located in the second sub-body 22. The needle insertion cavity passes through the first sub-body 21 as a whole, and a part of the needle insertion cavity is located in the second sub-body 22 to communicate with the working cavity 222.

[0045] The insertion pin 6 has a first position and a second position. In the absence of external force, the insertion pin 6 is in the first position. When the transmission rope 3 is pulled, the insertion pin 6 is in the second position.

[0046] At the first station, the needle head of the insertion pin 6 is located in the insertion pin cavity.

[0047] At the second working station, the needle head of the insertion pin 6 extends out of the insertion pin cavity, and the needle head contacts the distal end of the second split body 22 .

[0048] For the convenience of description, the main rod 1 is horizontally arranged as an example for explanation, with its distal end facing forward and its proximal end facing backward. The suture head 2 is connected to the front end of the main rod 1, and the connecting cavity extends in the front-to-back direction in the main rod 1, and the front end of the connecting cavity passes through the front end of the main rod 1, and the rear end of the connecting cavity passes through the rear end of the main rod 1; the suture head 2 is C-shaped as a whole, so that a notch 23 is formed on the suture head 2. During surgery, the main rod 1 is moved to make the suture head 2 close to the tissue and make the tissue located in the notch 23; the second part A working cavity 222 is provided in the body 22, and a needle cavity is provided in the suture head 2. The needle cavity runs through both ends of the entire first sub-body 21, and the needle cavity also passes through the second sub-body 22 and is connected to the working cavity 222. The direction of the needle cavity is consistent with the direction of the first sub-body 21 (the axes of the two are basically overlapped). The insertion needle 6 is inserted into the insertion needle cavity, and the direction of the insertion needle 6 is consistent with the insertion needle cavity, so the insertion needle 6 can move along the insertion needle cavity, and the tail end of the insertion needle 6 is connected to the reset spring 5 in the working cavity 222, as shown in FIG. Figure 1 In the embodiment shown, the return spring 5 has a clockwise pulling force on the insertion pin 6, so that the insertion pin 6 has a tendency to move clockwise, so that the insertion pin 6 is in the first position. When the transmission rope 3 is pulled later, the transmission rope 3 pulls the tail end of the insertion pin 6. Since the insertion pin 6 is restricted by the insertion pin cavity, the insertion pin 6 can only move counterclockwise, so that the needle tip extends out of the insertion pin cavity and enters the notch 23. Since the tissue is located at the notch 23, the needle tip carries the thread end into the tissue and passes through the tissue, so that the insertion pin 6 reaches the second position, and the thread end is captured by the distal end of the second split body 22. Then the transmission rope 3 is released, and the insertion pin 6 moves clockwise under the pull of the limit spring, so that the insertion pin 6 re-enters the insertion pin cavity to the first position.

[0049] The needle cavity is curved as a whole, and the needle 6 is also curved, and the curvature of the two is basically consistent with the curvature of the suture head 2. The needle cavity basically matches the needle 6, so that when the needle 6 reaches the second state, the needle head of the needle 6 can be inserted into the distal end of the second body 22, and ensure that the needle 6 can pass through the tissue.

[0050] No matter in the first station or the second station, a part of the insertion pin 6 is always in the insertion pin cavity, so the insertion pin 6 never leaves the insertion pin cavity, thereby solving the problem of foreign matter entering the body.

[0051] In the circumferential direction of the suturing head 2, the length of the working cavity 222 is greater than the length of the notch 23. In the first and second workstations, the tail end of the insertion needle 6 is always located in the working cavity 222, so the length of the working cavity 222 is greater than the length of the notch 23, so that in the second workstation, the tail end of the insertion needle 6 can also be located in the working cavity 222.

[0052] The working cavity 222 is arc-shaped, and the radial dimension of the working cavity 222 is larger than the radial dimension of the pin cavity, so that the reset spring 5 can be conveniently arranged in the working cavity 222 .

[0053] The pin cavity cooperates with the pin 6 ; the connecting cavity has the same inner diameter as the communicating cavity and matches the transmission rope 3 .

[0054] The distal end of the second split body 22 is sunken inward to form a groove, and a silicone pad 221 is embedded in the groove.

[0055] At the second station, the needle pierces the silicone pad 221 .

[0056] After the insertion needle 6 passes through the tissue, the needle head of the insertion needle 6 is inserted into the silicone pad 221, so that the thread end is stuck in the silicone pad 221, and the thread end is captured by the second split body 22, thereby achieving the purpose of suturing.

[0057] The sacrospinous ligament suture assembly also includes a first handle 7 and a second handle 8. The first handle 7 is fixedly connected to the proximal end of the main rod 1. The first handle 7 is provided with a first rotating part, and the second handle 8 is provided with a second rotating part. The first rotating part is rotatably connected to the second rotating part.

[0058] The proximal end of the transmission rope 3 is directly or indirectly connected to the transmission part on the second handle 8 .

[0059] When the second handle 8 is pressed to make the transmission part swing toward the proximal end, the insertion pin 6 gradually moves from the first station to the second station.

[0060] The second handle 8 is pressed to make the transmission part swing backward, thereby driving the transmission rope 3 to transmit backward, so that the insertion pin 6 can be switched from the first position to the second position.

[0061] In addition, the transmission rope 3 may be a metal wire, so that the transmission rope 3 has a certain flexibility, so that the transmission rope 3 can move along the curved connecting cavity.

[0062] The transmission part includes a connecting groove 81 arranged on the second handle 8 .

[0063] It also includes a transmission shaft 4, the proximal end of the transmission rope 3 is connected to the distal end of the transmission shaft 4, the transmission shaft 4 is inserted into the connecting cavity, and the proximal end of the transmission shaft 4 is connected to a slider 41, and the slider 41 slides and is clamped in the connecting groove 81.

[0064] A slider 41 is connected to the rear end of the transmission shaft 4. The height of the slider 41 remains unchanged. The connecting groove 81 has a certain length. When the second handle 8 is rotated, the connecting groove 81 will pull the slider 41, causing the slider 41 to slide relative to the connecting groove 81 and displace the slider 41 in the front-to-back direction, thereby allowing the transmission shaft 4 to move in the front-to-back direction and causing the transmission rope 3 to move in the front-to-back direction.

[0065] The connecting cavity includes a large diameter section 11 and a small diameter section which are connected to each other. The small diameter section is located at the distal end of the large diameter section 11. The inner diameter of the small diameter section matches the diameter of the transmission rope 3. The inner diameter of the large diameter section 11 matches the diameter of the transmission shaft 4. The transmission shaft 4 is inserted into the large diameter section 11. The transmission rope 3 passes through the small diameter section and enters the connecting cavity. The inner diameter of the connecting cavity is equal to the inner diameter of the small diameter section.

[0066] The small diameter section is in front and the large diameter section 11 is in the back. The diameter of the transmission shaft 4 is larger than the diameter of the transmission rope 3. The transmission shaft 4 is in the shape of a long roller and cannot be bent. The setting of the transmission shaft 4 can reduce the length of the transmission rope 3 and improve the reliability of the sacrospinous ligament suture assembly. The setting of the large diameter section 11 allows the transmission shaft 4 to move in the front and rear directions.

[0067] The ratio of the length of the small diameter section to the length of the large diameter section 11 is 1:(8-15), which can minimize the length of the transmission rope 3 and improve the reliability of the sacrospinous ligament suture assembly.

[0068] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the scope of the claims of the present invention.

Claims

1. A sacrospinous ligament suture assembly, characterized in that: It comprises a main rod, a suturing head, an insertion needle, a reset spring and a transmission rope, wherein the suturing head is connected to the distal end of the main rod, and a connecting cavity extending along the axial direction of the main rod is provided inside the main rod, and the connecting cavity passes through the distal end of the main rod; The suturing head is provided with a pin insertion cavity, a working cavity and a connecting cavity, the suturing head is provided with a notch, one end of the pin insertion cavity passes through the notch, and the other end of the pin insertion cavity is connected to the working cavity, the reset spring is arranged in the working cavity, the pin is inserted in the pin insertion cavity, the tail end of the pin extends into the working cavity, the tail end of the pin is connected to one end of the spring, the other end of the spring is connected to the bottom wall of the working cavity, one end of the connecting cavity is connected to the distal end of the connecting cavity, and the other end of the connecting cavity is connected to the working cavity, the pin insertion cavity is C-shaped, and the pin is also C-shaped, so that the pin can slide along the direction of the pin insertion cavity; The distal end of the transmission rope passes through the communication cavity and the connection cavity in sequence and enters into the working cavity, and the distal end of the transmission rope is connected to the tail end of the insertion pin; The suturing head is provided with a connection position, which is connected to the distal end of the main rod. With the connection position as a boundary, the suturing head is divided into a first sub-body and a second sub-body. The gap is formed between the first sub-body and the second sub-body. The working cavity is located in the second sub-body. The entire needle insertion cavity passes through the first sub-body, and a part of the needle insertion cavity is located in the second sub-body to communicate with the working cavity. The insertion pin has a first position and a second position. In the absence of external force, the insertion pin is in the first position. When the transmission rope is pulled, the insertion pin is in the second position. At the first station, the needle head of the insertion pin is located in the insertion pin cavity; At the second working station, the needle head of the insertion pin extends out of the insertion pin cavity, and the needle head contacts the distal end of the second split body.

2. The sacrospinous ligament suture assembly according to claim 1, characterized in that: In the circumferential direction of the suturing head, the length of the working cavity is greater than the length of the notch.

3. The sacrospinous ligament suture assembly according to claim 1, characterized in that: The working cavity is arc-shaped, and the radial dimension of the working cavity is larger than the radial dimension of the pin cavity.

4. The sacrospinous ligament suture assembly according to any one of claims 1 to 3, characterized in that: The pin cavity cooperates with the pin; the connecting cavity has the same inner diameter as the communicating cavity and matches with the transmission rope.

5. The sacrospinous ligament suture assembly according to claim 1, characterized in that: The distal end of the second split body is indented inwardly to form a groove, and a silicone pad is embedded in the groove; At the second station, the needle pierces the silicone pad.

6. The sacrospinous ligament suture assembly according to any one of claims 1 to 3 or 5, characterized in that: The main rod further comprises a first handle and a second handle, wherein the first handle is fixedly connected to the proximal end of the main rod, the first handle is provided with a first rotating part, the second handle is provided with a second rotating part, and the first rotating part is rotatably connected to the second rotating part; The proximal end of the transmission rope is directly or indirectly connected to the transmission part on the second handle; When the second handle is pressed to make the transmission part swing toward the proximal end, the insertion pin gradually moves from the first station to the second station.

7. The sacrospinous ligament suture assembly according to claim 6, characterized in that: The transmission part includes a connecting groove arranged on the second handle; It also includes a transmission shaft, the proximal end of the transmission rope is connected to the distal end of the transmission shaft, the transmission shaft is inserted into the connecting cavity, the proximal end of the transmission shaft is connected to a slider, and the slider slides and is clamped in the connecting groove.

8. The sacrospinous ligament suture assembly according to claim 7, characterized in that: The connecting cavity includes a large diameter section and a small diameter section connected to each other, the small diameter section is located at the distal end of the large diameter section, the inner diameter of the small diameter section matches the diameter of the transmission rope, the inner diameter of the large diameter section matches the diameter of the transmission shaft, the transmission shaft is inserted into the large diameter section, the transmission rope passes through the small diameter section and enters the connecting cavity, and the inner diameter of the connecting cavity is equal to the inner diameter of the small diameter section.

9. The sacrospinous ligament suture assembly according to claim 8, characterized in that: The length ratio of the small diameter section to the large diameter section is between 1:8 and 1-15.

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