Uterine cavity puncture line hanging device

Abstract

The utility model relates to the technical field of medical auxiliary instruments, in particular to a uterine cavity puncture thread hanging device which is characterized by comprising an outer sheath and a puncture needle, a cavity penetrating through the two ends of the outer sheath is formed in the outer sheath, and a limiting piece capable of adjusting the position in the length direction of the puncture needle is arranged on the puncture needle. One end of a needle point of the puncture needle can penetrate in from one end of the cavity and penetrate out from the other end of the cavity until the limiting piece abuts against the outer side of one end of the outer sheath, a needle hole allowing one end of the fixing line to penetrate through is formed in the needle point of the puncture needle, and a line knot is arranged at the other end of the fixing line. One end of the line knot of the fixing line is fixed in the muscular layer at the bottom of the uterine cavity in a puncturing mode, the contraceptive ring or the medicine ring is bound and fixed in the uterine cavity through the fixing line so as to prevent the contraceptive ring or the medicine ring from falling off, and meanwhile the bearing capacity of the fixing line can be conveniently adjusted by adjusting the size of the line knot. And the preset puncture depth of the puncture needle penetrating into the muscular layer at the bottom of the uterine cavity can be conveniently adjusted, so that the puncture depth of the puncture needle can be better controlled and grasped.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to a uterine puncture and suture device. Background Technology

[0002] Currently, for some women of childbearing age who use intrauterine devices (IUDs) for contraception or require intrauterine medicated IUDs for treatment, the large volume of the uterine cavity makes it easy for the IUD to shift downwards or fall out after placement, thus failing to achieve the corresponding contraceptive or therapeutic effect. Furthermore, the existing fixation methods have limited load-bearing capacity, which can easily lead to the IUD falling out. Therefore, a quick and convenient fixation method is needed to effectively secure the IUD or medicated IUD and prevent it from shifting downwards or falling out after placement. In view of this, this problem has been studied in depth, hence the emergence of this case. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a uterine cavity puncture and hanging device that facilitates the puncture and fixing of one end of the fixing line into the myometrium at the bottom of the uterine cavity, thereby binding and fixing the IUD or drug-eluting ring to the uterine cavity to prevent the IUD or drug-eluting ring from falling out. At the same time, it is easy to adjust the load-bearing capacity of the fixing line by adjusting the size of the knot, and it is also easy to adjust the preset puncture depth of the puncture needle into the myometrium at the bottom of the uterine cavity, so as to better control and grasp the puncture depth of the puncture needle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a uterine puncture suture device, including an outer sheath and a puncture needle, the outer sheath having a cavity extending through both ends therein, the puncture needle having a limiting member that can be adjusted in position along the length of the puncture needle, one end of the puncture needle tip can be inserted into one end of the cavity and exited from the other end until the limiting member abuts against the outer side of one end of the outer sheath, the puncture needle tip having a needle hole for one end of the fixing suture to pass through, the other end of the fixing suture having a knot, the outer diameter of the knot being larger than the inner diameter of the needle hole.

[0005] Furthermore, a first scale line is provided on the outer circumference of the outer sheath along its length.

[0006] Furthermore, a second graduation line is provided on the outer circumference of the puncture needle along its length.

[0007] Furthermore, the limiting element is a limiting elastic block, the outer diameter of which is larger than the inner diameter of the cavity. The limiting elastic block has an elastic hole that is compatible with the puncture needle, and the limiting elastic block is sleeved on the puncture needle through the elastic hole.

[0008] Furthermore, the limiting elastic block is a rubber block or a silicone block.

[0009] Furthermore, the limiting component is a limiting knob, the outer diameter of which is larger than the inner diameter of the cavity. The limiting knob has a threaded hole, and the outer circumferential surface of the puncture needle has an external thread section. The limiting knob is threadedly connected to the external thread section of the puncture needle through the threaded hole.

[0010] Furthermore, the inner diameter of the cavity is 1.1-1.3 times the outer diameter of the puncture needle.

[0011] Furthermore, a handle is fixedly provided at one end of the puncture needle.

[0012] As described above, the intrauterine puncture suture device provided by this utility model has the following beneficial effects: During use, by passing one end of the suture through the needle hole and having the knot of the other end of the suture abut against the side of the needle hole of the puncture needle, the stability of the connection between the suture and the puncture needle is effectively ensured. During the puncture process, the suture will not detach from the puncture needle. Thus, the suture can follow the puncture needle through the cavity of the outer sheath, and the knot of the suture can follow the needle tip into the myometrium at the bottom of the uterine cavity. Inside, after the puncture needle is removed, one end of the suture knot is stably fixed at the bottom of the uterine cavity, thus achieving stable suture placement at the bottom of the uterine cavity. Then, after the IUD or medicated ring is inserted, it can be secured to the uterine cavity using the suture, effectively fixing the IUD or medicated ring and preventing it from falling out. This effectively solves the problem of IUD displacement or expulsion in some women with larger uterine cavities, ensuring the effectiveness of contraception. Or treatment effect; by setting an adjustable limiting element, the limiting element can play a corresponding limiting role in the insertion of the puncture needle. By adjusting the corresponding position of the limiting element on the puncture needle, it is convenient to adjust the preset puncture depth of the puncture needle into the myometrium at the bottom of the uterine cavity, so as to better control and grasp the puncture depth of the puncture needle and better ensure the suspension effect of the fixation line. In addition, after the tip of the puncture needle drives the knot of the fixation line into the myometrium at the bottom of the uterine cavity, the puncture needle can smoothly withdraw along the fixation line and from the other end of the fixation line. The fast and convenient design, utilizing the needle hole, allows for better adaptation to fixing sutures of varying thicknesses and knot sizes. A larger knot diameter results in greater load-bearing capacity, and adjusting the knot size allows for adjustments to the suture's load-bearing capacity. This facilitates the selection of different sutures to fit various IUDs or medicated IUDs, enabling more flexible control over the puncture effect. Furthermore, using larger knot diameters provides better suspension, making it less likely for the knot to detach from the bottom of the uterine cavity, thus better securing the IUD or medicated IUD within the uterine cavity. Attached Figure Description

[0013] Figure 1This is a three-dimensional structural diagram of a uterine puncture and suture device according to Embodiment 1 of this utility model.

[0014] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0015] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle.

[0016] Figure 4 This is a three-dimensional structural diagram of a uterine puncture and suture device according to Embodiment 2 of this utility model.

[0017] Figure 5 for Figure 4 A magnified view of a portion of point C.

[0018] In the diagram: 1-outer sheath; 11-first graduation line; 2-puncture needle; 21-needle hole; 22-second graduation line; 3-limiting component; 4-fixing line; 41-knot; 5-handle. Detailed Implementation

[0019] The present invention will be further described below through specific embodiments.

[0020] Example 1

[0021] like Figures 1 to 3 As shown, the hysteroscopic puncture and suture device of this utility model includes an outer sheath 1 and a puncture needle 2. The outer sheath 1 has a cavity extending through both ends. The puncture needle 2 is provided with a limiting member 3 that can be adjusted in position along the length of the puncture needle 2. One end of the needle tip of the puncture needle 2 can be inserted into one end of the cavity and exited from the other end until the limiting member 3 abuts against the outer side of one end of the outer sheath 1. The needle tip of the puncture needle 2 is provided with a needle hole 21 for one end of the fixing line 4 to pass through. The other end of the fixing line 4 is provided with a knot 41. The outer diameter of the knot 41 is larger than the inner diameter of the needle hole 21.

[0022] In use, by passing one end of the fixing line 4 through the needle hole 21 and having the other end of the fixing line 4 (knot 41) abut against one side of the needle hole 21 of the puncture needle 2, the stability of the connection between the fixing line 4 and the puncture needle 2 is effectively ensured. During insertion and puncture, the fixing line 4 will not detach from the puncture needle 2. Thus, the fixing line 4 can follow the puncture needle 2 through the cavity of the outer sheath 1, and the knot 41 of the fixing line 4 can follow the needle tip of the puncture needle 2 into the myometrium at the bottom of the uterine cavity. After the puncture needle 2 is removed, one end of the knot 41 of the fixing line 4 is stably fixed at the bottom of the uterine cavity, thereby achieving stable hanging of the fixing line 4 at the bottom of the uterine cavity. Then, when the IUD or medication... After the IUD is placed, it can be secured to the uterine cavity via the fixing line 4 to prevent it from falling out. This effectively solves the problem of displacement or dislodgement of the IUD or medicated ring in some women with larger uterine cavities, ensuring the effectiveness of contraception or treatment. The adjustable positioning element 3 limits the insertion of the puncture needle 2. By adjusting the position of the positioning element 3 on the puncture needle 2, the preset puncture depth of the puncture needle 2 into the uterine cavity floor muscle layer can be adjusted, allowing for better control and ensuring the suspension effect of the fixing line 4.

[0023] Furthermore, after the tip of the puncture needle 2 drives the knot 41 of the fixation line 4 to puncture into the myometrium at the bottom of the uterine cavity, the puncture needle 2 can smoothly withdraw along the fixation line 4 and from the other end of the fixation line 4. The operation is quick and convenient. The design of the needle hole 21 can better adapt to fixation lines 4 of different thicknesses and to fixation lines 4 with knots 41 of different outer diameters. The larger the outer diameter of the knot 41, the greater its load-bearing capacity. By adjusting the size of the knot 41, the load-bearing capacity of the fixation line 4 can be adjusted, making it easier to select different fixation lines 4 to match different IUDs or drug-eluting IUDs. This allows for more flexible control of the puncture effect. Moreover, using a larger outer diameter knot 41 for fixation results in a better suspension effect, making it less likely for the knot 41 of the fixation line 4 to detach from the bottom of the uterine cavity, thus better binding and fixing the IUD or drug-eluting IUD in the uterine cavity.

[0024] The outer sheath 1 has a first scale line 11 along its length on its outer peripheral surface, which facilitates the measurement of the uterine cavity depth.

[0025] The puncture needle 2 has a second scale line 22 along its length on its outer peripheral surface, which makes it easier to better grasp the depth of insertion into the uterine cavity muscle layer.

[0026] The limiting member 3 is a limiting elastic block. The outer diameter of the limiting elastic block is larger than the inner diameter of the cavity. The limiting elastic block has an elastic hole that is adapted to the puncture needle 2. The limiting elastic block is sleeved on the puncture needle 2 through the elastic hole. By utilizing the elastic compression of the limiting elastic block, the limiting elastic block can be stably positioned at the corresponding limiting position on the puncture needle 2. At the same time, it is convenient to move the limiting elastic block on the puncture needle 2 to adjust the corresponding limiting position of the limiting elastic block on the puncture needle 2. Preferably, the limiting elastic block is a rubber block or a silicone block.

[0027] Preferably, the inner diameter of the cavity is 1.1-1.3 times the outer diameter of the puncture needle 2.

[0028] The puncture needle 2 has a handle 5 fixedly provided at one end of the needle tail, which makes it easy to hold the handle 5 for operation and better control of the puncture force.

[0029] Example 2

[0030] like Figure 4 and Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the limiting member 3 is a limiting knob, the outer diameter of the limiting knob is larger than the inner diameter of the cavity, the limiting knob has a threaded hole, and the outer circumferential surface of the puncture needle 2 is provided with an external thread section. The limiting knob is threadedly connected to the external thread section of the puncture needle 2 through the threaded hole. In this way, it is convenient to adjust the corresponding limiting position of the limiting knob on the puncture needle 2 by rotating the limiting knob.

[0031] Other technical features are the same as in Embodiment 1.

[0032] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A hysteroscopic puncture and suture device, characterized in that: The application relates to a puncture needle and sheath, which comprises a sheath and a puncture needle, wherein a cavity is arranged in the sheath and extends through both ends of the sheath; a limiting part is arranged on the puncture needle and can be adjusted in the length direction of the puncture needle; the needle tip of the puncture needle can be inserted into one end of the cavity and can be taken out from the other end of the cavity until the limiting part abuts against the outside of one end of the sheath; a needle hole is arranged on the needle tip of the puncture needle and is used for allowing one end of a fixing wire to pass through; and the other end of the fixing wire is provided with a knot, and the outer diameter of the knot is larger than the inner diameter of the needle hole.

2. The hysteroscopy tenaculum device of claim 1, wherein: A first scale line is arranged on the outer circumferential surface of the sheath along the length direction of the sheath.

3. The hysteroscopy lasso device according to claim 1, wherein: A second scale line is arranged on the outer circumferential surface of the puncture needle along the length direction of the puncture needle.

4. The hysteroscopy lasso device according to claim 1, wherein: The limiting part is a limiting elastic block, the outer diameter of the limiting elastic block is larger than the inner diameter of the cavity, an elastic hole matched with the puncture needle is arranged in the limiting elastic block, and the limiting elastic block is sleeved on the puncture needle through the elastic hole.

5. The hysteroscopy lasso device according to claim 4, wherein: The limiting elastic block is a rubber block or a silica gel block.

6. The hysteroscopy lasso device according to claim 1, wherein: The limiting part is a limiting knob, the outer diameter of the limiting knob is larger than the inner diameter of the cavity, a threaded hole is arranged in the limiting knob, an outer thread section is arranged on the outer circumferential surface of the puncture needle, and the limiting knob is threadedly connected to the outer thread section of the puncture needle through the threaded hole.

7. The hysteroscopy lasso device according to claim 1, wherein: The inner diameter of the cavity is 1.1-1.3 times of the outer diameter of the puncture needle.

8. The hysteroscopy lasso device according to claim 1, wherein: The needle tail of the puncture needle is fixedly provided with a handle.

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