Uterine cavity puncture line hanging assembly

Abstract

The invention relates to the technical field of medical auxiliary instruments, in particular to a uterine cavity puncture line hanging assembly which is characterized in that the uterine cavity puncture line hanging assembly comprises a puncture needle, an inner needle and a fixing line, the puncture needle is used for penetrating out of a uterine serous membrane layer from a uterine cavity, a cavity penetrating through the two ends of the puncture needle is formed in the puncture needle, and the fixing line is arranged in the cavity in a penetrating mode; the fixing line comprises a transverse line knot and a line body fixedly connected to the middle of the transverse line knot, the transverse line knot is perpendicular to the line body, a push head is arranged at one end of the inner needle, and the inner needle is used for being inserted into the cavity of the puncture needle and pushing the transverse line knot of the fixing line out of the cavity through the push head so that the transverse line knot can stretch and be fixed outside the uterine serosal layer. The fixing line can be fixed to the uterus and cannot fall off, the bearing capacity is high, fixation is firm, puncture operation is easy and convenient, and the effect of fixing the contraceptive ring or the medicine ring is achieved by knotting and fixing the fixing line and the tail wire of the contraceptive ring or the medicine ring.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary instruments, and in particular to a uterine puncture hanging thread assembly. Background Art

[0002] At present, some women of childbearing age use contraceptive rings for contraception or need to place intrauterine drug rings for treatment. Due to the large volume of the uterine cavity, the contraceptive ring or drug ring is prone to move downward or fall off after placement, and cannot achieve the corresponding contraceptive or therapeutic effect. The current methods of fixing contraceptive rings are mainly through hysteroscopic suturing, Gilman combination and anchoring. Hysteroscopic suturing is firm, but the failure rate is high and the operation is complicated. Gilman combination and anchoring fix the knot to the uterine muscle layer, which is prone to fall off. Therefore, a simple and reliable fixing method is needed to effectively fix the contraceptive ring or drug ring to avoid downward movement or fall off after placement. In view of this, this issue has been studied in depth, resulting in the present case. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a uterine puncture hanging line assembly that can fix the fixing line on the uterus and prevent it from falling off, has strong load-bearing capacity, is firmly fixed, and is easy to operate. The fixing line is knotted and fixed with the tail wire of the contraceptive ring or drug ring, thereby fixing the contraceptive ring or drug ring.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a uterine cavity puncture hanging wire assembly, including a puncture needle, an inner needle and a fixed wire, the puncture needle is used to penetrate from the uterine cavity to the outside of the uterine serosal layer, the puncture needle is provided with a cavity running through both ends thereof, the fixed wire is passed through the cavity, the fixed wire includes a horizontal wire knot and a wire body fixedly connected to the middle of the horizontal wire knot, the horizontal wire knot is arranged perpendicular to the wire body, one end of the inner needle is provided with a pusher head, the inner needle is used to be inserted into the cavity of the puncture needle and the horizontal wire knot of the fixed wire is pushed out of the cavity by the pusher head so that the horizontal wire knot is stretched and fixed outside the uterine serosal layer.

[0005] Furthermore, the push head is in a V-shape that is wide outside and narrow inside.

[0006] Furthermore, the length of the horizontal knot is 5-8 mm, and the length of the line body is 27-33 cm.

[0007] Furthermore, the length of the puncture needle is 23-27 cm, the outer diameter of the puncture needle is 1.4-1.6 mm, the inner diameter of the cavity of the puncture needle is 0.9-1.1 mm, the length of the inner needle is 27-33 cm, and the outer diameter of the inner needle is 0.4-0.6 mm.

[0008] Furthermore, scale lines are provided on the outer peripheral surface of the puncture needle along its length direction.

[0009] Furthermore, a grip portion is provided at one end of the needle tail of the puncture needle.

[0010] Furthermore, the puncture needle is provided with a limiting member that can adjust its position along its length direction.

[0011] Furthermore, the limiting member is a limiting elastic block, the outer diameter of the elastic limiting block is larger than the outer diameter of the puncture needle, an elastic hole adapted to the puncture needle is provided in the limiting elastic block, and the limiting elastic block is sleeved on the puncture needle through the elastic hole.

[0012] Furthermore, the limiting member is a limiting knob, the outer diameter of the limiting knob is larger than the outer diameter of the puncture needle, a threaded hole is provided in the limiting knob, an external threaded section is provided on the outer peripheral surface of the puncture needle, and the limiting knob is threadedly connected to the external threaded section of the puncture needle through the threaded hole.

[0013] Furthermore, the puncture needle and the inner needle are both arc-shaped and fit together.

[0014] As can be seen from the above description, the uterine puncture hanging wire assembly provided by the present invention has the following beneficial effects: when in use, under the guidance of B-ultrasound, the puncture needle with a fixed wire is passed through the uterine cavity and out of the uterine serosal layer, and the horizontal wire knot of the fixed wire passed through the cavity of the puncture needle is in the length direction parallel to the puncture needle due to the squeezing of the space inside the puncture needle, and then the horizontal wire knot at the front end of the fixed wire in the uterine cavity of the puncture needle is completely pushed out through the inner needle. After being pushed out, the horizontal wire knot can be extended to a direction perpendicular to the puncture needle. When the puncture needle is withdrawn, the puncture needle is pulled out. Finally, because the horizontal knot at the front end of the fixing line is perpendicular to the puncture hole on the uterus, the fixing line can be fixed on the uterus and will not fall off, and it has strong load-bearing capacity and is firmly fixed. By adopting a puncture needle with a fine needle structure, the puncture operation is simple, only requires B-ultrasound guidance, no hysteroscopy assistance, and no anesthesia. Therefore, the contraceptive ring or drug ring tail wire can be placed into the fundus of the uterus along the fixing line, and the fixing line is tied with the contraceptive ring or drug ring tail wire to fix it, thereby fixing the contraceptive ring or drug ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the intrauterine puncture seton assembly in Example 1 of the present invention.

[0016] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0017] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle.

[0018] Figure 4 Schematic diagram of the hanging wire of the intrauterine puncture hanging wire assembly in embodiment 1 of the present invention.

[0019] Figure 5This is a schematic structural diagram of the intrauterine puncture seton assembly in Example 2 of the present invention.

[0020] Figure 6 This is a schematic diagram of the structure of the inner needle of the puncture injection in Example 3 of the present invention.

[0021] Figure 7 This is a schematic diagram of the hanging wire of the intrauterine puncture hanging wire assembly in embodiment three of the present invention.

[0022] In the figure: 1-puncture needle; 11-cavity; 12-scale line; 13-grip; 2-inner needle; 21-push head; 3-fixing line; 31-line body; 32-horizontal line knot; 41-limiting elastic block; 42-limiting knob; 51-uterine cavity; 52-uterine fundus; 53-anterior wall. DETAILED DESCRIPTION

[0023] The present invention is further described below through specific embodiments.

[0024] Example 1

[0025] like Figures 1 to 4 As shown, the intrauterine puncture hanging wire assembly described in the present invention includes a puncture needle 1, an inner needle 2 and a fixed wire 3. The puncture needle 1 is used to penetrate the uterine cavity 51 and out of the uterine serosa layer. The puncture needle 1 is provided with a cavity 11 running through both ends thereof. The fixed wire 3 is passed through the cavity 11. The fixed wire 3 includes a horizontal wire knot 32 and a wire body 31 fixedly connected to the middle of the horizontal wire knot 32. The horizontal wire knot 32 is arranged perpendicular to the wire body 31. A pusher head 21 is provided at one end of the inner needle 2. The inner needle 2 is used to be inserted into the cavity 11 of the puncture needle 1 and push the horizontal wire knot 32 of the fixed wire 3 out of the cavity 11 through the pusher head 21 so that the horizontal wire knot 32 is stretched and fixed outside the uterine serosa layer.

[0026] During use, under the guidance of B-ultrasound, the puncture needle 1 with the fixed line 3 is passed through the uterine cavity 51 and out of the uterine serosal layer. The horizontal knot 32 of the fixed line 3 arranged in the cavity 11 of the puncture needle 1 is squeezed in the longitudinal direction of the puncture needle 1 due to the space inside the puncture needle 1. Then, the horizontal knot 32 at the front end of the fixed line 3 in the uterine cavity 51 of the puncture needle 1 is completely pushed out through the inner needle 2. After being pushed out, the horizontal knot 32 can be extended to a direction perpendicular to the puncture needle 1. When the puncture needle 1 is withdrawn, the fixed line 3 is squeezed in the cavity 11 of the puncture needle 1 and the horizontal knot 32 is squeezed in the longitudinal direction of the puncture needle 1 due to the space inside the puncture needle 1. The horizontal knot 32 at the front end of the fixing line 3 is perpendicular to the puncture hole on the uterus, which can fix the fixing line 3 on the uterus and prevent it from falling off. It has strong load-bearing capacity and is firmly fixed. By adopting the puncture needle 1 with a fine needle structure, the puncture operation is simple, only requires B-ultrasound guidance, no hysteroscope assistance is required, and no anesthesia is required. Therefore, the contraceptive ring or drug ring tail wire can be placed into the uterine fundus 52 along the fixing line 3 through the fixing line 3, and the fixing line 3 is tied with the contraceptive ring or drug ring tail wire to fix it, thereby fixing the contraceptive ring or drug ring.

[0027] In this embodiment, the puncture needle 1 and the inner needle 2 are both in a straight line shape. During puncture, the puncture needle 1 will pass through the uterine cavity 51 and out of the uterine serosal layer of the uterine fundus 52 .

[0028] Preferably, the pusher head 21 is V-shaped with a wide outside and a narrow inside, the length of the horizontal wire knot 32 is 5-8 mm, the length of the wire body 31 is 27-33 cm, the length of the inner needle 2 is greater than the length of the puncture needle 1, the length of the puncture needle 1 is 23-27 cm, the outer diameter of the puncture needle 1 is 1.4-1.6 mm, the inner diameter of the cavity 11 of the puncture needle 1 is 0.9-1.1 mm, the length of the inner needle 2 is 27-33 cm, and the outer diameter of the inner needle 2 is 0.4-0.6 mm.

[0029] A gripping portion 13 is provided at one end of the needle tail of the puncture needle 1, so that it is easy to hold the gripping portion 13 to facilitate the puncture operation of the puncture needle 1 and better control the puncture force.

[0030] The outer surface of the puncture needle 1 is provided with scale lines 12 along its length direction. The puncture needle 1 is provided with a limiter that can be adjusted in position along its length direction. The limiter can abut against the cervical os to play a limiting role, thereby helping to limit the depth of the puncture needle 1 entering the uterine cavity 51.

[0031] The limiting member is a limiting elastic block 41, the outer diameter of the elastic limiting block is larger than the outer diameter of the puncture needle 1, and an elastic hole adapted to the puncture needle 1 is provided in the limiting elastic block 41. The limiting elastic block 41 is sleeved on the puncture needle 1 through the elastic hole. By utilizing the elastic extrusion of the elastic limiting block, the limiting elastic block 41 can be stably located in the corresponding limiting position on the puncture needle 1, and at the same time, it is convenient to move the limiting elastic block 41 on the puncture needle 1 to adjust the corresponding limiting position of the limiting elastic block 41 on the puncture needle 1. Preferably, the limiting elastic block 41 is a rubber block or a silicone block.

[0032] Example 2

[0033] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that the limiting member is a limiting knob 42, the outer diameter of the limiting knob 42 is larger than the outer diameter of the puncture needle 1, a threaded hole is provided in the limiting knob 42, and an external thread segment is provided on the outer peripheral surface of the puncture needle 1, and the limiting knob 42 is threadedly connected to the external thread segment of the puncture needle 1 through the threaded hole. As a result, it is convenient to adjust the corresponding limiting position of the limiting knob 42 on the puncture needle 1 by rotating the limiting knob 42.

[0034] Other technical features are the same as those in Example 1.

[0035] Example 3

[0036] like Figure 6 and Figure 7 As shown, the difference between this embodiment and embodiment one or embodiment two is that the puncture needle 1 and the inner needle 2 are both arc-shaped and the two are adapted to each other. Therefore, the puncture needle 1 can follow the arc of the puncture needle 1 during puncture, thereby penetrating the uterine serosa layer of the front wall 53 from the uterine cavity 51. Since the uterine fundus 52 is close to the intestines, the intestines can be better avoided by penetrating the front wall 53.

[0037] Other technical features are the same as those in Example 1 or Example 2.

[0038] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. Uterine puncture seton assembly, characterized by: It includes a puncture needle, an inner needle and a fixing line. The puncture needle is used to penetrate the uterine cavity and out of the uterine serosa layer. The puncture needle is provided with a cavity running through both ends thereof. The fixing line is passed through the cavity. The fixing line includes a horizontal knot and a line body fixedly connected to the middle of the horizontal knot. The horizontal knot is arranged perpendicular to the line body. A pusher is provided at one end of the inner needle. The inner needle is used to be inserted into the cavity of the puncture needle and the horizontal knot of the fixing line is pushed out of the cavity by the pusher so that the horizontal knot is stretched and fixed outside the uterine serosa layer.

2. The intrauterine puncture seton assembly according to claim 1, characterized in that: The pusher head is in a V shape that is wide outside and narrow inside.

3. The intrauterine puncture seton assembly according to claim 1, characterized in that: The length of the horizontal knot is 5-8 mm, and the length of the wire body is 27-33 cm.

4. The intrauterine puncture seton assembly according to claim 1, characterized in that: The length of the puncture needle is 23-27 cm, the outer diameter of the puncture needle is 1.4-1.6 mm, the inner diameter of the cavity of the puncture needle is 0.9-1.1 mm, the length of the inner needle is 27-33 cm, and the outer diameter of the inner needle is 0.4-0.6 mm.

5. The intrauterine puncture seton assembly according to claim 1, characterized in that: Scale lines are provided on the outer peripheral surface of the puncture needle along its length direction.

6. The intrauterine puncture seton assembly according to claim 1, characterized in that: One end of the needle tail of the puncture needle is provided with a gripping portion.

7. The intrauterine puncture seton assembly according to claim 1, characterized in that: The puncture needle is provided with a limiting piece which can adjust its position along its length direction.

8. The intrauterine puncture seton assembly according to claim 7, characterized in that: The limiting member is a limiting elastic block, the outer diameter of the elastic limiting block is larger than the outer diameter of the puncture needle, an elastic hole adapted to the puncture needle is provided in the limiting elastic block, and the limiting elastic block is sleeved on the puncture needle through the elastic hole.

9. The intrauterine puncture seton assembly according to claim 7, characterized in that: The limiting part is a limiting knob, the outer diameter of which is larger than the outer diameter of the puncture needle, a threaded hole is provided in the limiting knob, an external thread section is provided on the outer peripheral surface of the puncture needle, and the limiting knob is threadedly connected to the external thread section of the puncture needle through the threaded hole.

10. The intrauterine puncture seton assembly according to claim 1, characterized in that: The puncture needle and the inner needle are both in arc shape and are compatible with each other.

Images