Line knot fixing steel needle for hysteroscope Mangyule ring fixation
By designing a suture-fixed steel pin for hysteroscopic Mirena IUD fixation, the problem of Mirena IUD displacement and dislodgement in patients with large uterine cavities was solved, achieving efficient and secure fixation and reducing surgical complexity and cost.
Patent Information
- Application Number
- CN202422833066.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing technologies, the Mirena IUD is prone to displacement and dislodgement in patients with large uterine cavities. Existing solutions such as subcutaneous injection of GnRHa, hysteroscopic suturing, or Ginny IUD fixation have problems such as high cost, high surgical difficulty, or damage to the integrity of the Mirena IUD.
A suture fixing needle for hysteroscopic Mirena IUD fixation was designed, comprising a handle, a shaft, and a tip. The tip has a suture groove. Under direct hysteroscopic visualization, the coil is hung in the suture groove and inserted into the myometrium of the uterine fundus to fix the Mirena IUD.
It improves the fixation efficiency and success rate of the Mirena IUD, with a smaller incision and faster healing. The suture knots are firmly fixed, preventing slippage of the Mirena IUD and reducing surgical complexity and cost.
Smart Images
Figure CN223668161U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a line knot fixed steel needle for hysteroscopic Mirena ring fixation technique belongs to the field of medical instruments. BACKGROUND
[0002] Mirena ring is a small and flexible T-shaped intrauterine device, and two horizontal arms are used for clamping the uterine cavity to keep the Mirena ring position stable. However, due to individual differences or disease reasons, the uterine cavity volume of some patients is large, and the Mirena ring is easy to move down and fall off after being directly placed. In view of this situation, the following solutions are currently used in clinical practice: GnRHa is injected subcutaneously to make the uterus shrink and then the Mirena ring is placed, which is high in cost and has a high risk of uterine enlargement after stopping the needle; Mirena ring suture under hysteroscopy, which is difficult and time-consuming, high in cost, and has a high probability of Mirena ring moving down and falling off again due to the cutting effect of the suture; Mirena ring fixation technique using Geni ring, which needs to damage the integrity of the Mirena ring and place all or part of the Geni ring at the same time, which is currently controversial. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned deficiencies in the prior art and providing a line knot fixed steel needle for hysteroscopic Mirena ring fixation technique with a reasonable structure design.
[0004] The utility model adopts the technical scheme of solving the above-mentioned problems: the line knot fixed steel needle for hysteroscopic Mirena ring fixation technique, which has the structural characteristics that it comprises a handle part, a rod part and a sharp part, the handle part is arranged at one end of the rod part, the sharp part is arranged at the other end of the rod part, the sharp part comprises a needle tip main body, a wire clamping groove and a wire clamping platform, and the wire clamping groove is arranged between the root of the needle tip main body and the wire clamping platform.
[0005] Further, the bottom of the wire clamping groove is arranged in a C-shaped structure.
[0006] Further, the axis of the rod part is the rod part axis, the axis of the needle tip main body is the needle tip axis, and the rod part axis and the needle tip axis are arranged in a staggered manner.
[0007] Further, the handle part, the rod part and the sharp part are arranged in an integrated structure.
[0008] Further, the needle tip main body is arranged in a quadrangular pyramid structure.
[0009] Further, the included angle between the two side walls of the wire clamping groove is 80°.
[0010] Compared with the prior art, the wire knot fixing steel needle has the following advantages: the design length and diameter of the wire knot fixing steel needle can pass through the hysteroscopic instrument operation hole, and the wire knot fixing steel needle can be operated under the direct vision of the hysteroscope, so that the fixing efficiency and success rate are greatly improved; when the hysteroscopic Mirena ring fixation is performed, the coil can be hung on the needle tip main body and clamped in the wire clamping groove to prevent slipping, the coil and the wire knot can be moved in one direction by pushing the handle, the rod and the tip, the coil and the wire knot are placed in the incision in the myometrial layer by piercing the incision in the center of the uterine fundus in the uterine cavity and entering the myometrial layer, and the wire knot is retained in the myometrial layer when the fixing steel needle is pulled out, so that the Mirena ring is fixed. The incision is small, the incision heals quickly through natural uterine contraction, and the wire knot is fixed more firmly. The effect of the connecting line can prevent the wedge-shaped incision in the uterine fundus from being too large to affect the fixing effect. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is a perspective structure schematic view of the wire knot fixing steel needle for hysteroscopic Mirena ring fixation of an embodiment of the utility model.
[0012] Figure 2 is Figure 1 A part enlarged structure schematic view in.
[0013] Figure 3 is a cross-sectional structure schematic view of the wire knot fixing steel needle for hysteroscopic Mirena ring fixation of an embodiment of the utility model.
[0014] Figure 4 is Figure 3 B part enlarged structure schematic view in.
[0015] Figure 5 is a use state structure schematic view of the wire knot fixing steel needle for hysteroscopic Mirena ring fixation of an embodiment of the utility model.
[0016] In the figure: handle 1, rod 2, tip 3, needle tip main body 4, wire clamping groove 5, wire clamping table 6, rod axis 7, needle tip axis 8, coil 9. DETAILED DESCRIPTION
[0017] The utility model will be further explained in detail in combination with the drawings and through embodiments, and the following embodiments are an explanation of the utility model, and the utility model is not limited to the following embodiments.
[0018] EMBODIMENT
[0019] Referring to Figures 1 to 5As shown, it is understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation of the present application. The limiting conditions, so it has no technical significance, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and the purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, if the words such as "upper", "lower", "left", "right", "middle" and "one" are used in the present specification, they are only for the purpose of clear description, and not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the scope of the present application without changing the technical content.
[0020] The wire knot fixing steel needle for hysteroscopic Mirena ring fixation in the embodiment comprises a handle part 1, a rod part 2 and a sharp part 3, the handle part 1 is arranged at one end of the rod part 2, the sharp part 3 is arranged at the other end of the rod part 2, and the handle part 1, the rod part 2 and the sharp part 3 are arranged in an integral structure.
[0021] The sharp part 3 in the embodiment comprises a needle tip main body 4, a wire clamping groove 5 and a wire clamping platform 6, the wire clamping groove 5 is arranged between the root of the needle tip main body 4 and the wire clamping platform 6, the needle tip main body 4 is arranged in a quadrangular pyramid structure, the bottom of the wire clamping groove 5 is arranged in a C-shaped structure, and the included angle between the two side walls of the wire clamping groove 5 is 80°.
[0022] The axis of the rod part 2 in the embodiment is a rod axis 7, the axis of the needle tip main body 4 is a needle tip axis 8, and the rod axis 7 and the needle tip axis 8 are arranged in a staggered manner.
[0023] Specifically, the anti-disengagement steel needle hangs the coil 9 on the needle tip main body 4 and clamps it in the wire clamping groove 5 when in use, and the handle part 1 can be pushed in and out of the puncture through the needle tip main body 4, the coil 9 and the wire knot are penetrated into the uterine fundus muscle layer incision pierced by the needle tip main body 4, and the sharp part 3 is pulled out to make the wire knot stay in the muscle layer. Since the opening of the wire clamping groove 5 faces the direction of the needle tip main body 4, the wire body can be moved in one direction when the handle part 1, the rod part 2 and the sharp part 3 are pushed, and the wire knot can be retained in the muscle layer when the handle part 1, the rod part 2 and the sharp part 3 are pulled.
[0024] Furthermore, it needs to explain, the specific embodiment described in this specification, the shape of zero, component, the name taken etc. can be different, the above contents described in this specification are only the example of the structure of the utility model. The equivalent change or simple change made according to the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace the specific embodiments described, as long as not deviating from the structure of the utility model or beyond the range defined in the claims, should belong to the protection scope of the utility model.
Claims
1. A knot fixation steel needle for hysteroscopic Mirena ring fixation, characterized in that: It includes handle (1), rod (2) and tip (3), the handle (1) is arranged at one end of the rod (2), the tip (3) is arranged at the other end of the rod (2), the tip (3) includes needle tip body (4), wire clamping groove (5) and wire clamping platform (6), the wire clamping groove (5) is arranged between the root of the needle tip body (4) and the wire clamping platform (6).
2. The knot fixation steel needle for hysteroscopic Mirena ring fixation according to claim 1, characterized in that: The bottom of the wire clamping groove (5) is arranged in a C-shaped structure.
3. The knot fixation steel needle for hysteroscopic Mirena ring fixation according to claim 1, characterized in that: The axis of the rod (2) is the rod axis (7), the axis of the needle tip body (4) is the needle tip axis (8), the rod axis (7) and the needle tip axis (8) are arranged in a staggered manner.
4. The knot fixation steel needle for hysteroscopic Mirena ring fixation according to claim 1, characterized in that: The handle (1), rod (2) and tip (3) are arranged in an integrated structure.
5. The knot fixation steel needle for hysteroscopic Mirena ring fixation according to claim 1, characterized in that: The needle tip body (4) is arranged in a quadrangular pyramid structure.
6. Thread knot fixation steel needle for hysteroscopic Mirena ring fixation according to claim 1, characterized in that: The included angle between the two side walls of the wire clamping groove (5) is 80°.