CN221750580U - An endometrial sampler capable of ultrasonic positioning - Google Patents

Abstract

The utility model discloses an endometrial sampler capable of ultrasonic positioning, comprising an inner core, a sleeve and a developing ring; the inner core is sleeved in the sleeve, a preset distance is provided between the end of the inner core and the end of the sleeve, a piston ring is provided at the end of the inner core, the piston ring is tightly matched with the tube wall of the sleeve, and the inner core can slide in the sleeve; the developing ring is fixedly arranged on the outer side of the end of the sleeve. The endometrial sampler capable of ultrasonic positioning is convenient for the operator to observe the relative position of the sampler, the cervix and the uterine cavity, and effectively solves the problem of difficulty in inserting the sampler for special patients; it significantly reduces the pain and operation time of the patient, and reduces the risk of related complications. It is simple in structure and has high cost performance.

Description

An endometrial sampler capable of ultrasonic positioning

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endometrial sampler capable of ultrasonic positioning.

Background Art

Disposable endometrial samplers are commonly used tools in the field of gynecology and reproductive medicine. Endometrial tissue can be obtained by aspiration of the endometrium, and pathological examination or microbiological examination can be performed to clarify endometrial lesions and assist in the etiology diagnosis and treatment effect evaluation of infertile patients. This operation method is simple and quick in most cases and is widely used in clinical practice.

However, in clinical practice, patients with difficult operations are often encountered, such as extremely flexed uterus, cervical stenosis, cervical curvature, cervical deformity, etc. Clinicians need to rely on experience to explore the direction of the cervix and uterus and make multiple attempts, which is difficult and time-consuming. Patients often experience obvious pain during the operation, and the risks of bleeding and infection also increase. The use of abdominal ultrasound-guided operations can assist clinicians in inserting the endometrial sampler into the cervical canal more quickly, reducing patient pain and related complications. However, the disposable endometrial samplers commonly used on the market are made of ordinary plastic materials, which do not develop well under ultrasound and have poor distinguishability, greatly reducing the auxiliary role of ultrasound development.

Utility Model Content

In order to overcome the technical problem that traditional endometrial samplers have poor visualization under ultrasound, the utility model provides an endometrial sampler that can be ultrasonically positioned. The endometrial sampler that can be ultrasonically positioned can be clearly visualized and positioned under ultrasound, assisting doctors to intuitively identify the relative positions of the endometrial sampler, the cervix, and the uterine cavity, facilitating doctors' surgical operations, reducing surgical difficulty, and reducing patients' pain and the risk of complications.

The utility model discloses an endometrial sampler capable of ultrasonic positioning, characterized in that it comprises an inner core, a sleeve and a developing ring; the inner core is sleeved in the sleeve, a preset distance is provided between the end of the inner core and the end of the sleeve, a piston ring is provided at the end of the inner core, the piston ring is tightly matched with the tube wall of the sleeve, and the inner core can slide in the sleeve; the developing ring is fixedly arranged on the outer side of the end of the sleeve.

During the operation, the surgeon holds the ultrasonically localizable endometrial sampler and slowly inserts it from the cervical opening. At this time, abdominal ultrasound can be used as an auxiliary guide, and the developing ring forms a strong light spot reflection under ultrasound, so that the position of the end of the cannula is clearly displayed, which is convenient for the doctor to adjust the direction and depth. When the cannula is inserted into the uterine cavity and the B-ultrasound shows that it has reached the depth of the uterine fundus, the inner core can be moved along the lumen direction of the cannula to form a negative pressure in the cannula cavity, and the inner core is moved back and forth several times as needed, and the cannula is rotated so that the endometrial tissue of each wall can be sucked into the lumen as needed. By adopting the above technical solution, the ultrasonic imaging effect can be significantly improved, which is convenient for the operator to observe the relative position of the sampler with the cervix and uterine cavity, and effectively solves the problem of difficulty in inserting the sampler for special patients; significantly reduces the patient's pain and operation time, and reduces the risk of related complications. And the structure is simple and cost-effective.

Furthermore, the preset distance is 5 mm. The preset distance between the end of the inner core and the end of the sleeve can ensure that the end of the sampling sleeve is softer and easier to enter the uterus.

Furthermore, the developing ring is made of metal.

Furthermore, the material of the developing ring is stainless steel, platinum or platinum-iridium alloy. The metal developing ring can make the development under ultrasound clearer.

Furthermore, a grid groove reflective layer is provided on the surface of the developing ring, which can enhance the reflection effect of metal and ensure the developing effect.

Furthermore, the width of the developing ring is 0.5-5 mm.

Furthermore, the width of the developing ring is 3 mm.

Furthermore, the tail of the sleeve has a limiting portion, and the inner diameter of the limiting portion is smaller than the inner diameter of the piston ring. When the piston ring on the inner core moves to the limiting portion, it cannot continue to move outward, so the limiting portion can prevent the operator from completely pulling the inner core out of the cavity of the sampling sleeve.

Furthermore, a plurality of scale bars are arranged on the surface of the sleeve, through which the operator can conveniently measure the depth of the endometrial sampler capable of ultrasonic positioning entering the uterine cavity.

Furthermore, the distance between each of the scale bars is 1 cm.

Furthermore, an operating handle is provided at the tail of the inner core.

Furthermore, the surface of the operating handle has anti-skid patterns. The operating handle and the anti-skid patterns are provided to facilitate operation by the user.

Furthermore, the ultrasound-localizable endometrial sampler also includes a tail decoration piece, which is fixedly connected to the tail of the sleeve and wraps a portion of the inner core.

The utility model provides an endometrial sampler that can be positioned by ultrasound, which is convenient for the operator to observe the relative position of the sampler, the cervix and the uterine cavity, effectively solving the problem of difficult sampler insertion in special patients, significantly reducing the patient's pain and operation time, and reducing the risk of related complications. It is simple in structure and has high cost performance.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a perspective view of an embodiment of the utility model;

FIG2 is a perspective view and a partially enlarged schematic view of a sleeve according to an embodiment of the present utility model;

FIG. 3 is a perspective view of the inner core of the embodiment of the utility model.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

As shown in FIG1 , an endometrial sampler capable of ultrasonic positioning is characterized in that it comprises an inner core 1, a sleeve 2 and a metal developing ring 3; the inner core 1 is sleeved in the sleeve 2, and there is a preset distance d between the end of the inner core 1 and the end of the sleeve 2, and the preset distance d is 5 mm; the inner core 1 can slide in the sleeve 2; the developing ring 3 is fixedly arranged on the outer side of the end of the sleeve 2; and further comprises a tail decorative piece 4, which is fixedly connected to the tail of the sleeve 2 and wraps part of the inner core 1. The material of the developing ring 3 is preferably stainless steel, platinum or platinum-iridium alloy.

As shown in FIG2 , the developing ring 3 is fixedly mounted on the outer side of the end of the sleeve 2, and a grid groove reflective layer 31 is provided on the surface of the developing ring. In this embodiment, the width D of the developing ring is 3 mm. In other embodiments, the width of the developing ring may be 0.5 mm or 5 mm or other reasonable widths. The tail of the sleeve 2 is provided with a limiting portion 21, and the inner diameter of the limiting portion 21 is smaller than the inner diameter of the piston ring 11. A plurality of scale bars 22 are provided on the surface of the sleeve 2, and the distance h between each of the scale bars 22 is 1 cm.

As shown in FIG3 , a piston ring 11 is disposed at the end of the inner core 1 , and the piston ring 11 is tightly matched with the tube wall of the sleeve 2 ; an operating handle 12 is disposed at the tail of the inner core 1 ; and the surface of the operating handle 12 has anti-slip texture 121 .

Finally, it should be noted that the embodiments of the present invention disclose only preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. An endometrium sampler capable of being positioned by ultrasonic, which is characterized by comprising an inner core, a sleeve and a developing ring; the inner core is sleeved in the sleeve, a preset distance is reserved between the end part of the inner core and the end part of the sleeve, a piston ring is arranged at the end part of the inner core, the piston ring is tightly matched with the wall of the sleeve, and the inner core can slide in the sleeve; the developing ring is fixedly arranged outside the end part of the sleeve.

2. An endometrial sampler according to claim 1, wherein the preset distance is 5mm.

3. The endometrial sampler of claim 1, wherein the imaging ring is a metallic material.

4. An endometrial sampler according to claim 3, in which the surface of the imaging ring is provided with a grid groove reflective layer.

5. An endometrial sampler as claimed in claim 3, wherein the width of the imaging ring is 3mm.

6. The endometrial sampler of claim 1, wherein the tail of the sleeve has a stop with an inner diameter that is smaller than an inner diameter of the piston ring.

7. An endometrial sampler according to claim 1, in which the surface of the sleeve is provided with a number of graduation strips, each of which is spaced apart by 1cm.

8. The endometrial sampler of claim 1, wherein the tail portion of the inner core is provided with an operating handle, and the surface of the operating handle is provided with anti-slip lines.

9. The endometrial sampler of any one of claims 1-8, further comprising a tail trim fixedly connected to the tail of the sleeve and wrapping a portion of the inner core.