CN216908012U - Endometrium sampler - Google Patents

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an endometrium sampler which comprises an outer sleeve and a core rod movably arranged in the outer sleeve in a penetrating way, wherein the first end of the core rod extends out of a first opening of the outer sleeve, the second end of the core rod can penetrate into or extend out of a second opening of the outer sleeve, a brush section is wound at the second end of the core rod and can be recovered to be completely positioned in the outer sleeve and at least partially extend out of the second opening, the cross section of the brush section is in a trapezoid shape, the extending length of bristles on the brush section relative to the core rod is gradually reduced from the second end to the first end of the core rod, namely the overall shape of the brush section is basically the same as that of an inner cavity of a uterus, when sampling is carried out, the bristles of the brush section can basically contact with the cavity wall and tissue fluid in the whole inner cavity of the uterus, the sampling coverage area is increased, and the obtained sample has higher representativeness, thereby ensuring that the detection result is more accurate.

Description

Endometrium sampler

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to an endometrium sampler.

Background

Clinically, endometrial cancer is mainly diagnosed by taking an endometrial specimen with a sampler such as an endometrial curette, but the method is a non-repeatable invasive sampling method and brings great pain to a patient.

In recent years, clinical studies have proposed noninvasive samplers, one of which is a balloon-type endometrial sampler that performs sampling by collecting mucosal cells, and the other is a negative pressure suction-type endometrial sampler that performs sampling by collecting intrauterine liquid tissues by negative pressure suction. However, when the two kinds of samplers are used for sampling mucosal cells or tissue fluid, the samplers can generally only obtain cells or tissue fluid of a certain part of endometrium, and the sampling is incomplete and unrepresentative, so that the detection result is inaccurate, the judgment of medical staff on the state of illness of a patient is influenced, and the treatment time is delayed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide an endometrium sampler, which aims to solve the technical problem that the detection result is inaccurate due to incomplete sampling and unrepresentative sampling of the endometrium sampler in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an endometrium sampler, including both ends open-ended outer tube and the movable core bar of wearing to locate in the outer tube, the first end of core bar stretches out from the first opening of outer tube, the second end of core bar can penetrate or stretch out from the second opening of outer tube, the second end of core bar is around being equipped with many brush hairs and forming the brush section, the brush section can be retrieved to whole being located the outer tube and at least part can stretch out from the second opening, the cross-section of brush section is the trapezoidal form, and the length that the relative core bar of brush hair on the brush section extends is steadilyd decrease from the second end of core bar to first end.

In some embodiments, the brush segment can extend entirely from the second opening.

In some embodiments, the length of the brush section is between 25mm and 40 mm.

In some embodiments, the bristles of the brush section extend from 2mm to 4mm relative to the axis of the core.

In some embodiments, a handle is attached to the first end of the core rod, the handle having a size greater than the first opening of the outer sleeve.

In some embodiments, the endometrial sampler further comprises an inner sleeve, the outer diameter of the inner sleeve is smaller than or equal to the inner diameter of the outer sleeve, one end of the inner sleeve is connected with the handle, the other end of the inner sleeve is movably arranged in the outer sleeve in a penetrating mode, the core rod is partially sleeved in the inner sleeve, and the brush section is arranged outside the inner sleeve.

In some embodiments, a plug is further disposed at an end of the second end of the core rod, and the size of the plug is larger than that of the second opening.

In some embodiments, the plug is a spherical plug or a hemispherical plug.

In some embodiments, the outer wall surface of the outer sleeve is provided with a mark line, and the distance between the mark line and the top surface of the plug departing from the core rod is 60-80 mm.

In some embodiments, the outer wall surface of the outer sleeve is provided with a graduated scale along the length direction thereof, the distance between the scale mark at the farthest position of the graduated scale, which is far away from the plug, and the top surface of the plug, which is far away from the core rod, is 80mm, and the distance between the scale mark at the closest position of the graduated scale, which is far towards the plug, and the top surface of the plug is 60 mm.

One or more technical schemes in the endometrium sampler provided by the utility model have at least one of the following technical effects: the endometrium sampler of the utility model is characterized in that the core rod is provided with the brush section, the cross section of the brush section is in a trapezoid shape, and the protruding length of the brush hair relative to the core rod is gradually reduced from the second end of the core rod to the first end, namely when the endometrium sampler of the utility model is used for sampling, the length of the brush hair from the deep part of the uterus is gradually increased from the uterine orifice, and the whole shape of the brush section is basically the same as that of the inner cavity of the uterus.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an endometrial sampler provided in an embodiment of the present invention;

FIG. 2 is a schematic structural view of the core rod of the endometrial sampler shown in FIG. 1;

FIG. 3 is a schematic structural view of the core rod of the endometrial sampler shown in FIG. 1 sleeved on the inner sleeve;

FIG. 4 is a schematic partial view of the endometrial sampler shown in FIG. 1;

fig. 5 is a partial structural schematic diagram of an endometrial sampler according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. an outer sleeve; 11. a first opening; 12. a second opening; 13. marking a line; 14. a graduated scale;

20. a core bar; 201. a first end; 202. a second end; 21. a brush section; 211. brushing; 22. a plug; 23. a handle;

30. an inner sleeve.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to fig. 1 to 5 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship as shown in the figures, which is for convenience in describing the utility model and to simplify the description, and that does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and is not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 5, an embodiment of the present invention provides an endometrial sampler, which is suitable for collecting endometrial cell and mucus samples.

As shown in fig. 1 and 2, the endometrial sampler of this embodiment comprises an outer sleeve 10 and a core rod 20, wherein both ends of the outer sleeve 10 are respectively open and form a first opening 11 and a second opening 12, and the core rod 20 is inserted into the outer sleeve 10 and can slide and rotate in the outer sleeve 10. Specifically, as shown in FIG. 1, stem 20 has a first end 201 and a second end 202 disposed along the length of the stem, first end 201 of stem 20 extending from first opening 11 of outer sleeve 10, and second end 202 of stem 20 capable of passing into or extending from second opening 12 of outer sleeve 10.

Further, as shown in fig. 2, the second end 202 of the core rod 20 is provided with a brush section 21, wherein the brush section 21 is formed by inserting a plurality of bristles 211 into the core rod 20, specifically, when the core rod 20 slides in the outer sleeve 10 towards the first opening 11, the brush section 21 can be retracted to be entirely located in the outer sleeve 10, and when the core rod 20 slides in the outer sleeve 10 towards the second opening 12, at least a portion of the brush section can extend out from the second opening 12, so that a portion or all of the bristles 211 of the brush section 21 extending out from the second opening 12 can be used for contacting with the cavity wall of the uterine cavity and the interstitial fluid inside the uterine cavity, thereby brushing the sample.

In this embodiment, as shown in fig. 2, the cross section of the brush section 21 is trapezoidal, and the length of the bristles 211 on the brush section 21 extending relative to the core rod 20 decreases from the second end 202 to the first end 201 of the core rod 20, that is, the length of the bristles 211 of the brush section 21 decreases along the direction close to the outer sleeve 10, and the length change of the bristles 211 is matched with the change of the width dimension of the opening of the uterine cavity, so that the overall shape of the brush section 21 is substantially the same as the shape of the uterine cavity, and thus, during sampling, each bristle 211 of the brush section 21 can contact with the cavity wall of the uterine cavity and the interstitial fluid in the cavity to realize sampling by designing the specific length of the bristles 211. The cross section of the brush segment 21 refers to the cross section of the brush segment 21 along the axial direction of the core rod 20.

In view of this, the endometrium sampler provided by the embodiment arranges the brush section 21 on the core rod 20, the cross section of the brush section 21 is in a trapezoid shape, and the protruding length of the bristles 211 relative to the stem 20 decreases from the second end 202 of the stem 20 to the first end 201, that is, when the endometrial sampler of the present invention is used for sampling, the length of the brush 211 gradually increases from the uterine orifice in the direction from the deep part of the uterus, the overall shape of the brush section 21 is substantially the same as the shape of the uterine cavity, therefore, during sampling, the contact area between the bristles 211 of the brush section 21 and the wall of the uterine cavity is larger, the bristles 211 of the brush section 21 can basically contact with the wall of the whole uterine cavity and tissue fluid in the cavity, the sampling coverage area is increased, the obtained sample has higher representativeness, therefore, the phenomenon that the detection result is not prepared due to incomplete sampling can be effectively avoided, and the detection result is ensured to be more accurate. In this embodiment, the core rod 20 is a metal rod, such as a stainless steel rod or a titanium alloy rod, and the bristles 211 of the brush section 21 correspond to the bristles 211 having elasticity, such as the bristles 211 made of fiber material, such as nylon.

In another embodiment of the present invention, as shown in fig. 1, when the core rod 20 slides towards the second opening 12 of the outer sleeve 10, the brush section 21 can fully extend from the second opening 12, so that the bristles 211 of the entire brush section 21 can be used to contact the cavity wall of the uterine cavity for sampling. During specific use, set up brush section 21 and can all stretch out from second opening 12 of outer tube 10, during actual sampling, according to specific sampling environment such as the length of patient's uterus inner chamber (the degree of depth of relative uterus mouth), through slip core bar 20 come control brush section 21 from second opening 12 the length of stretching out can, application scope is wider, uses more in a flexible way.

In an embodiment, as shown in FIG. 2, the length L of the brush segment 21 is as follows₁25 mm-40 mm, the length of the brush section 21 is approximately consistent with the length of the uterine cavity of a general adult. Thus, along the length direction of the uterine cavity, the brush section 21 can basically and completely cover the whole uterine cavity during sampling, so that the sampling with the largest area is realized.

In practical use, a longer brush length can be generally selected, and the length of the brush section 21 extending from the second opening 12 is controlled by sliding the core rod 20 to control the actual contact length of the brush section 21 with the wall of the uterine cavity, so that the endometrial sampler of the present invention can meet the sampling requirements of more sampling objects.

In the embodiment shown in FIG. 2, the length L of the brush segment 21₁May be 25mm, 28mm, 30mm, 32mm, 35mm, 36mm, 38mm, 40mm, or the like.

In another embodiment of the present invention, as shown in FIG. 2, the bristles 211 of the brush section 21 have an extension length of 2mm to 4mm with respect to the axis of the core 20, i.e., each bristle 211 has a length of 2mm to 4mm in a direction perpendicular to the axis of the core 20 (as indicated by the dotted line R in FIG. 2). Specifically, in this embodiment, the length of each bristle 211 is further such that the length of each bristle 211 decreases from the second end 202 to the first end 201 of the core 20, i.e., the length L of the bristle 211 closest to the second end 202 of the core 20 extends along the axis R₂Longest and extending for a longest length of no more than 4mm, and the bristles 211 furthest from the second end 202 of the stem 20 extend for a length L relative to the axis R₃Shortest and the shortest length of extension is not less than 2 mm.

Thus, the diameter of the cross section circle of the brush section 21 perpendicular to the axis of the core rod 20 is 4 mm-8 mm, the diameter is approximately consistent with the inner diameter of the inner cavity of the uterus of a general adult, and the diameter variation trend of the cross section circle of the brush section 21 is also consistent with the trend that the uterus gradually expands from the mouth to the inside of the uterus, so that the free ends of the bristles 211 can be in contact with the cavity wall of the inner cavity of the uterus during sampling, and samples can be taken by brushing. Meanwhile, the whole section of the brush bristles 211 can not be stuck to the cavity wall of the uterine cavity because the extension length of the brush bristles 211 relative to the axis of the core rod 20 is not too long, so that the mutual interference among the brush bristles 211 is effectively avoided, the cavity wall of the uterine cavity can be prevented from being scratched when a sample is taken because the whole section of the brush bristles 211 is stuck to the cavity wall, and the use safety is higher.

In another embodiment of the present invention, as shown in fig. 1 and 3, a handle 23 is connected to a first end 201 of the core rod 20, and the handle 23 is used for being held by a medical staff member to push and pull the core rod 20 to slide relative to the outer sleeve 10 or to apply force to rotate the core rod 20. Specifically, the size of the handle 23 is larger than the size of the first opening 11 of the outer sleeve 10, so that the handle 23 is always kept outside the outer sleeve 10, and the handle 23 is prevented from being inserted into the outer sleeve 10 by mistake.

In the embodiment, when the brush section 21 is fully extended from the second opening 12 of the outer sheath 10, the first opening 11 of the outer sheath 10 abuts against the handle 23, so that after the brush section 21 is inserted into the uterine cavity, the outer sheath 10 is pulled back until the first opening 11 of the outer sheath abuts against the handle 23, and the brush section 21 is fully extended, and the operability is stronger.

In another embodiment of the present invention, as shown in fig. 1 and 3, the endometrial sampler further comprises an inner sleeve 30, wherein the outer diameter of the inner sleeve 30 is smaller than or equal to the inner diameter of the outer sleeve 10, one end of the inner sleeve 30 is connected with the handle 23, the other end of the inner sleeve 30 is movably disposed in the outer sleeve 10, the core rod 20 is partially sleeved in the inner sleeve 30, and the brush section 21 is located outside the inner sleeve 30. That is, the handle 23 is connected with the inner sleeve 30, the inner sleeve 30 is inserted into the outer sleeve 10, and the first end 201 of the core rod 20 is accommodated in the inner sleeve 30, so that when the first end 201 of the core rod 20 extends out from the first opening 11 of the outer sleeve 10, the inner sleeve 30 can play a role of protecting the core rod 20, thereby preventing the core rod 20 from being polluted due to contact with the external environment, ensuring that the core rod 20 cannot contact with the external environment in the whole sampling process, and ensuring more sanitary and safer sampling.

In another embodiment of the present invention, as shown in fig. 1 and 4, the end of the second end 202 of the core rod 20 is further provided with a plug 22, the size of the plug 22 is larger than the size of the second opening 12, so that the plug 22 can plug the second opening 12 of the outer sleeve 10, so that, after the sampling is completed, the core rod 20 is pulled toward the first opening 11 of the outer sleeve 10 and the entire brush section 21 is completely inserted into the outer sleeve 10, and the plug 22 plugs the second opening 12 of the outer sleeve 10, thereby preventing microorganisms, dust and the like in the external environment from entering the outer sleeve 10 through the second opening 12 to contaminate the sample, ensuring that the sample is not contaminated, and providing a better guarantee for the accuracy and reliability of the detection result.

In some embodiments, as shown in fig. 1 and 4, the plug 22 may be a spherical plug 22 or a hemispherical plug 22, which is better for sealing the first opening 11. Specifically, the plug 22 may be a plug 22 with certain elasticity, so that when the plugging effect on the first opening 11 is further improved, the elastic spherical or hemispherical plug 22 does not scratch or scratch the wall of the uterine cavity when contacting the wall of the uterine cavity, thereby preventing the patient from being injured during sampling and relieving the pain of the patient.

In another embodiment of the utility model, as shown in fig. 1 and 4, the outer wall of the outer sleeve 10 is provided with an identification line 13, and the distance L between the identification line 13 and the top surface of the plug 22 away from the core rod 20 is set₄The distance between the mark line 13 and the top surface of the plug 22 is approximately consistent with the length from the vaginal entrance to the deepest position of the uterine cavity of a normal adult, and the distance is 60-80 mm. Therefore, during sampling, the depth length of the outer sleeve 10 and the core rod 20 in the uterine cavity can be determined according to the position change of the mark line 13 relative to the vaginal opening, so that the influence on the sampling effect caused by insufficient insertion depth is avoided, and the damage to the inner wall of the uterus caused by too deep insertion can also be avoided.

In a particular embodiment, as shown in FIG. 4, the distance L between the identification line 13 and the top surface of the plug 22 facing away from the core pin 20 is₄May be 60mm, 62mm, 65mm, 68mm, 70mm, 72mm, 75mm, 78mm or 80mm, etc.

In another embodiment of the present invention, as shown in fig. 5, unlike the above-mentioned embodiment, in this embodiment, the outer wall surface of the outer sleeve 10 is provided with the graduated scale 14 along the length direction thereof, that is, the graduated scale 14 is arranged to replace the above-mentioned graduation lines, and the distance L between the farthest graduation line of the graduated scale 14 departing from the plug 22 and the top surface of the plug 22 departing from the core rod 20 is provided₅80mm, the distance L between the nearest graduation mark of the graduated scale 14 facing the plug 22 and the top surface of the plug 22₆At 60mm, the centerline of the instant scale 14 is about 70mm from the top surface of the plug 22. Thus, the arrangement of the graduated scale 14 can also help to determine the depth of the outer sleeve 10 and the core rod 20 inserted into the uterine cavity, and for some conditions that the length from the vaginal inlet of the patient to the deepest position of the uterine cavity cannot be determined, the graduated scale 14 is arranged to facilitate reading the insertion depth, so that the use is more flexible and convenient.

For the endometrial sampler of this embodiment, when used specifically, the following steps are essentially followed:

1) the vulva, the vagina and the cervix of the patient are thoroughly disinfected;

2) taking out the endometrium sampler of the utility model from the packaging bag, and in the taking process, as shown in fig. 1, a grip handle 23 applies force to pull the core rod 20 to move towards the first opening 11 of the outer sleeve 10, so that the plug 22 seals the second opening 12 of the outer sleeve 10, and the brush section 21 is completely accommodated in the outer sleeve 10;

3) the end of the endometrial sampler provided with the plug 22 is inserted into the deepest part of the uterus through the cervix, and the insertion depth can be judged by means of the scale line shown in figure 4 or the scale ruler 14 shown in figure 5 on the outer sleeve 10 in the insertion process;

4) after the plug 22 reaches the deepest part of the uterus, the outer sleeve 10 is pulled back until the second opening 12 of the outer sleeve 10 abuts against the handle 23, then the handle 23 is held to apply force to drive the core rod 20 to rotate, for example, the core rod 20 is driven to rotate 360 degrees in the clockwise direction, and/or the core rod 20 is driven to rotate 360 degrees in the counterclockwise direction (in the reverse direction), the core rod 20 is repeatedly rotated for multiple times, and the bristles 211 adhere to tissue fluid and brush cells from the cavity wall of the inner cavity of the uterus in the rotating process of the core rod 20;

5) after the rotary sampling is finished, the force is applied to push the outer sleeve 10 to move forwards away from the handle 23, so that the plug 22 blocks the second opening 12, the brush is completely accommodated in the outer sleeve 10, and the endometrial sampler is taken out;

6) and (4) immediately preserving the cells and the tissue fluid which are brushed by the brush into the sample preserving fluid after the endometrium sampler is taken out.

According to the endometrium sampler of each embodiment of the utility model, the brush bristles 211 of the brush section 21 of the core bar 20 can basically brush samples from the cavity wall of the whole uterine cavity, the sampling coverage area is increased, and the obtained samples have higher representativeness, so that the phenomenon that the detection result is not prepared due to incomplete sampling can be effectively avoided, and the detection result is ensured to be more accurate; moreover, the brush bristles 211 brush the sample without damaging the uterine cavity of the patient, so that noninvasive sampling can be realized, and pain of the patient during sampling can be relieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The endometrium sampler is characterized by comprising an outer sleeve with openings at two ends and a core rod movably arranged in the outer sleeve in a penetrating mode, wherein the first end of the core rod extends out of a first opening of the outer sleeve, the second end of the core rod can penetrate into or extend out of a second opening of the outer sleeve, a plurality of bristles are wound at the second end of the core rod to form a brush section, the brush section can be recovered to be completely positioned in the outer sleeve, at least part of the brush section can extend out of the second opening, the cross section of the brush section is in a trapezoid shape, and the length of the bristles on the brush section, which extend relative to the core rod, is gradually reduced from the second end of the core rod to the first end.

2. An endometrial sampler as claimed in claim 1, wherein: the brush segments can all protrude from the second opening.

3. An endometrial sampler as claimed in claim 2, wherein: the length of the brush section is 25 mm-40 mm.

4. An endometrial sampler as claimed in claim 2, wherein: the extension length of the brush hair of the brush section relative to the axis of the core rod is 2 mm-4 mm.

5. An endometrial sampler as claimed in any one of claims 1 to 4, wherein: the first end of the core rod is connected with a handle, and the size of the handle is larger than that of the first opening of the outer sleeve.

6. An endometrial sampler as claimed in claim 5, wherein: the endometrium sampler further comprises an inner sleeve, the outer diameter of the inner sleeve is smaller than or equal to the inner diameter of the outer sleeve, one end of the inner sleeve is connected with the handle, the other end of the inner sleeve movably penetrates through the outer sleeve, the core bar is partially sleeved in the inner sleeve, and the brush section is located outside the inner sleeve.

7. An endometrial sampler as claimed in any one of claims 1 to 4, wherein: and a plug is further arranged at the end part of the second end of the core rod, and the size of the plug is larger than that of the second opening.

8. An endometrial sampler as claimed in claim 7, characterized in that: the plug is a spherical plug or a hemispherical plug.

9. An endometrial sampler as claimed in claim 7, wherein: and the outer wall surface of the outer sleeve is provided with a mark line, and the distance between the mark line and the top surface of the plug departing from the core rod is 60-80 mm.

10. An endometrial sampler as claimed in claim 7, wherein: the outer wall surface of the outer sleeve is provided with a scale ruler along the length direction, the distance between the farthest scale line of the scale ruler departing from the plug and the top surface of the plug departing from the core rod is 80mm, and the distance between the closest scale line of the scale ruler facing the plug and the top surface of the plug is 60 mm.

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