CN216777117U - Core rod type endometrium sampler - Google Patents

Abstract

The utility model provides a core bar type endometrium sampler, which comprises a holding guide component and a movable suction component, wherein the holding guide component is in a long strip shape, a holding cavity is arranged in the holding guide component, one end of the holding guide component is provided with a sample inlet, the other end of the holding guide component is provided with a plug-in port, the sample inlet and the plug-in port are respectively communicated with the holding cavity, the movable suction component is matched with the holding cavity in shape, can extend into the holding cavity through the plug-in port and move along the holding cavity, the holding cavity guides the moving process of the movable suction component, and negative pressure is formed in the holding cavity to ensure that endometrium tissue is sucked into the holding cavity through the sample inlet; the accommodating guide member is made of elastic materials, the size of the accommodating cavity is smaller than that of the movable suction member, and the movable suction member extends into the accommodating cavity and forms interference fit with the accommodating guide member to seal the contact surface of the movable suction member and the accommodating guide member; the flexible sheath has good flexibility, can adapt to sheaths with bending requirements, and is flexible and convenient to use.

Description

Core rod type endometrium sampler

Technical Field

The utility model relates to pathological sampling equipment, in particular to a core rod type endometrial sampler.

Background

Aiming at the diagnosis requirement of endometrial lesion, diagnostic uterine curettage belongs to invasive operation, can cause obvious pain for patients, and has the risks of complications such as uterine perforation, infection and the like, while endometrial biopsy under a hysteroscope has high operation technical requirement and expensive inspection cost, and is not suitable for being used as a conventional means for diagnosing endometrial lesion, the diagnostic uterine curettage is basically replaced by an outpatient-based endometrial sampling technology to become a preferred method for diagnosing endometrial lesion, and the technologies provide minimally invasive selection for diagnosing endometrial cancer, overlong hyperplasia and other endometrial pathological changes. However, the conventional endometrial samplers are relatively large in size and cannot be used with a particular instrument (e.g., a sheath of a hysteroscope). And the instrument channels of part of instruments (such as hysteroscope sheaths) are thin, the size of the endometrium sampler is required to be correspondingly reduced, the strength of the push rod of the existing product is insufficient, and the use effect is poor. Therefore, there is a need for an improved endometrial sampler that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a core rod type endometrial sampler, so that the convenience in use is improved, and the production cost is reduced.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a mandrel-type endometrial sampler comprising:

the accommodating guide member is long-strip-shaped, an accommodating cavity is formed in the accommodating guide member, one end of the accommodating guide member is provided with a sample inlet, the other end of the accommodating guide member is provided with a plug port, and the sample inlet and the plug port are respectively communicated with the accommodating cavity;

the movable suction component is matched with the shape of the accommodating cavity, can extend into the accommodating cavity through the plug port and move along the accommodating cavity, the accommodating cavity guides the moving process of the movable suction component, and negative pressure is formed in the accommodating cavity to suck endometrial tissues into the accommodating cavity through the sample inlet;

wherein:

the accommodating guide member is made of elastic materials, the size of the accommodating cavity is smaller than that of the movable suction member, and after the movable suction member extends into the accommodating cavity, the movable suction member and the accommodating guide member form interference fit, so that the contact surface of the movable suction member and the accommodating guide member is sealed.

Specifically, the accommodating guide member includes:

the sleeve pipe is held, and this sheathed tube head that holds is enclosed construction, and its outer wall is cylindrical smooth surface, holds the cavity and follows the axial extension that holds the sheathed tube, and the introduction port is seted up in holding sheathed tube head lateral wall, and the interface is seted up in holding sheathed tube afterbody.

The middle part of the sample inlet is sunken towards the inner side of the containing sleeve, and hook parts are formed at two ends of the sample inlet.

The outer wall of the head of the accommodating sleeve is a spherical or conical smooth surface, so that damage to the endometrium is avoided.

A plurality of sample inlets are formed, and the sample inlets are arranged along the circumferential direction or the axial direction of the accommodating sleeve respectively.

The movable suction member includes:

the outer wall of the head of the suction core rod is a spherical or conical smooth surface, so that the side wall of the accommodating cavity is prevented from being scratched.

The tail of the suction core rod is provided with an operating handle, and the suction core rod can be driven by the operating handle to move in the accommodating cavity.

A long waist hole is arranged in the operating handle and extends along the axial direction of the core rod.

The outer wall of the operating handle is provided with a positioning notch.

The joint of the operating handle and the suction core rod is provided with a limiting part, the diameter of the limiting part is larger than that of the accommodating sleeve, and the insertion length of the suction core rod is limited by the limiting part.

The suction core rod is made of metal or plastic, and the outer wall of the suction core rod is a cylindrical smooth surface.

The outer wall of the head of the suction core rod is provided with a prompting structure to prompt an operator not to completely draw out the suction core rod from the accommodating cavity.

The utility model has the advantages that:

the core rod type endometrium sampler adopts the receiving sleeve to form interference fit with the suction core rod, the receiving cavity is used as a negative pressure forming structure and also used as an endometrium tissue receiving structure, when the suction core rod moves, the receiving cavity guides the suction core rod and forms negative pressure in the receiving cavity, so that the endometrium tissue is sucked into the receiving cavity through the sample inlet, the diameter of the endometrium tissue receiving cavity is smaller, the flexibility is better, the endometrium sampler can adapt to sheath shells with bending requirements, the use is flexible and convenient, and the endometrium sampler can also be applied to other operation environments with smaller requirements on the size of sampling equipment.

Drawings

FIG. 1 is a schematic structural view of a core rod type endometrium sampler according to the present invention;

FIG. 2 is an exploded view of the core rod type endometrium sampler;

fig. 3 is an enlarged close-up view at a in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the core rod type endometrium sampler provided by the utility model comprises a holding guide member and a movable suction member, wherein the holding guide member is in a long strip shape, a holding cavity is arranged in the holding guide member, one end of the holding guide member is provided with a sample inlet, the other end of the holding guide member is provided with a plug port, the sample inlet and the plug port are respectively communicated with the holding cavity, the movable suction member is matched with the holding cavity in shape, can extend into the holding cavity through the plug port and move along the holding cavity, the holding cavity guides the moving process of the movable suction member, and negative pressure is formed in the holding cavity to ensure that endometrial tissue is sucked into the holding cavity through the sample inlet; the accommodating guide member is made of elastic materials, the size of the accommodating cavity is smaller than that of the movable suction member, and after the movable suction member extends into the accommodating cavity, the movable suction member and the accommodating guide member form interference fit, so that the contact surface of the movable suction member and the accommodating guide member is sealed. In this embodiment, the accommodating guide member includes an accommodating sleeve 100, the head of the accommodating sleeve is a closed structure, the outer wall of the accommodating sleeve is a cylindrical smooth surface, the accommodating cavity extends along the axial direction of the accommodating sleeve, the sample inlet 110 is opened in the side wall of the head of the accommodating sleeve, and the plug 120 is opened in the tail of the accommodating sleeve. The middle part of the sample inlet is sunken towards the inner side of the accommodating sleeve, and hook parts are formed at two ends of the sample inlet, so that endometrial tissues can easily enter the sample inlet. The outer wall of the head of the accommodating sleeve is a spherical or conical smooth surface, so that damage to the endometrium is avoided. A plurality of sample inlets are formed, and the sample inlets are arranged along the circumferential direction or the axial direction of the accommodating sleeve respectively. The mobile suction member comprises a suction core rod 200, the head outer wall of which is a spherical or conical smooth surface, avoiding scratching the side walls of the containment chamber. The tail of the suction core rod is provided with an operating handle 210, and the suction core rod can be driven by the operating handle to move in the accommodating cavity. A long waist hole 211 is arranged in the operating handle and extends along the axial direction of the core rod. The outer wall of the operating handle is provided with a positioning notch. The joint of the operating handle and the suction core rod is provided with a limiting part 220, the diameter of the limiting part is larger than that of the containing sleeve, and the insertion length of the suction core rod is limited by the limiting part. The suction core rod is made of metal or plastic, and the outer wall of the suction core rod is a cylindrical smooth surface. The outer wall of the head of the suction plunger is provided with a notification structure 230 to notify the operator that the suction plunger is not to be completely withdrawn from the receiving cavity. The core rod type endometrium sampler adopts the receiving sleeve to form interference fit with the suction core rod, the receiving cavity is used as a negative pressure forming structure and also used as an endometrium tissue receiving structure, when the suction core rod moves, the receiving cavity guides the suction core rod and forms negative pressure in the receiving cavity, so that the endometrium tissue is sucked into the receiving cavity through the sample inlet, the diameter of the endometrium tissue receiving cavity is smaller, the flexibility is better, the endometrium sampler can adapt to sheath shells with bending requirements, the use is flexible and convenient, and the endometrium sampler can also be applied to other operation environments with smaller requirements on the size of sampling equipment.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, orientations or positional relationships that are usually placed when the products of the present invention are used, or orientations or positional relationships that are usually understood by those skilled in the art, which are only used for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims (10)

1. A mandrel-type endometrial sampler comprising:

the accommodating guide member is long-strip-shaped, an accommodating cavity is formed in the accommodating guide member, one end of the accommodating guide member is provided with a sample inlet, the other end of the accommodating guide member is provided with a plug port, and the sample inlet and the plug port are respectively communicated with the accommodating cavity;

the movable suction component is matched with the accommodating cavity in shape, can extend into the accommodating cavity through the plug interface and moves along the accommodating cavity;

the method is characterized in that:

the accommodating guide member is made of elastic materials, the size of the accommodating cavity is smaller than that of the movable suction member, and the movable suction member extends into the accommodating cavity and forms interference fit with the accommodating guide member.

2. A mandrel-type endometrial sampler as claimed in claim 1, wherein the receiving guide member comprises:

the sleeve pipe is held, and this sheathed tube head that holds is enclosed construction, and its outer wall is cylindrical smooth surface, holds the cavity and follows the axial extension that holds the sheathed tube, and the introduction port is seted up in holding sheathed tube head lateral wall, and the interface is seted up in holding sheathed tube afterbody.

3. A mandrel-type endometrial sampler as claimed in claim 2, wherein:

the outer wall of the head of the containing sleeve is a spherical or conical smooth surface.

4. A mandrel-type endometrial sampler as claimed in claim 2, wherein:

a plurality of sample inlets are formed, and the sample inlets are arranged along the circumferential direction or the axial direction of the accommodating sleeve respectively.

5. A mandrel-type endometrial sampler as claimed in claim 2, wherein the moving pumping member comprises:

the outer wall of the head of the suction core rod is a spherical or conical smooth surface, so that the side wall of the accommodating cavity is prevented from being scratched.

6. A mandrel-type endometrial sampler as claimed in claim 5, wherein:

the tail part of the suction core rod is provided with an operating handle, and the suction core rod can be driven by the operating handle to move in the accommodating cavity.

7. A mandrel-type endometrial sampler as claimed in claim 6, wherein:

a long waist hole is arranged in the operating handle and extends along the axial direction of the core rod.

8. A mandrel-type endometrial sampler as claimed in claim 6, wherein:

the outer wall of the operating handle is provided with a positioning notch.

9. A mandrel-type endometrial sampler as claimed in claim 6, wherein:

the joint of the operating handle and the suction core rod is provided with a limiting part, the diameter of the limiting part is larger than that of the accommodating sleeve, and the insertion length of the suction core rod is limited by the limiting part.

10. A mandrel-type endometrial sampler as claimed in claim 5, wherein:

the suction core rod is made of metal or plastic, and the outer wall of the suction core rod is a cylindrical smooth surface.

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