Endometrial sampler

Abstract

The utility model discloses an endometrium sampler, which comprises an inner core tube, which comprises a tube body with a hollow inner cavity, a ball head arranged at the far-hand end of the tube body, a bristle part arranged on the outer side wall of the far-hand part of the tube body, and at least one liquid circulation hole communicated with the hollow inner cavity; the outer pipe is arranged on the outer layer of the inner core pipe in a sleeving mode and suitable for moving in the axial direction of the inner core pipe; and the pipe joint is connected with the near-hand part of the pipe body so as to realize communication between the pipe joint and the hollow inner cavity. According to the endometrium sampler, the flexibility of the endometrium sampler in the using process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an endometrial sampler. Background Art

[0002] Gynecology is one of the four major clinical disciplines, mainly studying the etiology, pathology, diagnosis, prevention and treatment of diseases of female reproductive organs; the physiological and pathological changes of pregnancy and childbirth, the prevention and treatment of high-risk pregnancy and dystocia, female endocrinology, family planning and women's health care, etc. The in-depth research of medical basic theories such as modern molecular biology, oncology, genetics, reproductive endocrinology and immunology, and the progress of clinical medical diagnosis and treatment detection technologies have broadened and deepened the development of obstetrics and gynecology, playing an important role in protecting women's physical and reproductive health and preventing and treating various obstetrics and gynecology diseases.

[0003] During clinical gynecological examinations such as cervical lesion examinations and HPV virus examinations, an endometrial sampler is required. At present, most endometrial samplings are carried out in the clinical departments of medical institutions. The medical devices used are mostly simple cervical cell collectors, which are composed of a brush head and a thin rod brush handle. The brush head and the brush rod can rotate synchronously and are detachable. For example, a cervical canal sampler disclosed in the patent with the publication number CN209826797U. Through actual use and research, it is found that for a cervix that may have lesions, there will be a lot of secretions attached to the cervical surface. The presence of secretions will directly affect the sampling results. For a sampler with the above structure, it is difficult to clean the secretions on the cervical surface. In this regard, for example, a cervical brush for facilitating sampling and drug administration disclosed in the patent with the publication number CN211560174U stores clear water, liquid medicine, etc. in the inner tube, which is convenient for cleaning and drug administration during the sampling process. However, in this process, since the clear water or liquid medicine is directly stored in the inner tube and there is a drug application port at the far end of the inner tube for outflow, when the overall sampler is inserted from the vagina to the cervix, the following problems exist:

[0004] First, it is difficult to avoid the problem of overflow of the clear water or liquid medicine in the inner tube before reaching the cervix.

[0005] Second, for clear water sprayed onto the cervical orifice through the inner tube, it is difficult to recover. There may be a liquid mixed with secretions at the cervical orifice due to the spraying of clear water, which is difficult to discharge. If it directly flows out along the vagina, it is not only inconvenient to operate, but also may cause contamination.

[0006] Third, since the clear water or liquid medicine is pre-loaded into the inner tube, considering different patient conditions, it may be necessary to apply drugs after cleaning and sampling. At this time, the above inner tube can only be used for cleaning or drug application in actual use, and cannot meet the usage requirements of both cleaning and drug application at the same time.

[0007] Therefore, for the different types of endometrial samplers used in the current existing technologies, considering the problems existing in their actual use process, it is necessary to further optimize their structures. Summary of the Invention

[0008] The purpose of the present invention is to provide an endometrial sampler to solve the technical problem of optimizing its overall performance in use.

[0009] The endometrial sampler of the present invention is implemented as follows:

[0010] An endometrial sampler includes:

[0011] An inner core tube, which includes a tube body having a hollow inner cavity, a ball head provided at the distal end of the tube body, a brush portion provided on the outer side wall of the distal portion of the tube body, and at least one liquid flow hole communicating with the hollow inner cavity;

[0012] An outer tube, which is sleeved on the outer layer of the inner core tube and is adapted to move axially along the inner core tube;

[0013] A tube joint, which is connected to the proximal portion of the tube body to achieve the connection between the tube joint and the hollow inner cavity.

[0014] In an optional embodiment of the present invention, the distal end of the outer tube is an opening;

[0015] The ball head, the sampling brush and at least one liquid flow hole of the inner core tube are adapted to extend outside the opening at the distal end of the outer tube.

[0016] In an optional embodiment of the present invention, the tube joint is connected to the side wall of the proximal portion of the tube body; and

[0017] A strip-shaped notch adapted for the tube joint to pass through is provided on the side wall of the proximal portion of the outer tube; and

[0018] When the outer tube moves axially relative to the inner core tube, the tube joint moves in the strip-shaped notch.

[0019] In an optional embodiment of the present invention, at least one of the liquid flow holes is provided on the ball head.

[0020] In an optional embodiment of the present invention, at least one of the liquid flow holes is provided on the distal portion of the tube body, and each of the liquid flow holes is located on the side end of the brush portion facing away from the ball head.

[0021] In an optional embodiment of the present invention, the hollow inner cavity of the tube body is divided into multiple sub-cavities; wherein

[0022] One sub-cavity is used to connect the brush portion; the distal ends of the other sub-cavities are designed as openings to form liquid flow holes.

[0023] In an alternative embodiment of the present utility model, liquid through holes are formed on the axial side walls of the distal part of the tube body corresponding to each sub-cavity.

[0024] In an alternative embodiment of the present utility model, the brush part is in the shape of a columnar structure or a conical structure.

[0025] In an alternative embodiment of the present utility model, a crease is further provided between the side end of the brush part facing away from the ball head and the tube body.

[0026] In an alternative embodiment of the present utility model, the brush part includes brushes distributed around the tube body for one full rotation;

[0027] The direction of each brush facing away from the ball head forms an acute angle structure with the tube body.

[0028] Adopting the above technical solutions, the present utility model has the following beneficial effects: For the endometrial sampler of the present utility model, firstly, the brush part on the outer side wall of the distal part of the tube body facilitates the sampling operation of the endometrium. Secondly, through the liquid circulation holes provided on the outer side wall of the distal part of the tube body and in combination with the tube connector connected to the tube body, at this time the tube connector is connected to the syringe tube, which can not only achieve the aspiration of the secretions on the cervical surface, but also perform the flushing of the cervix with clear water, and after the clear water flushing is completed, the liquid mixed with the secretions can be drawn out, and drug administration treatment can also be carried out on the cervix. The overall operation can be flexibly handled according to the conditions of different patients, so the flexibility of using the endometrial sampler is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Structural schematic diagram of the tube connector of the endometrial sampler of the present utility model corresponding to one embodiment;

[0030] Figure 2 Structural schematic diagram of the tube connector of the endometrial sampler of the present utility model corresponding to another embodiment;

[0031] Figure 3 For Figure 2 Enlarged view of part A;

[0032] Figure 4 For Figure 2 Enlarged view of part B;

[0033] Figure 5 For Figure 2 Enlarged view when a crease is designed at part A;

[0034] Figure 6 Structural schematic diagram of the brush head part of the endometrial sampler of the present utility model in one embodiment;

[0035] Figure 7 Schematic diagram of the brush head part of the endometrial sampler of the present utility model under another embodiment;

[0036] Figure 8 Schematic diagram of the tube body 31 of the endometrial sampler of the present utility model under another embodiment.

[0037] In the figure: outer tube 1, strip-shaped notch 11, tube joint 2, tube body 31, sub-cavity 311, liquid through-hole 312, ball head 32, liquid circulation hole 33, brush hair part 34, brush 341, hand-held part 4, crease 5. Specific embodiments

[0038] In order to make the content of the present utility model easier to be clearly understood, the following further elaborates the present utility model in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0039] Embodiment 1: Please refer to Figure 1 , Figure 3 , Figures 5 to 8 As shown, this embodiment provides an endometrial sampler, including: an inner core tube, an outer tube 1 provided on the outer layer of the inner core tube, and a tube joint 2 connected to the inner core tube.

[0040] It should be noted that in this embodiment, from a perspective in the actual use process of this endometrial sampler, the "proximal hand end" refers to the end of the sampler close to the hand operating the instrument, and the "proximal hand part" refers to the part of the sampler close to the hand operating the instrument, and this part can be a structural body with a certain length; the "distal hand end" refers to the end of the sampler far from the hand operating the instrument, and the "distal hand part" refers to the part of the sampler far from the hand operating the instrument, and this part can be a structural body with a certain length.

[0041] Next, specifically, first is the inner core tube, which includes a tube body 31 with a hollow inner cavity, a ball head 32 provided at the distal hand end of the tube body 31, and a brush hair part 34 and at least one liquid circulation hole 33 provided on the outer side wall of the distal hand part of the tube body 31. The ball head 32 and the brush hair part 34 can be integrally processed and then fixed to the tube body.

[0042] Furthermore, optionally here, this embodiment is designed with three liquid circulation holes 33. In the first optional implementation case, it can be directly provided on the ball head 32. At this time, the ball head 32 has a central cavity communicating with the hollow inner cavity of the tube body 31.

[0043] In the second optional implementation case, these three liquid circulation holes 33 are designed on the distal part of the tube body 31, and each liquid circulation hole 33 is located at one side end of the brush part 34 facing away from the ball head 32. At this time, the ball head 32 can have a central cavity communicating with the hollow inner cavity of the tube body 31. Of course, the ball head 32 can also be a solid body, which is not connected to the hollow inner cavity of the tube body 31. For this case, it is necessary to explain that in order to facilitate the tube body 31 part with the liquid circulation holes 33 and the tube body 3 part with the brush part 34 to conveniently enter and exit the outer tube 1, the outer diameter of the tube body 31 part of the tube body 31 with the brush part 24 is smaller than the outer diameter of the tube body 31 part with the liquid circulation holes 33.

[0044] On the basis of the above structure, it is also necessary to explain that for the second case where the liquid circulation holes 33 are designed on the distal part of the tube body 31, it can actually include the following two cases:

[0045] The first one is to directly open a hole communicating with the hollow inner cavity of the tube body 31 on the axial side wall of the tube body 31 to form the liquid circulation hole 33, such as the Figure 3 shown structure.

[0046] The second one is to divide the hollow inner cavity of the tube body 31 into multiple sub-cavities 311. One of the sub-cavities 311 is used to connect the brush part 34, and the distal hand ends of the other sub-cavities 311 are designed to be open to form the liquid circulation holes 33. Such as the Figure 8 shown structure. At this time, considering that during the actual sampling process, human tissues or mucus may adhere to the liquid circulation holes 33, resulting in poor smoothness of the use of the liquid circulation holes 33. Liquid through holes 312 can also be opened on the axial side walls of the tube body 31 corresponding to the distal parts of each sub-cavity 311. In such a structure, the cooperation of the liquid through holes 312 and the liquid circulation holes 33 ensures the smooth progress of the liquid extraction, cleaning, or drug administration operations. Therefore, the design position and form of the liquid circulation holes 33 in this embodiment are not absolutely limited. As long as the liquid can flow between the proximal end and the distal end of the endometrial sampler in this embodiment, it meets the usage requirements of this embodiment.

[0047] It should be noted that for the ball head 32 used in this embodiment, it can be a spherical structure body, an ellipsoidal structure body, or an inverted water droplet shape, so as to avoid the tip from damaging the cervical mucosa during the process of inserting the swab into the cervical canal.

[0048] Regarding the brush part 34 used in this embodiment:

[0049] In terms of the general shape of the bristle portion 34, it can be a columnar structure or a conical structure. For the columnar structure here, the outer diameter surface of the bristle portion 34 is a uniformly cylindrical outer diameter surface, while for the conical structure, the outer diameter surface of the bristle portion 34 is a conical outer diameter surface, and at this time, the outer diameter surface of the bristle portion 34 has a structure that gradually becomes larger from the distal end to the proximal end.

[0050] Regarding the specific structure of the specific bristle portion 34, taking an optional factual situation as an example with reference to the attached drawings, the bristle portion 34 includes a brush 341 distributed around the tube body 31 for one full rotation; the direction of each brush 341 facing away from the ball head 32 forms an acute angle structure with the tube body 31. The range of this acute angle structure is from 30° to 90°. The angled brush 341 facilitates the instrument to penetrate deep into the cervix, and when taking it out, it can increase a certain amount of friction, facilitating the acquisition of tissue cells in the cervix.

[0051] In addition, it should also be noted that a crease 5 is provided between the side end of the bristle portion 34 facing away from the ball head 32 and the tube body 31. The design of this crease 5 facilitates breaking the bristle portion 34 relative to the tube body 31 and placing it in the preservation liquid for preservation.

[0052] Next, let's talk about the outer tube 1 and the tube connector 2: The outer tube 1 is adapted to move axially along the tube body 31. The tube connector 2 is connected to the proximal portion of the tube body 31 to achieve the communication of the hollow inner cavity of the tube connector 2 and the tube body 31.

[0053] The distal end of the outer tube 1 is open; the ball head 32 of the inner core tube, the sampling brush, and at least one liquid flow hole 33 are adapted to extend outside the opening at the distal end of the outer tube 1. And when the outer tube 1 moves axially along the tube body 31 towards the distal end side, the sampling brush and each liquid flow hole 33 are received into the outer tube 1.

[0054] In addition, in order to prevent the design of the tube connector 2 from affecting the axial movement of the outer tube 1 relative to the tube body 31, a handheld portion 4 is provided at the proximal end of the tube body 31 to facilitate the hand to hold the handheld portion 4 for operating the instrument. In this structure, only one hand needs to hold the handheld portion 4, and the other hand can push the outer tube to make the outer tube 1 move axially relative to the tube body 31. In this structure, the handheld portion 4 can optionally be a tubular body with a hollow cavity and communicating with the hollow cavity of the tube body 31. Thus, for the tube connector 2, it only needs to be directly connected to the hollow cavity of the handheld portion 4, and the liquid can be circulated through the hollow cavity of the handheld portion 4 and the hollow cavity of the tube body 31. Here, the tube connector 2 can also directly penetrate the hollow cavity of the handheld portion 4 to communicate with the hollow cavity of the tube body 31, and this embodiment does not make an absolute limitation on this.

[0055] Finally, regarding the material, taking an optional implementation as an example, the inner core tube, the outer tube 1, and the ball head 32 can all be made of medical polystyrene material. This material is extremely easy to shape, is a hydrophilic polymer compound, and is transparent throughout. When operating in the vagina with limited vision, it greatly improves visibility. Taking another optional implementation as an example, the material of the outer tube 1 is PP, which has a soft texture and good patient comfort, and is conducive to improving the sampling success rate; the material of the inner core tube is hard PE. When sampling, the brush part 34 needs to exert a certain force on the cervical canal, and this force needs to be applied at the other end of the inner core tube. In order to ensure the transmission of force, hard plastic is used.

[0056] In summary, for the endometrial sampler of this embodiment, its specific implementation principle is as follows:

[0057] In the initial state, the brush part 34 is retracted into the outer tube 1. Then the instrument is gradually inserted from the vagina into the uterus until the ball head 32 is flush with the uterine fundus, indicating that the instrument is in place. At this time, the outer tube 1 is pulled so that the liquid flow hole 33 and the brush part 34 both extend and are exposed outside the outer tube 1. Based on this situation, according to the actual situation in the cervix, when there is a lot of cervical surface secretion, the suction tube is connected to the tube connector 2 to facilitate the suction of the cervical surface secretion. Or the clear water can be first introduced into the inner core tube through the suction tube to wash the cervical surface secretion, and after the washing is completed, the liquid mixed with the secretion is then suctioned. After cleaning the cervical surface, the tube connector 2 is rotated so that the tube body 31 can drive the brush part 34 to rotate in the cervix, thereby fully obtaining the endometrial tissue. After completing the sampling of the endometrial tissue, the outer tube 1 is pushed towards the distal end direction, so that the brush part 34 stained with the endometrial tissue can enter the outer tube 1 again, thereby providing external protection for the endometrial tissue on the brush part 34.

[0058] Embodiment 2: Please refer to Figure 2 and Figure 4 As shown, on the basis of the endometrial sampler of Embodiment 1, the endometrial sampler improved in this embodiment has substantially the same structure as that of Embodiment 1, except for the mating structure of the tube connector 2 with the tube body 31 and the outer tube 1 in this embodiment.

[0059] Specifically, the tube connector 2 is connected to the axial side wall of the proximal part of the tube body 31; and a strip-shaped notch 11 suitable for the tube connector 2 to pass through is provided on the axial side wall of the proximal part of the outer tube 1; and when the outer tube 1 moves axially relative to the tube body 31, the tube connector 2 moves in the strip-shaped notch 11.

[0060] In summary, for the endometrial sampler of this embodiment, one hand holds the handheld part 4, and the other hand can meet the usage requirements by pushing the outer tube 1 to adjust the process of the brush part 34 entering and exiting the outer tube 1. During this process, the connecting part of the pipe joint 2 and the pipe body 31 is exactly always in the strip-shaped notch 11, that is to say, the connecting part of the pipe joint 2 and the pipe body 31 will not interfere with the normal axial movement of the outer tube 1 relative to the pipe body 31.

[0061] In the above specific embodiments, the purpose, technical solution and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0062] In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0063] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0064] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present invention is usually placed during use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0065] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0066] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

Claims

1. An endometrial sampler, characterized in that, Comprising: An inner core tube, which includes a tube body having a hollow inner cavity, a ball head provided at the distal end of the tube body, a brush portion provided on the outer side wall of the distal portion of the tube body, and at least one liquid circulation hole communicating with the hollow inner cavity; An outer tube, which is sleeved on the outer layer of the inner core tube and is adapted to move axially along the inner core tube; A pipe joint, which is connected to the proximal portion of the tube body to achieve the communication between the pipe joint and the hollow inner cavity.

2. The endometrial sampler according to claim 1, characterized in that, The distal end of the outer tube is an opening; The ball head, the sampling brush, and at least one liquid circulation hole of the inner core tube are adapted to extend outside the opening of the distal end of the outer tube.

3. The endometrial sampler according to claim 2, wherein The pipe joint is connected to the side wall of the proximal portion of the tube body; and A strip-shaped notch adapted for the pipe joint to pass through is provided on the side wall of the proximal portion of the outer tube; and When the outer tube moves axially relative to the inner core tube, the pipe joint moves in the strip-shaped notch.

4. The endometrial sampler according to any one of claims 1 to 3, characterized in that, At least one of the liquid circulation holes is provided on the ball head.

5. The endometrial sampler according to any one of claims 1 to 3, characterized in that, At least one of the liquid circulation holes is provided on the distal portion of the tube body, and each of the liquid circulation holes is located at a side end of the brush portion facing away from the ball head.

6. The endometrial sampler according to any one of claims 1 to 3, characterized in that, The hollow inner cavity of the tube body is partitioned into a plurality of sub-cavities; wherein One sub-cavity is used to connect the brush portion; the distal ends of the other sub-cavities are designed as openings to form liquid circulation holes.

7. The endometrial sampler according to claim 6, characterized in that, Liquid through holes are provided on the axial side walls of the distal portions of the tube body corresponding to each sub-cavity.

8. The endometrial sampler according to claim 1, wherein, The brush portion is in the shape of a columnar structure or a conical structure.

9. The endometrial sampler according to claim 1 or 8, characterized in that, A crease is further provided between the side end of the brush portion facing away from the ball head and the tube body.

10. The endometrial sampler according to claim 1 or 8, characterized in that, The brush portion includes brushes distributed around the tube body for one full rotation; The direction of each brush facing away from the ball head forms an acute angle structure with the tube body.

Images