Obstetrics and gynecology curettage

Abstract

The present invention discloses a gynecological and obstetric curettage, comprising a gripping rod and a scraping head, wherein the gripping rod has a proximal end and a distal end; the scraping head comprises a base and a plurality of scraping strips, wherein the base is connected to the proximal end of the gripping rod, and the plurality of scraping strips are arranged on the base at circumferential intervals around the axis of the gripping rod, and a central cavity is defined between the plurality of scraping strips, and a gap communicating with the central cavity is defined between two adjacent scraping strips; each scraping strip extends along the axis of the gripping rod in a direction away from the distal end, and the middle portion of each scraping strip protrudes radially outward from the gripping rod. The gynecological and obstetric curettage provided by the embodiment of the present invention is easy and convenient to operate and has high curettage efficiency.

Description

Technical Field

[0001] The present invention relates to obstetrics and gynecology instruments, in particular to a curettage for obstetrics and gynecology. Background Art

[0002] Curettage, also known as dilation and curettage, is the most commonly used method for early-stage induced abortions. While it doesn't require surgery, it's a gynecological procedure and must be performed under strict sterilization. The procedure involves two steps: first, dilating the cervix to a sufficient size; second, inserting a curette into the uterine cavity and scraping out the embryo.

[0003] The curette is an instrument used in curettage, comprising a handle and a scraping portion located at the proximal end of the handle. The scraping portion is spoon-shaped. The scraping operation of the scraping portion with such a structure is inconvenient and the curettage efficiency is low. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.To this end, the object of the present invention is to provide a gynecological and obstetric curettage.

[0005] To achieve the above-mentioned purpose, a gynecological curettage according to an embodiment of the present invention includes:

[0006] a gripping rod having a proximal end and a distal end;

[0007] A scraping head comprising a base and a plurality of scraping strips, wherein the base is connected to the proximal end of the holding rod, and the plurality of scraping strips are arranged on the base at circumferential intervals around the axis of the holding rod, and a central cavity is defined between the plurality of scraping strips, and a gap communicating with the central cavity is defined between two adjacent scraping strips; each scraping strip extends along the axis of the holding rod in a direction away from the distal end, and the middle portion of each scraping strip protrudes radially outward along the radial direction of the holding rod.

[0008] According to the gynecological and obstetric curettage provided by an embodiment of the present invention, the scraper head includes a base and a plurality of scraping strips, the base is connected to the proximal end of the holding rod, and the plurality of scraping strips are circumferentially spaced around the axis of the holding rod on the base, and a central cavity is defined between the plurality of scraping strips, and a gap communicating with the central cavity is defined between two adjacent scraping strips. In this way, since the plurality of scraping strips are circumferentially spaced, during the curettage operation, it is only necessary to rotate or swing the holding rod to make at least one of the plurality of scraping strips contact the embryo, thereby achieving the purpose of scraping, without having to judge the direction of the scraping strips. The operation is convenient and simple, and the curettage efficiency is high. Moreover, during the curettage process, a part of the scraped embryonic tissue can enter the central cavity through the gap, so that when the scraper head is withdrawn, the embryonic tissue can be taken out of the uterus, and the curettage effect is better. In addition, each scraper extends along the axis of the holding rod in a direction away from the distal end, and the middle part of each scraper protrudes radially outward along the holding rod. In this way, it can be ensured that when operating the holding rod, the middle part of the scraper on the scraper head is more likely to contact the embryo, making the curettage more reliable and more efficient.

[0009] In addition, the gynecological curettage according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, each of the scraping strips is twisted and deformed around the axis of the holding rod, so that the plurality of scraping strips form a spiral twisted shape.

[0011] According to one embodiment of the present invention, the cross section of each scraper strip is rectangular, and the radial outer side of each scraper strip has two opposite edges.

[0012] According to one embodiment of the present invention, the base is threadedly connected to the holding rod.

[0013] According to one embodiment of the present invention, a negative pressure straw is further included; the gripping rod is provided with a first axial hole, and the base is provided with a second axial hole communicating with the first axial hole;

[0014] The negative pressure suction pipe is inserted into the first axial hole and the second axial hole. The negative pressure suction pipe has a suction end and a connecting end. The suction end extends from the proximal end and then extends into the central cavity. The connecting end extends from the distal end for connection to a negative pressure device.

[0015] According to an embodiment of the present invention, the scraper strip is made of elastic metal.

[0016] According to one embodiment of the present invention, the gripping rod further comprises an outer sleeve, the outer sleeve being sleeved outside the gripping rod and being slidable between a first position and a second position along the axis of the gripping rod;

[0017] The outer sleeve has an active end adjacent to the proximal end. When the outer sleeve is located at the first position, the scraping head is forced to contract radially and is hidden in the active end. When the outer sleeve slides from the first position to the second position, the scraping head extends from the active end, and the multiple scraping heads recover their deformation radially and open.

[0018] According to one embodiment of the present invention, it further includes a limiting screw;

[0019] The outer sleeve is provided with a limiting hole, which extends along the axis direction of the outer sleeve. The holding rod is provided with a threaded hole, and the limiting screw passes through the limiting hole and is threadedly connected with the threaded hole.

[0020] According to one embodiment of the present invention, the distal end has a gripping portion for a user to grip, and the diameter of the gripping portion is larger than the diameter of the gripping rod.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of a gynecological and obstetric curettage apparatus according to an embodiment of the present invention;

[0024] Figure 2 2. It is a cross-sectional view of a curettage for obstetrics and gynecology according to an embodiment of the present invention;

[0025] Figure 3 This is an exploded view of a curettage for obstetrics and gynecology according to an embodiment of the present invention;

[0026] Figure 4 1. It is a schematic structural diagram of a scraper head in a gynecological and obstetric curettage device according to an embodiment of the present invention;

[0027] Figure 5 yes Figure 2 A partial enlarged view of point A in the middle.

[0028] Reference numerals:

[0029] Grip rod 10;

[0030] proximal D10;

[0031] distal D11;

[0032] a grip portion 101;

[0033] Scrape head 20;

[0034] Base 201;

[0035] scraper strip 202;

[0036] Edges 2021;

[0037] central cavity P20;

[0038] Negative pressure straw 30;

[0039] Suction end D30;

[0040] Connector D31;

[0041] outer sleeve 40;

[0042] Active end D40;

[0043] Limiting hole 401;

[0044] Limit screw 41.

[0045] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0046] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0049] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0051] The gynecological and obstetric curettage according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] Reference Figures 1 to 5 As shown, the gynecological curettage provided according to an embodiment of the present invention includes a gripping rod 10 and a scraping head 20.

[0053] Specifically, the gripping rod 10 has a proximal end D10 and a distal end D11 . The proximal end D10 refers to an end inserted into the human uterus when in use, and the distal end D11 refers to an end retained outside the human body when in use.

[0054] The scraping head 20 includes a base 201 and a plurality of scraping strips 202. The base 201 is connected to the proximal end D10 of the gripping rod 10. The scraping strips 202 are circumferentially spaced apart on the base 201 around the axis of the gripping rod 10. A central cavity P20 is defined between the scraping strips 202, and a gap communicating with the central cavity P20 is defined between adjacent scraping strips 202. Each scraping strip 202 extends along the axis of the gripping rod 10 away from the distal end D11, and the middle portion of each scraping strip 202 protrudes radially outward from the gripping rod 10.

[0055] That is to say, multiple scraper strips 202 are arranged on the base 201 at circumferential intervals, and each scraper strip 202 extends along the axial direction of the holding rod 10, and the middle part of each scraper strip 202 protrudes radially outward along the holding rod 10. In this way, the scraper head 20 formed by the circumferential arrangement of multiple scraper strips 202 increases and then decreases in diameter from one end to the other, that is, the scraper head 20 has a structure that expands in the middle and shrinks at both ends.

[0056] It should be noted that in the related art, the scraper includes a handle and a scraping part located at the proximal end of the handle, and the scraping part is spoon-shaped. The inventor found that when performing the scraping operation, it is necessary to judge the direction of the scraping part with this structure and keep the spoon-shaped scraping part perpendicular or inclined to the uterine wall. Since the scraping part is inside the uterus, it is not convenient to observe. Therefore, the scraping operation is extremely inconvenient and the scraping efficiency is low.

[0057] According to the gynecological and obstetric curettage provided by an embodiment of the present invention, the scraper head 20 includes a base 201 and a plurality of scraping strips 202. The base 201 is connected to the proximal end D10 of the holding rod 10. The plurality of scraping strips 202 are circumferentially spaced around the axis of the holding rod 10 on the base 201, and a central cavity P20 is defined between the plurality of scraping strips 202. A gap communicating with the central cavity P20 is defined between two adjacent scraping strips 202. In this way, since the plurality of scraping strips 202 are circumferentially spaced, during the curettage operation, it is only necessary to rotate or swing the holding rod 10 to make at least one of the plurality of scraping strips 202 contact the embryo, thereby achieving the purpose of scraping, without having to judge the direction of the scraping strips 202. The operation is convenient and simple, and the curettage efficiency is high. Moreover, during the curettage process, a portion of the scraped embryonic tissue can enter the central cavity P20 through the gap, so that when the scraper head 20 withdraws, the embryonic tissue can be taken out of the uterus, thereby achieving a better curettage effect. In addition, each scraper 202 extends along the axis of the holding rod 10 in a direction away from the distal end D11, and the middle part of each scraper 202 protrudes radially outward along the holding rod 10. In this way, it can be ensured that when operating the holding rod 10, the middle part of the scraper 202 on the scraper head 20 is more likely to contact the embryo, and the curettage is more reliable and more efficient.

[0058] Reference Figures 1 to 5 As shown, in some embodiments of the present invention, each of the scraping strips 202 is twisted and deformed around the axis of the gripping rod 10 , so that the plurality of scraping strips 202 form a spiral twisted shape.

[0059] Since each scraper 202 is twisted and deformed around the axis of the holding rod 10, the gap between two adjacent scrapers 202 can be made spirally twisted. In this way, when the holding rod 10 rotates or swings, the scraped embryonic tissue can smoothly enter the central cavity P20 along the spirally twisted gap. In other words, this spirally twisted gap is conducive to the embryonic tissue following the rotation or swinging of the scraping head 20 and moving into the central cavity P20, thereby making it easier for the embryonic tissue to enter the central cavity P20, thereby improving the scraping effect of the embryonic tissue.

[0060] Reference Figure 5 As shown, in one embodiment of the present invention, the cross section of each scraper strip 202 is rectangular, and each scraper strip 202 has two opposite edges 2021 on its radial outer side.

[0061] In this way, when the gripping rod 10 rotates or swings, at least one of the two opposite edges 2021 on the scraping strip 202 contacts the uterine wall, and then the embryonic tissue is smoothly scraped off by utilizing the movement of the edge 2021. In other words, utilizing the edge 2021 on the scraping strip 202 can improve the effect of scraping the embryonic tissue.

[0062] Advantageously, the base 201 is threadedly connected to the gripping rod 10, so that the base 201 and the gripping rod 10 can be disassembled. In specific applications, the scraping head 20 of different sizes can be replaced as needed to adapt to different patients or different curettage requirements.

[0063] Reference Figures 2 to 3 and Figure 5 As shown, in some embodiments of the present invention, a negative pressure straw 30 is further included; the gripping rod 10 is provided with a first axial hole, and the base 201 has a second axial hole communicating with the first axial hole.

[0064] The negative pressure suction tube 30 is inserted into the first axial hole and the second axial hole. The negative pressure suction tube 30 has a suction end D30 and a connecting end D31. The suction end D30 extends from the proximal end D10 and extends into the central cavity P20. The connecting end D31 extends from the distal end D11 for connection to a negative pressure device.

[0065] That is to say, the negative pressure straw 30 is located inside the holding rod 10 and extends along the axial direction of the holding rod 10. One end of the negative pressure adsorption is the suction end D30, which extends from the proximal end D10 of the holding rod 10 to the central cavity P20. The other end of the negative pressure straw 30 is the connecting end D31, which extends from the distal end D11 of the holding rod 10.

[0066] In a specific application, the connection end D31 is connected to the waste liquid bottle, and the waste liquid bottle is connected to the negative pressure equipment. The negative pressure suction tube 30 is sucked by the negative pressure equipment, so that negative pressure is generated in the negative pressure suction tube 30. The suction end D30 located in the central cavity P20 can suck the blood in the central cavity P20 and its surroundings, and then enter the waste liquid bottle through the negative pressure suction tube 30. In this way, the blood in the uterus can be sucked into the waste liquid bottle while the curettage operation is being performed.

[0067] Since uterine bleeding is usually accompanied during the curettage process, in this embodiment, the blood can be sucked and discharged into the waste liquid bottle through the negative pressure suction pipe 30 to achieve the purpose of cleaning the blood. Moreover, the setting of this negative pressure suction pipe 30 has a simple structure and does not affect the curettage operation. It can automatically clean the blood during the curettage operation, and is simple and convenient to use.

[0068] Advantageously, the scraping blade 202 is made of an elastic metal material. Due to its elasticity, when the doctor operates the handle 10 during curettage, the scraping blade 202 on the scraping head 20 contacts the uterine wall, providing a certain cushioning effect, thereby reducing the force applied to the uterine wall and alleviating damage to the uterus. Furthermore, it is easier for the doctor to control the force applied during the operation, making the operation more convenient for the doctor.

[0069] Reference Figures 1 to 3 and Figure 5 As shown, in some embodiments of the present invention, an outer sleeve 40 is further included. The outer sleeve 40 is sleeved outside the gripping rod 10 and is slidable between a first position and a second position along the axial direction of the gripping rod 10 .

[0070] The outer sleeve 40 has an active end D40 adjacent to the proximal end D10. When the outer sleeve 40 is located at the first position, the scraping head 20 is forced to shrink radially and is hidden in the active end D40. When the outer sleeve 40 slides from the first position to the second position, the scraping head 20 extends from the active end D40, and the multiple scraping heads 20 recover their deformation radially and open.

[0071] That is, the outer sleeve is disposed outside the gripping rod 10 and is capable of sliding between a first position and a second position. When the outer sleeve slides to the first position, since the inner diameter of the outer sleeve is smaller than the diameter of the scraping head 20, the outer sleeve generates a radially inward force on the scraping head 20 during its sliding action, forcing the scraping strips 202 of the scraping head 20 to radially converge and contract inward, ultimately causing the scraping head 20 to be hidden within the active end D40 of the outer sleeve. In this state, the proximal end D10 can be inserted toward the cervix, making it very convenient to insert the proximal end D10 into the uterus. During this process, since the scraping head 20 is hidden within the active end D40, the scraping strips 202 on the scraping head 20 will not cause damage to the cervix, thereby improving the safety and reliability of the scraper. After the proximal end D10 is inserted into the uterus, the outer sleeve is slid to the second position, at which point the scraping head 20 is disengaged from the active end D40, and the scraping strips 202 recover their deformation and open, returning to their natural shape. In this natural shape, it is convenient for the doctor to perform a curettage.

[0072] In this embodiment, the above-mentioned outer sleeve can facilitate the proximal end D10 to extend into the uterus and prevent the scraping head 20 from causing damage to the cervical cervix, and can also enable the scraping head 20 to restore its natural shape in the uterus, thereby facilitating the curettage operation. It is easy and simple to use.

[0073] Reference Figures 1 to 3 As shown, in one embodiment of the present invention, a limit screw 41 is further included; a limit hole 401 is provided on the outer sleeve 40, and the limit hole 401 extends along the axial direction of the outer sleeve 40, and a threaded hole is provided on the holding rod 10, and the limit screw 41 passes through the limit hole 401 and is threadedly connected to the threaded hole.

[0074] In this way, the outer sleeve 40 can be restricted to move between the first position and the second position by cooperating with the limiting screw 41 and the limiting hole 401 , which has a simple structure and reliable limiting.

[0075] Advantageously, the distal end D11 has a gripping portion 101 for a user to grip, and the diameter of the gripping portion 101 is larger than the diameter of the gripping rod 10 . Thus, when in use, the doctor can grip the gripping portion 101 for operation, which is convenient for use.

[0076] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A curettage for obstetrics and gynecology, characterized in that: include: a gripping rod having a proximal end and a distal end; A shaving head comprising a base and a plurality of scraping strips, the base being connected to the proximal end of the gripping rod, the plurality of scraping strips being circumferentially spaced apart on the base around the axis of the gripping rod, the plurality of scraping strips defining a central cavity therebetween, and a gap communicating with the central cavity being defined between adjacent two scraping strips; each scraping strip extending along the axis of the gripping rod in a direction away from the distal end, and a middle portion of each scraping strip protruding radially outwardly along the gripping rod; Each of the scraping strips is twisted and deformed around the axis of the gripping rod, so that the plurality of scraping strips form a spiral twisted shape; The cross section of each scraper strip is rectangular, and the radial outer side of each scraper strip has two opposite edges; It also includes a negative pressure straw; the gripping rod is provided with a first axial hole, and the base has a second axial hole communicating with the first axial hole; The negative pressure suction pipe is inserted into the first axial hole and the second axial hole, and has a suction end and a connecting end. The suction end extends from the proximal end and then extends into the central cavity. The connecting end extends from the distal end to be connected to the negative pressure device. The scraper strip is made of elastic metal; The outer sleeve is sleeved outside the gripping rod and is slidable along the axis of the gripping rod between a first position and a second position; The outer sleeve has an active end adjacent to the proximal end. When the outer sleeve is located at the first position, the scraping head is forced to contract radially and is hidden in the active end. When the outer sleeve slides from the first position to the second position, the scraping head extends from the active end, and the multiple scraping heads recover their deformation radially and open.

2. The gynecological curettage according to claim 1, characterized in that: The base is threadedly connected to the holding rod.

3. The gynecological curettage according to claim 1, characterized in that: Also included are limit screws; The outer sleeve is provided with a limiting hole, which extends along the axis direction of the outer sleeve. The holding rod is provided with a threaded hole, and the limiting screw passes through the limiting hole and is threadedly connected with the threaded hole.

4. The gynecological curettage according to claim 1, characterized in that: The distal end is provided with a gripping portion for a user to grip, and the diameter of the gripping portion is larger than the diameter of the gripping rod.

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