Single-cavity oocyte collector with auxiliary device

Abstract

The invention discloses a single-cavity oocyte collector with an auxiliary device. The single-cavity oocyte collector comprises an oocyte collecting needle, and the oocyte collecting needle penetrates through an outer sheath and can be adjusted relative to the outer sheath; a plurality of grasping forceps are arranged at one end of the outer sheath in a hinged mode and evenly distributed in the circumferential direction of the outer sheath, two handles hinged in a shear mode are arranged at the other end of the outer sheath, the top of one handle is connected with the outer sheath, and the top of the other handle is adjustably connected with a driving plate. The driving plate is connected with the end of the connecting plate, the connecting plate penetrates through the outer sheath, and the end of the connecting plate is connected with the grasping forceps. A plurality of grasping forceps are arranged at one end of the outer sheath, the handle is arranged at the other end of the outer sheath, and meanwhile, the grasping forceps are connected with the handle under the condition that the grasping forceps are hinged to the outer sheath, so that the state of the grasping forceps can be adjusted when a medical worker operates the handle, and support is provided for grasping ovarian tissue and fixing the ovarian tissue through the grasping forceps; and convenience is provided for reducing the probability of organ injury caused by misoperation of the egg taking needle.

Description

Technical Field

[0001] The invention relates to the field of egg retrieval equipment, in particular to a single-chamber oocyte collector with an auxiliary device. Background Art

[0002] When women's eggs and sperm cannot meet and fertilize due to problems such as blocked fallopian tubes or adhesions, in vitro fertilization-embryo transfer (IVF-ET) technology plays a key role. IVF-ET technology requires removing eggs from the ovaries, combining eggs and sperm in vitro, and then transplanting the embryos back into the uterus, bypassing the fallopian tubes. For example, for women whose fallopian tubes are damaged due to diseases such as pelvic inflammatory disease, this technology opens the door to fertility for them.

[0003] When performing the egg retrieval operation, it is necessary to use devices such as an ultrasound probe, a puncture needle, and a negative pressure suction device. The ultrasound probe clearly displays the location of the ovaries, the size and number of follicles, and other information through ultrasound imaging. The puncture needle is used to puncture the follicles through the vagina under ultrasound guidance and to absorb the eggs. The negative pressure suction device is connected to the puncture needle and generates appropriate negative pressure to suck out the fluid in the follicles together with the eggs.

[0004] At present, the prior art discloses the structure of the puncture needle, such as a puncture needle of an oocyte collector disclosed in a Chinese patent with publication number CN102860859B, which includes a needle tube, a needle tip formed on the front end surface of the needle tube, and an ultrasonic identification pattern formed on the front end outer wall of the needle tube, wherein the ultrasonic identification pattern is composed of a plurality of annular grooves arranged in sequence and parallel to each other along the central axis of the needle tube; a chamfer is formed between the front end outer wall and the front end surface of the needle tube, and the chamfer is located on both sides of the needle tip. The above-mentioned ultrasonic identification pattern structure and needle tip structure are used to ensure the sharpness of the needle tip when repeatedly puncturing the follicle wall to retrieve eggs, and there will be no problems of blunting, deformation or barbs; and the resistance of the needle tip when puncturing the follicle wall to retrieve eggs is minimized to the greatest extent, tissue trauma is minimized, the patient's pain is reduced, and even bleeding at the puncture site can be well avoided.

[0005] Whether the puncture needle disclosed in the above patent or other types of puncture needles are used for egg retrieval, that is, when the puncture needle is used to puncture the follicle, it is very easy to puncture the ovary due to improper operation, damage the abdominal organs, and cause unnecessary damage. Summary of the invention

[0006] The purpose of the present invention is to provide a single-chamber oocyte collector with an auxiliary device, aiming to improve the problem that the puncture needle is prone to cause damage when puncturing the follicle.

[0007] The present invention is implemented as follows: a single-chamber oocyte collector with an auxiliary device includes an egg retrieval needle, which is arranged through an outer sheath and can be adjusted relative to the outer sheath; a grasping forceps is hingedly arranged at one end of the outer sheath, and a plurality of grasping forceps are evenly distributed along the circumferential direction of the outer sheath; two handles hinged in a scissor-like manner are arranged at the other end of the outer sheath, the top of one handle is connected to the outer sheath, and the top of the other handle is adjustably connected to a driving plate, the driving plate is connected to the end of a connecting plate, the connecting plate is arranged through the outer sheath, and the end is connected to the grasping forceps.

[0008] Preferably, a plurality of notches are provided at the end of the outer sheath, and the number of the notches is equal to the number of the grasping forceps; an end plate is fixedly provided at the end of the grasping forceps, and the end plate is connected and arranged in the notch through a coupling.

[0009] Preferably, a plurality of tooth grooves are provided at the end of the end plate, and gears are meshedly provided on the sides of the tooth grooves, and the gears are connected and arranged in the notch through a coupling shaft.

[0010] Preferably, a rack is meshingly connected below the gear, a plurality of through holes are provided in the side wall of the outer sheath, the number of the through holes is equal to the number of the notches, and the through holes are connected to the notches, and the rack is movably arranged in the through holes.

[0011] Preferably, a movable hole is provided at one end of the through hole away from the grasping forceps, and a connecting plate is arranged in the through hole, one end of which is connected to the rack and the other end of which extends into the movable hole.

[0012] Preferably, an intermediate plate is detachably provided at the end of the connecting plate extending into the movable hole, the end of the intermediate plate protrudes out of the movable hole and is provided with a groove; two driving plates are provided, the two driving plates are connected by bolts and are sleeved on the outer sheath; a convex plate is provided on the inner side wall of the driving plate, and the convex plate passes through the groove.

[0013] Preferably, a walking board is fixedly provided on the side of a driving plate, a sliding hole is provided on the walking board, and the sliding hole is arranged along the length direction of the walking board; a convex rod is provided on the top of the handle, and the convex rod passes through the sliding hole.

[0014] Preferably, an elastic plate is provided below the outer sheath, the elastic plate is located between the two handles, and two ends of the elastic plate are respectively connected to the two handles.

[0015] Preferably, a through hole is provided on the outer sheath, a hole communicating with the outer sheath is formed between the plurality of grasping forceps, and the egg retrieval needle passes through the outer sheath and the holes of the plurality of grasping forceps.

[0016] Preferably, one end of the egg retrieval needle is arranged as a needle head, and the other end is arranged as a second end tube, the ends of the second end tube are connected with two through tubes, and a screw button groove is arranged on the outer wall; a first end tube is arranged at the end of the outer sheath, and a screw button column is fixedly arranged on the inner wall of the first end tube, and the screw button column is installed in the screw button groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a plurality of grasping forceps at one end of the outer sheath, and a handle at the other end. The grasping forceps are connected to the handle while being hingedly connected to the outer sheath. The state of the grasping forceps can be adjusted when the medical staff operates the handle, so as to provide support for grasping ovarian tissue with the grasping forceps and fixing it, and provide convenience for reducing the probability of organ damage caused by operating errors of the egg retrieval needle.

[0019] 2. In the present invention, a gear is provided on the side of the grasping forceps for meshing connection, and a rack is provided on the side of the gear for meshing connection. At the same time, the rack is connected to a driving plate through a connecting plate, and the driving plate is connected to a handle. Therefore, when the two handles change the opening and closing angles, the driving plate can be controlled to move along the length direction of the outer sheath, thereby realizing the adjustment of the grasping forceps state.

[0020] 3. The present invention is provided with a screw-button groove and a screw-button column, which can realize a stable connection between the egg retrieval needle and the outer sheath during the process of inserting the egg retrieval needle into the outer sheath, and limit the movement of the egg retrieval needle when the follicle is punctured, thereby reducing the probability of damaging other organs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first structural schematic diagram of the present invention as a whole;

[0022] Figure 2 It is a second structural schematic diagram of the present invention as a whole;

[0023] Figure 3 It is a schematic diagram of the structure of the egg retrieval needle of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the outer sheath, grasping forceps and handle of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the outer sheath of the present invention;

[0026] Figure 6 is a schematic cross-sectional view of the outer sheath of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the grasping forceps and the handle of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the grasping forceps of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the driving plate of the present invention.

[0030] In the figure: 1, outer sheath; 11, notch; 12, through hole; 13, first end tube; 14, screw-on column; 15, moving hole; 2, egg retrieval needle; 21, needle head; 22, second end tube; 23, screw-on groove; 24, two-way tube; 3, grasping forceps; 31, concave and convex groove; 32, end plate; 33, tooth groove; 34, gear; 35, rack; 4, handle; 41, elastic plate; 42, driving plate; 43, middle plate; 44, convex plate; 45, walking plate; 46, sliding hole; 5, connecting plate. DETAILED DESCRIPTION

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0033] Example 1

[0034] like Figure 1 , Figure 2 As shown, in order to reduce the damage to human organs during the egg retrieval operation, the present embodiment provides an auxiliary device for the oocyte collector (i.e., the egg retrieval needle 2), which includes an outer sheath 1, a grasping forceps 3, a handle 4, etc., wherein the grasping forceps 3 are provided with a plurality of grasping forceps and are evenly distributed along the circumferential direction of the outer sheath 1, and the handle 4 is provided at the other end of the outer sheath 1, and the grasping forceps 3 can be operated and controlled by medical personnel to rotate around the axis, thereby adjusting the state of the plurality of grasping forceps 3, so as to grasp the ovarian tissue under the action of the grasping forceps 3 and fix it. Then, the egg retrieval needle 2 is arranged through the outer sheath 1, and the end protrudes from the outer sheath 1, puncturing the follicle at the same time, and the other end is connected to the egg retrieval test tube port and the negative pressure aspirator port, so that the liquid and egg in the follicle can be controlled to move out of the body under the operation of the negative pressure aspirator. Because the position of the ovarian tissue is limited under the action of the grasping forceps 3, and the egg retrieval needle 2 is stably installed relative to the outer sheath 1, the probability of organ damage caused by operating errors of the egg retrieval needle 2 can be reduced.

[0035] like Figure 8 As shown, in order to enable the grasping forceps 3 to clamp the ovarian component more stably, a concave-convex groove 31 can be provided on the side wall of the grasping forceps 3, that is, the side wall of the grasping forceps 3 is provided with a concave-convex structure, so that the ovarian component can be stably placed relative to the grasping forceps 3.

[0036] like Figure 5-8As shown, in order to stably mount the grasping forceps 3 on the outer sheath 1, a plurality of notches 11 are provided at the end of the outer sheath 1, at least three notches 11 are provided, and four notches 11 may be provided, and the number of notches 11 is equal to the number of the grasping forceps 3. An end plate 32 is fixedly provided at the end of the grasping forceps 3, and the end plate 32 is arranged in the notch 11 through a shaft connection, so that the grasping forceps 3 is hingedly connected to the outer sheath 1, which facilitates the control of the grasping forceps 3 rotating around the axis to adjust its inclination angle relative to the outer sheath 1.

[0037] like Figure 5-8 As shown, in order to control the grasping forceps 3 to rotate around the axis, a plurality of tooth grooves 33 are provided at the end of the end plate 32, and a gear 34 is meshed with the side of the tooth groove 33. The gear 34 is arranged in the notch 11 through a coupling connection, and a rack 35 is meshed and connected below the gear 34. Therefore, when the rack 35 is moved by an external force, the gear 34 can be driven to rotate, thereby controlling the end plate 32 and the grasping forceps 3 to rotate around the axis, thereby realizing the adjustment of the state of the grasping forceps 3.

[0038] like Figure 5-8 As shown, in order to stably install the rack 35 on the outer sheath 1 and realize power transmission, a connecting plate 5 is provided at the end of the rack 35. A plurality of through holes 12 are provided in the side wall of the outer sheath 1, the number of the through holes 12 is equal to the number of the notches 11, and the through holes 12 are connected to the notches 11, and the rack 35 and the connecting plate 5 are movably arranged in the through holes 12, so as to realize the stable installation of the rack 35 and the connecting plate 5, and at the same time, the installation of the egg retrieval needle 2 is not affected.

[0039] like Fig. 9 As shown, in order to control the movement of the rack 35 and the connecting plate 5, a moving hole 15 is provided at one end of the through hole 12 away from the grasping forceps 3, and an intermediate plate 43 is detachably provided at the end of the connecting plate 5 extending into the moving hole 15 and connected by bolts, and the end of the intermediate plate 43 protrudes out of the moving hole 15 and is provided with a groove. Two driving plates 42 are provided on the outside of the outer sheath 1, and the two driving plates 42 are connected by bolts and sleeved on the outer sheath 1. A convex plate 44 is provided on the inner side wall of the driving plate 42, and the convex plate 44 is provided through the groove. Therefore, in the process of moving the driving plate 42, the convex plate 44 and the groove can drive the movement of multiple connecting plates 5, thereby controlling the movement of the rack 35 to achieve the adjustment of the state of the grasping forceps 3.

[0040] like Figure 4 , Figure 7As shown, in order to force the driving plate 42 to move, two handles 4 are provided, and the two handles 4 are hinged in a scissor-like manner. The top of one of the handles 4 is hingedly connected to the outer sheath 1 through a connecting shaft, a bearing, etc., and the top of the other handle 4 is adjustably connected to the driving plate 42. Therefore, when the medical staff operates the two handles 4 to change the opening and closing angles, the driving plate 42 can be controlled to move along the length direction of the outer sheath 1, and then the movement of the connecting plate 5, the rack 35, etc. can be controlled to realize the adjustment of the state of the grasping forceps 3.

[0041] like Figure 4 , Figure 7 , Fig. 9 As shown, in order to realize the adjustable connection between the handle 4 and the driving plate 42, a walking plate 45 is fixedly arranged on the side of a driving plate 42, and a sliding hole 46 is arranged on the walking plate 45, and the sliding hole 46 is arranged along the length direction of the walking plate 45. A convex rod is arranged on the top of the handle 4 arranged near the walking plate 45, and the convex rod is arranged through the sliding hole 46. This arrangement can realize the movable connection between the handle 4 and the walking plate 45, so that the driving plate 42 can be moved when the handle 4 adjusts the opening and closing angle.

[0042] like Figure 4 As shown, in order to reset the handle 4 when not operating the handle 4, an elastic plate 41 is provided below the outer sheath 1, the elastic plate 41 is located between the two handles 4, and the two ends are respectively connected to the two handles 4. When the elastic plate 41 recovers its deformation, the two handles 4 can be forced to return to their original state.

[0043] Example 2

[0044] like Figure 1 As shown, on the basis of Example 1, in order to enable the egg retrieval needle 2 to penetrate the outer sheath 1, a penetrating channel is set on the outer sheath 1, and channels communicating with the outer sheath 1 are formed between the multiple grasping forceps 3. Therefore, the egg retrieval needle 2 penetrates the outer sheath 1 and the channels of the multiple grasping forceps 3.

[0045] like Figure 3 As shown, in order to control the stable connection between the egg retrieval needle 2 and the outer sheath 1 and reduce the probability of the egg retrieval needle 2 piercing other organs, a second end tube 22 is provided at one end of the egg retrieval needle 2, and a screw button groove 23 is provided on the outer wall of the second end tube 22. A closing structure is provided at the end of the screw button groove 23 away from the egg retrieval needle 2. A first end tube 13 is provided at the end of the outer sheath 1, and a screw button column 14 is fixedly provided on the inner wall of the first end tube 13. Therefore, during the process of the egg retrieval needle 2 being inserted into the outer sheath 1, the screw button column 14 can be installed in the screw button groove 23 when it rotates relative to the outer sheath 1, so as to realize the connection between the outer sheath 1 and the egg retrieval needle 2. At the same time, when the follicle is punctured, the movement of the egg retrieval needle 2 is restricted to reduce the probability of it damaging other organs.

[0046] like Figure 3As shown, in addition, one end of the egg retrieval needle 2 is set as a needle head 21, and the ends of the second end tube 22 are connected with two-way tubes 24, which are connected to the egg retrieval test tube port and the negative pressure aspirator port through pipelines to achieve the extraction of oocytes.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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.

Claims

1. A single-chamber oocyte collector with an auxiliary device, characterized in that: The invention comprises an egg retrieval needle (2), the egg retrieval needle (2) is arranged through an outer sheath (1) and can be adjusted relative to the outer sheath (1); a grasping forceps (3) is hingedly arranged at one end of the outer sheath (1), and a plurality of the grasping forceps (3) are evenly distributed along the circumferential direction of the outer sheath (1); two handles (4) are hingedly arranged in a scissor-like manner at the other end of the outer sheath (1); the top of one of the handles (4) is connected to the outer sheath (1), and the top of the other handle (4) is adjustably connected to a driving plate (42), the driving plate (42) is connected to the end of a connecting plate (5), the connecting plate (5) is arranged through the outer sheath (1), and the end of the connecting plate (5) is connected to the grasping forceps (3).

2. A single-chamber oocyte collector with an auxiliary device according to claim 1, characterized in that: A plurality of notches (11) are provided at the end of the outer sheath (1), and the number of the notches (11) is equal to the number of the grasping forceps (3); an end plate (32) is fixedly provided at the end of the grasping forceps (3), and the end plate (32) is arranged in the notch (11) via a shaft connection.

3. A single-chamber oocyte collector with an auxiliary device according to claim 2, characterized in that: A plurality of tooth grooves (33) are arranged at the end of the end plate (32), a gear (34) is meshedly arranged on the side of the tooth groove (33), and the gear (34) is arranged in the notch (11) via a shaft connection.

4. A single-chamber oocyte collector with an auxiliary device according to claim 3, characterized in that: A rack (35) is arranged in meshing connection below the gear (34); a plurality of through holes (12) are arranged in the side wall of the outer sheath (1); the number of the through holes (12) is equal to the number of the notches (11); the through holes (12) are in communication with the notches (11); and the rack (35) is movably arranged in the through holes (12).

5. A single-chamber oocyte collector with an auxiliary device according to claim 4, characterized in that: A movable hole (15) is provided at one end of the through hole (12) away from the grasping forceps (3); the connecting plate (5) is arranged in the through hole (12), one end of which is connected to the rack (35) and the other end of which extends into the movable hole (15).

6. A single-chamber oocyte collector with an auxiliary device according to claim 5, characterized in that: An intermediate plate (43) is detachably provided at the end of the connecting plate (5) extending into the moving hole (15); the end of the intermediate plate (43) protrudes out of the moving hole (15) and is provided with a groove; two driving plates (42) are provided, the two driving plates (42) are connected by bolts and are sleeved on the outer sheath (1); a convex plate (44) is provided on the inner side wall of the driving plate (42), and the convex plate (44) passes through the groove.

7. A single-chamber oocyte collector with an auxiliary device according to claim 1, characterized in that: A walking plate (45) is fixedly arranged on the side of the driving plate (42), and a sliding hole (46) is arranged on the walking plate (45), and the sliding hole (46) is arranged along the length direction of the walking plate (45); a convex rod is arranged on the top of the handle (4), and the convex rod passes through the sliding hole (46).

8. A single-chamber oocyte collector with an auxiliary device according to claim 7, characterized in that: An elastic plate (41) is provided below the outer sheath (1); the elastic plate (41) is located between the two handles (4), and both ends of the elastic plate (41) are respectively connected to the two handles (4).

9. The single-chamber oocyte collector with auxiliary device according to claim 1, characterized in that: The outer sheath (1) is provided with a through-hole, a hole communicating with the outer sheath (1) is formed between the plurality of grasping forceps (3), and the egg retrieval needle (2) penetrates the outer sheath (1) and the holes of the plurality of grasping forceps (3).

10. The single-chamber oocyte collector with auxiliary device according to claim 1, characterized in that: One end of the egg retrieval needle (2) is provided with a needle head (21), and the other end is provided with a second end tube (22); the ends of the second end tube (22) are provided with two through tubes (24) communicating with each other, and a screw-lock groove (23) is provided on the outer wall; a first end tube (13) is provided at the end of the outer sheath (1), and a screw-lock column (14) is fixedly provided on the inner wall of the first end tube (13), and the screw-lock column (14) is installed in the screw-lock groove (23).

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