Single-cavity egg taking needle

Abstract

The utility model relates to the technical field of ovum retrieval needles, and particularly discloses a single-cavity ovum retrieval needle which comprises a handle, a puncture needle and a first catheter are arranged on the handle, and the first catheter is communicated with the puncture needle. A test tube plug is arranged at the end, away from the handle, of the first catheter and connected with a negative pressure connector through a second catheter. The puncture needle is perpendicular to the handle; the end, away from the puncture needle, of the handle is provided with a concave arc-shaped part, and the end, close to the puncture needle, of the handle is provided with a plurality of protruding pressing handles. The puncture needle and the handle are L-shaped or T-shaped; the problems that in the puncturing process of a traditional single-cavity egg taking needle, a handle is not easy to hold, or the handle slips off from the hand; the risks of operation failure and the like are further caused; meanwhile, ovarian follicles are easily lost in the ovum taking process due to the fact that the ovum taking needle with a single cavity lacks a flushing function.

Description

TECHNICAL FIELD

[0001] The utility model relates to oocyte retrieval needle technical field, specifically, a single cavity oocyte retrieval needle. BACKGROUND

[0002] Oocyte retrieval needle is also called ovary needle, which is one of the commonly used instruments in gynecological surgery. It is used to assist in extracting oocytes from female ovaries during in vitro fertilization. The single cavity oocyte retrieval needle is usually composed of an elongated tubular structure, and a transparent circular cover is provided on the tube wall for protecting the extracted oocytes. The needle has a single chamber, and the oocytes are sucked into the chamber.

[0003] During clinical use, the traditional single cavity oocyte retrieval needle still has some problems, such as the elongated handle is not easy to hold or the handle is easily slipped from the hand during puncture, which may cause the risk of surgical failure. In addition, the single cavity oocyte retrieval needle lacks flushing function, which may cause the risk of follicle loss during oocyte retrieval. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a single cavity oocyte retrieval needle, which solves the problems of the traditional single cavity oocyte retrieval needle, such as the handle is not easy to hold or the handle is easily slipped from the hand during puncture, which may cause the risk of surgical failure. In addition, the single cavity oocyte retrieval needle lacks flushing function, which may cause the risk of follicle loss during oocyte retrieval.

[0005] The utility model realizes the following technical scheme: a single cavity oocyte retrieval needle, comprising a handle, a puncture needle and a first catheter are arranged on the handle, the first catheter communicates with the puncture needle; a test tube plug is arranged at one end of the first catheter away from the handle, the test tube plug is connected with a negative pressure connector through a second catheter; the puncture needle is perpendicular to the handle;

[0006] An arc-shaped part is arranged at one end of the handle away from the puncture needle, and a plurality of protruding pressing hands are arranged at one end of the handle close to the puncture needle.

[0007] Further, the puncture needle and the handle are in L shape.

[0008] Further, the puncture needle and the handle are in T shape.

[0009] Further, a cavity is arranged in the handle, and the two ends of the cavity communicate with the puncture needle and the first catheter respectively.

[0010] Further, the cavity communicates with the first catheter through a luer connector.

[0011] Further, a three-way valve is further included, two joints of the three-way valve are connected with the luer joint and the first conduit respectively, and a remaining joint of the three-way valve is connected with a flushing joint through a third conduit.

[0012] Further, a protective sleeve is further included, a boss is arranged on the handle, one end of the protective sleeve is embedded with the boss, and the puncture needle is arranged in the protective sleeve.

[0013] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0014] 1. The end of the handle far from the puncture needle is provided with a concave arc-shaped part, and the end of the handle close to the puncture needle is provided with a plurality of convex pressing hands; the arc-shaped part and the pressing hands can enable medical staff to better grasp the handle, and the grasping is more stable to avoid the handle from slipping off in the operation process, and thus avoid the generation of accidental risks such as operation failure.

[0015] 2. The three-way valve is rotated, the third conduit is communicated with the three-way valve, the first conduit is closed with the three-way valve, the flushing liquid is injected through the flushing joint on the third conduit, and the flushing liquid can flush the patient's follicle through the third conduit-three-way valve-cavity in the handle-inner cavity of the puncture needle. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and thus should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0017] Figure 1 The utility model provides a kind of single cavity oocyte extraction needle structure schematic diagram;

[0018] Figure: 1, handle, 11, arc-shaped part, 12, pressing hand, 13, cavity, 14, luer joint, 2, puncture needle, 3, first conduit, 4, test tube plug, 5, second conduit, 6, negative pressure joint, 7, three-way valve, 8, third conduit, 9, flushing joint, 10, protective sleeve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the following will be combined with the drawings in the embodiments of the utility model, and the technical scheme in the embodiments of the utility model is clearly and completely described, and obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] The following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] Referring to Figure 1 The present embodiment provides a single-cavity oocyte retrieval needle, which comprises a handle 1, a puncture needle 2 and a first catheter 3 are arranged on the handle 1, and the first catheter 3 is in communication with the puncture needle 2; a test tube plug 4 is arranged at an end of the first catheter 3 away from the handle 1, and the test tube plug 4 is connected with a negative pressure connector 6 through a second catheter 5; the test tube plug 4 is embedded in the mouth of a test tube, so that the first catheter 3, the test tube and the second catheter 5 are in communication, a negative pressure pump is connected with the negative pressure connector 6, and then a negative pressure is generated in the test tube, so that oocytes can be sucked through the first catheter 3 and the puncture needle 2, the oocytes in the follicle are attracted into the inner cavity of the puncture needle 2 by the negative pressure, and finally are transported into the test tube.

[0022] More specifically, as shown in Figure 1 An arc-shaped portion 11 is arranged at an end of the handle 1 away from the puncture needle 2, and a plurality of protruding pressing hands 12 are arranged at an end of the handle 1 close to the puncture needle 2; the arc-shaped portion 11 and the pressing hands 12 can enable medical staff to better grasp the handle 1, so that the handle 1 is more stable during the operation, and thus the risk of operation failure and other accidents is avoided.

[0023] Specifically, as shown in Figure 1 The puncture needle 2 is perpendicular to the handle 1; as one of the embodiments, the puncture needle 2 is arranged at one end of the handle 1 and forms an L shape with the handle 1, which is beneficial to the control and use of the puncture needle 2 by medical staff.

[0024] As another embodiment, the puncture needle 2 forms a T shape with the handle 1 (not shown in the drawings), and the puncture needle 2 is connected to the middle part of the handle 1 instead of being arranged at the end of the handle 1. After holding the handle 1, the puncture needle 2 is located between the index finger and the middle finger, which has a better holding effect and stable control, and facilitates the insertion and removal of the puncture needle 2.

[0025] More specifically, as shown in Figure 1 A cavity 13 is formed in the handle 1 by integral injection molding, and the two ends of the cavity 13 are in communication with the puncture needle 2 and the first catheter 3, respectively.

[0026] In specific implementation, one end of the cavity channel 13 is communicated with the first conduit 3 through the luer joint 14, and a 6:100 luer joint 14 is used here, and the luer joint 14 can switch multiple test tubes without plugging the puncture needle 2. This joint also allows multiple compatible fluids to be managed using the same pipeline, thereby reducing the wound on the patient.

[0027] More specifically, as shown in Figure 1 two joints of the three-way valve 7 are connected with the luer joint 14 and the first conduit 3 respectively, and the remaining joint of the three-way valve 7 is connected with the flushing joint 9 through the third conduit 8, and the flushing joint 9 is connected with a flushing machine to pump in flushing liquid.

[0028] In specific implementation, the first conduit 3 and the third conduit 8 are connected with the two joints of the three-way valve 7, the handle 1 is connected with the three-way valve 7 through the luer joint 14, and the three-way valve 7 is provided with a rotary switch, and through rotation in two directions, the first conduit 3, i.e. the negative pressure pipeline, can be communicated with the cavity channel 13 of the handle 1, or the third conduit 8, i.e. the flushing pipeline, can be communicated with the cavity channel 13 of the handle 1.

[0029] The three-way valve 7 is rotated to make the third conduit 8 communicated with the three-way valve 7 and the first conduit 3 closed, and flushing liquid is injected through the flushing joint 9 on the third conduit 8, and the flushing liquid can flush along the third conduit 8-three-way valve 7-handle 1-cavity channel 13-puncture needle 2 inner cavity to the patient's follicle.

[0030] After flushing, the three-way valve 7 is rotated to close the third conduit 8 and the three-way valve 7, open the first conduit 3 and the three-way valve 7, and at the same time, vacuum is drawn to the second conduit 5 and the negative pressure joint 6, so that the first conduit 3, the test tube, the third conduit 8 and the inner cavity of the puncture needle 2 form a negative pressure environment with the follicle as a whole, the ovum in the follicle is attracted to the inner cavity of the puncture needle 2 by negative pressure, and finally is transported into the test tube, thereby completing the collection of the ovum.

[0031] As shown in Figure 1 the handle 1 is provided with a boss 15, and when one end of the protective sleeve 10 is embedded with the boss 15, the puncture needle 2 is placed in the protective sleeve 10, and the protective sleeve 10 is mainly used for protecting the puncture needle 2 when the puncture needle 2 is not used, preventing pollution and damage, and avoiding accidental puncture of medical staff.

[0032] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A single-lumen oocyte retrieval needle, comprising a handle (1), a puncture needle (2) and a first catheter (3) arranged on the handle (1), the first catheter (3) being in communication with the puncture needle (2); a test tube plug (4) being arranged at a distal end of the first catheter (3) away from the handle (1), the test tube plug (4) being connected with a negative pressure connector (6) through a second catheter (5); characterized in that, The puncture needle (2) is perpendicular to the handle (1); An arc-shaped recess (11) is arranged on the end of the handle (1) away from the puncture needle (2), and a plurality of convex pressing hands (12) are arranged on the end of the handle (1) close to the puncture needle (2).

2. The single lumen oocyte retrieval needle of claim 1, wherein, The puncture needle (2) is L-shaped with the handle (1).

3. The single lumen oocyte retrieval needle of claim 1, wherein, The puncture needle (2) is T-shaped with the handle (1).

4. A single lumen oocyte retrieval needle as claimed in any one of claims 2 or 3, wherein, A cavity (13) is arranged in the handle (1), and two ends of the cavity (13) are respectively communicated with the puncture needle (2) and the first catheter (3).

5. A single lumen oocyte retrieval needle according to claim 4, wherein, The cavity (13) is communicated with the first catheter (3) through a luer joint (14).

6. An oocyte retrieval needle according to claim 5, wherein, A three-way valve (7) is further included, two joints of the three-way valve (7) are respectively connected with the luer joint (14) and the first catheter (3), and the remaining joint of the three-way valve (7) is connected with a flushing joint (9) through a third catheter (8).

7. A single lumen oocyte retrieval needle according to claim 6, wherein, A protective sleeve (10) is further included, a boss (15) is arranged on the handle (1), one end of the protective sleeve (10) is embedded with the boss (15), and the puncture needle (2) is arranged in the protective sleeve (10).

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