Double-cavity egg taking needle
By improving the grip structure and needle tip design of the double-lumen oocyte retrieval needle, the problems of handle slippage and excessively large needle tip wounds have been solved, resulting in more stable operation and less tissue damage, thus improving the accuracy and safety of oocyte retrieval surgery.
Patent Information
- Application Number
- CN202422850170.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The double-lumen oocyte retrieval needle has problems such as the handle being difficult to hold during the puncture process, easy slippage, and the large wound at the needle tip causing pain to the patient.
A double-lumen oocyte retrieval needle was designed, featuring a large handle structure with a raised arc and multiple grooves on the back of the handle for easy gripping. The puncture needle is blunt with a 40° tip angle, and flushing and negative pressure cavities are provided to improve operational stability and accuracy.
It improves the gripping stability of the handle, reduces damage to tissues from the needle tip, and enhances the precision and safety of the surgery.
Smart Images
Figure CN223627566U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oocyte retrieval needle technical field, specifically, relate to a double cavity oocyte retrieval needle. BACKGROUND
[0002] Oocyte retrieval needle is also called ovariectomy needle, and it is one of commonly used instruments in gynecological operation; it is used for assisting in extracting ova from female ovary in the in vitro fertilization process. At present, the double cavity oocyte retrieval needle has two chambers, one chamber is used for inhaling ova, and the other chamber is used for injecting liquid to help releasing ova. The double cavity oocyte retrieval needle has better control ability and ovum acquisition efficiency compared with single cavity oocyte retrieval needle.
[0003] In the clinical use process, the double cavity oocyte retrieval needle has single structure and function, so that a few problems still exist, such as the handle is not easy to hold during puncture process, or the handle slips from the hand, and further causes the risk of operation failure, and the like; and the puncture needle tip wound is too large, and the patient is caused pain during the operation process and the like. UTILITY MODEL CONTENT
[0004] The utility model discloses a double cavity oocyte retrieval needle, which solves the problems of the double cavity oocyte retrieval needle, such as the handle not being easy to hold during puncture process, or the handle slipping from the hand, and further causing the risk of operation failure, and the like; and the puncture needle tip wound being too large, and the patient being caused pain during the operation process and the like.
[0005] The utility model discloses a double cavity oocyte retrieval needle, which solves the problems of the double cavity oocyte retrieval needle, such as the handle not being easy to hold during puncture process, or the handle slipping from the hand, and further causing the risk of operation failure, and the like; and the puncture needle tip wound being too large, and the patient being caused pain during the operation process and the like.
[0006] The big handle is further connected with a flushing catheter and a first negative pressure pipe, one end of the flushing catheter close to the big handle is communicated with the flushing cavity, and one end of the first negative pressure pipe close to the big handle is communicated with the negative pressure cavity.
[0007] One end of the first negative pressure pipe away from the big handle is provided with a test tube plug, and the test tube plug is further connected with a second negative pressure pipe.
[0008] One side of the big handle is provided with a convex arc part, and a plurality of grooves are arranged at the other side of the big handle at intervals.
[0009] Further, the puncture needle is a blunt needle.
[0010] Further, the puncture needle is vertically arranged on one side of the big handle close to the groove.
[0011] Further, the puncture needle and the big handle are in T shape.
[0012] Further, the puncture needle is L-shaped with the large handle.
[0013] Further, a main cavity and a secondary cavity are arranged in the large handle, two ends of the main cavity are communicated with the negative pressure cavity and the first negative pressure tube respectively, and two ends of the secondary cavity are communicated with the flushing cavity and the flushing conduit respectively.
[0014] Further, the angle between the bevel of the puncture needle tip and the puncture needle body is 40°.
[0015] Further, a protection cap is further included, a boss is arranged on one side of the large handle close to the puncture needle, the boss is embedded with the protection cap, and the puncture needle is located in the protection cap.
[0016] Further, a flushing connector is arranged at one end of the flushing conduit away from the large handle.
[0017] Further, a negative pressure connector is arranged at one end of the second negative pressure tube away from the test tube plug.
[0018] The technical scheme of the utility model has at least the following advantages and beneficial effects:
[0019] 1. The structure of the large handle with a larger size, the convex arc part on the back of the large handle can be attached to the palm, and the plurality of recesses on the front of the large handle can accommodate fingers, which is more in line with the arc and shape of hand grasping, so that the medical staff can better grasp the large handle, avoid the handle from slipping accidentally during the operation, and grasp more stably; at the same time, the operator can better control the direction and force of the puncture needle, and the accuracy of the oocyte retrieval operation is improved.
[0020] 2. The angle of the puncture needle tip can reach 40°, and the puncture needle adopts a blunt needle tip, which can reduce the risk of nerve and blood vessel injury in the clinical use process, can enter the needle from a hidden place, and can reach a farther injection position. BRIEF DESCRIPTION OF DRAWINGS
[0021] 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 should not be regarded as a limitation to the scope, and for the ordinary skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.
[0022] Figure 1 The utility model provides a structure schematic diagram when the large handle and the puncture needle are T-shaped in a double-cavity oocyte retrieval needle.
[0023] Figure 2 The utility model provides a structure schematic diagram when the large handle and the puncture needle are T-shaped in a double-cavity oocyte retrieval needle. Figure 1An enlarged schematic view of the structure at A in the middle;
[0024] Figure 3 A structure schematic view of the needle tip of the puncture needle in the double-cavity oocyte retrieval needle provided by the utility model;
[0025] Figure 4 A structure schematic view of the large handle and the puncture needle in L shape of the double-cavity oocyte retrieval needle provided by the utility model;
[0026] Icon: 1, large handle, 11, arc part, 12, groove, 13, main cavity, 14, auxiliary cavity, 15, boss, 2, puncture needle, 21, flushing cavity, 22, negative pressure cavity, 3, flushing catheter, 31, flushing joint, 4, first negative pressure pipe, 5, test tube plug, 6, second negative pressure pipe, 61, negative pressure joint, 7, protective cap. DETAILED DESCRIPTION
[0027] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below, obviously, the described embodiments are part of the embodiments of the utility model, rather than 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.
[0028] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the utility model.
[0029] Referring to Figures 1 to 4 The embodiment provides a double-cavity oocyte retrieval needle, including a puncture needle 2, the inner cavity of the puncture needle 2 has a flushing cavity 21 and a negative pressure cavity 22, the unique design of the double-cavity oocyte retrieval needle can obtain the maximum oocyte spillage rate, and the enhanced response head can improve the visual effect under ultrasound, so that the puncture accuracy is improved, and the damage of oocyte retrieval is greatly reduced.
[0030] As Figure 1 , 2And 4, further comprising a large handle 1, the large handle 1 is provided with a puncture needle 2, the large handle 1 is further connected with a flushing conduit 3 and a first negative pressure pipe 4, the flushing conduit 3 is communicated with a flushing cavity 21 at the end close to the large handle 1, the first negative pressure pipe 4 is communicated with a negative pressure cavity 22 at the end close to the large handle 1; the end of the first negative pressure pipe 4 away from the large handle 1 is provided with a test tube plug 5, the test tube plug 5 is further connected with a second negative pressure pipe 6, the end of the second negative pressure pipe 6 away from the test tube plug 5 is provided with a negative pressure connector 61, the negative pressure machine is connected through the negative pressure connector 61; after the test tube plug 5 is butted with the mouth of a test tube, the second negative pressure pipe 6, the test tube, the first negative pressure pipe 4 and the puncture needle 2 are communicated and form a negative pressure pipeline, the negative pressure machine is used to extract air to generate negative pressure, and then the test tube generates negative pressure, and immediately the puncture needle 2 is used to suck the ova in the follicle, the ova in the follicle are attracted to the negative pressure cavity 22 in the puncture needle 2 by negative pressure, and finally are transported into the test tube.
[0031] More specifically, as shown in Figure 1 、 2 and 4, the end of the flushing conduit 3 away from the large handle 1 is provided with a flushing connector 31, before negative pressure extraction, the flushing machine is connected through the flushing connector 31, and then the flushing machine is used to pump flushing liquid into the follicle through the flushing connector 31, the flushing conduit 3 and the flushing cavity 21 in the puncture needle 2, so that the follicle is flushed, and the ova in the follicle are dispersed in the flushing liquid, facilitating extraction, after flushing is completed, the negative pressure machine can be started to extract the ova and the flushing liquid, and finally the ova and the flushing liquid are stored in the test tube. At the same time, flushing liquid can be pumped and negative pressure extraction can be performed at the same time, that is, flushing and ovum extraction are performed synchronously, greatly improving the ovum extraction efficiency.
[0032] Specifically, as shown in Figure 1 and 4 , the large handle 1 is provided with a convex circular arc part 11 on one side, and a plurality of grooves 12 are arranged on the other side. The structure of the large handle 1 with a larger size, plus the convex circular arc part 11 on the back of the large handle 1 can be fitted with the palm, and the plurality of grooves 12 on the front of the large handle 1 can accommodate fingers, more in line with the arc and shape of hand grasping, so that medical staff can better grasp the large handle 1, avoid the handle from slipping during the operation, and grasp more stably; at the same time, the operator can better control the direction and force of the puncture needle 2, and improve the accurate alignment of the needle tip in the ovum extraction operation.
[0033] More specifically, as shown in Figure 1 , the puncture needle 2 is vertically arranged on the side of the large handle 1 close to the groove 12, and the puncture needle 2 and the large handle 1 form a T shape. The puncture needle 2 is located in the middle of the large handle 1, usually between the index finger and the middle finger or between the middle finger and the ring finger, cooperating with the circular arc part 11 and the plurality of grooves 12 on the large handle 1, the control and use of the puncture needle 2 are more easy.
[0034] As another embodiment, as shown in Figure 4 The puncture needle 2 is L-shaped with the large handle 1, that is, the puncture needle 2 is located at the end of the large handle 1, and after holding the large handle 1, the puncture needle 2 is located at the interdigital space between the index finger and the thumb, and is L-shaped with the large handle 1, and cooperates with the circular arc part 11 and the plurality of grooves 12 on the large handle 1, so that the puncture needle 2 can be more easily controlled and used.
[0035] More specifically, as shown in Figure 3 The puncture needle 2 is a blunt needle, and the angle between the bevel of the needle tip of the blunt needle and the blunt needle is 40°. In specific implementation, the angle of the needle tip of the puncture needle 2 can reach 40°. Compared with the traditional sharp needle tip, the blunt needle tip can reduce the risk of nerve and blood vessel injury in the clinical use process, can enter the needle from a hidden place, and can reach a far injection position.
[0036] More specifically, as shown in Figure 1 and 4 The large handle 1 is provided with a main cavity 13 and a secondary cavity 14. The two ends of the main cavity 13 are respectively communicated with the negative pressure cavity 22 and the first negative pressure pipe 4. The two ends of the secondary cavity 14 are respectively communicated with the flushing cavity 21 and the flushing pipe 3. Thus, the negative pressure pipe and the flushing pipe are independent of each other and do not interfere with each other, and the flushing of the ova and the extraction of the ova can be performed synchronously.
[0037] As shown in Figure 1 and 4 The large handle 1 is provided with a boss 15 near the puncture needle 2. The boss 15 is embedded with a protective cap 7. The puncture needle 2 is located in the protective cap 7. The protective cap 7 is mainly used for protecting the puncture needle 2 when not in use, preventing the puncture needle 2 from being contaminated and damaged, protecting the staff from being pricked during transportation, and avoiding the liquid on the puncture needle 2 from polluting the environment and protecting the staff after use.
[0038] 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 double-lumen oocyte retrieval needle comprising a puncture needle (2) having a flushing lumen (21) and a negative pressure lumen (22) in the inner cavity of the puncture needle (2), characterized in that: Also include a large handle (1), the large handle (1) is provided with the puncture needle (2); The large handle (1) is also connected with a flushing catheter (3) and a first negative pressure pipe (4), one end of the flushing catheter (3) close to the large handle (1) is communicated with the flushing cavity (21), one end of the first negative pressure pipe (4) close to the large handle (1) is communicated with the negative pressure cavity (22); One end of the first negative pressure pipe (4) away from the large handle (1) is provided with a test tube plug (5), and the second negative pressure pipe (6) is also connected to the test tube plug (5); The large handle (1) is provided with a convex arc part (11) on one side, and a plurality of grooves (12) are arranged on the other side of the large handle (1) at intervals.
2. The double lumen oocyte retrieval needle of claim 1, wherein, The puncture needle (2) is a blunt needle.
3. A double lumen oocyte retrieval needle according to claim 2, wherein, The puncture needle (2) is vertically arranged on one side of the large handle (1) close to the groove (12).
4. A double lumen oocyte retrieval needle according to claim 3, wherein, The puncture needle (2) and the large handle (1) are T-shaped.
5. The double lumen oocyte retrieval needle of claim 3, wherein, The puncture needle (2) and the large handle (1) are L-shaped.
6. A double lumen oocyte retrieval needle as claimed in any of claims 4 or 5, wherein, The large handle (1) is provided with a main cavity (13) and a secondary cavity (14), both ends of the main cavity (13) are communicated with the negative pressure cavity (22) and the first negative pressure pipe (4) respectively, and both ends of the secondary cavity (14) are communicated with the flushing cavity (21) and the flushing catheter (3) respectively.
7. A double lumen oocyte retrieval needle according to claim 6, wherein, The angle between the bevel of the needle tip of the puncture needle (2) and the body of the puncture needle (2) is 40°.
8. A double lumen oocyte retrieval needle according to claim 6, wherein, Also include a protective cap (7), the large handle (1) is provided with a boss (15) on one side close to the puncture needle (2), the boss (15) is embedded with the protective cap (7), and the puncture needle (2) is located in the protective cap (7).
9. The double lumen oocyte retrieval needle of claim 6, wherein, One end of the flushing catheter (3) away from the large handle (1) is provided with a flushing connector (31).
10. The double lumen oocyte retrieval needle of claim 6, wherein, One end of the second negative pressure pipe (6) away from the test tube plug (5) is provided with a negative pressure connector (61).