Hemostasis accessory and hemostasis device used after ovum retrieval puncture

Abstract

The utility model relates to the field of medical instruments, in particular to a hemostasis accessory and a hemostasis device used after ovum retrieval puncture, and the hemostasis accessory comprises a catheter part and a protection part; the catheter part is provided with an inserting end and a connecting end, the inserting end is used for penetrating through an ovum retrieval needle, and the connecting end is used for connecting an injector; one end of the protection part is connected to the insertion end, the protection part is distributed in the circumferential direction of the catheter part, and the other end of the protection part is a free end; the protection part has a contracted state and an unfolded state, when the protection part is in the unfolded state, a shielding area is formed between the side face, facing the catheter part, of the protection part and the catheter part, and the shielding area is used for shielding the needle tip of the ovum retrieval needle. By means of the hemostasis accessory and the hemostasis device used after ovum extraction puncture, hemostasis can be achieved in a more efficient, safer and more convenient method, and adverse consequences of a patient are prevented.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a hemostatic auxiliary and a hemostatic device after egg retrieval. Background Art

[0002] In the "in vitro fertilization and embryo transfer" technology, egg retrieval is an indispensable step. Usually, an egg retrieval needle is used to puncture the vagina to retrieve eggs. Usually, due to bleeding at the egg retrieval puncture point, or because the puncture needle accidentally passes through a small blood vessel, pelvic bleeding occurs. After pelvic bleeding, bleeding needs to be stopped. The existing hemostasis method is generally through intramuscular or intravenous injection of hemostatic drugs.

[0003] The effect and speed of hemostatic drugs for local pelvic hemostasis are poor, especially for patients who are in a hypercoagulable state after ovulation induction. Intravenous or intramuscular injection of hemostatic drugs increases the risk of thrombosis. Moreover, hemostatic drugs take a long time to take effect, and usually require a certain amount of waiting. During the waiting period, the patient may continue to bleed from the pelvic bleeding point, resulting in a significant decrease in hemoglobin, which will have adverse consequences for the patient. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the first aspect of the utility model provides a hemostatic auxiliary and a hemostatic device after egg retrieval puncture, a hemostatic auxiliary comprising a catheter part and a protective part; the catheter part has an insertion end and a connecting end, the insertion end is used to pass through the egg retrieval needle, and the connecting end is used to connect the syringe; one end of the protective part is connected to the insertion end, and the protective part is distributed along the circumference of the catheter part, and the other end of the protective part is a free end;

[0005] The protection part has a contracted state and an expanded state. When the protection part is in the contracted state, the free end of the protection part is retracted toward the central axis of the catheter part to allow the catheter part to pass through the egg retrieval needle; when the protection part is in the expanded state, a shielding area is formed between the side of the protection part facing the catheter part and the catheter part, and the shielding area is used to shield the needle tip of the egg retrieval needle.

[0006] Optionally, the contraction state of the protection portion includes a first contraction state and a second contraction state;

[0007] The first contracted state is that the protection part is in close contact with the outer surface of the conduit part, and the free end of the protection part is an end of the protection part close to the connection end;

[0008] In the second contracted state, the free end of the protecting portion is an end of the protecting portion away from the connecting end.

[0009] Optionally, the protecting part is an elastic component, and the protecting part is in an unfolded state in a natural state.

[0010] Optionally, the protection portion is made of memory foam.

[0011] Optionally, the hemostatic aid also includes an injection connection part, which is connected to the connection end, and the diameter of the injection connection part and the matching end of the syringe is larger than the diameter of the catheter part, so as to facilitate the matching of the injection connection part and the syringe.

[0012] Optionally, the injection connection is funnel-shaped.

[0013] Optionally, the injection connection portion is formed integrally with the connection end;

[0014] Alternatively, the injection connection portion is a detachable injection connection piece, and the injection connection piece is detachably connected to the connection end. Optionally, the shape of the protection portion in the unfolded state is an umbrella shape.

[0015] Optionally, the protection portion includes a plurality of parasol blades.

[0016] The second aspect of the utility model discloses a hemostatic device after egg retrieval puncture, including an egg retrieval needle assembly and a hemostatic auxiliary. The egg retrieval needle assembly includes an egg retrieval needle, a fixing piece and a drainage tube that can be cut off. One end of the fixing piece is the egg retrieval needle connecting end, and the other end is the drainage tube connecting end. The hemostatic auxiliary is used to pass the egg retrieval needle through the drainage tube connecting end of the fixing piece when hemostasis is needed.

[0017] The utility model has the following beneficial effects:

[0018] Through the hemostatic auxiliary and hemostatic device after egg retrieval puncture of the present application, the auxiliary egg retrieval needle can be used to inject drugs, and the hemostatic drug can be injected at the bleeding site to achieve local hemostasis, which can stop bleeding more efficiently and safely. In the process of hemostasis, not only will it not cause secondary harm to the patient, but it will also shorten the waiting time for the hemostatic drug to take effect, and avoid the influence of the coagulation drug on the whole body coagulation state, solving the problem of poor effect of traditional hemostasis methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a hemostatic auxiliary and a hemostatic device after egg retrieval puncture according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the hemostatic auxiliary part of the present invention entering the egg retrieval needle;

[0021] Figure 3 This is a schematic diagram of the structure of the hemostatic auxiliary device of the present invention connected to a syringe for hemostasis;

[0022] Figure 4 This is a schematic diagram of the structure of the hemostatic auxiliary of the present invention being pulled out from the egg retrieval needle;

[0023] Figure 5 It is a schematic structural diagram of another hemostatic auxiliary component of the present invention;

[0024] Figure 6It is a schematic structural diagram of another hemostatic auxiliary of the present invention in another state;

[0025] Figure 7 This is a schematic diagram of the structure of the egg retrieval needle assembly of the present invention;

[0026] The numbers in the figure are: catheter part 1, insertion end 11, connection end 12, protection part 2, free end 21, umbrella piece 22, injection connection part 3, injection connection piece 31, egg retrieval needle 4, shielding area 5, fixing piece 6, drainage tube 7, syringe 8. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 As shown, in one embodiment of the utility model, a hemostatic auxiliary after egg retrieval puncture is provided, comprising a catheter portion 1 and a protection portion 2; the catheter portion 1 has an insertion end 11 and a connection end 12, the insertion end 11 is used to pass through the egg retrieval needle 4, and the connection end 12 is used to connect the syringe 8; one end of the protection portion 2 is connected to the insertion end 11, and the protection portion 2 is distributed along the circumference of the catheter portion 1, and the other end of the protection portion 2 is a free end 21;

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the protection part 2 has a contracted state and an expanded state. When the protection part 2 is in the contracted state, the free end 21 of the protection part 2 is retracted toward the central axis direction of the catheter part 1 to allow the catheter part 1 to pass through the egg retrieval needle 4; when the protection part 2 is in the expanded state, a shielding area 5 is formed between the protection part 2 and the catheter part 1 on one side thereof, and the shielding area 5 is used to shield the needle tip of the egg retrieval needle 4.

[0030] After the ultrasound-guided transvaginal puncture and egg retrieval, the ovaries and pelvic cavity are usually checked for active bleeding before the egg retrieval needle is completely withdrawn from the vaginal wall. If obvious bleeding is observed under ultrasound guidance, the accessory is combined with the egg retrieval needle to stop bleeding, achieving the purpose of safe and efficient hemostasis.

[0031] After the protective part enters the inner cavity of the egg retrieval needle and passes through the needle tip of the egg retrieval needle, the needle tip of the egg retrieval needle is at the rear end of the protective part, shielding the needle tip of the egg retrieval needle to prevent the egg retrieval needle from damaging the pelvic tissue. The protective part in the expanded state contacts the pelvic tissue. The needle tip of the egg retrieval needle is sharp, and it is easy to damage the pelvic tissue again in the process of finding the bleeding location, thereby causing more bleeding. The protective part in the expanded state increases the contact area with the pelvic tissue, which is beneficial to protect the pelvic tissue and prevent the needle tip of the egg retrieval needle from damaging the bleeding location in the pelvis.

[0032] like Figure 2 , Figure 4 As shown, in an optional embodiment, the contraction state of the protection portion 2 includes a first contraction state and a second contraction state;

[0033] like Figure 2 As shown, in the first contracted state, the protection portion 2 is in close contact with the outer surface of the conduit portion 1, and the free end 21 of the protection portion 2 is an end of the protection portion 2 close to the connection end 12;

[0034] like Figure 4 As shown, in the second contracted state, the free end 21 of the protecting portion 2 is the end of the protecting portion 2 away from the connecting end 12 .

[0035] In a specific embodiment, during the process of the protection part following the catheter part to be pushed into the internal cavity of the egg retrieval needle, the protection part is subjected to external force, and the free end of the protection part close to the connecting end shrinks and enters the internal cavity of the egg retrieval needle.

[0036] In another specific embodiment, during the process of the protection part following the catheter part being pulled out from the internal cavity of the egg retrieval needle, the protection part is subjected to external force, and the free end of the protection part is contracted and pulled out from the internal cavity of the egg retrieval needle toward the end away from the connecting end.

[0037] like Figure 1 As shown, in an optional embodiment, the protection portion 2 is an elastic component, and the protection portion 2 is in an unfolded state in a natural state.

[0038] In a specific embodiment, the protective part has a certain elasticity. The protective part is in a contracted state when entering the cavity of the egg retrieval needle. After the protective part completely passes through the internal cavity of the egg retrieval needle, it recovers from the contracted state to the expanded state under the action of elasticity. In the expanded state, the contact area between the protective part and the pelvic tissue is large, which can prevent the needle tip of the egg retrieval needle from damaging the pelvic tissue, thereby playing a protective role.

[0039] In an optional embodiment, the protection part 2 is made of memory foam.

[0040] Memory foam has slow resilience and viscoelastic properties. When subjected to pressure, the memory foam will slowly sink without generating strong rebound force, and gradually return to its original shape after the pressure is removed. Moreover, memory foam has the advantages of being soft, harmless to the human body, not easy to deform, and durable. The material used in the protection part needs to have a certain degree of softness to avoid strong impact during the recovery process and damage to the pelvic tissue. At the same time, the protection part needs to use materials that are harmless to the human body to prevent other harm to the patient during the hemostasis process.

[0041] like Figure 1 , Figure 3 As shown, in an optional embodiment, the hemostatic aid also includes an injection connection part 3, which is connected to the connection end 12. The diameter of the injection connection part 3 and the matching end of the syringe 8 is larger than the diameter of the catheter part 1, which facilitates the matching of the injection connection part 3 and the syringe 8.

[0042] When injecting hemostatic drugs, the syringe is connected to the injection connection part 3, and the hemostatic drugs are injected from the injection connection part through the catheter part and finally into the bleeding position through the protective part. The connection end of the catheter part has a small diameter, which is not convenient for connecting the syringe to inject hemostatic drugs. By setting the injection connection part, it is convenient to put the syringe into the injection connection part, making it more convenient to inject hemostatic drugs. The shape, size, etc. of the injection connection part can be set according to needs and are not limited here.

[0043] like Figure 1 As shown, in an optional embodiment, the injection connection part 3 is funnel-shaped.

[0044] On the basis of the previous embodiment, in this embodiment, the injection connection part is more suitable for the syringe, and specifically, the shape of the injection connection part is set to be a funnel shape. By setting the shape of the injection connection part to be a funnel shape, the smaller diameter of the catheter part can be further enlarged, the syringe is more convenient to insert into the injection connection part, and the injection resistance is reduced.

[0045] like Figures 1 to 4 As shown, in an optional embodiment, the injection connection portion 3 is formed integrally with the connection end 12;

[0046] In a specific embodiment, the injection connection part is formed integrally with the catheter part. The injection connection part is used in conjunction with syringes of various specifications. By providing the injection connection part, it is convenient to connect the syringe and reduce the injection resistance.

[0047] or, as Figure 5 , Figure 6 As shown, the injection connection part 3 is a detachable injection connection piece 31 , and the injection connection piece 31 is detachably connected to the connection end 12 .

[0048] In another specific embodiment, the injection connection part is a detachable injection connection piece, which is detachably connected to the connection end of the catheter part, and the user can disassemble or connect the injection connection piece according to the needs. Specifically, the injection connection piece can be connected to the connection end of the catheter part through a thread, and the outer surface of the connection end of the catheter part is provided with an external thread, and the inner wall of the injection connection piece is provided with an internal thread. Alternatively, the injection connection piece is inserted or pulled out close to the connection end of the catheter part. The injection connection piece can be made into multiple parts of different sizes and shapes. According to the needs, the user can choose injection connections of different sizes or shapes to be connected to the connection end of the catheter part.

[0049] like Figure 1 , Figure 3 As shown, in an optional embodiment, the shape of the protection portion 2 in the unfolded state is an umbrella shape.

[0050] In this embodiment, the shape of the protection part in the unfolded state is an umbrella shape. The umbrella shape can increase the contact area between the protection part and the pelvic tissue, which is beneficial to protect the pelvic tissue and prevent it from being damaged again.

[0051] like Figure 1 , Figure 2 As shown, in an optional embodiment, the protection portion 2 includes a plurality of umbrella pieces 22 .

[0052] The umbrella pieces are strip-shaped. In a natural state without external force, several umbrella pieces form an umbrella shape around the insertion end of the catheter part. By forming an umbrella shape with several umbrella pieces, the protective part is easier to shrink, making it easier to enter and exit the internal cavity of the egg retrieval needle.

[0053] In this embodiment, a hemostatic device after egg retrieval puncture is also disclosed, and the hemostatic device includes an egg retrieval needle assembly and a hemostatic auxiliary component, such as Figure 7 As shown, the egg retrieval needle assembly includes an egg retrieval needle 4, a fixing member 6 and a shearable drainage tube 7. One end of the fixing member 6 is the connecting end of the egg retrieval needle 4, and the other end is the connecting end of the drainage tube 7. The hemostatic auxiliary is used to pass the egg retrieval needle 4 through the connecting end of the drainage tube 7 of the fixing member 6 when hemostasis is required.

[0054] Drainage tubes are widely used in clinical practice and come in many types. Drainage tubes can drain fluids accumulated in human tissues and discharge them out of the body. In this embodiment, the fixing member fixes the drainage tube and the egg retrieval needle and connects them together. One end of the fixing member is the egg retrieval needle connection end, and the other end is the drainage tube connection end. When the drainage tube is cut off, the drainage tube connection end of the fixing member is exposed, which is equivalent to exposing the internal cavity of the egg retrieval needle.

[0055] When in use, the drainage tube is cut off, and the hemostatic auxiliary is connected from the drainage tube connection end of the fixing piece. The protection part follows the catheter part from the drainage tube connection end of the fixing piece through the egg retrieval needle, and the syringe is connected to the injection connection part to inject the vascular stasis drug into the bleeding point.

[0056] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A hemostatic aid after egg retrieval puncture, characterized in that: The hemostatic auxiliary device comprises a catheter portion (1) and a protective portion (2); the catheter portion (1) has an insertion end (11) and a connection end (12); the insertion end (11) is used to pass through an egg retrieval needle (4), and the connection end (12) is used to connect to a syringe (8); one end of the protective portion (2) is connected to the insertion end (11), and the protective portion (2) is distributed along the circumference of the catheter portion (1), and the other end of the protective portion (2) is a free end (21); The protection part (2) has a contracted state and an expanded state. When the protection part (2) is in the contracted state, the free end (21) of the protection part (2) is retracted toward the central axis of the catheter part (1) so that the catheter part (1) can pass through the egg retrieval needle (4). When the protection part (2) is in the expanded state, a shielding area (5) is formed between the side surface of the protection part (2) facing the catheter part (1) and the catheter part (1), and the shielding area (5) is used to shield the needle tip of the egg retrieval needle (4).

2. The hemostatic aid after egg retrieval puncture according to claim 1, characterized in that: The contraction state of the protection portion (2) includes a first contraction state and a second contraction state; The first contracted state is that the protection portion (2) is in close contact with the outer surface of the conduit portion (1), and the free end (21) of the protection portion (2) is the end of the protection portion (2) close to the connecting end (12); The second contracted state is that the free end (21) of the protection portion (2) is the end of the protection portion (2) away from the connection end (12).

3. The hemostatic aid after egg retrieval puncture according to claim 2, characterized in that: The protection part (2) is an elastic component, and the protection part (2) is in an unfolded state in a natural state.

4. The hemostatic aid after egg retrieval puncture according to claim 3, characterized in that: The protection part (2) is made of memory foam.

5. The hemostatic aid after egg retrieval puncture according to claim 1, characterized in that: The hemostatic auxiliary also includes an injection connection part (3), which is connected to the connection end (12). The diameter of the injection connection part (3) and the matching end of the syringe (8) is larger than the diameter of the catheter part (1), so as to facilitate the matching of the injection connection part (3) and the syringe (8).

6. The hemostatic aid after egg retrieval puncture according to claim 5, characterized in that: The injection connection part (3) is in the shape of a funnel.

7. The hemostatic aid after egg retrieval puncture according to claim 5, characterized in that: The injection connection part (3) and the connection end (12) are formed integrally; Alternatively, the injection connection portion (3) is a detachable injection connection piece (31), and the injection connection piece (31) is detachably connected to the connection end (12).

8. The hemostatic aid after egg retrieval puncture according to claim 7, characterized in that: The shape of the protection part (2) in the unfolded state is an umbrella shape.

9. The hemostatic aid after egg retrieval puncture according to claim 8, characterized in that: The protection part (2) comprises a plurality of umbrella pieces (22).

10. A hemostatic device after egg retrieval puncture, characterized in that: It comprises an egg retrieval needle assembly and a hemostatic auxiliary according to any one of claims 1 to 8, wherein the egg retrieval needle assembly comprises an egg retrieval needle (4), a fixing member (6) and a shearable drainage tube (7), one end of the fixing member (6) being a connecting end of the egg retrieval needle (4), and the other end being a connecting end of the drainage tube (7), and the hemostatic auxiliary is used to pass the egg retrieval needle (4) through the drainage tube (7) connecting end of the fixing member (6) when hemostasis is required.

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