A disposable endometrial sampler

Abstract

This utility model discloses a disposable endometrial sampler, including an outer tube, a negative pressure suction head connected to one end of the outer tube by a thread, and a sampling bottle connected to one end of the outer tube by a thread. The negative pressure suction head and the sampling bottle are sequentially installed inside the outer tube. A core rod is inserted inside the outer tube, and a silicone ring is provided at the end of the core rod inside the outer tube. The core rod pulls the silicone ring to move inside the outer tube, so that endometrial tissue is sucked into the outer tube through the negative pressure suction head. This utility model uses the sampling bottle to directly obtain endometrial tissue inside the outer tube, reducing the loss and contamination of endometrial tissue collected inside the outer tube during the testing and transfer process.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a disposable endometrial sampler. Background Technology

[0002] Disposable endometrial samplers use negative pressure to aspirate endometrial tissue or use a brush to scrape off endometrial tissue.

[0003] When obtaining samples in clinical practice, traditional disposable endometrial samplers require the use of cotton swabs to transfer endometrial tissue from the sampler to pathology bottles (containing formalin) or small centrifuge tubes (used for tissue cryopreservation). This process can easily lead to loss and contamination of the endometrial tissue during the examination and transfer process. Utility Model Content

[0004] The purpose of this invention is to provide a disposable endometrial sampler to solve the technical problems of easy loss and contamination during the transfer of endometrial tissue for testing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A disposable endometrial sampler, comprising:

[0007] An outer tube, a negative pressure suction head connected to one end of the outer tube by a thread, and a sampling bottle connected to one end of the outer tube by a thread, wherein the negative pressure suction head and the sampling bottle are sequentially installed inside the outer tube;

[0008] A core rod is inserted inside the outer tube, and a silicone ring is provided at the end of the core rod inside the outer tube. The core rod pulls the silicone ring to move inside the outer tube, so that the endometrial tissue is sucked into the outer tube through the negative pressure suction head.

[0009] As a preferred embodiment of this utility model, one end of the outer sleeve is also connected to a sealing sleeve by a thread.

[0010] As a preferred embodiment of this utility model, a screw is fixedly installed at one end of the outer sleeve, and the screw is connected to the negative pressure suction head, the sampling bottle and the sealing sleeve by threads.

[0011] In a preferred embodiment of this utility model, the outer diameter of the core rod is smaller than the inner diameter of the outer tube, and the outer diameter of the silicone ring is at least the same as the inner diameter of the outer tube.

[0012] As a preferred embodiment of this utility model, a hollow partition is also fixedly installed inside the outer tube, and the core rod can slide along the inner hole of the hollow partition so that the silicone ring moves to the position of the hollow partition.

[0013] As a preferred embodiment of this utility model, a limiting plate is provided on the outer surface of the core rod, and the distance between the limiting plate and the silicone ring is the same as the length of the outer sleeve.

[0014] As a preferred embodiment of this utility model, the inner walls of the negative pressure suction head, sampling bottle, and sealing sleeve are all provided with threaded grooves that cooperate with the screw.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention uses a threaded, detachable suction head instead of an integral part of the outer tube. Therefore, after obtaining endometrial tissue using negative pressure, the suction head can be disassembled and the sampling bottle can be directly threaded onto the outer tube. This allows for direct acquisition of endometrial tissue from inside the outer tube, reducing loss and contamination of the endometrial tissue collected from inside the outer tube during the testing and transfer process. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the sampler when the negative pressure suction head is connected according to this embodiment;

[0019] Figure 2 Provided for this embodiment Figure 1 Cross-sectional view at point AA;

[0020] Figure 3 A structural diagram of the sampler when connecting the sampling bottle as provided in this embodiment;

[0021] Figure 4 Provided for this embodiment Figure 3 Cross-sectional view of BB section;

[0022] Figure 5 A structural diagram of the sampler when the sealing sleeve is connected according to this embodiment;

[0023] Figure 6 Provided for this embodiment Figure 5Cross-sectional view at CC;

[0024] Figure 7 Provided for this embodiment Figure 1 Internal structure diagram at point D;

[0025] Figure 8 This is a three-dimensional structural diagram of the negative pressure suction head provided in this embodiment;

[0026] Figure 9 This is a three-dimensional structural diagram of the sampling bottle provided in this embodiment;

[0027] Figure 10 A three-dimensional structural diagram of the sealing sleeve provided in this embodiment.

[0028] The labels in the diagram represent the following:

[0029] 1. Handle, 2. Core rod, 3. Limiting plate, 4. Outer tube, 5. Negative pressure suction head, 6. Sampling bottle, 7. Sealing sleeve, 8. Perforated partition, 9. Silicone ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 4 As shown, this utility model provides a disposable endometrial sampler, including: an outer tube 4, a negative pressure suction head 5 connected to one end of the outer tube 4 by a thread, and a sampling bottle 6 connected to one end of the outer tube 4 by a thread. The negative pressure suction head 5 and the sampling bottle 6 are sequentially installed inside the outer tube 4.

[0032] A core rod 2 is inserted inside the outer tube 4. A silicone ring 9 is provided at the end of the core rod 2 inside the outer tube 4. The silicone ring 9 is moved inside the outer tube 4 by the core rod 2 so that the endometrial tissue is sucked into the outer tube 4 through the negative pressure suction head 5.

[0033] Furthermore, a handle 1 is provided at the end of the core rod 2 located outside the outer tube 4, through which the core rod 2 can be moved linearly inside and outside the outer tube 4.

[0034] In this embodiment, the negative pressure suction head 5 is first threaded onto the outer tube 4 and inserted into the patient's body. The core rod 2 is pulled outward, so that the core rod 2 can drive the silicone sleeve 9 to move. Subsequently, the endometrial tissue in the patient's body will be sucked into the inside of the outer tube 4.

[0035] Then unscrew the negative pressure suction head 5 to disassemble it, screw the sampling bottle 6 and the threaded end of the outer tube 4 together, shake the end where the bottle is located to allow the endometrial tissue to enter the sampling bottle 6, and then perform pathological examination or HE, immunohistochemistry and other experiments, which can reduce the loss of endometrial tissue in the process of detecting transfer.

[0036] Furthermore, such as Figure 5 and Figure 6 As shown, one end of the outer tube 4 is also connected to a sealing sleeve 7 by a thread. After the sampling bottle 6 is disassembled, the sealing sleeve 7 is screwed onto the outer tube 4 to achieve a seal, which is used for tissue cryopreservation.

[0037] To achieve a threaded connection, a screw is fixedly installed at one end of the outer sleeve 4. The screw is threadedly connected to the negative pressure suction head 5, the sampling bottle 6, and the sealing sleeve 7. The inner walls of the negative pressure suction head 5, the sampling bottle 6, and the sealing sleeve 7 are all provided with threaded grooves that mate with the screw. For example, the inner wall of one end of the sampling bottle 6 has a first threaded groove that mates with the screw. The sampling bottle 6 contains formalin. The sealing sleeve 7 has a groove inside, and its inner wall has a second threaded groove that mates with the screw. The specific structure of the negative pressure suction head 5, the sampling bottle 6, and the sealing sleeve 7 is as follows: Figures 8 to 10 As shown.

[0038] The outer diameter of the core rod 2 is smaller than the inner diameter of the outer tube 4, and the outer diameter of the silicone ring 9 is at least the same as the inner diameter of the outer tube 4.

[0039] A hollow partition 8 is also fixedly installed inside the outer tube 4. The core rod 2 can slide along the inner hole of the hollow partition 8 so that the silicone ring 9 moves to the position of the hollow partition 8. Figure 1 and Figure 7 As shown.

[0040] The diameter of the hollow partition 8 is slightly larger than that of the core rod 8mm, so it does not restrict the movement of the core rod 2. However, since the outer diameter of the silicone ring 9 is at least the same as the inner diameter of the outer tube 4, the silicone ring 9 will be blocked when it is pulled to the hollow partition 8. In this way, the hollow partition 8 is completely blocked by the silicone ring 9, and the suctioned endometrial tissue can form a closed space inside the outer tube 4.

[0041] The outer surface of the core rod 2 is provided with a limiting plate 3. The distance between the limiting plate 3 and the silicone ring 9 is the same as the length of the outer tube 4. The limiting plate 3 can limit the distance that the core rod 2 is inserted into the inner tube 4, so as to prevent the silicone ring 9 inside the outer tube 4 from being pushed out.

[0042] The working principle of the disposable endometrial sampler in this embodiment is as follows:

[0043] Before the sampler is used, that is, before the sampler is inserted into the patient's body and before the core rod 2 is pulled, the outer tube 4 is in a closed vacuum state.

[0044] When using the sampler, screw the negative pressure suction head 5 onto the outer tube 4 and insert it into the patient's body. Then pull the core rod 2 to move it, so that the core rod 2 can move the silicone sleeve 9. Subsequently, the endometrial tissue in the patient's body will be sucked into the inside of the outer tube 4.

[0045] Then unscrew the negative pressure suction head 5, remove the sealing film from the mouth of the sampling bottle 6, screw the sampling bottle 6 and the outer tube 4 together, with the bottle facing down, and shake to allow the tissue to enter the sampling bottle 6 and mix with formalin for pathological examination or HE, immunohistochemistry and other experiments, which can reduce the loss of endometrial tissue during the transfer process.

[0046] Finally, after disassembling the sampling bottle 6, the sealing sleeve 7 is screwed onto the outer tube 4 to achieve a seal, which is used for tissue cryopreservation.

[0047] In this embodiment, the negative pressure suction head is designed to be detachably threaded, rather than being installed as a whole with the outer tube. Therefore, after the negative pressure suction head is detached, the sampling bottle can be directly threaded onto the outer tube, allowing for direct acquisition of endometrial tissue inside the outer tube. This reduces the loss and contamination of the endometrial tissue collected from inside the outer tube during the testing and transfer process.

[0048] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A disposable endometrial sampler, characterized in that, include: The outer tube (4), the negative pressure suction head (5) connected to one end of the outer tube (4) by a thread, and the sampling bottle (6) connected to one end of the outer tube (4) by a thread are sequentially installed inside the outer tube (4); A core rod (2) is inserted inside the outer tube (4). A silicone ring (9) is provided at the end of the core rod (2) inside the outer tube (4). The silicone ring (9) is moved inside the outer tube (4) by the core rod (2) so that the endometrial tissue is sucked into the outer tube (4) through the negative pressure suction head (5).

2. The disposable endometrial sampler according to claim 1, characterized in that, One end of the outer sleeve (4) is also connected to a sealing sleeve (7) by thread.

3. The disposable endometrial sampler according to claim 2, characterized in that, A screw is fixedly installed at one end of the outer tube (4), and the screw is connected to the negative pressure suction head (5), the sampling bottle (6) and the sealing sleeve (7) by threads.

4. The disposable endometrial sampler according to claim 1, characterized in that, The outer diameter of the core rod (2) is smaller than the inner diameter of the outer tube (4), and the outer diameter of the silicone ring (9) is at least the same as the inner diameter of the outer tube (4).

5. A disposable endometrial sampler according to claim 1, characterized in that, The inner side of the outer tube (4) is also fixedly installed with a hollow partition (8), and the core rod (2) can slide along the inner hole of the hollow partition (8) so that the silicone ring (9) moves to the position of the hollow partition (8).

6. A disposable endometrial sampler according to claim 1, characterized in that, The outer surface of the core rod (2) is provided with a limiting plate (3), and the distance between the limiting plate (3) and the silicone ring (9) is the same as the length of the outer tube (4).

7. A disposable endometrial sampler according to claim 3, characterized in that, The inner walls of the negative pressure suction head (5), sampling bottle (6) and sealing sleeve (7) are all provided with threaded grooves that cooperate with the screw.

Images