Gynecological tumor sampling device
By designing a gynecological tumor sampling device, utilizing the principle of negative pressure and solid-liquid separation components, the problems of secondary contamination and the influence of body fluids during the tumor sampling process are solved, achieving contamination-free transfer and efficient separation of samples, and ensuring the accuracy of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN CANCER HOSPITAL (FUJIAN CANCER INST FUJIAN CANCER PREVENTION & CONTROL CENT)
- Filing Date
- 2025-01-08
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, during the gynecological tumor sampling process, tumor samples are prone to secondary contamination during metastasis, and a large amount of body fluid affects the accuracy of test results.
A gynecological tumor sampling device was designed, comprising a sampling tube, a sampling needle, a piston, a push-pull rod, a sample storage tube, and a solid-liquid separation component. The device uses the principle of negative pressure to sample and achieve solid-liquid separation of the tumor within the sample storage tube, thus avoiding secondary contamination and the influence of body fluids.
It achieves contamination-free transfer of tumor samples and efficient solid-liquid separation, ensuring the accuracy of test results.
Smart Images
Figure CN224112705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a gynecological tumor sampling device. Background Technology
[0002] Gynecological tumors are a type of cancer. To confirm the nature and type of the tumor, a biopsy is required to sample the tumor site, thus guiding subsequent treatment. In current techniques, gynecological tumor sampling often involves aspirating biomarkers using a puncture needle. After sampling, the sample needs to be transferred to a suitable storage tube, which may cause secondary contamination and affect the accuracy of the test results. Furthermore, a large amount of bodily fluid is usually collected during tumor sampling and transferred to the storage tube along with the tumor sample. This large amount of fluid can interfere with the subsequent extraction and testing of the tumor sample. Therefore, a tumor sampling device that addresses these issues is needed. Utility Model Content
[0003] To address the existing problems in gynecological tumor sampling, where biopsy is often performed using a needle to extract biomarkers, and the samples need to be transferred to a suitable storage tube after sampling, which may cause secondary contamination and affect the accuracy of the test results; and the fact that a large amount of bodily fluid is usually collected by the sampling device during tumor sampling and transferred to the storage tube along with the tumor solids, which affects the subsequent extraction and testing of the tumor solids, a gynecological tumor sampling device is invented.
[0004] The present invention relates to a gynecological tumor sampling device, comprising a sampling cylinder, wherein a sampling needle is connected to one end of the sampling cylinder, a piston is slidably connected inside the sampling cylinder, a push-pull rod is connected to the piston, one end of the push-pull rod extends outside the sampling cylinder, one end of the sampling needle extends into the sampling cylinder, a connector is connected to the sampling cylinder below the end of the sampling needle inside the sampling cylinder, a sample storage tube is connected to the connector, a handle is connected to the sampling cylinder, and a solid-liquid separation component is provided inside the sample storage tube, enabling the separation of tumor solids and human body fluids in the sampled tumor sample through the solid-liquid separation component.
[0005] Preferably, the outer end face of the piston is covered with a sealing gasket, and the outer end face of the piston is provided with a plurality of snap-fit grooves. The sealing gasket has snap-fit protrusions extending from it, and the snap-fit protrusions snap into the snap-fit grooves.
[0006] Preferably, a limiting head is threaded to the end of the sampling cylinder away from the sampling needle, one end of the push-pull rod passes through the limiting head, and a push-pull plate is connected to the end of the push-pull rod outside the sampling cylinder.
[0007] Preferably, the sampling tube at the connector has a groove, and an arc-shaped baffle is connected to the sampling tube above the groove via a connecting rod.
[0008] Preferably, the separation assembly includes a separation plate and a separation cone. The separation plate is connected to the inner wall of the middle part of the sample storage tube, and the separation cone is connected to the end face axis of the separation plate. The separation plate has a plurality of first separation holes, the separation cone has a second separation hole that penetrates the separation plate, and the separation cone has a plurality of third separation holes that communicate with the second separation holes.
[0009] Preferably, the end of the sample storage tube away from the sampling tube is provided with a drain port, and a sealing rubber is connected to the drain port.
[0010] The technical solution of this utility model can achieve the following beneficial effects: (1) By using the sampling needle, piston and push-pull rod, the sampling needle is inserted into the tumor, and the piston is moved by pulling the push-pull rod, so as to use the sampling needle to sample the tumor; (2) The handle makes it easy to hold the sampling tube; (3) The connector and the storage tube make it easy to store the tumor sample after sampling in the storage tube, avoiding secondary transfer of the tumor sample and causing contamination; (4) The separation component makes it easy to separate the tumor solid and human body fluid in the tumor sample, which is convenient for subsequent tumor sample detection; (5) The connecting rod and the baffle make it easy to block and limit the tumor sample taken and discharged by the sampling needle, avoid spraying onto the piston, and guide the tumor sample to be transported into the storage tube; (6) The drain port and the sealing rubber make it easy to discharge the human body fluid separated in the storage tube through the needle tube through the sealing rubber, reduce the amount of human body fluid in the storage tube, and facilitate subsequent detection of tumor solid in the storage tube; The technical solution of this utility model has a wide application prospect in the field of medical device technology. Attached Figure Description
[0011] Figure 1 This is a cross-sectional view of a gynecological tumor sampling device according to the present invention.
[0012] Figure 2 for Figure 1 Enlarged view of a portion of region A in the middle.
[0013] Figure 3 for Figure 1 Enlarged view of a portion of region B in the middle.
[0014] The components are as follows: 1. Sampling cylinder, 2. Sampling needle, 3. Connector, 4. Sample storage tube, 5. Baffle, 6. Connecting rod, 7. Piston, 8. Snap-fit groove, 9. Snap-fit protrusion, 10. Sealing gasket, 11. Push-pull rod, 12. Push-pull plate, 13. Limiting head, 14. Handle, 15. Separation plate, 16. First separation hole, 17. Separation cone, 18. Second separation hole, 19. Third separation hole, 20. Drain port. Detailed Implementation
[0015] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0016] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] This application discloses a gynecological tumor sampling device. (Refer to...) Figure 1 , Figure 3The system includes a sampling cylinder 1, which utilizes the negative pressure created within the sampling cylinder 1 to extract tumor samples. A sampling needle 2 is sealed and heat-fused to one end of the sampling cylinder 1, connecting and communicating with it. This allows the sampling needle 2 to puncture the tumor, and the negative pressure within the sampling cylinder 1 to extract the tumor sample. A piston 7 is slidably connected inside the sampling cylinder 1, and a push-pull rod 11 is heat-fused to the piston 7, forming a single unit. Moving the push-pull rod 11 moves the piston 7 within the sampling cylinder 1, creating a negative pressure structure for tumor sampling. A sealing gasket 10 covers the outer end face of the piston 7, sealing the gap between the piston 7 and the sampling cylinder 1. This, in turn, allows the piston 7 to move within the sampling cylinder 1, maintaining the negative pressure structure. The outer end face of the piston 7 is provided with several snap-fit grooves 8, and the sealing gasket 10 has snap-fit protrusions 9 extending from it. The snap-fit protrusions 9 snap into the snap-fit grooves 8, so that the sealing gasket 10 and the piston 7 are limited by the snap-fit grooves 8 and the snap-fit protrusions 9, so that the sealing gasket 10 and the piston 7 can be connected more firmly together.
[0018] Reference Figure 1 One end of the push-pull rod 11 extends outside the sampling cylinder 1, facilitating pushing or pulling the push-pull rod 11 from the outside. A limiting head 13 is threadedly connected to the end of the sampling cylinder 1 away from the sampling needle 2, allowing the limiting head to be detachably connected to the end of the sampling cylinder 1 away from the sampling needle 2. This limits the piston 7 within the sampling cylinder 1, preventing it from moving out of the sampling cylinder 1. One end of the push-pull rod 11 passes through the limiting head 13. A push-pull plate 12 is heat-welded to the end of the push-pull rod 11 outside the sampling cylinder 1, connecting the push-pull plate 12 to the end of the push-pull rod 11 away from the piston 7 to form a single unit. This allows the push-pull plate 12 to facilitate pushing or pulling the push-pull rod 11.
[0019] Reference Figure 1 , Figure 2One end of the sampling needle 2 extends into the sampling cylinder 1, allowing the tumor sample obtained through puncture by the sampling needle 2 to be delivered into the sampling cylinder 1. A connector 3 is connected to the sampling cylinder 1 below the end of the sampling needle 2 inside the sampling cylinder 1, allowing the connector 3 to be connected to the sampling cylinder 1 to form a single unit. A groove is formed on the sampling cylinder 1 at the connector 3, allowing the extracted and delivered tumor sample to collect in the groove and be fully discharged through the connector 3. An arc-shaped baffle 5 is connected to the sampling cylinder 1 above the groove via a connecting rod 6. The center of the arc-shaped groove end face of the baffle 5 corresponds to the axis of the sampling needle 2, so that the baffle 5 is connected to the sampling cylinder 1 via the connecting rod 6. This allows the tumor sample extracted by the sampling needle 2 through the negative pressure principle structure inside the sampling cylinder 1 to be blocked by the baffle 5, preventing the tumor sample from being sprayed onto the piston 7. Furthermore, the tumor sample sprayed onto the baffle 5 can flow along the baffle 5 into the groove below, and then be discharged from the sampling cylinder 1 through the connector 3.
[0020] Reference Figure 1 , Figure 2 A sample storage tube 4 is detachably and threadedly fixed to the connector 3, allowing the sampled tumor sample to be transported into the sample storage tube 4. The sample storage tube 4 contains a solid-liquid separation assembly, which separates the tumor solids from the body fluids in the sampled tumor sample. The separation assembly includes a separation plate 15 and a separation cone 17. The separation plate 15 is thermally fused to the inner wall of the middle section of the sample storage tube 4, forming a single unit. The separation cone 17 is thermally fused to the axis of the end face of the separation plate 15, forming a single unit. The separation plate 15 has several first separation holes 16, allowing the body fluids from the tumor sample flowing onto the separation plate 15 to flow into the sample storage tube 4 below the separation plate 15. The separation cone 17 has a second separation hole 18 that penetrates the separation plate 15. The separation cone 17 has several third separation holes 19 that connect to the second separation hole 18. This allows the human body fluid in the tumor sample at the separation cone 17 to be guided to the sample storage tube 4 below the separation plate 15 through the second separation hole 18 and the third separation hole 19. The separation cone 17 also prevents the solid tumor in the tumor sample from accumulating together, which would affect the flow of human body fluid in the tumor sample to the bottom of the separation plate 15 and thus affect the solid-liquid separation of the tumor sample.
[0021] Reference Figure 1The sample storage tube 4 has a drain port 20 at the end away from the sampling tube 1, and a sealing rubber is connected to the drain port 20. The drain port 20 is sealed by the sealing rubber, so that the human body fluid in the tumor sample in the sample storage tube 4 can be extracted by the needle penetrating the sealing rubber, so that the tumor solid in the tumor sample in the sample storage tube 4 can be stored separately, and the sealing rubber ensures that the drain port 20 of the sample storage tube 4 is sealed after the needle is extracted.
[0022] Reference Figure 1 The sampling cylinder 1 is integrally formed by hot melting and has a handle 14, so that the handle 14 and the sampling cylinder 1 are connected together to form a whole, so that the sampling cylinder 1 can be held by hand using the handle 14.
[0023] In use, first connect the sample storage tube 4 to the connector 3 by threading it. Then push the push-pull plate 12 to move the push-pull rod 11 and piston 7 inside the sampling tube 1 until the piston 7 is close to the groove. Next, move the sampling tube 1 and sampling needle 2 as a whole and use the sampling needle 2 to puncture the tumor for sampling. Then, use a syringe to extract and drain the human body fluid in the tumor sample that has flowed into the sample storage tube 4. Finally, screw the sample storage tube 4 off the connector 3 and quickly connect the sealing cap to complete the tumor sample sampling.
[0024] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.
[0025] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A gynecological tumor sampling device, comprising a sampling tube (1), characterized in that, One end of the sampling tube (1) is connected to a sampling needle (2). A piston (7) is slidably connected inside the sampling tube (1). A push-pull rod (11) is connected to the piston (7). One end of the push-pull rod (11) extends outside the sampling tube (1). One end of the sampling needle (2) extends into the sampling tube (1). A connector (3) is connected to the sampling tube (1) below the end of the sampling needle (2) inside the sampling tube (1). A sample storage tube (4) is connected to the connector (3). A handle (14) is connected to the sampling tube (1). A solid-liquid separation component is provided inside the sample storage tube (4), so that the solid tumor in the sampled tumor sample can be separated from the human body fluid through the solid-liquid separation component.
2. The gynecological tumor sampling device according to claim 1, characterized in that, The outer end face of the piston (7) is covered with a sealing gasket (10), and the outer end face of the piston (7) is provided with several snap-fit grooves (8). A snap-fit protrusion (9) extends from the sealing gasket (10), and the snap-fit protrusion (9) snaps into the snap-fit groove (8).
3. The gynecological tumor sampling device according to claim 1, characterized in that, The sampling cylinder (1) is threaded to a limiting head (13) at one end away from the sampling needle (2), and one end of the push-pull rod (11) passes through the limiting head (13). The push-pull rod (11) is connected to a push-pull plate (12) at one end outside the sampling cylinder (1).
4. The gynecological tumor sampling device according to claim 1, characterized in that, A groove is provided on the sampling tube (1) at the connector (3), and an arc-shaped baffle (5) is connected to the sampling tube (1) above the groove via a connecting rod (6).
5. A gynecological tumor sampling device according to claim 1, characterized in that, The separation assembly includes a separation plate (15) and a separation cone (17). The separation plate (15) is connected to the inner wall of the middle part of the sample storage tube (4). The separation cone (17) is connected to the end face axis of the separation plate (15). The separation plate (15) has a plurality of first separation holes (16). The separation cone (17) has a second separation hole (18) that penetrates the separation plate (15). The separation cone (17) has a plurality of third separation holes (19) that connect to the second separation holes (18).
6. A gynecological tumor sampling device according to claim 1, characterized in that, The sample storage tube (4) has a drain port (20) at one end away from the sampling tube (1), and a sealing rubber is connected to the drain port (20).