A surgical biopsy sampling device

Abstract

The utility model discloses a surgical test sampling device concretely relates to medical instrument technical field, and including inner sleeve, the top of inner sleeve is detachably placed with pipe cover plate through buckle, the edge of pipe cover plate is equipped with sealing rubber ring, the upper side of pipe cover plate is swingly provided with drive handle through bearing, the bottom of drive handle is detachably installed with piston plate through screw thread, the outside of piston plate and inner sleeve inner wall sliding seal, the top middle position of pipe cover plate is fixedly installed with fixed plate, through sampling accuracy, part device lacks accurate positioning and guide structure, and medical staff is difficult to accurately control sampling head position and depth, and it is easy to cause sampling deviation, and the influence test result, the sealing of pipe cover and inner sleeve, sampling head and inner sleeve etc. Connection is not strict, and the sample is easy to leak when sampling, pollutes the environment, increases the cross infection risk, also can make the sample volume is insufficient, can not satisfy the test.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a surgical examination sampling device. Background Technology

[0002] In the field of surgical laboratory testing, accurate sampling, good sealing, and convenient sample preservation and transfer are crucial for obtaining reliable test results and ensuring surgical safety and patient health.

[0003] Existing patent publication number CN106959221A discloses a surgical examination sampling device, including a sampling tube, a sampling bottle, and a vacuum pump. The sampling bottle has openings at both the top and bottom. A flow-stopping valve is glued to the lower opening of the sampling bottle. This surgical examination sampling device has a simple structure and is easy to operate. The vacuum pump requires no cleaning, avoiding the residue of viruses or bacteria and ensuring the quality of the test samples. The bottle body is marked with graduations, allowing for direct quantitative measurement during liquid aspiration, improving sampling accuracy. It has strong promotional and application value. However, the inventors discovered the following problems with the existing technology during the development of this utility model: While existing surgical sampling devices can meet basic sampling needs, they still have many shortcomings. In terms of sampling accuracy, some devices lack positioning and guiding structures, making it difficult for medical staff to accurately control the position and depth of the sampling head, which can easily lead to sampling deviations and affect test results. Inadequate sealing at the connection points can cause sample leakage during sampling, which can contaminate the surgical environment, increase the risk of cross-infection, and may also result in insufficient sample volume to meet testing requirements.

[0004] Therefore, a surgical examination sampling device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a surgical examination sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surgical examination sampling device, comprising an inner tube, a tube cover plate detachably placed on the top of the inner tube by means of a snap fastener, a sealing ring provided on the edge of the tube cover plate, a drive handle movably mounted on the upper side of the tube cover plate by means of a bearing, a piston plate detachably mounted on the bottom of the drive handle by means of a thread, the outer side of the piston plate slidingly sealing against the inner wall of the inner tube, a fixing plate fixedly mounted at the middle position of the top of the tube cover plate, a sampling head fixedly mounted on the bottom of the inner tube, an outer tube that can slide up and down fitted on the outer side of the inner tube, anti-slip handles symmetrically mounted on the outer side of the outer tube, and a positioning block fixedly mounted on the right side of the outer tube by means of bolts.

[0007] Preferably, the drive handle passes through the tube cover plate, and the lower end of the drive handle extends into the internal space of the inner sleeve. Guide rods are evenly distributed and fixedly installed on the outer side of the inner sleeve along the axial direction, and the guide rods cooperate with the linear bearings preset on the inner side of the outer sleeve.

[0008] Preferably, the inner wall of the outer sleeve is provided with a guide groove along the axial direction. The position of the guide groove corresponds to the arrangement trajectory of the guide rod on the outer side of the inner sleeve. The guide rod cooperates with the groove preset in the guide groove. When the outer sleeve moves axially relative to the inner sleeve, the guide rod is always embedded in the guide groove.

[0009] Preferably, the positioning block has a detachable cylindrical hanging rod inside, and a threaded hole is vertically opened on the top of the positioning block, with a positioning bolt threaded inside the threaded hole.

[0010] Preferably, the bottom outer wall of the inner sleeve is provided with a protective sleeve, and the bottom of the protective sleeve is provided with a through hole. The sampling device is connected to the annular groove at the end of the hanging rod by a rope. When the sampling device is idle, the protective sleeve covers the sampling head.

[0011] Preferably, a receiving cover is movably connected to the middle left side of the outer tube, and a sample receiving box is provided at the bottom center of the receiving cover. The receiving cover is flexibly connected to the outside of the outer tube by a medical-grade silicone rope.

[0012] The technical effects and advantages of this utility model are as follows: 1. Compared with the prior art, this surgical examination sampling device, by setting guide rods evenly distributed axially on the outer side of the inner tube and cooperating with the linear bearings preset on the inner side of the outer tube, and at the same time, the guide rods are embedded in the grooves preset in the guide grooves on the inner wall of the outer tube, providing precise guidance for the axial movement of the outer tube relative to the inner tube, enabling medical staff to accurately control the position and depth of the sampling head, effectively avoiding sampling deviation, and ensuring accurate acquisition of the target sample.

[0013] 2. Compared with the existing technology, this surgical examination sampling device has a double sealing design, which greatly enhances the overall sealing performance of the device by setting a sealing ring on the edge of the tube cover plate and sliding seal between the outer side of the piston plate and the inner wall of the inner tube. This effectively prevents sample leakage during the sampling process, avoids contamination of the surgical environment and reduces the risk of cross-infection, and ensures sufficient sample volume to meet the testing requirements. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0015] Figure 2 This is a top view of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the inner sleeve of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the outer sleeve of this utility model.

[0018] The attached figures are labeled as follows: 1. Inner sleeve; 2. Tube cover plate; 3. Drive handle; 4. Piston plate; 5. Fixing plate; 6. Guide rod; 7. Sampling head; 8. Outer sleeve; 9. Guide groove; 10. Handle; 11. Positioning block; 12. Hanging rod; 13. Positioning bolt; 14. Protective sleeve; 15. Receiving cover plate; 16. Sample receiving box. Detailed Implementation

[0019] 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.

[0020] Example 1 As attached Figures 1 to 4 The surgical examination sampling device shown includes an inner tube 1. A tube cover plate 2 is detachably placed on the top of the inner tube 1 by a snap fastener. The edge of the tube cover plate 2 is provided with a sealing ring. A drive handle 3 is movably mounted on the upper side of the tube cover plate 2 by a bearing. A piston plate 4 is detachably installed on the bottom of the drive handle 3 by a thread. The outer side of the piston plate 4 slides and seals against the inner wall of the inner tube 1. A fixing plate 5 is fixedly installed at the middle position of the top of the tube cover plate 2. A sampling head 7 is fixedly installed on the bottom of the inner tube 1. An outer tube 8 that can slide up and down is sleeved on the outer side of the inner tube 1. Anti-slip handles 10 are symmetrically installed on the outer side of the outer tube 8. A positioning block 11 is fixedly installed on the right side of the outer tube 8 by bolts.

[0021] Specifically: First, the inner sleeve 1 has a removable cap plate 2 with a sealing ring, which is attached to the top of the inner sleeve 1 via a snap-fit ​​mechanism. This facilitates disassembly and cleaning while effectively preventing sample leakage and ensuring a safe operating environment. Second, the cap plate 2 has a drive handle 3 mounted on its upper side via a bearing, and the bottom piston plate 4 is threaded and removable, allowing for flexible replacement of piston plates 4 of different specifications to meet diverse sampling needs. Third, the outer sleeve 8 can slide up and down, and with the right-side positioning block 11, it can precisely control the sampling depth. Fourth, anti-slip handles 10 are symmetrically installed on the outer side of the outer sleeve 8, making it convenient for medical staff to hold and operate with one hand. Fifth, the sampling head 7 is fixed at the bottom of the inner sleeve 1, which slides and seals with the piston plate 4 and the inner wall of the inner sleeve 1, enabling efficient sample collection. The overall structure is compact and reasonable, improving the convenience, accuracy, and safety of sampling operations.

[0022] Example 2 Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details: In a preferred embodiment, the drive handle 3 passes through the tube cover plate 2, and the lower end of the drive handle 3 extends into the internal space of the inner sleeve 1. Guide rods 6 are evenly distributed and fixedly installed on the outer side of the inner sleeve 1 along the axial direction. The guide rods 6 are made of stainless steel and the surface is polished to reduce frictional resistance. The guide rods 6 cooperate with the linear bearings preset on the inner side of the outer sleeve 8 to prevent the inner sleeve 1 from shifting during operation and to ensure that the piston plate 4 always maintains a vertical movement trajectory, thereby improving the accuracy and repeatability of the sampling operation.

[0023] In a preferred embodiment, the inner wall of the outer sleeve 8 is provided with a guide groove 9 along the axial direction. The position of the guide groove 9 corresponds to the arrangement trajectory of the guide rod 6 on the outer side of the inner sleeve 1, ensuring that a stable sliding fit is formed after the guide rod 6 is fully inserted, while retaining sufficient structural strength. The guide rod 6 cooperates with the pre-set groove in the guide groove 9. When the outer sleeve 8 moves axially relative to the inner sleeve 1, the guide rod 6 is always embedded in the guide groove 9, forming a dual positioning mechanism, which effectively prevents the tube body from tilting or jamming due to uneven operating force during the sampling process.

[0024] In a preferred embodiment, the positioning block 11 has a detachable cylindrical hanging rod 12 installed horizontally inside. The hanging rod 12 is made of stainless steel and its surface is polished to reduce friction. A threaded hole is vertically opened on the top of the positioning block 11, and a positioning bolt 13 is installed inside the threaded hole. When it is necessary to fix the sampling depth, the positioning bolt 13 is rotated so that its lower end presses tightly against the surface of the outer sleeve 8, and the positioning block 11 is temporarily fixed by friction. When it is necessary to adjust the position, the positioning can be loosened by simply rotating it in the opposite direction. With the help of the hanging rod 12, the entire device can be easily suspended on a medical cart or equipment rack.

[0025] In a preferred embodiment, the bottom outer wall of the inner sleeve 1 is provided with a protective sleeve 14 to ensure that the protective sleeve 14 can be securely fitted on the outside of the sampling head 7. The protective sleeve 14 is made of transparent medical-grade plastic and has a through hole at the bottom. It is connected to the annular groove at the end of the hanging rod 12 by a rope. When the sampling device is idle, the protective sleeve 14 covers the sampling head 7, effectively preventing cross-contamination and accidental damage. Before use, medical staff can push the protective sleeve 14 along the axial direction of the inner sleeve 1 to the position of the hanging rod 12 with one hand. At this time, the rope will naturally straighten and keep the protective sleeve 14 hanging, which can avoid loss and make it easy to use at any time.

[0026] In a preferred embodiment, a receiving cover 15 is movably connected to the middle left side of the outer tube 8. The receiving cover 15 is made of medical-grade transparent polycarbonate material with a scratch-resistant surface to facilitate observation of the internal condition. A sample receiving box 16 is provided at the bottom center of the receiving cover 15. The sample receiving box 16 is a transparent sterile container with internal dividers for storing different samples. The receiving cover 15 is flexibly connected to the outside of the outer tube 8 by a medical-grade silicone rope to ensure that the receiving cover 15 does not drag on the ground when fully opened and can naturally fit the surface of the outer tube 8 when closed to avoid interfering with the sampling operation.

[0027] In this embodiment, the inner sleeve 1 is a metric device that can be purchased directly from the market and is known to those skilled in the art. It can be customized or selected according to actual needs. Here we are just using it and have not made any structural or functional improvements to it. We will not go into details here.

[0028] The working process of this utility model is as follows: When in use, firstly, when the device is in an idle state, the protective sleeve 14, which is connected to the inner hanging rod 12 of the positioning block 11 by a rope on the bottom outer wall of the inner sleeve 1, completely covers the sampling head 7 to protect it and prevent contamination and damage. Next, medical staff grasp the anti-slip handles 10 symmetrically installed on the outside of the outer sleeve 8. Because the guide rods 6, evenly distributed axially on the outside of the inner sleeve 1, cooperate with the linear bearings pre-set on the inside of the outer sleeve 8, and the guide rods 6 are embedded in the pre-set grooves of the guide grooves 9 on the inner wall of the outer sleeve 8, the direction and distance of movement can be precisely controlled when the outer sleeve 8 moves axially relative to the inner sleeve 1. After moving the outer sleeve 8 to bring the sampling head 7 to the target position, the drive handle 3, which is movable via a bearing on the upper side of the tube cover plate 2, is rotated. Because a piston plate 4 is detachably installed at the bottom of the drive handle 3 via threads, and the outer side of the piston plate 4 slides and seals against the inner wall of the inner sleeve 1, rotating the drive handle 3 can move the piston plate 4 within the inner sleeve 1, thereby generating negative pressure. The sampling head 7, fixedly installed at the bottom of the inner sleeve 1, then draws the sample. After sampling, the receiving cover 15, flexibly connected to the middle left side of the outer sleeve 8 via a medical-grade silicone rope, is opened. The sample is placed into the sample receiving box 16 at the center of the bottom of the receiving cover 15, and then the receiving cover 15 is closed, allowing for safe sample transfer. The above describes the working principle of this surgical examination and sampling device.

Claims

1. A surgical examination sampling device, comprising an inner cannula (1), characterized in that: The top of the inner sleeve (1) is detachably fitted with a pipe cover plate (2) by a snap fastener. The edge of the pipe cover plate (2) is provided with a sealing ring. The upper side of the pipe cover plate (2) is movably fitted with a drive handle (3) by a bearing. The bottom of the drive handle (3) is detachably fitted with a piston plate (4) by a thread. The outer side of the piston plate (4) slides and seals with the inner wall of the inner sleeve (1). A fixing plate (5) is fixedly installed at the middle position of the top of the pipe cover plate (2). A sampling head (7) is fixedly installed at the bottom of the inner sleeve (1). An outer sleeve (8) that can slide up and down is fitted on the outer side of the inner sleeve (1). Anti-slip handles (10) are symmetrically installed on the outer side of the outer sleeve (8). A positioning block (11) is fixedly installed on the right side of the outer sleeve (8) by bolts.

2. The surgical examination sampling device according to claim 1, characterized in that: The drive handle (3) passes through the pipe cover plate (2), and the lower end of the drive handle (3) extends into the internal space of the inner sleeve (1). The outer side of the inner sleeve (1) is uniformly distributed along the axial direction and fixedly installed with guide rods (6). The guide rods (6) cooperate with the linear bearings preset on the inner side of the outer sleeve (8).

3. A surgical examination sampling device according to claim 2, characterized in that: The inner wall of the outer sleeve (8) is provided with a guide groove (9) along the axial direction. The position of the guide groove (9) corresponds to the arrangement trajectory of the guide rod (6) on the outer side of the inner sleeve (1). The guide rod (6) cooperates with the groove preset in the guide groove (9). When the outer sleeve (8) moves axially relative to the inner sleeve (1), the guide rod (6) is always embedded in the guide groove (9).

4. A surgical examination sampling device according to claim 2, characterized in that: The positioning block (11) has a detachable cylindrical hanging rod (12) inside, and a threaded hole is vertically opened above the positioning block (11), and a positioning bolt (13) is installed inside the threaded hole.

5. A surgical examination sampling device according to claim 4, characterized in that: The bottom outer wall of the inner sleeve (1) is provided with a protective sleeve (14), and the bottom of the protective sleeve (14) is provided with a through hole. It is connected to the annular groove at the end of the hanging rod (12) by a rope. When the sampling device is idle, the protective sleeve (14) covers the sampling head (7).

6. A surgical examination sampling device according to claim 4, characterized in that: A receiving cover plate (15) is movably connected to the middle left side of the outer tube (8). A sample receiving box (16) is provided at the bottom center of the receiving cover plate (15). The receiving cover plate (15) is flexibly connected to the outside of the outer tube (8) by a medical-grade silicone rope.

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