Medical clinical tumor biopsy sampling device

Abstract

The invention discloses a medical clinical tumor biopsy sampling device which comprises a sampling mantle fiber, one end of the sampling mantle fiber is fixedly connected with a tail end connecting cylinder, the other end of the sampling mantle fiber is fixedly connected with a storage sliding sleeve, a rotating guide wire is slidably mounted in the sampling mantle fiber, a sliding piston is slidably mounted in the storage sliding sleeve, and the rotating guide wire is fixedly connected with the storage sliding sleeve. A threaded sampling cone is fixedly connected to one side of the sliding piston, the other side of the sliding piston is fixedly connected with a rotating guide wire, a sampling groove is formed in the surface of the threaded sampling cone, scraping teeth are fixedly connected into the sampling groove, a connecting plug is fixedly connected to one side of the tail end connecting cylinder, and the connecting plug is communicated with the interior of the tail end connecting cylinder. Certain air is blown into or pumped out of the tail end connecting cylinder, the air is conducted to the storage sliding sleeve through the sampling mantle fiber to push the sliding piston to move, then the threaded sampling cone is controlled to stretch out and retract, and the situation that when a sampling groove passes through the gastroscope, the interior of the gastroscope is damaged is avoided.

Description

Technical Field

[0001] The present invention relates to a biopsy sampling device, and particularly to a tumor biopsy sampling device for medical clinical use. Background Art

[0002] When a pathological tumor is found during a gastroscopy, a biopsy device needs to be used to take a sample for pathological examination to clarify the nature of the lesion.

[0003] For example, a biopsy sampling device for a gastroscope disclosed in Chinese Patent with the publication number CN212438694U includes a threaded drill bit with a spiked end, a driving device with a rotating shaft inside, a control device, a power supply, and a bendable sleeve. There is a sampling port on the threaded drill bit. One end of the rotating shaft of the driving device is rotatably and fixedly connected to the threaded drill bit. One end of the sleeve is fixedly connected to the other end of the driving device. The power supply and the control device are arranged at the other end of the sleeve. The power supply is electrically connected to the driving device through a wire passing through the sleeve. When the control device is turned on to conduct the driving device and the power supply, the driving device drives the threaded drill bit to rotate. When in use, the spiked end of the threaded drill bit pierces into the hard pathological tissue to play a fixing role to prevent the sampling device from sliding, and the rotating threaded drill bit can penetrate into the tissue for sampling. However, this patent has the following problems:

[0004] When sampling, the device needs to be inserted into the patient's stomach through the patient's esophagus, and the gastroscope is used to send the device into the patient's stomach. The drill bit at its end will scratch the inner wall of the gastroscope tube, causing damage to the gastroscope. And if it is directly inserted alone, it will also cause damage to the patient's esophagus and the like. Summary of the Invention

[0005] The purpose of the present invention is to provide a tumor biopsy sampling device for medical clinical use to solve the problems presented in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A tumor biopsy sampling device for medical clinical use includes a sampling wire sleeve. One end of the sampling wire sleeve is fixedly connected to a terminal connection cylinder, and the other end of the sampling wire sleeve is fixedly connected to a storage sliding sleeve. A rotating wire is slidably installed inside the sampling wire sleeve. A sliding piston is slidably installed inside the storage sliding sleeve. One side of the sliding piston is fixedly connected to a threaded sampling cone, and the other side of the sliding piston is fixedly connected to the rotating wire. Sampling grooves are formed on the surface of the threaded sampling cone, and scraping teeth are fixedly connected inside the sampling grooves.

[0007] Preferably, an insertion joint is fixedly connected to one side of the terminal connection cylinder. The insertion joint is internally connected to the terminal connection cylinder, and an injection head is inserted into the insertion joint.

[0008] Preferably, a cylinder sleeve is embedded and installed at the end of the terminal connection cylinder. A sliding cylinder column is slidably installed inside the cylinder sleeve. One end of the sliding cylinder column is fixedly connected to a limiting block, and the other side of the limiting block is fixedly connected to the rotating wire.

[0009] Preferably, a rotary handle is fixedly connected to the other end of the sliding cylinder rod.

[0010] Preferably, an installation groove is formed in the outer wall of the sliding piston, and a sealing ring is clamped in the installation groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. By injecting or extracting a certain amount of air into the end connection cylinder, the air is conducted to the storage sliding sleeve through the sampling thread to push the sliding piston to move, thereby controlling the extension and retraction of the threaded sampling cone, and avoiding damage to the inside of the gastroscope when the sampling groove passes through the gastroscope.

[0013] 2. By using the rotary handle, the threaded sampling cone can be driven to rotate. The threaded sampling cone is integrally conical, and a thread groove is provided on the surface. During the process of the threaded sampling cone being screwed in, the scraping teeth can scrape off the diseased tissue and store it inside the sampling groove, and can be screwed into the depth of the patient's lesion for sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a sectional view of the present invention;

[0016] Figure 3 is the Figure 2 enlarged view at A in the present invention;

[0017] Figure 4 is a partial semi-sectional view of the present invention.

[0018] In the figure: 1. Sampling thread; 2. End connection cylinder; 201. Plug connector; 202. Sliding cylinder rod; 203. Rotary handle; 204. Limiting block; 3. Injection head; 4. Rotary guide wire; 5. Storage sliding sleeve; 501. Sliding piston; 6. Threaded sampling cone; 601. Sampling groove; 602. Scraping teeth. DETAILED DESCRIPTION OF THE INVENTION

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1-4 shown, the present invention has the following specific embodiments.

[0021] Embodiment 1

[0022] A tumor biopsy sampling device for medical clinical use, including a sampling wire 1, one end of the sampling wire 1 is fixedly connected with a terminal connecting cylinder 2, the other end of the sampling wire 1 is fixedly connected with a storage sliding sleeve 5, a rotating wire 4 is slidably installed in the sampling wire 1, a sliding piston 501 is slidably installed in the storage sliding sleeve 5, one side of the sliding piston 501 is fixedly connected with a threaded sampling cone 6, the other side of the sliding piston 501 is fixedly connected with the rotating wire 4, a sampling groove 601 is formed on the surface of the threaded sampling cone 6, and scraping teeth 602 are fixedly connected inside the sampling groove 601.

[0023] In this embodiment, the device can be transported to the lesion location in the patient's stomach through a gastroscope. Under normal conditions, the threaded sampling cone 6 will be stored inside the storage sliding sleeve 5. As shown in Figure 2 , at this time, the threaded sampling cone 6 is completely retracted into the storage sliding sleeve 5, which can avoid damage to the internal pipeline of the gastroscope during transportation. After manually transporting the storage sliding sleeve 5 to the lesion location by using the gastroscope, the terminal connecting cylinder 2 is communicated with the inside of the sampling wire 1. A certain amount of high-pressure air is pumped into the terminal connecting cylinder 2. The terminal connecting cylinder 2 is linked with the inside of the storage sliding sleeve 5 through the sampling wire 1. Then, the air will be transported to the storage sliding sleeve 5 through the sampling wire 1. The high-pressure air will push the sliding piston 501 to move. The movement of the sliding piston 501 will drive the threaded sampling cone 6 to move, and then the threaded sampling cone 6 will be pushed out of the storage sliding sleeve 5 and stabbed into the lesion location. Subsequently, rotating the rotating wire 4 can drive the sliding piston 501 to rotate. The rotation of the sliding piston 501 can drive the threaded sampling cone 6 to rotate. The threaded sampling cone 6 is conical as a whole, and a threaded groove is provided on the surface. Therefore, the rotation of the threaded sampling cone 6 will drill deep into the patient's lesion. During the process of the threaded sampling cone 6 being screwed in, the scraping teeth 602 can scrape off the lesion tissue and store it inside the sampling groove 601. Then, the air inside the terminal connecting cylinder 2 is sucked out, and by pulling the sampling wire 1, the threaded sampling cone 6 can be removed from the drill hole and reset and stored inside the storage sliding sleeve 5 again, and then the device can be taken out of the gastroscope to complete the biopsy sampling.

[0024] Example 2

[0025] One side of the terminal connecting cylinder 2 is fixedly connected with a plug connector 201. The plug connector 201 is communicated with the inside of the terminal connecting cylinder 2. An injection head 3 is plugged on the plug connector 201. A cylinder sleeve is embedded and installed at the end of the terminal connecting cylinder 2. A sliding cylinder column 202 is slidably installed inside the cylinder sleeve. One end of the sliding cylinder column 202 is fixedly connected with a limiting block 204. The other side of the limiting block 204 is fixedly connected with the rotating wire 4. The other end of the sliding cylinder column 202 is fixedly connected with a rotating handle 203.

[0026] ​​In this embodiment, the injection head 3 is connected to the end of the insertion joint 201. By using the injection head 3, a certain amount of air can be pushed into the inner part of the end connection cylinder 2 or the air inside the end connection cylinder 2 can be sucked out, so as to artificially control the air pressure inside the end connection cylinder 2. By using the air pressure, the extension and retraction of the threaded sampling cone 6 can be controlled. By using the sliding fit between the sliding cylinder rod 202 and the cylinder sleeve, while the end connection cylinder 2 is slidably connected to the sliding cylinder rod 202, the inside of the end connection cylinder 2 can be kept in a sealed state as much as possible. The limit block 204 limits the stroke of the sliding cylinder rod 202 to prevent the sliding cylinder rod 202 from moving out of the inner part of the end connection cylinder 2. By using the rotary handle 203, the sliding cylinder rod 202 can be driven to rotate. When the sliding cylinder rod 202 rotates, the rotating guide wire 4 will be driven to rotate by the limit block 204, and then the threaded sampling cone 6 will be driven to rotate by the rotating guide wire 4.

[0027] Embodiment 3

[0028] An installation groove is formed on the outer wall of the sliding piston 501, and a sealing ring is clamped in the installation groove.

[0029] In this embodiment, by installing a plurality of sealing rings on the outer wall of the sliding piston 501, the direct gap between the storage sliding sleeve 5 and the sliding piston 501 can be blocked, so that the sliding piston 501 is pushed by air like a piston, and then the extension and retraction of the threaded sampling cone 6 can be controlled.

[0030] The working principle and usage process of the present invention: The gastroscope can deliver the device to the lesion location in the patient's stomach. After manually delivering the storage sliding sleeve 5 to the lesion location by using the gastroscope, the end of the injection head 3 is inserted into the insertion joint 201. A certain amount of air is blown into the inner part of the end connection cylinder 2 by using the injection head 3. The air will be delivered to the storage sliding sleeve 5 through the sampling thread sleeve 1. The air will push the sliding piston 501 to drive the threaded sampling cone 6 to extend and stab at the lesion location. Subsequently, the rotary handle 203 is used to drive the sliding cylinder rod 202 to rotate. When the sliding cylinder rod 202 rotates, the rotating guide wire 4 will drive the threaded sampling cone 6 to rotate. When the threaded sampling cone 6 rotates, it will drill deep into the patient's lesion. During the process of the threaded sampling cone 6 being screwed in, the scraping teeth 602 will scrape off the lesion tissue and store it inside the sampling groove 601. When the threaded sampling cone 6 drills to an appropriate depth, the air inside the end connection cylinder 2 is sucked out by using the injection head 3, and in cooperation with pulling the sampling thread sleeve 1, the threaded sampling cone 6 is directly pulled out of the lesion location. At this time, a certain amount of lesion tissue will also be scraped off inside the thread groove of the threaded sampling cone 6, and the position of the threaded sampling cone 6 will be reset and stored inside the storage sliding sleeve 5. At this time, the device can be withdrawn.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tumor biopsy sampling device for medical clinical use, including a sampling wire (1), characterized in that: One end of the sampling threading die (1) is fixedly connected to an end connecting cylinder (2), the other end of the sampling threading die (1) is fixedly connected to a storage sliding sleeve (5), a rotating guide wire (4) is slidably installed in the sampling threading die (1), a sliding piston (501) is slidably installed in the storage sliding sleeve (5), one side of the sliding piston (501) is fixedly connected to a threaded sampling cone (6), the other side of the sliding piston (501) is fixedly connected to the rotating guide wire (4), a sampling groove (601) is formed on the surface of the threaded sampling cone (6), and scraping teeth (602) are fixedly connected inside the sampling groove (601).

2. The tumor biopsy sampling device for medical clinical use according to claim 1, wherein: One side of the end connecting cylinder (2) is fixedly connected to a plug connector (201), the plug connector (201) is communicated with the inside of the end connecting cylinder (2), and an injection head (3) is inserted on the plug connector (201).

3. The tumor biopsy sampling device for medical clinical use according to claim 1, wherein: A cylinder sleeve is embedded and installed at the end of the end connecting cylinder (2), a sliding cylinder column (202) is slidably installed in the cylinder sleeve, one end of the sliding cylinder column (202) is fixedly connected to a limiting block (204), and the other side of the limiting block (204) is fixedly connected to the rotating guide wire (4).

4. The medical clinical tumor biopsy sampling device according to claim 3, characterized in that: The other end of the sliding cylinder column (202) is fixedly connected to a rotating handle (203).

5. A tumor biopsy sampling device for medical clinical use according to claim 1, characterized in that: An installation groove is formed on the outer wall of the sliding piston (501), and a sealing ring is clamped in the installation groove.

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