Biopsy sampling needle guided by vagina ultrasound

Abstract

The utility model relates to the technical field of vaginal biopsy sampling, and discloses a vaginal ultrasound guided biopsy sampling needle, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned at the outer end of the main body mechanism, the main body mechanism comprises a fixed sleeve, a bacteriostatic tube and a mounting component, the bacteriostatic tube is movably mounted on the inner side of the fixed sleeve, and the mounting component is positioned at the outer end of the bacteriostatic tube. The mounting assembly is fixedly mounted on the inner side of the fixed sleeve, and the mounting assembly comprises a conical interface, a sampling needle body and a silica gel threaded sleeve. According to the biopsy sampling needle under vaginal ultrasound guidance, through installation of a main body mechanism, when a sampling needle body passes through a bent part of a vagina, the sampling needle body may be extruded by the side wall of the vagina, so that an antibacterial tube and a silica gel threaded sleeve shake left and right, a telescopic shaft extrudes the inner side of a fixed shaft, and a buffer spring shrinks; the sampling needle body obtains a certain movement range, so that the damage to the side wall of the vagina is reduced, and the safety of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vaginal biopsy sampling, in particular to a biopsy sampling needle under the guidance of vaginal ultrasound. Background Art

[0002] Colposcopy is a doctor's examination of your cervix (and vagina and vulva) more carefully with the help of a magnifying system, but not directly. Instead, the doctor smears the observed area with acetic acid and compound iodine solution before observation. By observing the changes in epithelial color and the characteristics of blood vessels, the doctor can assess whether the cervix has lesions, as well as the location and range of the lesions. Then, a small piece of the suspected lesion is taken and sent to the pathology department for examination (if necessary, the cervical canal tissue must be scraped and sent for examination) to see if there is any lesion. The process of taking a small piece of tissue and sending it to the pathology department is called "biopsy", so biopsy is a step in colposcopy. Vaginal biopsy is a biopsy of the cervix, that is, taking a small piece or several pieces of tissue from the vagina for pathological examination to confirm the diagnosis. It is often used when the cervix is ​​suspected of cancer, or there are suspected cancer cells in the cervical scraping, or there is suspected specific inflammation, such as cervical tuberculosis. Vaginal biopsy can confirm the diagnosis and determine the treatment method.

[0003] The existing patent CN201150548Y single-puncture multi-point sampling biopsy needle document proposes that the utility model includes a sleeve and a needle core located therein, and its special features are: the interior of the needle core is hollow, the outer surface is scaled, and a circular cutting knife is fixed at a certain interval; the sleeve is attached with a scale and an automatic spring for controlling the needle core, the automatic spring is located in the spring jacket, and a handle is fixed on the spring jacket. The utility model can obtain multiple pathological specimens through a single puncture, improve the positive rate and accuracy of pathological diagnosis, and can be widely suitable for clinical applications in hospitals.

[0004] However, although the existing patent CN201150548Y can obtain multiple pathological specimens by one puncture, improve the positive rate and accuracy of pathological diagnosis, and is widely suitable for clinical applications in hospitals, when the device is taking samples, the needle core itself is not elastic and may cause damage to other parts when passing through the curved part. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a biopsy needle under the guidance of vaginal ultrasound to solve the problem mentioned in the above background technology that when the device is taking samples, the needle core itself is not elastic and may cause damage to other parts when passing through a curved part.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biopsy needle under vaginal ultrasound guidance, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located at the outer end of the main mechanism, the main mechanism comprises a fixed sleeve, an antibacterial tube and an installation assembly, the antibacterial tube is movably installed on the inner side of the fixed sleeve, and the installation assembly is fixedly installed on the inner side of the fixed sleeve; the installation assembly comprises a conical interface, a biopsy needle body and a silicone threaded sleeve, the conical interface is fixedly arranged on the upper end of the antibacterial tube, the biopsy needle body is threadedly connected to the conical interface, and the silicone threaded sleeve is fixedly arranged inside the fixed sleeve.

[0009] Preferably, the mounting assembly also includes a fixed shaft, a telescopic shaft and a buffer spring, and the fixed shaft is evenly distributed on the outside of the silicone threaded sleeve. When the sampling needle body passes through the curvature of the vagina, it may be squeezed by the side wall of the vagina, causing the antibacterial tube and the silicone threaded sleeve to swing left and right, and the telescopic shaft is squeezed toward the inside of the fixed shaft.

[0010] Preferably, the telescopic shaft is movably installed on the inner side of the fixed shaft, and the buffer spring is movably installed on the outer side of the telescopic shaft. The telescopic shaft is squeezed toward the inner side of the fixed shaft, causing the buffer spring to contract, so that the collection needle body obtains a certain range of motion, which in turn helps to reduce damage to the side wall of the vagina and effectively improves the safety of the device.

[0011] Preferably, the auxiliary mechanism includes a connector, an extrusion piece, a threaded connection port, a snap-fit ​​seat and a sterile catheter. The connector is movably installed in the fixed sleeve and the antibacterial tube. The connector is threadably connected to the fixed shaft through the threaded connection port, and the opening and closing degree of the extrusion piece can be controlled.

[0012] Preferably, the extrusion piece is fixedly arranged at the upper end of the fixed sleeve, and the threaded connection port is fixedly arranged below the extrusion piece. The opening and closing degree of the extrusion piece can limit the range of motion of the sampling needle body.

[0013] Preferably, the clamping seat is fixedly mounted on the lower end of the fixed sleeve, and the clamping seat is fixedly mounted below the silicone threaded sleeve, and the clamping seat is used to connect a sterile catheter.

[0014] Preferably, the sterile catheter is fixedly mounted on the lower end of the clamping seat, and the sterile catheter is fixedly mounted below the fixed sleeve. The installation of the sterile catheter facilitates the use of the device.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The biopsy needle under vaginal ultrasound guidance, through the installation of the main body, when the needle body passes through the vaginal curvature, it may be squeezed by the vaginal side wall, causing the antibacterial tube and the silicone threaded sleeve to shake left and right, and the inner side of the telescopic axis fixed axis is squeezed, causing the buffer spring to contract, so that the needle body has a certain range of motion, which helps to reduce the damage to the vaginal side wall and effectively improves the safety of the device;

[0017] 2. The biopsy needle under vaginal ultrasound guidance can control the opening and closing degree of the extrusion piece and then limit the range of motion of the needle body by installing the auxiliary mechanism and the connecting piece is threadedly connected to the fixed shaft through the threaded connection port. The installation of the sterile catheter facilitates the use of the device and effectively improves the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the partial installation structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed sleeve of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the material collection needle body of the utility model.

[0022] In the figure: 1. Main body; 101. Fixed sleeve; 102. Antibacterial tube; 103. Mounting assembly; 1031. Conical interface; 1032. Collection needle body; 1033. Silicone threaded sleeve; 1034. Fixed shaft; 1035. Telescopic shaft; 1036. Buffer spring; 2. Auxiliary mechanism; 201. Connector; 202. Extrusion piece; 203. Threaded connection port; 204. Card connector; 205. Sterile catheter. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: a biopsy needle under vaginal ultrasound guidance, comprising a main body mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located at the outer end of the main body mechanism 1, the main body mechanism 1 comprises a fixed sleeve 101, an antibacterial tube 102 and a mounting assembly 103, the antibacterial tube 102 is movably mounted on the inner side of the fixed sleeve 101, and the mounting assembly 103 is fixedly mounted on the inner side of the fixed sleeve 101; the mounting assembly 103 comprises a tapered interface 1031, a biopsy needle body 1032 and a silicone threaded sleeve 1033, the tapered interface The port 1031 is fixedly arranged at the upper end of the antibacterial tube 102, the sampling needle body 1032 is threadedly connected to the conical interface 1031, the silicone threaded sleeve 1033 is fixedly arranged inside the fixed sleeve 101, and the installation assembly 103 also includes a fixed shaft 1034, a telescopic shaft 1035 and a buffer spring 1036. The fixed shaft 1034 is evenly distributed on the outside of the silicone threaded sleeve 1033, the telescopic shaft 1035 is movably installed on the inside of the fixed shaft 1034, and the buffer spring 1036 is movably installed on the outside of the telescopic shaft 1035.

[0025] The auxiliary mechanism 2 includes a connecting piece 201, an extruding piece 202, a threaded connection port 203, a clamping seat 204 and a sterile catheter 205. The connecting piece 201 is movably installed in the middle of the fixed sleeve 101 and the antibacterial tube 102. The extruding piece 202 is fixedly arranged at the upper end of the fixed sleeve 101. The threaded connection port 203 is fixedly arranged below the extruding piece 202. The clamping seat 204 is fixedly installed at the lower end of the fixed sleeve 101. The clamping seat 204 is fixedly installed below the silicone threaded sleeve 1033. The sterile catheter 205 is fixedly installed at the lower end of the clamping seat 204. The sterile catheter 205 is fixedly installed below the fixed sleeve 101. When using a biopsy needle under vaginal ultrasound guidance, when the needle body 1032 passes through the curvature of the vagina, it may be squeezed by the side wall of the vagina, causing the antibacterial tube 102 and the silicone threaded sleeve 1033 to shake left and right, and the telescopic shaft 1035 is squeezed toward the inside of the fixed shaft 1034, causing the buffer spring 1036 to contract, so that the needle body 1032 can have a certain range of motion. The connecting piece 201 is threadedly connected to the fixed shaft 1034 through the threaded connection port 203, which can control the opening and closing degree of the squeezing piece 202, thereby limiting the range of motion of the needle body 1032. The installation of the sterile catheter 205 facilitates the use of the device.

[0026] Working principle: When using a biopsy needle under vaginal ultrasound guidance, when the needle body 1032 passes through the curvature of the vagina, it may be squeezed by the side wall of the vagina, causing the antibacterial tube 102 and the silicone threaded sleeve 1033 to shake left and right, and the telescopic shaft 1035 is squeezed toward the inside of the fixed shaft 1034, causing the buffer spring 1036 to contract, so that the needle body 1032 can have a certain range of motion. The connecting piece 201 is threadedly connected to the fixed shaft 1034 through the threaded connection port 203, which can control the opening and closing degree of the squeezing piece 202, thereby limiting the range of motion of the needle body 1032. The installation of the sterile catheter 205 facilitates the use of the device.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A biopsy needle under vaginal ultrasound guidance, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located at the outer end of the main mechanism (1); the main mechanism (1) comprises a fixed sleeve (101), an antibacterial tube (102) and a mounting assembly (103); the antibacterial tube (102) is movably mounted on the inner side of the fixed sleeve (101); and the mounting assembly (103) is fixedly mounted on the inner side of the fixed sleeve (101); The installation assembly (103) comprises a conical interface (1031), a collection needle body (1032) and a silicone threaded sleeve (1033); the conical interface (1031) is fixedly arranged at the upper end of the antibacterial tube (102); the collection needle body (1032) is threadedly connected to the conical interface (1031); and the silicone threaded sleeve (1033) is fixedly arranged inside the fixed sleeve (101).

2. The transvaginal ultrasound-guided biopsy needle according to claim 1, characterized in that: The installation assembly (103) further comprises a fixed shaft (1034), a telescopic shaft (1035) and a buffer spring (1036), wherein the fixed shaft (1034) is evenly distributed on the outside of the silicone threaded sleeve (1033).

3. The transvaginal ultrasound-guided biopsy needle according to claim 2, characterized in that: The telescopic shaft (1035) is movably mounted on the inner side of the fixed shaft (1034), and the buffer spring (1036) is movably mounted on the outer side of the telescopic shaft (1035).

4. The transvaginal ultrasound-guided biopsy needle according to claim 3, characterized in that: The auxiliary mechanism (2) comprises a connecting piece (201), an extruding piece (202), a threaded connection port (203), a clamping seat (204) and a sterile catheter (205); the connecting piece (201) is movably mounted in the middle of the fixed sleeve (101) and the antibacterial tube (102).

5. The transvaginal ultrasound-guided biopsy needle according to claim 4, characterized in that: The extrusion piece (202) is fixedly arranged at the upper end of the fixed sleeve (101), and the threaded connection port (203) is fixedly arranged below the extrusion piece (202).

6. The transvaginal ultrasound-guided biopsy needle according to claim 5, characterized in that: The clamping seat (204) is fixedly mounted on the lower end of the fixed sleeve (101), and the clamping seat (204) is fixedly mounted below the silicone threaded sleeve (1033).

7. The transvaginal ultrasound-guided biopsy needle according to claim 6, characterized in that: The sterile catheter (205) is fixedly mounted on the lower end of the clamping seat (204), and the sterile catheter (205) is fixedly mounted below the fixed sleeve (101).

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