Ultrasonic suction biopsy needle

Abstract

The utility model provides an ultrasonic suction biopsy needle, which relates to the technical field of medical instruments and comprises a main body, a front rod is arranged at one end of the main body, and a needle head is arranged at one end of the front rod; the outer sleeve is arranged on the outer surface of the main body in a sleeving manner, and the outer sleeve is in threaded meshing connection with the main body; the suction assembly is arranged in the main body and used for being matched with the needle head to suck and sample the diseased part of the patient. According to the device, a needle head can be closed through the control assembly to facilitate needle insertion, in the subsequent use process, the needle head can be conducted to facilitate sample extraction, meanwhile, the suction assembly and the fixing assembly are matched with each other, the suction precision can be improved in a spiral suction control mode, and the suction efficiency is improved. The sample is prevented from being discharged due to mistaken touch in a manner of fixing a locking position, so that the sampling precision and the sample storage stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an ultrasonic aspiration biopsy needle. Background Art

[0002] The disposable endoscopic ultrasonic aspiration biopsy needle is used in conjunction with a flexible endoscope for ultrasound-guided fine needle aspiration biopsy and tissue sampling of gastrointestinal mucosal and extramural injuries, as well as for endoscopic ultrasound-guided fine needle aspiration sampling of tracheal and bronchial submucosal and extraluminal lesions.

[0003] However, in actual use, the common biopsy needles currently on the market, such as the "An Ultrasonic Suction Biopsy Needle" with Chinese Publication No. CN218356261U, have certain defects. First, the needle of the biopsy needle is used as a sampling tool. In order to increase the sampling efficiency and range, the internal opening of the needle is larger than that of the common needle. These large openings will cause the needle to easily enter some tissue blocks when inserting the needle, which will lead to mixing and affecting the sample during actual use. It is difficult to prevent excess tissue blocks from entering while ensuring the insertion efficiency. Second, in the actual sampling process, the common biopsy needle is manually pushed and pulled by the doctor to control the sampling speed. The sampling speed is easy to be too fast and it is easy to accidentally touch the push after the sampling is completed, causing the sample to splash out. It has the defects of low sampling accuracy and poor sample storage stability. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the background technology and provide an ultrasonic aspiration biopsy needle to improve the defects of common biopsy needles on the market, such as difficulty in rapid needle insertion and prevention of entry of excess tissue blocks, and difficulty in improving sampling accuracy and storage stability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic aspiration biopsy needle, comprising: a main body, one end of which is provided with a front rod, one end of which is provided with a needle; an outer sleeve, which is sleeved on the outer surface of the main body, and the outer sleeve and the main body are threadedly engaged with each other; a suction component, which is arranged inside the main body and is used to cooperate with the needle to perform suction sampling on the patient's diseased part; a fixing component, which is arranged between the main body and the outer sleeve and is used to fix the main body and the suction component; and a control component, which is arranged between the front rod and the needle and is used to control the conduction and blocking inside the needle.

[0006] Furthermore, the suction assembly includes: an adsorption chamber opened inside the main body, with an adsorption plate slidably connected inside the adsorption chamber; an adsorption rod arranged on one side of the adsorption plate, a traction plate being provided at the end of the adsorption rod, and the traction plate and the outer sleeve overlapping each other.

[0007] Furthermore, the fixing assembly includes: a positioning cavity opened at the end of the outer sleeve, a positioning ring being slidably connected inside the positioning cavity; a plurality of positioning teeth arranged on one side of the positioning ring, a positioning spring being arranged between the positioning ring and the inner wall of the positioning cavity; a plurality of positioning ports opened on the surface of the traction plate, and the positioning teeth being engaged with the positioning ports.

[0008] Furthermore, the control component includes: an active cavity opened inside the front rod, the active cavity is connected to the adsorption cavity; an active block arranged inside the active cavity, a matching magnet is provided on one side of the active block, a driving block is provided on the surface of the front rod, and an adsorption magnet is provided inside the driving block; two "L"-shaped driving grooves are respectively opened on the surface and inner wall of the front rod, the driving block and the matching magnet are respectively slidably connected with the driving grooves located on the outer surface and inner surface of the front rod; a driving rod is arranged on one side of the active block, an insert block is provided at the end of the driving rod, and the insert block is inserted into the inside of the needle, and the end of the insert block is set in a sharp structure.

[0009] Furthermore, a plurality of push blocks are provided on the surface of the outer sleeve, and the plurality of push blocks are equidistantly distributed along the circumference of the outer sleeve.

[0010] Furthermore, two limiting grooves are provided on the inner wall of the adsorption chamber, limiting blocks are provided on both sides of the adsorption plate, and the limiting blocks are slidably connected to the limiting grooves.

[0011] Furthermore, an anti-slip ring is provided on one side of the traction plate, an anti-slip sleeve ring is provided on one side of the outer sleeve, and the anti-slip sleeve ring is slidably connected to the anti-slip ring.

[0012] Furthermore, the positioning teeth are arranged in a triangular structure, and a plurality of the positioning teeth and the positioning openings are arranged in an equidistant distribution.

[0013] Furthermore, an anti-skid pad is provided on the inner wall of the driving groove, and the surface of the anti-skid pad is frosted.

[0014] Furthermore, a plurality of anti-slip strips are provided on the surface of the driving block, and the anti-slip strips are arranged in a semicircular structure.

[0015] The utility model provides an ultrasonic aspiration biopsy needle, which has the following beneficial effects:

[0016] The advantage of the utility model is that the control component can be used to seal the needle to facilitate needle insertion, and in the subsequent use process, the needle can be turned on to facilitate sample extraction. At the same time, the suction component and the fixing component cooperate with each other, and the suction accuracy can be improved by using a spiral control method, and the fixed locking position can be used to prevent accidental touch and cause the sample to be discharged, thereby improving the sampling accuracy of the device and the sample storage stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a sectional view of the overall structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the movable block of the utility model.

[0020] Figure 4 This is a schematic diagram of the positioning ring structure of the utility model.

[0021] Figure 5 For the utility model Figure 2 A schematic diagram of the enlarged structure in FIG.

[0022] Figure 6 For the utility model Figure 2 Schematic diagram of the enlarged structure at point B in FIG.

[0023] Figure 1-6 In: 1-main body; 101-adsorption chamber; 102-limiting groove; 103-adsorption plate; 104-limiting block; 105-adsorption rod; 106-traction plate; 107-positioning port; 108-anti-slip ring 2-front rod; 201-active chamber; 202-active block; 203-matching magnet; 204-driving rod; 205-insertion block; 206-driving groove; 207-driving block; 208-adsorption magnet; 209-anti-slip pad; 3-needle; 4-outer sleeve; 401-anti-slip ring; 402-positioning chamber; 403-positioning spring; 404-positioning ring; 405-positioning tooth; 406-push block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0025] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0026] The embodiment of the present application provides an ultrasonic aspiration biopsy needle, which can use the control component to seal the needle 3 to facilitate needle insertion, and in the subsequent use process, the needle 3 can be turned on to facilitate sample extraction. At the same time, the suction component and the fixing component cooperate with each other, and the suction accuracy can be improved by spiral control of suction, and the fixed locking position can be used to prevent accidental touch and sample discharge, thereby improving the sampling accuracy of the device and the sample storage stability. The ultrasonic aspiration biopsy needle is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0027] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Example 1

[0029] See also Figure 1-5 In the embodiment, an ultrasonic aspiration biopsy needle is provided, comprising: a main body 1, a front rod 2 is provided at one end of the main body 1, and a needle 3 is provided at one end of the front rod 2; an outer sleeve 4 is sleeved on the outer surface of the main body 1, and the outer sleeve 4 is threadedly engaged with the main body 1; a suction component is provided inside the main body 1, and is used to cooperate with the needle 3 to perform suction sampling on the patient's diseased part; a fixing component is provided between the main body 1 and the outer sleeve 4, and is used to fix the main body 1 and the suction component; and a control component is provided between the front rod 2 and the needle 3, and is used to control the conduction and blocking inside the needle 3; during use, the user can first insert the needle 3 into the patient's diseased part, at this time, the inside of the needle 3 is unblocked by the control component, and the suction component can be used to suction and sample the tissue contacted by the needle 3. After the sampling is completed, the suction component is fixed by the fixing component, so that the needle 3 can be pulled out to complete the rapid sampling.

[0030] Furthermore, the suction assembly includes: an adsorption chamber 101 opened inside the main body 1, and an adsorption plate 103 is slidably connected inside the adsorption chamber 101; an adsorption rod 105 is arranged on one side of the adsorption plate 103, and a traction plate 106 is arranged at the end of the adsorption rod 105, and the traction plate 106 and the outer sleeve 4 are overlapped with each other;

[0031] During use, the user can rotate the outer sleeve 4 so that the outer sleeve 4 can be threadedly engaged with the anti-drop ring 401. Under the action of the threaded engagement connection, the outer sleeve 4 will move along the direction of the main body 1. At this time, the outer sleeve 4 will move and push the traction plate 106 and the adsorption rod 105 to move away from the main body 1. Driven by the adsorption rod 105 and the adsorption plate 103, the adsorption plate 103 can be moved inside the adsorption chamber 101, and negative pressure can be generated inside the adsorption chamber 101, so as to complete suction from the position of the needle 3. At the same time, the threaded engagement connection is used to slowly control the movement of the traction plate 106, and then the amount of suction is controlled, so as to achieve the advantage of high-precision sampling.

[0032] Furthermore, a plurality of push blocks 406 are provided on the surface of the outer sleeve 4, and the plurality of push blocks 406 are equidistantly distributed along the circumference of the outer sleeve 4. During use, the push blocks 406 can allow the user to more conveniently rotate the outer sleeve 4 to achieve threaded engagement with the main body 1, thereby more accurately controlling the amount of suction.

[0033] Furthermore, two limit grooves 102 are opened on the inner wall of the adsorption chamber 101, and limit blocks 104 are provided on both sides of the adsorption plate 103, and the limit blocks 104 are slidably connected to the limit grooves 102. During the suction process, the movement of the adsorption plate 103 inside the adsorption chamber 101 is utilized to generate negative pressure inside the adsorption chamber 101, and then the suction is quickly completed by utilizing the effect of negative pressure. In this process, the sliding connection between the limit block 104 and the limit groove 102 can limit the limit block 104 and the adsorption plate 103, so as to prevent the adsorption plate 103 from getting stuck or offset during the sliding process, thereby effectively improving the stability of the device.

[0034] Further, the fixing assembly includes: a positioning cavity 402 provided at the end of the outer sleeve 4, a positioning ring 404 being slidably connected inside the positioning cavity 402; a plurality of positioning teeth 405 provided on one side of the positioning ring 404, a positioning spring 403 being provided between the positioning ring 404 and the inner wall of the positioning cavity 402; a plurality of positioning openings 107 provided on the surface of the traction plate 106, and the positioning teeth 405 being engaged with the positioning openings 107;

[0035] During use, when the user rotates the outer sleeve 4 to drive the traction plate 106 and the adsorption plate 103 to pull and adsorb, the positioning spring 403 can push the positioning ring 404 and the positioning tooth 405 to move toward the positioning port 107. At this time, the positioning tooth 405 will engage with the positioning port 107 and cooperate and fix the upper traction plate 106 to prevent the outer sleeve 4 from rotating. In this process, the outer sleeve 4 will be positioned and restricted from sliding on the main body 1 by limiting its rotation, further limiting the movement of the traction plate 106 and the adsorption plate 103, and finally preventing the internal pressure of the adsorption chamber 101 from changing, which may cause the sample to fall off easily or too much sample to be drawn in, thereby improving the extraction accuracy of the device.

[0036] Furthermore, the positioning teeth 405 are arranged in a triangular structure, and the plurality of positioning teeth 405 and the positioning opening 107 are equidistantly distributed. During use, the triangular structure can guide the positioning teeth 405 to be inserted into the positioning opening 107 more quickly along the edge of the positioning opening 107, thereby improving the efficiency of the device's plug-in fixation.

[0037] Furthermore, an anti-slip ring 108 is provided on one side of the traction plate 106, and an anti-slip ring 401 is provided on one side of the outer sleeve 4, and the anti-slip ring 401 is slidably connected to the anti-slip ring 108. During use, the sliding connection between the anti-slip ring 108 and the anti-slip ring 401 can be used to limit the device to prevent the position deviation between the outer sleeve 4 and the traction plate 106 during use, which may cause the positioning tooth 405 to be unable to be inserted into the positioning port 107, thereby improving the practicability of the device.

[0038] Example 2

[0039] On the basis of Example 1, the control component includes: an active cavity 201 opened inside the front rod 2, the active cavity 201 is connected with the adsorption cavity 101; an active block 202 arranged inside the active cavity 201, a matching magnet 203 is arranged on one side of the active block 202, a driving block 207 is arranged on the surface of the front rod 2, and an adsorption magnet 208 is arranged inside the driving block 207; two "L"-shaped driving grooves 206 are respectively opened on the surface and the inner wall of the front rod 2, the driving block 207 and the matching magnet 203 are respectively slidably connected between the driving grooves 206 located on the outer surface and the inner surface of the front rod 2; a driving rod 204 is arranged on one side of the active block 202, an insert block 205 is arranged at the end of the driving rod 204, and the insert block 205 is inserted into the inside of the needle 3, and the end of the insert block 205 is arranged in a sharp structure;

[0040] Before inserting the needle 3 into the patient's body, the user can fill the hollow inside the needle 3 at the position of the needle 3 through the insertion block 205, and use the sharp insertion block 205 to cooperate with the needle 3 to quickly insert it into the patient's body;

[0041] When the insertion is completed, the user can slide the driving block 207 along the driving slot 206. At this time, the matching magnet 203 will be affected by the adsorption magnet 208 in the driving block 207, and drive it to slide along the driving slot 206, so that the movable block 202 can rotate horizontally along the "L"-shaped structure first, and then move longitudinally, and drive the driving rod 204 and the insertion block 205 to retract into the front rod 2. At this time, the inside of the needle 3 will be left empty, and the user can use the suction component to draw samples from the patient's affected area. In this way, the needle 3 can have a more efficient insertion efficiency when inserting the needle, and the convenience of drawing liquid can also be maintained when drawing liquid.

[0042] Furthermore, an anti-skid pad 209 is provided on the inner wall of the driving groove 206, and the surface of the anti-skid pad 209 is frosted. During use, the anti-skid pad 209 is used to increase the friction between the driving groove 206 and the driving block 207 on the inner wall of the driving groove 206, so that the driving block 207 will not slide easily under the action of friction, thereby preventing the driving block 207 from sliding and causing the insertion block 205 to move, making it difficult for the needle 3 to be inserted.

[0043] Furthermore, a plurality of anti-slip strips are provided on the surface of the driving block 207, and the anti-slip strips are arranged in a semicircular structure. The plurality of semicircular anti-slip strips can increase the friction between the user's hand and the driving block 207, and allow the user to push the driving block 207 to move more quickly, thereby utilizing the driving block 207 to drive the movable block 202 to rotate and shift, thereby improving the ease of use of the device.

[0044] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0045] The above is a detailed introduction to an ultrasonic aspiration biopsy needle provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. An ultrasonic aspiration biopsy needle, characterized in that: include: A main body (1), wherein one end of the main body (1) is provided with a front rod (2), and one end of the front rod (2) is provided with a needle (3); An outer sleeve (4) is sleeved on the outer surface of the main body (1), and the outer sleeve (4) and the main body (1) are threadedly engaged with each other; A suction assembly, arranged inside the main body (1), used to cooperate with the needle (3) to perform suction sampling on the diseased part of the patient; a fixing assembly, disposed between the main body (1) and the outer sleeve (4), and used for fixing the main body (1) and the suction assembly; and A control component is arranged between the front rod (2) and the needle (3) and is used to control the conduction and blocking inside the needle (3).

2. The ultrasonic aspiration biopsy needle according to claim 1, characterized in that: The suction assembly comprises: An adsorption chamber (101) is provided inside the main body (1), and an adsorption plate (103) is slidably connected inside the adsorption chamber (101); An adsorption rod (105) is arranged on one side of the adsorption plate (103), a traction plate (106) is arranged at the end of the adsorption rod (105), and the traction plate (106) and the outer sleeve (4) are overlapped with each other.

3. The ultrasonic aspiration biopsy needle according to claim 2, characterized in that: The fixing assembly comprises: A positioning cavity (402) is provided at the end of the outer sleeve (4), and a positioning ring (404) is slidably connected inside the positioning cavity (402); A plurality of positioning teeth (405) are arranged on one side of the positioning ring (404), and a positioning spring (403) is arranged between the positioning ring (404) and the inner wall of the positioning cavity (402); A plurality of positioning openings (107) are provided on the surface of the pulling plate (106), and the positioning teeth (405) are engaged with the positioning openings (107).

4. The ultrasonic aspiration biopsy needle according to claim 2, characterized in that: The control component comprises: An active chamber (201) is provided inside the front rod (2), wherein the active chamber (201) is in conduction with the adsorption chamber (101); A movable block (202) is arranged inside the movable cavity (201), a matching magnet (203) is arranged on one side of the movable block (202), a driving block (207) is arranged on the surface of the front rod (2), and an adsorption magnet (208) is arranged inside the driving block (207); Two "L"-shaped driving grooves (206) are respectively provided on the surface and inner wall of the front rod (2), and the driving block (207) and the matching magnet (203) are respectively slidably connected between the driving grooves (206) located on the outer surface and inner surface of the front rod (2); A driving rod (204) is arranged on one side of the movable block (202), and an insert block (205) is arranged at the end of the driving rod (204). The insert block (205) is inserted into the inside of the needle head (3), and the end of the insert block (205) is arranged in a sharp structure.

5. The ultrasonic aspiration biopsy needle according to claim 2, characterized in that: A plurality of push blocks (406) are arranged on the surface of the outer sleeve (4), and the plurality of push blocks (406) are equidistantly distributed along the circumference of the outer sleeve (4).

6. The ultrasonic aspiration biopsy needle according to claim 2, characterized in that: Two limiting grooves (102) are provided on the inner wall of the adsorption chamber (101), limiting blocks (104) are provided on both sides of the adsorption plate (103), and the limiting blocks (104) are slidably connected to the limiting grooves (102).

7. The ultrasonic aspiration biopsy needle according to claim 2, characterized in that: An anti-slip ring (108) is provided on one side of the traction plate (106), and an anti-slip collar (401) is provided on one side of the outer sleeve (4), and the anti-slip collar (401) is slidably connected to the anti-slip ring (108).

8. The ultrasonic aspiration biopsy needle according to claim 3, characterized in that: The positioning teeth (405) are arranged in a triangular structure, and a plurality of the positioning teeth (405) and the positioning openings (107) are arranged in an equidistant distribution.

9. The ultrasonic aspiration biopsy needle according to claim 4, characterized in that: An anti-skid pad (209) is provided on the inner wall of the driving groove (206), and the surface of the anti-skid pad (209) is frosted.

10. The ultrasonic aspiration biopsy needle according to claim 4, characterized in that: A plurality of anti-slip strips are arranged on the surface of the driving block (207), and the anti-slip strips are arranged in a semicircular structure.

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