Coagulation biopsy needle, coagulation biopsy kit, and coagulation biopsy device
Patent Information
- Application Number
- CN202521953478.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-09-11
AI Technical Summary
[0004]基于此，有必要针对上述现有活检针穿刺导致血流不止的问题，提供一种电凝活检针、电凝活检套件及电凝活检装置
[0023]上述电凝活检针、电凝活检套件及电凝活检装置，由于第一电极和第二电极能够形成针尖凝血回路的一对正负电极，使能量源可向穿刺头施加能量，以使位于穿刺头附近的组织在能量作用下快速凝血，有利于避免穿刺引起的血流不止的情况，使电凝活检针、电凝活检套件及电凝活检装置可达到能在对病患进行治疗时进行有效止血的效果，有利于缩短手术时长，减少手术伤害。
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Figure CN224699219U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to electrocoagulation biopsy needles, electrocoagulation biopsy kits, and electrocoagulation biopsy devices. Background Technology
[0002] A biopsy needle is a medical device used in minimally invasive surgery to take tissue samples from various organs such as the breast, thyroid, kidney, liver, and body surface.
[0003] Currently, when using biopsies to sample or remove lesions, the biopsy needle must first be inserted into or beside the tissue. Then, negative pressure is used to draw the lesion tissue through a sampling slot into the puncture tube of the biopsy needle. During the puncture process, the tip of the needle can cut blood vessels within the tissue, causing continuous bleeding. This can affect the doctor's assessment of the lesion, prolong the operation time, and increase surgical harm to the patient. Utility Model Content
[0004] Therefore, it is necessary to provide an electrocoagulation biopsy needle, an electrocoagulation biopsy kit, and an electrocoagulation biopsy device to address the problem of uncontrollable bleeding caused by existing biopsy needle punctures.
[0005] According to one aspect of this application, an electrocoagulation biopsy needle is provided, comprising:
[0006] The puncture assembly includes a puncture tube and a puncture head disposed at the front end of the puncture tube. A sampling groove is provided on the outer wall of the front end of the puncture tube, and the puncture tube and the puncture head are insulated from each other.
[0007] A cutting assembly includes a cutting tube, the front end of which is provided with a cutting section. The cutting tube is disposed inside the puncture tube and can reciprocate along the axial direction of the puncture tube, so that the cutting section can cut the tissue entering the puncture tube from the sampling groove.
[0008] The outer wall of the puncture tube is formed with a first electrode, and the outer surface of the puncture head is formed with a second electrode. The first electrode and the second electrode are used to connect to the two opposite polarity terminals of the energy source.
[0009] In one embodiment, the outer wall of the puncture tube includes:
[0010] An insulating region, wherein the insulating region is covered by a first insulating layer;
[0011] An exposed area is provided at the front end of the insulating area to form the first electrode;
[0012] A first electrical connection region is used for electrical connection with a connection terminal of the energy source.
[0013] In one embodiment, the puncture tube further includes an insulating ring, the puncture head includes a tip, the second electrode is formed on the outer surface of the tip, and the insulating ring is axially spaced between the tip and the puncture tube.
[0014] In one embodiment, the puncture assembly further includes a conductive tube, which is fitted inside the puncture tube and outside the cutting tube. The conductive tube is insulated from both the puncture tube and the cutting tube. The puncture head is connected to the front end of the conductive tube so that the puncture head can be electrically connected to a connection terminal of the energy source via the conductive tube.
[0015] In one embodiment, the outer wall of the conductive tube is provided with a second insulating layer to insulate the conductive tube from the puncture tube, and the conductive tube is provided with a second electrical connection area for electrical connection with a corresponding connection terminal of the energy source; and / or; the cutting tube is covered with a third insulating layer to insulate the cutting tube from the conductive tube.
[0016] In one embodiment, the puncture head includes a connecting portion and a tip disposed at the front end of the connecting portion, the connecting portion being disposed inside the conductive tube.
[0017] In one embodiment, the puncture assembly further includes an insulating ring, an axial limiting surface is provided on the tip facing the rear end of the connecting portion, the front end of the insulating ring is in contact with the axial limiting surface, the rear end of the insulating ring and the puncture are in contact with the front end of the conductive tube; the front end of the conductive tube is in contact with the axial limiting surface.
[0018] In one embodiment, the puncture tube is connected to a first conductive element, and the puncture head is connected to a second conductive element. The first conductive element and the second conductive element are used to connect to the opposite polarity terminals of the energy source.
[0019] According to another aspect of this application, an electrocoagulation biopsy kit is provided, including a biopsy handle and an electrocoagulation biopsy needle as described in any of the above embodiments, wherein the electrocoagulation biopsy needle is detachably connected to the biopsy handle.
[0020] According to another aspect of this application, an electrocoagulation biopsy device is provided, comprising:
[0021] An electrocoagulation biopsy kit, the electrocoagulation biopsy kit including a biopsy handle and an electrocoagulation biopsy needle as described in any of the above embodiments, the electrocoagulation biopsy needle being detachably connected to the biopsy handle;
[0022] A biopsy host is used to connect to the biopsy handle. The biopsy host is equipped with an energy source, and the energy source has two connection terminals with opposite polarities.
[0023] The aforementioned electrocoagulation biopsy needle, electrocoagulation biopsy kit, and electrocoagulation biopsy device, because the first and second electrodes can form a pair of positive and negative electrodes for the needle tip coagulation circuit, allow the energy source to apply energy to the puncture head, so that the tissue near the puncture head can quickly coagulate under the action of energy. This helps to avoid uncontrollable bleeding caused by puncture, enabling the electrocoagulation biopsy needle, electrocoagulation biopsy kit, and electrocoagulation biopsy device to achieve effective hemostasis during patient treatment, which helps to shorten the operation time and reduce surgical damage. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of an electrocoagulation biopsy device according to some embodiments of this application.
[0025] Figure 2 for Figure 1 A magnified view of part A.
[0026] Figure 3 This is a schematic diagram of the structure of an electrocoagulation biopsy kit according to some embodiments of this application.
[0027] Figure 4 for Figure 3 A magnified view of part B.
[0028] Figure 5 for Figure 3 A magnified view of part C.
[0029] Figure 6 This is a schematic diagram of the structure between the drive assembly and the cutting tube of an electrocoagulation biopsy needle according to some embodiments of this application.
[0030] Figure label:
[0031] 1. Puncture assembly;
[0032] 11. Puncture tube; 111. Insulated area; 112. Exposed area; 113. First electrical connection area;
[0033] 12. Piercing head; 121. Tip; 122. Connecting part;
[0034] 13. Insulating ring;
[0035] 14. Conductive tube; 141. Second insulating layer; 142. Second electrical connection area;
[0036] 15. First conductive element; 16. Second conductive element;
[0037] 2. Cutting assembly; 21. Cutting tube; 22. Cutting section; 23. Third insulation layer;
[0038] 3. Sampling slot; 31. First front end contour;
[0039] 4. Drive assembly; 41. First drive component; 42. Second drive component; 43. Fixed base; 44. First movable sleeve; 45. Second movable sleeve; 46. Third movable sleeve;
[0040] 5. Outer casing;
[0041] 6. Collection box;
[0042] 7. Energy source. Detailed Implementation
[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms 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 application 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 application.
[0045] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0049] See Figure 1 and Figure 3 This application provides an embodiment of an electrocoagulation biopsy needle applicable to electrocoagulation biopsy kits and devices. For ease of understanding, in one possible implementation, the electrocoagulation biopsy device includes a biopsy unit (not shown) and an electrocoagulation biopsy kit. The kit includes a biopsy handle (not shown) and an electrocoagulation biopsy needle, which can be mounted on the biopsy handle, and the handle provides sampling power to the needle.
[0050] The electrocautery biopsy needle includes a puncture assembly 1 for performing puncture operations and a cutting assembly 2 for performing cutting operations.
[0051] See Figure 1 and Figure 2The puncture assembly 1 includes a puncture tube 11 and a puncture head 12 disposed at the front end of the puncture tube 11. A sampling groove 3 is formed on the outer wall of the front end of the puncture tube 11. The puncture tube 11 and the puncture head 12 are insulated from each other. It is understood that the puncture tube 11 has a rear end and a front end arranged along its axial direction. The puncture head 12 is disposed on the front end of the puncture tube 11 and has a tip for penetrating skin, tissue, or other target materials. The sampling groove 3 is formed on the outer wall of the front end of the puncture tube 11 near the puncture head 12. After the puncture head 12 penetrates the target tissue, a portion of the tissue will enter the sampling groove 3 under negative pressure, so that the sampling groove 3 can collect the target tissue.
[0052] The cutting assembly 2 includes a cutting tube 21, with a cutting section 22 at its front end. The cutting tube 21 is located inside the puncture tube 11 and can reciprocate along the axial direction of the puncture tube 11, allowing the cutting section 22 to cut the tissue entering the puncture tube 11 from the sampling groove 3. Specifically, the cutting section 22 is a cutting edge located on the outer wall of the front end of the cutting tube 21, and the cutting edge is an annular edge extending circumferentially along the cutting tube 21. When the cutting tube 21 reciprocates along the axial direction of the puncture tube 11, the cutting edge of the cutting section 22 can cut the tissue entering the puncture tube 11 from the sampling groove 3, and the tissue cut by the cutting tube 21 is adsorbed into the collection box 6 at the rear end of the puncture tube 11 under negative pressure, thus completing the sampling of the tissue inside the puncture tube 11. It should be noted that the negative pressure for adsorbing the tissue is usually provided by a negative pressure source connected to the cutting tube. The specific connection method can be an existing method or another method, as long as it can provide the negative pressure to draw the tissue into the puncture tube and collect the tissue.
[0053] More specifically, the electrocautery biopsy needle also includes a drive assembly 4, which is connected to the cutting tube 21 to drive the cutting tube 21 to reciprocate and / or rotate axially within the puncture tube 11, thereby cutting the tissue within the sampling groove 3.
[0054] The outer wall of the puncture tube 11 is formed with a first electrode, and the outer surface of the puncture head 12 is formed with a second electrode. The first electrode and the second electrode are used to connect the two opposite polarity connection terminals of the energy source 7, so that the first electrode and the second electrode can form a pair of positive and negative electrodes of the needle tip coagulation circuit. The energy source 7 can apply energy to the first electrode and the second electrode to stop bleeding at the puncture site located at the puncture head 12.
[0055] It should be noted that in the above embodiments, the energy source 7 can be used to generate high-frequency current, the first polarity terminal can be a positive or negative terminal, and the second polarity terminal can be a negative or positive terminal. In actual implementation, the first polarity terminal and the second polarity terminal can be integrated into the same interface, or they can correspond to different interfaces.
[0056] It should also be emphasized that the corresponding appendices in this implementation... Figure 1 The diagram only shows the wiring principle between the energy source 7 and the electrocautery biopsy needle. In actual implementation, the energy source 7 can exist independently of the biopsy host or be integrated into the biopsy host.
[0057] In summary, the electrocoagulation biopsy needle of this application, because the first electrode and the second electrode can form a pair of positive and negative electrodes for the needle tip coagulation circuit, allows the energy source 7 to apply energy to the puncture head 12, so that the tissue near the puncture head 12 can quickly coagulate under the action of energy, thereby achieving rapid and effective hemostasis. This enables the electrocoagulation biopsy needle, electrocoagulation biopsy kit, and electrocoagulation biopsy device to achieve effective hemostasis during patient treatment, which is beneficial to shorten the operation time and reduce surgical damage.
[0058] See Figure 2 , Figure 4 and Figure 5 In one embodiment, the outer wall of the puncture tube 11 includes an insulating region 111, an exposed region 112, and a first electrical connection region 113. The insulating region 111 is covered with a first insulating layer to effectively isolate the current on the outer wall of the puncture tube 11, ensuring medical safety. The exposed region 112 is located at the front end of the insulating region 111 to form a first electrode. The first electrical connection region 113 is used for electrical connection with a connection terminal of the energy source 7, so that the first connection terminal of the energy source 7 can be electrically connected to the first electrode through the first electrical connection region 113.
[0059] Specifically, the sampling groove 3 has a first front profile 31 facing the rear of the sampling groove 3. This first front profile 31 is located at the intersection of the exposed area 112 and the insulating area 111, so that no large area of current passes through the edge profile of the sampling groove 3, thereby reducing the possibility of energy burning of the tissue passing through the sampling groove 3 and helping to avoid energy damage to the tissue to be sampled. Furthermore, when cutting the tissue, the first front profile 31 and the cutting part work together on the tissue, so the energy of the first front profile 31 can accelerate the tissue cutting speed during the cutting process and simultaneously stop the bleeding of the tissue at the cut site. It can be understood that, except for the exposed area 112 and the first electrical connection area 113, the outer wall of the puncture tube 11 is the insulating area 111. After the first insulating layer covers the outer wall of the puncture tube 11, only the sampling groove 3 and the first electrical connection area 113 on the exposed area 112 are exposed. In this way, the energy can pass through the first exposed area 112 in a more concentrated manner, resulting in better hemostasis.
[0060] The first insulating layer can be an insulating coating or 13 insulating rings. In the embodiments of this application, the first insulating layer is an insulating coating.
[0061] See Figure 2 and Figure 4In one embodiment, the puncture tube 11 further includes an insulating ring 13, the puncture head 12 includes a tip 121, a second electrode is formed on the outer surface of the tip 121, and the insulating ring 13 is axially spaced so that two electrodes of opposite polarity can be formed on the tip 121 and the puncture tube 11, thereby forming a needle tip coagulation circuit.
[0062] Specifically, the puncture head 12 includes a tip 121 and a connecting portion 122 connected to the rear end of the tip 121. The connecting portion 122 is disposed inside the conductive tube 14. The tip 121 has an axial limiting surface facing the rear end of the connecting portion 122. The front end of the insulating ring 13 contacts and is connected to the axial limiting surface, and the rear end of the insulating ring 13 is connected to the front end of the puncture tube 11. Both the insulating ring 13 and the puncture tube 11 are sleeved outside the connecting portion 122, and the front end of the conductive tube 14 contacts and is connected to the axial limiting surface. This structure can achieve insulation between the puncture head 12 and the puncture tube 11 through the insulating ring 13, and can also place part of the puncture head 12 inside the puncture tube 11, thereby improving the structural tightness. The insulating ring 13 can be made of silicone rubber, PVC, PE, PTFE, XLPE, or ceramic materials.
[0063] See Figure 2 and Figure 4 In order to enable the puncture head 12, which is insulated from the puncture tube 11, to be electrically connected to the energy source 7, in one embodiment, the puncture assembly 1 further includes a conductive tube 14, which is sleeved inside the puncture tube 11 and outside the cutting tube 21. The conductive tube 14 is insulated from the puncture tube 11 and the cutting tube 21 respectively. The puncture head 12 is connected to the front end of the conductive tube 14 so that the puncture head 12 can be electrically connected to a connection terminal of the energy source 7 through the conductive tube 14.
[0064] Specifically, see Figure 4 The conductive tube 14 is simultaneously sleeved on the outside of both the cutting tube 21 and the connecting part 122. This ensures the stability of the conductive tube 14 between the cutting tube 21 and the puncture tube 11, while allowing the puncture head 12 to conduct electricity through the connecting part 122. The insulating ring 13 and the puncture tube 11 are both sleeved on the outside of the conductive tube 14. This further ensures the stability of the conductive tube 14 between the cutting tube 21 and the puncture tube 11, while preventing short circuits caused by contact between the puncture tube 11 and the puncture head 12.
[0065] Understandable, please refer to Figure 4 and Figure 5The outer wall of the conductive tube 14 is provided with a second insulating layer 141 to insulate the conductive tube 14 from the puncture tube 11, preventing a short circuit between the conductive tube 14 and the puncture tube 11 when the energy source 7 applies energy to the conductive tube 14. The conductive tube 14 is provided with a second electrical connection area 142 for electrical connection with a corresponding connection terminal of the energy source 7, so that the energy source 7 can apply energy to the conductive tube 14 through the second electrical connection area 142, thereby allowing the energy to act on the puncture site via the puncture head 12. The second insulating layer 141 can be an insulating coating or an insulating sleeve. In the embodiments of this application, the second insulating layer 141 is an insulating coating.
[0066] See Figure 2 and Figure 5 The cutting tube 21 is covered with a third insulating layer 23 to insulate it from the conductive tube 14. The outer circumferential surface of the third insulating layer 23 abuts against the inner circumferential surface of the conductive tube 14 to ensure stability between the conductive tube 14 and the cutting tube 21 while preventing short circuits caused by contact between them. The third insulating layer 23 can be an insulating coating or an insulating sleeve. In the embodiments of this application, the third insulating layer 23 is an insulating coating.
[0067] Furthermore, in the embodiments of this application, the sampling groove 3 penetrates the conductive tube 14 to ensure that the cutting part 22 located inside the conductive tube 14 can normally cut the tissue within the sampling groove 3. It is understood that the sampling groove 3 opens onto the insulating area 111 of the puncture tube 11 and extends radially along the puncture tube 11 and the conductive tube 14 for a distance equal to the sum of the wall thickness of the puncture tube 11, the gap between the puncture tube 11 and the conductive tube 14, and the wall thickness of the conductive tube 14.
[0068] See Figure 4 and Figure 5 In one embodiment, the puncture tube 11 is connected to a first conductive element 15, and the puncture head 12 is connected to a second conductive element 16. The first conductive element 15 and the second conductive element 16 are used to connect the two polarity terminals of the energy source 7 so that the energy source 7 can be electrically connected to the puncture tube 11 and the puncture head 12.
[0069] Specifically, the first conductive element 15 is disposed on the first electrical connection area 113 of the puncture tube 11, and the second conductive element 16 is disposed on the second electrical connection area 142 of the conductive tube 14. The energy source 7 can be electrically connected to the exposed area 112 and the puncture head 12 through the first conductive element 15 and the second conductive element 16, respectively. When the first conductive element 15 is electrically connected to the first connection terminal of the energy source 7, and the second conductive element 16 is electrically connected to the second connection terminal of the energy source 7, the exposed area 112 and the puncture head 12 can form a pair of positive and negative electrodes of the needle tip coagulation circuit. The energy source 7 can apply energy to the puncture assembly 1 to stop bleeding at the puncture site located at the puncture head 12, so that the electrocoagulation biopsy needle can achieve effective hemostasis when treating patients.
[0070] Furthermore, in the embodiments of this application, the first conductive element 15 and the second conductive element 16 are both electrode springs. Through the spring structure and elastic contacts of the electrode springs, the energy source 7 can have a stable electrical connection with the puncture assembly 1 and the cutting assembly 2, and ensure that the electrical connection remains reliable after frequent use and multiple insertions and removals.
[0071] See Figure 3 and Figure 6 In one embodiment, the drive assembly 4 includes a first drive member 41, a second drive member 42, and a fixed base 43. The fixed base 43 is connected to the cutting tube 21, the first drive member 41 is drivenly connected to the fixed base 43 to drive the cutting tube 21 to rotate within the puncture tube 11, and the second drive member 42 is drivenly connected to the fixed base 43 to drive the cutting tube 21 to reciprocate axially within the puncture tube 11.
[0072] Specifically, the first driving member 41 is a rotary driving gear, and the second driving member 42 is a reciprocating driving gear. The driving assembly 4 also includes a first movable sleeve 44, a second movable sleeve 45, and a third movable sleeve 46. The first driving member 41 and the first movable sleeve 44 are coaxially sleeved on the outside of the puncture tube 11, and the first movable sleeve 44 and the first driving member 41 are fixedly connected so that when the first driving member 41 rotates, the first movable sleeve 44 rotates accordingly. The fixed seat 43 is slidably connected to the first movable sleeve 44 along the axial direction of the puncture tube 11, so that the fixed seat 43 can rotate with the first movable sleeve 44 to drive the cutting tube 21 to rotate, and can also reciprocate back and forth relative to the first movable sleeve 44 along the axial direction of the puncture tube 11 to drive the cutting tube 21 to reciprocate back and forth.
[0073] The second movable sleeve 45 is coaxially sleeved on the outside of the first movable sleeve 44. The second driving member 42 is coaxially connected to the second movable sleeve 45 so that when the second driving member 42 rotates, the second movable sleeve 45 can rotate accordingly. One axial side of the third movable sleeve 46 is threadedly connected to the second movable sleeve 45, and the other axial side of the third movable sleeve 46 is connected to the fixed seat 43 so that when the second driving member 42 drives the second movable sleeve 45 to rotate, the third movable sleeve 46 can reciprocate back and forth along the axial direction of the puncture tube 11, thereby driving the cutting tube 21 on the fixed seat 43 to reciprocate back and forth.
[0074] More specifically, in the embodiments of this application, in order to improve structural stability, the fixing seat 43 is an annular seat body to increase the contact area between the fixing seat 43 and the first movable sleeve 44 and the third movable sleeve 46.
[0075] To enable the fixed base 43 to both reciprocate under the drive of the third movable sleeve 46 and rotate under the drive of the first movable sleeve 44, a first annular locking structure is provided on one axial side of the fixed base 43, and a second annular locking structure is provided on the inner circumferential surface of the third movable sleeve 46. The first and second annular locking structures are engaged to allow the first annular locking structure to both rotate within the second annular locking structure and reciprocate under the drive of the second annular locking structure. The first and second annular locking structures can be annular groove and annular block, or annular block and annular groove, respectively.
[0076] A first sliding structure is provided on the other side of the axial direction of the fixed base 43, and a second sliding structure is provided on the outer circumferential surface of the first movable sleeve 44. The first sliding structure and the second sliding structure are slidably connected along the axial direction of the puncture tube 11, so that the first sliding structure can rotate under the drive of the second sliding structure, and can also reciprocate back and forth on the second sliding structure. The first sliding structure and the second sliding structure can be a slide groove and a slider, or a slider and a slide groove, respectively.
[0077] See Figure 2 In one embodiment, the cutting section 22 is formed with a third electrode, and the first electrode is electrically connected to the first connection terminal of the energy source 7. Both the second and third electrodes are electrically connected to the second connection terminal of the energy source 7, so that the first and second electrodes can form a pair of positive and negative electrodes for the needle tip coagulation circuit, and simultaneously form a pair of positive and negative electrodes for cutting the coagulation circuit. The energy source 7 can stop bleeding at the puncture site located at the puncture head 12 by applying energy to the puncture assembly 1, and can also stop bleeding at the cutting section 22 located at the cutting section 22 by applying energy to the cutting assembly 2, thereby improving the effectiveness of the electrocoagulation biopsy needle.
[0078] Furthermore, the aforementioned design, which allows the needle tip coagulation circuit and the cutting coagulation circuit to share a single connection terminal, effectively simplifies the device structure and improves operational convenience. This allows surgeons to focus more on the surgical procedure, enhancing its precision and safety. Understandably, sharing a single connection terminal reduces the number of electrodes and related wiring, thereby simplifying the overall device structure. This not only lowers manufacturing costs but also makes the device more compact, lightweight, and easy to carry and operate. During surgery, surgeons do not need to frequently change electrodes with different functions, resulting in smoother procedures, saving time, and increasing efficiency. This allows surgeons to focus more on the surgical procedure, improving its precision and safety. Therefore, the electrocoagulation biopsy needle of this application not only improves surgical efficiency and safety but also reduces equipment costs and operational complexity, offering significant advantages.
[0079] See Figure 2 and Figure 3 Embodiments of this application also provide an electrocoagulation biopsy kit, including a biopsy handle and an electrocoagulation biopsy needle as described in any of the above embodiments, wherein the electrocoagulation biopsy needle is detachably connected to the biopsy handle. Specifically, the electrocoagulation biopsy needle further includes a housing 5 that houses the puncture assembly 1 and the cutting assembly 2, and the housing 5 is snap-fitted to the biopsy handle. The biopsy handle has a collection box 6 for receiving and storing the cut tissue sample, and the rear end of the cutting tube 21 passes through and extends into the collection box 6.
[0080] More specifically, the puncture assembly 1 includes a puncture tube 11 and a puncture head 12 disposed at the front end of the puncture tube 11. A sampling groove 3 is formed on the outer wall of the front end of the puncture tube 11, and the puncture tube 11 and the puncture head 12 are insulated from each other. The cutting assembly 2 includes a cutting tube 21, and a cutting part 22 is provided at the front end of the cutting tube 21. The cutting tube 21 is disposed inside the puncture tube 11 and can reciprocate along the axial direction of the puncture tube 11 so that the cutting part 22 can cut the tissue that enters the puncture tube 11 from the sampling groove 3.
[0081] The outer wall of the puncture tube 11 is formed with a first electrode, and the outer surface of the puncture head 12 is formed with a second electrode. The first electrode and the second electrode are used to connect the two opposite polarity connection terminals of the energy source 7, so that the first electrode and the second electrode can form a pair of positive and negative electrodes of the needle tip coagulation circuit. The energy source 7 can apply energy to the puncture head 12 and the puncture tube 11 to stop bleeding at the puncture site located at the puncture head 12.
[0082] The electrocoagulation biopsy kit of this application, because the first and second electrodes of the electrocoagulation biopsy needle can form a pair of positive and negative electrodes for the needle tip coagulation circuit, allows the energy source 7 to apply energy to the puncture head 12, so that the tissue near the puncture head 12 can quickly coagulate under the action of energy, which helps to avoid uncontrollable bleeding caused by puncture. The electrocoagulation biopsy kit can achieve the effect of effective hemostasis when treating patients, which helps to shorten the operation time and reduce surgical damage.
[0083] See Figure 1 and Figure 2 The embodiments of this application also provide an electrocoagulation biopsy device, including an electrocoagulation biopsy kit and a biopsy host. The electrocoagulation biopsy kit includes a biopsy handle and an electrocoagulation biopsy needle as described in any of the above embodiments. The electrocoagulation biopsy needle is detachably connected to the biopsy handle. The biopsy host is used to connect to the biopsy handle, and the biopsy host is equipped with an energy source 7, which has two connection terminals with opposite polarities.
[0084] Specifically, the biopsy handle and the electrocautery biopsy needle are fitted together with the housing 5 that houses the puncture assembly 1 and the cutting assembly 2. More specifically, the puncture assembly 1 includes a puncture tube 11 and a puncture head 12 disposed at the front end of the puncture tube 11. A sampling groove 3 is formed on the outer wall of the front end of the puncture tube 11, and the puncture tube 11 and the puncture head 12 are insulated from each other. The cutting assembly 2 includes a cutting tube 21, the front end of which is provided with a cutting section 22. The cutting tube 21 is disposed inside the puncture tube 11 and can reciprocate along the axial direction of the puncture tube 11 so that the cutting section 22 can cut the tissue that enters the puncture tube 11 from the sampling groove 3.
[0085] The outer wall of the puncture tube 11 is formed with a first electrode, and the outer surface of the puncture head 12 is formed with a second electrode. The first electrode and the second electrode are used to connect the two opposite polarity connection terminals of the energy source 7, so that the first electrode and the second electrode can form a pair of positive and negative electrodes of the needle tip coagulation circuit. The energy source 7 can apply energy to the puncture assembly 1 to stop bleeding at the puncture site located at the puncture head 12.
[0086] In summary, the electrocoagulation biopsy device of this application, because the first and second electrodes of the electrocoagulation biopsy needle can form a pair of positive and negative electrodes for the needle tip coagulation circuit, allows the energy source 7 to apply energy to the puncture head 12, so that the tissue near the puncture head 12 can quickly coagulate under the action of energy, which helps to avoid uncontrollable bleeding caused by puncture. This allows the electrocoagulation biopsy device to achieve effective hemostasis during the treatment of patients, which helps to shorten the operation time and reduce surgical damage.
[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. An electrocoagulation biopsy needle, characterized in that, include: The puncture assembly includes a puncture tube and a puncture head disposed at the front end of the puncture tube. A sampling groove is provided on the outer wall of the front end of the puncture tube, and the puncture tube and the puncture head are insulated from each other. A cutting assembly includes a cutting tube, the front end of which is provided with a cutting section. The cutting tube is disposed inside the puncture tube and can reciprocate along the axial direction of the puncture tube, so that the cutting section can cut the tissue entering the puncture tube from the sampling groove. The outer wall of the puncture tube is formed with a first electrode, and the outer surface of the puncture head is formed with a second electrode. The first electrode and the second electrode are used to connect to the two opposite polarity terminals of the energy source.
2. The electrocoagulation biopsy needle according to claim 1, characterized in that, The outer wall of the puncture tube includes: An insulating region, wherein the insulating region is covered by a first insulating layer; An exposed area is provided at the front end of the insulating area to form the first electrode; A first electrical connection region is used for electrical connection with a connection terminal of the energy source.
3. The electrocoagulation biopsy needle according to claim 1, characterized in that, The puncture tube further includes an insulating ring, the puncture head includes a tip, the second electrode is formed on the outer surface of the tip, and the insulating ring is axially spaced between the tip and the puncture tube.
4. The electrocoagulation biopsy needle according to claim 1, characterized in that, The puncture assembly also includes a conductive tube, which is fitted inside the puncture tube and outside the cutting tube. The conductive tube is insulated from both the puncture tube and the cutting tube. The puncture head is connected to the front end of the conductive tube so that the puncture head can be electrically connected to a connection terminal of the energy source via the conductive tube.
5. The electrocoagulation biopsy needle according to claim 4, characterized in that, The outer wall of the conductive tube is provided with a second insulating layer to insulate the conductive tube from the puncture tube, and the conductive tube is provided with a second electrical connection area for electrical connection with the corresponding connection terminal of the energy source; and / or; the cutting tube is covered with a third insulating layer to insulate the cutting tube from the conductive tube.
6. The electrocoagulation biopsy needle according to claim 4, characterized in that, The puncture head includes a connecting portion and a tip disposed at the front end of the connecting portion, the connecting portion being disposed inside the conductive tube.
7. The electrocoagulation biopsy needle according to claim 6, characterized in that, The puncture assembly further includes an insulating ring, and the tip has an axial limiting surface facing the rear end of the connecting portion. The front end of the insulating ring is in contact with the axial limiting surface, and the rear end of the insulating ring and the puncture are in contact with the front end of the conductive tube. The front end of the conductive tube is in contact with the axial limiting surface.
8. The electrocoagulation biopsy needle according to any one of claims 1-7, characterized in that, The puncture tube is connected to a first conductive element, and the puncture head is connected to a second conductive element. The first conductive element and the second conductive element are used to connect to the two terminals of opposite polarities of the energy source.
9. An electrocoagulation biopsy kit, characterized in that, It includes a biopsy handle and an electrocoagulation biopsy needle as described in any one of claims 1-8, wherein the electrocoagulation biopsy needle is detachably connected to the biopsy handle.
10. An electrocoagulation biopsy device, characterized in that, include: An electrocoagulation biopsy kit, comprising a biopsy handle and an electrocoagulation biopsy needle as described in any one of claims 1-8, wherein the electrocoagulation biopsy needle is detachably connected to the biopsy handle; A biopsy host is used to connect to the biopsy handle. The biopsy host is equipped with an energy source, and the energy source has two connection terminals with opposite polarities.