Developing type puncture needle suite

Abstract

The utility model discloses a developing type puncture needle suite which comprises a hollow outer needle tube and a solid inner needle rod which are connected with an external biopsy gun device, wherein the solid inner needle rod is positioned on an inner cavity of the hollow outer needle tube; a sampling groove is formed in the end, away from the biopsy gun device, of the solid inner needle rod, and at least one section of inner ultrasonic developing area and at least one section of outer ultrasonic developing area which are used for assisting in recognizing the position where puncture reaches a target area and assisting in confirming the sampling position and the sampling length are arranged on the sampling groove and the hollow outer needle tube respectively. Before the biopsy gun device acts, the projection, located at the central axis position of the hollow outer needle tube, of the outer ultrasonic developing area and the projection, located at the central axis position of the hollow outer needle tube, of the inner ultrasonic developing area coincide. The needle biopsy device has the advantages of being capable of assisting an operator in identifying the position of a target area where puncture arrives and accurately confirming the sampling position and the sampling length so as to improve the needle biopsy precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, especially, particularly relates to a development formula puncture needle suite. BACKGROUND

[0002] Biopsy needle is a kind of medical instrument for biopsy, and is suitable for kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, body surface and various tissue organs.Currently, the coaxial biopsy needle (Core Needle Biopsy, "biopsy needle") of side slot cutting is usually used to implement sampling operation on soft tissue;Usually, biopsy needle is mainly composed of reusable biopsy gun device and disposable biopsy needle group, and disposable biopsy needle group is composed of outer needle tube assembly and inner needle rod assembly.

[0003] However, in the process of implementing puncture biopsy diagnosis on human tissue, the operator needs to judge the position of puncture target in advance under ultrasound or CT image, and then drive the inner needle rod assembly of disposable biopsy needle group to reach the target sampling area based on the predetermined launch stroke by reusable biopsy gun device, while the outer needle tube assembly of biopsy needle group is driven by reusable biopsy gun device to cut the target sampling area, so as to cut the tissue of target sampling area and store it in the sampling warehouse of inner needle rod assembly, and then realize biopsy sampling operation on human tissue.The existing biopsy needle group can meet certain needs, but it still has the following problems:

[0004] 1、The existing biopsy needle group can only assist the operator to confirm the position of the area before launching in the process of implementing biopsy sampling, and cannot accurately confirm the actual sampling area position, which leads to the decrease of puncture precision of biopsy needle group;

[0005] 2、In the process of implementing biopsy sampling, the range of disposable biopsy needle group driven by reusable biopsy gun device is the path length of launch trajectory, which is not the actual sampling length, so the actual sampling length cannot be confirmed, and it is difficult to meet the actual application requirements.

[0006] How to solve the above problems has become a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0007] The technical problem to be solved by the utility model is to provide a development formula puncture needle suite that can assist the operator to identify the target area position reached by puncture, accurately confirm the sampling position and sampling length to improve the puncture biopsy precision.

[0008] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0009] A visualized puncture needle kit comprises a hollow outer needle tube and a solid inner needle rod connected with an external biopsy gun device and located in the inner cavity of the hollow outer needle tube; a sampling groove is formed on the end of the solid inner needle rod away from the biopsy gun device; at least one inner ultrasonic visualization area and one outer ultrasonic visualization area are arranged on the sampling groove and the hollow outer needle tube respectively, which are used for assisting in identifying the puncture to the target area position and assisting in confirming the sampling position and the sampling length; wherein, the outer ultrasonic visualization area and the inner ultrasonic visualization area are located at the projection of the central axis of the hollow outer needle tube before the biopsy gun device is operated.

[0010] Preferably, the inner ultrasonic visualization area is arranged on the top and the bottom of the sampling groove, which is used for cooperating with the external ultrasonic or CT to assist in identifying the puncture of the solid inner needle rod to the target area position.

[0011] Preferably, the number of the inner ultrasonic visualization area arranged on the top and the bottom of the sampling groove is one to three, and the inner ultrasonic visualization area is displayed as a plurality of mark straight lines on the external ultrasonic or CT image.

[0012] Preferably, the outer ultrasonic visualization area is arranged on the end of the hollow outer needle tube away from the biopsy gun device, which is used for cooperating with the external ultrasonic or CT to assist in confirming the sampling position and the sampling length of the hollow outer needle tube.

[0013] Preferably, the number of the inner ultrasonic visualization area arranged on the top and the bottom of the sampling groove is one to three, and the inner ultrasonic visualization area is displayed as a plurality of mark straight lines on the external ultrasonic or CT image.

[0014] Preferably, the number of the outer ultrasonic visualization area arranged on the hollow outer needle tube is one to three, and the outer ultrasonic visualization area is displayed as a plurality of mark straight lines on the external ultrasonic or CT image.

[0015] Preferably, the number of the outer ultrasonic visualization area is the same as the number of the inner ultrasonic visualization area arranged on the top of the sampling groove, or the number of the outer ultrasonic visualization area is the same as the number of the inner ultrasonic visualization area arranged on the bottom of the sampling groove.

[0016] Preferably, the inner ultrasonic visualization area and the outer ultrasonic visualization area are any one of triangular pyramid point pits, conical point pits, spherical point pits, grooves or frosted surfaces.

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] In the utility model, hollow outer needle tube and solid inner needle rod are installed in advance on the predetermined position of external biopsy gun device, the projection length and position of outer ultrasonic developing area on the hollow outer needle tube in the central axis direction of the hollow outer needle tube and the projection length and position of inner ultrasonic developing area on the sampling groove in the central axis direction of the hollow outer needle tube are overlapped when the biopsy gun device is in "0 shooting range" mode before the biopsy gun device is operated, then the biopsy gun device is moved to the designated position together with the hollow outer needle tube and solid inner needle rod, the solid inner needle rod is driven to move and puncture into the target sampling area position of the patient's body by operating the biopsy gun device, the display of the inner ultrasonic developing area in the external image equipment is a marked straight line at this time, thereby assisting the operator to accurately identify the target area position reached by puncture, then the biopsy gun device is operated to drive the hollow outer needle tube to move and puncture into the target sampling area to cut the human tissue of the patient, thereby cutting the human tissue of the patient in the sampling groove to realize biopsy sampling operation, at the same time, the display of the outer ultrasonic developing area in the external image equipment is a marked straight line to assist the operator to confirm the sampling position and sampling length, thereby improving the puncture biopsy precision. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in connection with the drawings and embodiments.

[0020] Fig. 1 It is the hollow outer needle tube and solid inner needle rod's activity unfolding structure schematic diagram of a kind of developing formula puncture needle suite of the utility model;

[0021] Fig. 2 It is the overlapping sleeve structure schematic diagram of a kind of developing formula puncture needle suite of the utility model of hollow outer needle tube and solid inner needle rod;

[0022] Fig. 3 It is the section view of a kind of developing formula puncture needle suite of the utility model;

[0023] Fig. 4 It is the developing state schematic diagram of a kind of developing formula puncture needle suite of the utility model.

[0024] Fig. 1, hollow outer needle tube, 2, solid inner needle rod, 3, sampling groove, 4, inner ultrasonic developing area, 5, outer ultrasonic developing area. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] See Figs. 1 to 4As shown, a kind of visual puncture needle kit, including hollow outer needle tube 1 and solid inner needle rod 2 with the external biopsy gun device connection and the solid inner needle rod 2 is located in the inner cavity of the hollow outer needle tube 1;Sample groove 3 is opened on the solid inner needle rod 2 away from the biopsy gun device one end, at least one section for assisting to identify the puncture to reach target area position and for assisting to confirm the sampling position and sampling length inner ultrasonic development area 4 and outer ultrasonic development area 5 are respectively arranged on the sample groove 3, hollow outer needle tube 1;Wherein, before the biopsy gun device acts, the projection of the outer ultrasonic development area 5 and the inner ultrasonic development area 4 located at the central axis position of the hollow outer needle tube 1 coincide.The end of the hollow outer needle tube 1 away from the biopsy gun device is cutting edge end and the end is located at the same side with the needle tip end of the solid inner needle rod 2, the outer ultrasonic development area 5 is arranged on the outer wall of the hollow outer needle tube 1 close to its cutting edge end, the solid inner needle rod 2 can be axially active along the inner wall of the hollow outer needle tube 1, the end of the solid inner needle rod 2 away from the biopsy gun device is needle tip end and the sample groove 3 is arranged on the solid inner needle rod 2 close to the end of needle tip end.In the process of use, the hollow outer needle tube 1 and the solid inner needle rod 2 are installed on the predetermined position of the external biopsy gun device in advance, before the biopsy gun device acts, i.e. in "0 shooting range" mode, the projection length and position of the outer ultrasonic development area 5 located on the hollow outer needle tube 1 in the central axis direction of the hollow outer needle tube 1 overlap with the projection length and position of the inner ultrasonic development area 4 located on the sample groove 3 in the central axis direction of the hollow outer needle tube 1, then the biopsy gun device is moved together with the hollow outer needle tube 1 and the solid inner needle rod 2 to the designated position, the biopsy gun device is driven to move the solid inner needle rod 2 relative to the hollow outer needle tube 1 by operation, the needle tip end of the solid inner needle rod 2 drives the sample groove 3 and the inner ultrasonic development area 4 to puncture into the target sampling area position in patient's body, at this time, the display of the inner ultrasonic development area 4 in the external imaging equipment is marked straight line, so as to assist the operator to accurately identify the target area position reached by puncture, then the biopsy gun device is driven to move the hollow outer needle tube 1 relative to the solid inner needle rod 2 by operation, the cutting edge end of the hollow outer needle tube 1 is used to puncture into the target sampling area to cut the human tissue of patient, so as to cut the human tissue of patient in the sample groove 3 to realize biopsy sampling operation, at the same time, the display of the outer ultrasonic development area 5 in the external imaging equipment is marked straight line to assist the operator to confirm the sampling position and sampling length, so as to improve the puncture biopsy precision, finally, the biopsy gun device is driven to move the solid inner needle rod 2 and the hollow outer needle tube 1 in turn from patient's body to withdraw, so as to complete the sampling operation, then the human tissue is extracted from the sample groove 3 to implement pathological analysis, in addition, if multiple area sampling is needed, the above operation can be repeated.

[0027] In the present embodiment, the inner ultrasonic imaging area 4 is provided on the top and bottom of the sampling groove 3 for assisting in identifying the position of the solid inner needle rod 2 punctured to the target area by cooperating with external ultrasound or CT. The number of segments of the inner ultrasonic imaging area 4 provided on the top and bottom of the sampling groove 3 is one to three, and the display of the inner ultrasonic imaging area 4 on the external ultrasound or CT image is a number of marked straight lines. In use, when the inner ultrasonic imaging area 4 has several segments, the numbering of the beginning and end points of the marked straight lines on the external ultrasound or CT image is sequentially numbered according to the predetermined standard sequence from the needle tip end of the solid inner needle rod 2 to the other side direction, for example, the numbering is sequentially 2-1, 2-2, 2-3, 2-4, 2-5, 2-6, etc. When the inner ultrasonic imaging area 4 has one segment, the numbering of the beginning and end points is 2-1, 2-2, and so on.

[0028] In the present embodiment, the outer ultrasonic imaging area 5 is provided on the end of the hollow outer needle tube 1 away from the biopsy gun device for assisting in confirming the sampling position and sampling length of the hollow outer needle tube 1 by cooperating with external ultrasound or CT. The number of segments of the outer ultrasonic imaging area 5 provided on the hollow outer needle tube 1 is one to three, and the display of the outer ultrasonic imaging area 5 on the external ultrasound or CT image is a number of marked straight lines. In use, when the outer ultrasonic imaging area 5 has several segments, the numbering of the beginning and end points of the marked straight lines on the external ultrasound or CT image is sequentially numbered according to the predetermined standard sequence from the cutting edge end of the hollow outer needle tube 1 to the other side direction, for example, the numbering is sequentially 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, etc. When the outer ultrasonic imaging area 5 has one segment, the numbering of the beginning and end points is 1-1, 1-2, and so on.

[0029] In the present embodiment, the number of segments of the outer ultrasonic imaging area 5 is the same as the number of segments of the inner ultrasonic imaging area 4 located on the top of the sampling groove 3, or the number of segments of the outer ultrasonic imaging area 5 is the same as the number of segments of the inner ultrasonic imaging area 4 located on the bottom of the sampling groove 3. Among them, the inner ultrasonic imaging area 4 and the outer ultrasonic imaging area 5 are any one of a three-prism point pit, a conical point pit, a spherical point pit, a groove, or a frosted surface. In use,

[0030] Before the biopsy gun device is actuated, i.e. in the uncocked mode at "0 range", the corresponding end points 2-1, 2-2, 2-3, 2-4, 2-5, 2-6, etc. of the inner ultrasonic imaging area 4 respectively overlap with the corresponding end points 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, etc. of the outer ultrasonic imaging area 5 in sequence, for example, the 2-1 point overlaps with the 1-1 point, the 2-2 point overlaps with the 1-2 point, and so on.

[0031] In addition, in the embodiment, the inner ultrasonic imaging area 4 and the outer ultrasonic imaging area 5 can adopt a segmented imaging structure design, and the sampling length under different transmission strokes is identified through the segmented design.

[0032] In summary, the structure has the advantages of assisting the operator in identifying the target area position reached by puncture, accurately confirming the sampling position and sampling length, and improving the puncture biopsy precision.

[0033] For those skilled in the art, other various corresponding changes and deformations can be made according to the above-described technical solutions and concepts, and all of these changes and deformations should belong to the protection scope of the utility model claim.

Claims

1. A visualization puncture needle set comprising a hollow outer needle tube (1) and a solid inner needle rod (2) connected with an external biopsy gun device and the solid inner needle rod (2) is located in the inner cavity of the hollow outer needle tube (1); characterized in that: The solid inner needle rod (2) is provided with a sampling groove (3) at the end away from the biopsy gun device, and the sampling groove (3) and the hollow outer needle tube (1) are respectively provided with at least one inner ultrasonic imaging area (4) and outer ultrasonic imaging area (5) for assisting in identifying the position of the target area reached by puncture and assisting in confirming the sampling position and sampling length; wherein, the outer ultrasonic imaging area (5) and the inner ultrasonic imaging area (4) are located at the projection of the central axis of the hollow outer needle tube (1) before the biopsy gun device is actuated.

2. The visualization puncture needle kit of claim 1, wherein: The inner ultrasonic imaging area (4) is provided on the top and bottom of the sampling groove (3) for cooperating with external ultrasound or CT to assist in identifying the position of the target area reached by the solid inner needle rod (2).

3. The visualizing puncture needle kit according to claim 2, wherein: The number of segments of the inner ultrasonic imaging area (4) provided on the top and bottom of the sampling groove (3) is one to three, and the display of the inner ultrasonic imaging area (4) on the external ultrasound or CT image is a plurality of marked straight lines.

4. The visualization puncture needle kit of claim 1, wherein: The outer ultrasonic imaging area (5) is provided on the end of the hollow outer needle tube (1) away from the biopsy gun device for cooperating with external ultrasound or CT to assist in confirming the sampling position and sampling length of the hollow outer needle tube (1).

5. The visualizing puncture needle kit according to claim 4, wherein: The number of segments of the outer ultrasonic imaging area (5) provided on the hollow outer needle tube (1) is one to three, and the display of the outer ultrasonic imaging area (5) on the external ultrasound or CT image is a plurality of marked straight lines.

6. The visualizing puncture needle kit according to claim 2, wherein: The number of segments of the outer ultrasonic imaging area (5) is the same as the number of segments of the inner ultrasonic imaging area (4) located on the top of the sampling groove (3), or the number of segments of the outer ultrasonic imaging area (5) is the same as the number of segments of the inner ultrasonic imaging area (4) located on the bottom of the sampling groove (3).

7. The visualizing trocar kit according to any one of claims 1 to 6, wherein: The inner ultrasonic imaging area (4) and the outer ultrasonic imaging area (5) are any one of a three-prism point pit, a conical point pit, a spherical point pit, a groove, or a frosted surface.

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