Plug-in type puncture needle head for rotary cutting or marking of mammary tissue

Abstract

The utility model relates to a plug-in type puncture needle head for rotary cutting or marking of breast tissues, which comprises a puncture needle head body, the puncture needle head body is mounted at the end of rotary cutting equipment or marker equipment, the puncture needle head body consists of an outer cutter head and a connecting seat, and the connecting seat is connected with a mounting seat of the rotary cutting equipment or marker equipment. The outer tool bit is installed in an installation groove formed in the front end of the connecting base, the inner tool bit is inserted into the outer tool bit, a splayed guide opening is formed in the rear portion, located in the connecting base, of the outer tool bit, the inner tool bit can be conveniently and accurately inserted into the outer tool bit, a spine head is arranged at the end of the outer tool bit, and a marking hole with an upward opening is formed in one side of the spine head. A notch groove is formed in the position, located behind the spine head, of the needle body, the notch groove directly faces the hollow position inside the needle body, a plurality of small through holes are formed in the lower portion of the notch groove, and an air channel is formed below the through holes and connected to air exhaust equipment. The utility model has the advantages of simple and reasonable structure, practicability, convenience and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical devices, and relates to a puncture needle head for breast tissue rotary cutting or marking. BACKGROUND

[0002] The breast tissue rotary cutting puncture needle is used for breast tissue clinical sampling or tissue resection, and the rotary cutting puncture needle is pierced into a human body lesion part to sample or resect, and then, in order to prevent the lesion from being blurred, disappearing or being covered by postoperative local hematoma, resulting in that subsequent treatment cannot be carried out, generally, the sampling part or resection part is marked by using a breast tissue marking device, so that subsequent relevant diagnosis and treatment, follow-up observation and imaging diagnosis of the lesion part are facilitated.

[0003] However, the existing breast tissue rotary cutting puncture needle can only allow a soft marking device to deliver a marker to a target position, and the breast tissue rotary cutting puncture needle has the following defects:

[0004] 1. Because the cavity is too long, the operation is difficult;

[0005] 2. The form is easy to cause the marking device to be cut off in the patient's body;

[0006] 3. The tissue hematoma caused after puncture rotary cutting and the structure of the existing rotary cutting puncture needle cause the marker to be unable to be delivered out of the puncture needle, and the "accordion effect" may occur, which reduces the stability of the marker and the tissue, causes inaccurate positioning or loss of the marker.

[0007] Therefore, the puncture needle head for breast tissue rotary cutting or marking is designed, so that the above problems are overcome. Utility model content

[0008] The utility model aims at overcoming the defects of the prior art, and provides a puncture needle head for breast tissue rotary cutting or marking, which is simple and reasonable in structure, convenient to use, and can be matched with all breast tissue marking devices on the market.

[0009] The utility model discloses a kind of plug-in breast tissue rotary cutting or marking puncture needle, it includes puncture needle body, the body is installed at the end of rotary cutting equipment or marker equipment, the puncture needle body is composed of outer cutter head and connecting seat, connecting seat is connected with the mounting seat of rotary cutting equipment or marker, outer cutter head is installed in the mounting groove arranged at the front end of connecting seat, hollow inside for inserting inner cutter head, rear located in the guide opening of connecting seat being opened in eight characters, facilitate the accurate insertion of inner cutter head into outer cutter head, the end of outer cutter head is provided with sharp head, marking hole is opened in the side of sharp head with opening upwards, notch groove is opened in the rear needle of sharp head, notch groove is opposite hollow inside, multiple small through holes are opened below it, gas passage is opened below through hole, and the gas passage is connected to suction equipment.

[0010] As preferred: the connecting seat is inserted and fixed with the mounting seat of rotary cutting equipment or marker equipment, a connecting head connected with rotary cutting equipment or marker equipment is arranged in the mounting seat, the connecting head is hollow inside, and inner cutter head is mounted at the end of the connecting head, the inner cutter head is hollow inside, and the diameter is greater than the diameter of the connecting head, one end is sleeved on the connecting head, and the other end is provided with sharp circular cutting head, and the rear of the connecting head is connected with negative pressure passage.

[0011] As preferred: the connecting seat is connected by plug-in head and needle seat, inner cutter head is mounted at the front of needle seat, plug-in head is mounted at the rear of needle seat, the diameter of plug-in head is smaller than the diameter of needle seat and is embedded into needle seat to be fixed, and clamping groove and clamping strip are opened on the side wall of plug-in head, and the mounting seat is inserted and fixed with rotary cutting equipment or marker equipment through clamping groove and clamping strip, and multiple insertion slots or buckling strips are opened on the mounting seat.

[0012] As preferred: a vertical gas passage pipe is arranged in the needle seat, the gas passage pipe is connected with gas passage, and a suction pipe is extended below the gas passage pipe to be connected with suction equipment to suck pathological tissue.

[0013] As preferred: the insertion slot on the mounting seat is U-shaped insertion slot, and the insertion slots are oppositely arranged.

[0014] The utility model discloses the beneficial effect is as follows:

[0015] The plug-in breast tissue rotary cutting or marking puncture needle designed in the utility model not only can improve the deficiency of marking positioning after rotary cutting puncture, but also can realize the rotation of outer cutter head at any angle, improve the accuracy of operation, reduce the medical cost, the traditional rotary cutting puncture needle is consumable, and the resource is wasted seriously, and only puncture needle outer cutter head and puncture needle inner cutter head are consumable in the utility model, which greatly reduces the medical cost. DRAWINGS

[0016] Figure 1 It is the explosion structure schematic view of the utility model.

[0017] Figure 2 It is the partial enlarged view of the utility model after installing the inner cutter head.

[0018] Figure 3 It is the use state view of the utility model.

[0019] Figure 4 It is the partial enlarged view of the utility model mounting seat. DETAILED DESCRIPTION

[0020] In order to make those skilled in the art more clearly understand the purpose, technical scheme and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and embodiments.

[0021] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms such as 'up', 'down', 'left', 'right', 'inner', 'outer', 'horizontal','vertical' is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element indicated must have a particular orientation, so it cannot be understood as a limitation on the utility model.

[0022] The utility model will be described in detail below in conjunction with the drawings: as Figures 1-3 As shown in a kind of puncture needle for breast tissue trephine or marking of plug-in, it includes puncture needle body 1, the body is installed at the end of trephine device or marker device, the puncture needle body is made of outer cutter head 2 and connecting seat 3, connecting seat 2 is connected with the mounting seat 4 of trephine device or marker, outer cutter head 2 is installed in the mounting groove 5 arranged at the front end of connecting seat 3, its inside hollow is used for inserting inner cutter head 6, rear is located in the guide opening of eight characters (not shown in the drawing) in connecting seat 3, facilitate the accurate insertion of inner cutter head 6 into outer cutter head 2, the end of the outer cutter head 2 is provided with sharp head 7, marking hole 8 with opening upwards is opened in one side of sharp head 7, notch groove 9 is opened in the rear needle of sharp head 7, notch groove 9 is opposite to inside hollow, multiple small through holes 10 are opened in its lower, gas passage 11 is opened in the lower of through hole 10, which is connected to suction equipment.

[0023] Connecting seat 2 is inserted and fixed with the mounting seat 4 of trephine device or marker device, a connecting head 12 connected with trephine device or marker device is arranged in mounting seat 4, the connecting head 12 is hollow inside, and inner cutter head 6 is installed at the end of the connecting head 12, the inner cutter head 6 is hollow inside, and its diameter is greater than that of connecting head 12, one end is sleeved on connecting head 12, and the other end is provided with sharp circular cutting head 13, and negative pressure passage 14 is connected to the rear of connecting head 12.

[0024] The connecting seat 3 is connected to the needle seat 15 by a connector 22. An inner blade 6 is installed at the front of the needle seat 15, and the connector 22 is installed at the rear of the needle seat 15. The diameter of the connector 22 is smaller than the diameter of the needle seat 15, and it is embedded and fixed inside the needle seat 15. A slot 16 and a retaining strip 17 are provided on the side wall of the connector 22. The connector 22 is inserted and fixed to the mounting seat 4 of the rotary cutting device or marking device via the slot 16 and retaining strip 17. The mounting seat 4 has multiple slots 18 or retaining strips 19. A vertically arranged air passage 20 is provided inside the needle seat 15. This air passage 20 is connected to the air passage 11. A suction tube 21 extends from the bottom of the air passage 20, and is connected to a suction device for suctioning pathological tissue. The slots 18 on the mounting seat 4 are U-shaped slots, arranged opposite each other.

[0025] The connector and mounting base of this utility model are connected by a slot or buckle strip, which can ensure the overall stability after connection and thus ensure the normal use of the equipment.

[0026] The working features and process of this utility model are as follows:

[0027] like Figure 3 The diagram shown is a usage state diagram of the assembled version of this utility model. During surgery, the handle is connected to the device. By operating the handle, the inner blade tube extends out of the handle. The inner blade of the puncture needle is screwed onto the inner blade tube through a threaded connection. The inner blade tube is then retracted. The outer blade of the puncture needle is then removed and inserted into the handle. The airway tube is then connected. Once assembled, rotary cutting sampling or tissue removal can be performed.

[0028] After the rotary cutting is completed, if marking is required, keep the external cutting head of the puncture needle inside the patient's body, remove the handle from the external cutting head of the puncture needle, and take out the marking product. The external cutting head of the puncture needle is equipped with a marking hole for marking. Insert the marking product through the marking hole of the external cutting head of the puncture needle to the site to be marked, and activate the marking product for marking. This step is compatible with both hard and soft marking delivery products on the market. At the same time, this step allows doctors to choose different locations for marking, and the marking can be inserted into the tissue to avoid the displacement of the marking product.

[0029] like Figure 4 As shown, the mounting base (rotary cutting needle handle) in this utility model is equipped with a slot that can rotate 60°, which helps doctors to complete sampling and tissue removal at different angles during surgery, thereby greatly improving work efficiency.

[0030] The utility model discloses a puncture needle for breast tissue rotary cutting or marking, which can improve the deficiency of marking and positioning after rotary cutting puncture, realize arbitrary angle rotation of the outer cutter, improve the operation accuracy, reduce the medical cost, and greatly reduce the medical cost as only the outer cutter and the inner cutter of the puncture needle are consumables.

[0031] The specific embodiments described herein are merely illustrative of the principles of the utility model and its effects, and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A plug-in type puncture needle for excising or marking breast tissue, comprising a puncture needle body mounted at the end of an excisional or marking device, characterized in that: The puncture needle body consists of an outer blade and a connecting seat. The connecting seat is connected to the mounting seat of the rotary cutting device or marker. The outer blade is installed in the mounting groove arranged at the front end of the connecting seat. Its interior is hollow for inserting an inner blade. A figure-eight shaped guide opening is provided at the rear of the connecting seat to facilitate accurate insertion of the inner blade into the outer blade. The end of the outer blade is provided with a spike. A marking hole with an upward opening is provided on one side of the spike. A notch is provided on the rear of the needle body, which is directly opposite the hollow interior. Multiple small through holes are provided below the notch. An air passage is provided below the through holes, and the air passage is connected to the suction device.

2. The plug-in puncture needle for cutting or marking breast tissue according to claim 1, characterized in that: The connecting seat is plugged into and fixed to the mounting seat of the rotary cutting device or the marking device. A connector for connecting the rotary cutting device or the marking device is provided inside the mounting seat. The connector is hollow inside and has an inner blade installed at its end. The inner blade is hollow inside and its diameter is larger than that of the connector. One end is sleeved on the connector and the other end has a sharp circular cutting head. A negative pressure channel is connected to the rear of the connector.

3. The plug-in puncture needle for cutting or marking breast tissue according to claim 2, characterized in that: The connector is connected by a plug and a needle seat. An inner cutter head is installed in front of the needle seat, and a plug is installed behind the needle seat. The diameter of the plug is smaller than that of the needle seat and is embedded in the needle seat for fixation. A slot and a locking strip are provided on the side wall of the plug. The plug is inserted and fixed to the mounting base of the rotary cutting device or marking device through the slot and the locking strip. The mounting base is provided with multiple slots or locking strips.

4. The plug-in puncture needle for cutting or marking breast tissue according to claim 3, characterized in that: The needle hub is equipped with a vertically arranged air passage tube, which is connected to the air passage channel. A suction tube extends from the bottom of the air passage tube and is connected to a suction device to aspirate pathological tissue.

5. The insertable puncture needle for cutting or marking breast tissue according to claim 3 or 4, characterized in that: The slots on the mounting base are U-shaped slots, which are arranged opposite each other.

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