Puncture needle head for rotary cutting or marking of mammary tissue

Abstract

The utility model relates to a 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 tool bit 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 clinical sampling or tissue resection of breast tissue, and is used for sampling or resection by being pierced into a human pathological part, and then is used for preventing pathological blurring, disappearance or postoperative local hematoma covering the pathological position caused by tissue changes, so that subsequent treatment cannot be carried out, and generally, the sampling part or resection part is marked by using a breast tissue marking device, so as to facilitate subsequent related diagnosis and treatment, follow-up observation of the pathological part and imaging diagnosis.

[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 has the following defects:

[0004] 1. Due to a long cavity, the operation is difficult;

[0005] 2. This 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] The structure of the existing rotary cutting puncture needle can only be fixed at an angle for hand holding, and when the operation needs to be rotated at an angle, the doctor needs to rotate the angle of the hand, the operation precision of the doctor is affected after the angle is changed, and the posture of the doctor may also be changed, the intraoperative situation is affected, and the air path of the rotary cutting puncture needle is also easy to be pulled, and has a risk of falling off.

[0008] Therefore, the puncture needle head for breast tissue rotary cutting or marking is designed, so as to overcome the above problems. UTILITY MODEL CONTENTS

[0009] 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.

[0010] The utility model discloses a puncture needle head for breast tissue rotary cutting or marking, which comprises a puncture needle head body, the body is installed at the end of a rotary cutting device or a marker device, the puncture needle head body is composed of an outer cutter head and a connecting seat, the connecting seat is connected with the mounting seat of the rotary cutting device or the marker, the outer cutter head is installed in the mounting groove arranged at the front end of the connecting seat, the inner part is hollow for inserting an inner cutter head, a guide opening in the shape of a splayed figure is arranged at the rear of the connecting seat, which facilitates the accurate insertion of the inner cutter head into the outer cutter head, a sharp head is arranged at the end of the outer cutter head, a marking hole with an opening facing upward is arranged at one side of the sharp head, a notch groove is arranged on the needle body behind the sharp head, the notch groove is opposite to the hollow part, a plurality of small through holes are arranged below the notch groove, a gas passage is arranged below the through holes, and the gas passage is connected to a gas extraction device.

[0011] As a preferred, the connecting seat and the mounting seat of the rotary cutting device or the marker device are connected through a clamping piece, a connecting head connected with the rotary cutting device or the marker device is arranged in the mounting seat, the connecting head is hollow, an inner cutter head is installed at the end of the connecting head, the inner cutter head is hollow, the diameter of the inner cutter head is larger than that of the connecting head, one end of the inner cutter head is sleeved on the connecting head, and the other end is provided with a sharp circular cutter head, and a negative pressure passage is connected to the rear of the connecting head.

[0012] As a preferred, the clamping piece is a clamping ring arranged on the connecting seat and a buckle arranged on the mounting seat, degrees are marked on the clamping ring, a marker line is marked on the mounting seat, the diameter of the connecting seat is larger than that of the mounting seat, the mounting seat is sleeved on the front part of the mounting seat, then the buckle is buckled on the clamping ring to fix, and the marker line marks the degrees to adjust the orientation of the notch groove.

[0013] As a preferred, the gas passage is composed of a cutter head passage and a connecting seat gas passage, the cutter head passage is arranged below the small through hole, the connecting seat gas passage is connected with the cutter head passage, the connecting seat gas passage is arranged on the connecting edge connected with the mounting seat, the connecting edge is concave in the middle to form a ring-shaped gas cavity, a mounting seat gas cavity is also arranged on the connecting edge of the mounting seat opposite to the connecting seat gas passage, the two gas cavities are combined to form a closed gas ring, and a gas passage pipe is arranged behind the mounting seat gas cavity to be connected with the gas extraction device.

[0014] As a preferred, a sealing ring matched with the connecting part of the two gas cavities is arranged outside the connecting part.

[0015] The utility model discloses the following beneficial effects:

[0016] The puncture needle head for breast tissue rotation cutting or marking designed in the utility model not only can improve the deficiency of post-rotation cutting puncture marking positioning, but also can realize arbitrary angle rotation of the outer cutter, improve the operation accuracy, reduce the medical cost, the traditional rotation cutting puncture needle is a consumable in whole, the resource waste is serious, and only the outer cutter of the puncture needle and the inner cutter of the puncture needle are consumables in the utility model, so that the medical cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an explosion structure schematic view of the utility model.

[0018] Figure 2 It is a partial enlarged view of the inner cutter after installation in the utility model.

[0019] Figure 3 It is a structure schematic view of the clamping piece in the utility model.

[0020] Figure 4 It is a sectional view. Figure 3

[0021] Figure 5 It is a use state view of the utility model. DETAILED DESCRIPTION

[0022] 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 combination with the drawings and embodiments.

[0023] 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 indicated device or element must have a particular orientation, so it cannot be understood as a limitation on the utility model.

[0024] The utility model will be described in detail below in combination with the drawings: as shown in Figures 1-3 A puncture needle head for breast tissue rotation cutting or marking, it includes puncture needle head body 1, the body is installed at the end of the rotation cutting equipment or marker equipment, the puncture needle head body 1 is composed of outer cutter 2 and connecting seat 3, connecting seat 3 is connected with the mounting seat 4 of rotation cutting equipment or marker, the outer cutter 2 is installed in the mounting groove 5 arranged at the front end of connecting seat 3, and its inside is hollow for inserting the inner cutter 6, as shown in Figure 4 ​As shown, the rear part of the connecting seat 3 is provided with a splayed guide opening 7, which facilitates the accurate insertion of the inner cutter head 6 into the outer cutter head 2. The end of the outer cutter head 2 is provided with a sharp head 8, and a mark hole 9 is formed in the side of the sharp head 8. A notch groove 10 is formed in the rear part of the sharp head 8, and the notch groove 10 is opposite to the inner hollow part. A plurality of small through holes 11 are formed below the notch groove 10, and a gas passage 12 is formed below the through holes 11. The gas passage 12 is connected to a gas extraction device (not shown in the figure).

[0025] The connecting seat 3 and the mounting seat 4 of the rotary cutting device or the marker device are connected by a clamping piece. A connecting head 13 for connecting the rotary cutting device or the marker device is arranged in the mounting seat 4. The connecting head 13 is hollow, and the inner cutter head 6 is arranged at the end of the connecting head 13. The inner cutter head 6 is hollow, and the diameter of the inner cutter head 6 is greater than that of the connecting head 13. One end of the inner cutter head 6 is sleeved on the connecting head 13, and the other end is provided with a sharp circular cutting head 14. The rear part of the connecting head 13 is connected to a negative pressure passage 15.

[0026] The clamping piece is a clamping ring 16 arranged on the connecting seat 3 and a clasp 17 arranged on the mounting seat 4. The clamping ring 16 is marked with a degree 18, and the mounting seat 4 is marked with a mark line 19. The diameter of the connecting seat 3 is greater than that of the mounting seat 4. When the connecting seat 3 is sleeved on the front part of the mounting seat 4, the clasp 17 is buckled on the clamping ring 16 to fix the connecting seat 3 and the mounting seat 4. The mark line 19 marks the degree to adjust the orientation of the notch groove 10.

[0027] The clamping ring and the clasp are matched to connect the connecting seat and the mounting seat. The stability of the whole after connection can be guaranteed. The degree and the mark line are arranged. The assembling is facilitated. The orientation of the notch groove can be adjusted by the mark line. The working efficiency of the whole is greatly improved.

[0028] The gas passage 12 is composed of a cutter head passage 20 and a connecting seat gas passage 21. The cutter head passage 20 is arranged below the small through hole 11. The connecting seat gas passage 21 is connected to the cutter head passage 20. The connecting seat gas passage 21 is formed in the connecting edge 22 connecting the connecting seat 3 and the mounting seat 4. The connecting edge 22 is concave in the middle to form an annular gas cavity 23. The connecting edge of the mounting seat opposite to the connecting seat gas passage is also provided with a mounting seat gas cavity 24. The two gas cavities are matched to form a closed gas passage ring. A gas passage pipe 25 is arranged behind the mounting seat gas cavity 24 to be connected to the gas extraction device. The connecting part of the two gas cavities after being matched is externally sleeved with a sealing ring (not shown in the figure) matched therewith.

[0029] The working characteristics and the working process of the utility model are as follows:

[0030] As shown in the figure, the cutter head 2 is connected to the connecting seat 3, and the connecting seat 3 is connected to the mounting seat 4 of the rotary cutting device or the marker device. Figure 5As shown, the use state diagram after assembly, handle connection in the equipment, handle, make the inner cutter tube stretch out the handle, the inner cutter tube is screwed on the inner cutter tube through the thread connection of the inner cutter head of the puncture needle, the inner cutter tube is withdrawn, then the outer cutter head of the puncture needle is taken out and clamped into the handle, the gas path pipe is connected, the assembly is completed, and the rotary cutting sampling or tissue resection can be carried out.

[0031] After the rotary cutting is completed, if the marker needs to be marked, the outer cutter head of the puncture needle is kept in the patient's body, the handle is taken off from the outer cutter head of the puncture needle, the marker product is taken out, the outer cutter head of the puncture needle is provided with a marker hole for the marker, the marker product is explored from the marker hole of the outer cutter head of the puncture needle to the part to be marked, and the marker is excited to mark.

[0032] The mounting seat of the utility model is provided with a clamping piece that can rotate freely, and the angle of the outer cutter head can be adjusted through the clamping piece to help doctors complete sampling and tissue resection at different angles during the operation. While ensuring rotation at any angle, the connection of the negative pressure gas path is ensured, the connection between the outer cutter head and the rotary cutting equipment is provided with a gas path channel, and the sealing property of the gas path can be increased by using a rubber pad or a sealing ring between the two. After the outer cutter head is rotated to the required angle (the outer cutter head is provided with a number, and the mounting seat is provided with a marker line with an arrow), the handle of the rotary cutting equipment is assembled, the two are matched by tightening the clamping piece, a sealing ring or a rubber pad is sleeved outside the connection between the annular gas path cavity and the mounting seat gas path cavity to satisfy the sealing property of the gas path, and the negative pressure gas path control is realized.

[0033] The puncture needle head for breast tissue rotary cutting or marking designed in the utility model not only can improve the deficiency of marking positioning after the existing rotary cutting puncture, but also can realize rotary cutting of the outer cutter head at any angle, improve the operation accuracy, reduce the medical cost, the traditional rotary cutting puncture needle is a consumable, resources are wasted seriously, and only the outer cutter head of the puncture needle and the inner cutter head of the puncture needle are consumables in the utility model, so that the medical cost is greatly reduced.

[0034] The specific embodiments described in the present application are only illustrative of the principles and effects of the utility model, and are not used 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 completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A biopsy needle for use in breast tissue coring or marking, comprising a biopsy needle body mounted at the end of a coring device or a marker device, characterised in that: The puncture needle body is composed of an outer cutter head and a connecting seat, the connecting seat is connected with the mounting seat of the rotary cutting device or the marker, the outer cutter head is installed in the mounting groove arranged at the front end of the connecting seat, the inner cutter head is inserted into the hollow interior, the rear end is provided with an eight-shaped guide hole in the connecting seat, which facilitates the accurate insertion of the inner cutter head into the outer cutter head, the end of the outer cutter head is provided with a sharp head, a marker hole with an upward opening is arranged on one side of the sharp head, a notch groove is arranged on the needle body behind the sharp head, the notch groove is opposite to the hollow interior, a plurality of small through holes are arranged below the notch groove, a gas path channel is arranged below the through holes, and the gas path channel is connected to the air extraction device.

2. The biopsy needle for use in lumpectomy or marking of breast tissue according to claim 1, characterized in that: The connecting seat and the mounting seat of the rotary cutting device or the marker device are connected through a clamping piece, a connecting head connected with the rotary cutting device or the marker device is arranged in the mounting seat, the connecting head is hollow, the inner cutter head is installed at the end of the connecting head, the inner cutter head is hollow, the diameter of the inner cutter head is larger than that of the connecting head, one end of the inner cutter head is sleeved on the connecting head, and the other end is provided with a sharp circular cutting head, and the rear end of the connecting head is connected with a negative pressure channel.

3. The biopsy needle for use in lumpectomy or marking of breast tissue according to claim 2, characterized in that: The clamping piece is a clamping ring arranged on the connecting seat and a buckle arranged on the mounting seat, the clamping ring is marked with degrees, the mounting seat is marked with a marker line, the diameter of the connecting seat is larger than that of the mounting seat, the mounting seat is sleeved on the front part of the mounting seat, then the buckle is buckled on the clamping ring to fix, and the marker line marks the degrees to adjust the orientation of the notch groove.

4. The biopsy needle for use in lumpectomy or marking of breast tissue according to claim 1 or 2, characterized in that: The gas path channel is composed of a cutter head channel and a connecting seat gas path channel, the cutter head channel is arranged below the small through hole, the connecting seat gas path channel is connected with the cutter head channel, the connecting seat gas path channel is arranged on the connecting edge connected with the mounting seat, the connecting edge is concave in the middle to form an annular gas path cavity, the connecting edge of the mounting seat opposite to the connecting seat gas path channel is also provided with a ring of mounting seat gas path cavities, the two gas path cavities are combined to form a closed gas path ring, and a gas path pipe is arranged behind the mounting seat gas path cavity and connected with the air extraction device.

5. The biopsy needle for use in lumpectomy or marking of breast tissue according to claim 4, characterized in that: The connecting part of the two gas path cavities is externally sleeved with a sealing ring matched with the connecting part.

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