CN215129151U

CN215129151U - Mammary gland puncture and cutting device with blood coagulation function

Info

Publication number: CN215129151U
Application number: CN202120379180.4U
Authority: CN
Inventors: 陆磊
Original assignee: Jiangsu Baining Yingchuang Medical Technology Co ltd
Current assignee: Jiangsu Baining Yingchuang Medical Technology Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-12-14
Anticipated expiration: 2031-02-20

Abstract

The utility model provides a mammary gland puncture and cutting device with blood coagulation function, characterized by: the inner knife pipe (4) is positioned at the inner side of the outer knife pipe (3), and a puncture head is arranged at the head end of the outer knife pipe; the tail part of the inner knife tube is connected with a lead (7) for electrocoagulation power supply, and the input end of the lead is connected with a high-frequency signal of a host machine; a cutter groove is arranged on the pipe wall of the outer cutter pipe close to the puncture head, and a cutting edge structure (1.2) is arranged at the corresponding position of the inner cutter pipe; a negative pressure device (5) is arranged on the outer cutter tube and is connected with a third air exhaust tube (8) and a second air exhaust tube (10) which work alternately; the second exhaust tube is communicated with the first exhaust tube (9), the first exhaust tube is connected with the outer knife tube in a seamless mode, and the first exhaust tube is provided with a row of small holes for sucking tissues into the knife groove (2). The utility model discloses simple structure easily realizes, has cutting and blood coagulation function concurrently.

Description

Mammary gland puncture and cutting device with blood coagulation function

Technical Field

The utility model relates to a medical instrument, especially a mammary gland puncture and cutting device, specifically speaking are mammary gland puncture and cutting device with blood coagulation function.

Background

With the rapid increase in the incidence of breast disease, biopsy systems are often used to help patients determine whether cells in the examined area are cancerous. The rotary cutting device for biopsy is widely used in minimally invasive surgery puncture surgery, firstly, the puncture tool bit is adopted to ensure that the surgical wound is small, no needle sewing is needed, the diagnosis and treatment requirements can be met, the appearance is attractive, and particularly, the rotary cutting device for biopsy has the advantages of small wound surface, good healing, small left-over scar, small injury, quick recovery and the like, and is more popular with most female friends. Vacuum-assisted breast sample biopsy and rotary cutting are one of the most effective modes for breast biopsy operation at present, and repeated cutting of suspicious breast lesions is needed to obtain sufficient histological specimens of breast so as to facilitate early detection and diagnosis of breast cancer and perform minimally invasive resection of benign breast tumors.

In the prior art, a rotary cutter device generally includes a puncture head, an inner cutter tube and an outer cutter tube externally sleeved on the outer side of the inner cutter tube, a sampling groove is radially formed at the front end of the outer cutter tube, and soft tissue is sucked into the sampling groove under the action of vacuum negative pressure after puncture. The tissue sucked into the groove is cut off by the inner knife tube with the cutting edge in a rotating way and is transmitted to the sample collector through the inner knife tube.

However, the cutting heads used at present do not have the function of blood coagulation, and the inner cutter tube cuts tissue during the rotary cutting process, so that a great deal of bleeding is caused. Brings great trouble to the operation of doctors and brings excessive blood loss to patients to increase the pain of the patients. Therefore, a device for solving the bleeding problem of the mammary gland puncture cutting tissue is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a mammary gland puncture and cutting device with blood coagulation function to current mammary gland puncture and cutting device meet the unable problem that realizes timely blood coagulation of heavy bleeding in puncture and cutting process.

The technical scheme of the utility model is that:

the utility model provides a mammary gland puncture and cutting device with blood coagulation function, characterized by: the puncture device comprises an inner cutter tube 4 and an outer cutter tube 3 which are coaxially arranged, wherein the inner cutter tube 4 is positioned on the inner side of the outer cutter tube 3 and is connected with a gear mechanism for driving the outer cutter tube to advance, the gear mechanism is driven by a motor to rotate, and the head end of the outer cutter tube 3 is provided with a puncture head 1; the tail part of the inner knife pipe 4 is connected with a lead 7 for electrocoagulation power supply, and the input end of the lead 7 is connected with a host high-frequency signal; the lead 7 is fixed at the tail part of the inner knife tube 4 through a rubber sleeve 6; the outer knife tube 3 is provided with a knife groove 2 on the tube wall close to the puncture head 1, the inner knife tube 4 is provided with a cutting edge structure 1.2 at the corresponding position, the knife groove 2 is used for adsorbing tumor tissues into the outer knife tube 3, the cutting edge structure 1.2 cuts the tissues sucked into the knife groove 2, and the cut tissues are not easy to move due to the equal internal and external pressure of the knife groove 2; meanwhile, an inter-tube gap formed between the outer surface of the inner cutter tube 4 and the inner surface of the outer cutter tube 3 enables gas to flow therein without obstruction; the outer cutter tube 3 is provided with a negative pressure device 5, and the negative pressure device 5 is connected with a third air suction tube 8 and a second air suction tube 10 which alternately work; the second exhaust tube 10 is communicated with the first exhaust tube 9, the first exhaust tube 9 is seamlessly connected with the outer cutter tube 3, and the first exhaust tube 9 is provided with a row of small holes at the position of the cutter slot 2 and used for sucking tissues and sucking the tissues into the cutter slot 2; before cutting, the second air exhaust pipe 10 enables the first air exhaust pipe 9 communicated with the second air exhaust pipe to be always in an air exhaust state, and after cutting is finished, the second air exhaust pipe 10 stops sucking; the third air suction pipe 8 continues to work, the tissue cut by the inner knife pipe 4 communicated with the third air suction pipe is sucked out through the inner knife pipe 4, and the second air suction pipe and the third air suction pipe work alternately to respectively finish the cutting and the conveying of the tissue; in the cutting process, the high-frequency signal is always in an output state, and after the cutting is finished, the high-frequency signal is closed, so that the high-frequency signal plays a role in coagulating blood for tissue bleeding in the cutting process.

The outer cutter tube 3 is covered with an insulating coating material, and the whole inner sleeve 4 is covered with the insulating coating material except for the cutting edge 1.2 at the far end of the inner cutter tube.

The puncture head 1 is reversely provided with a boss 1.1, the section of the boss 1.1 is circular, and the diameter of the boss is smaller than the inner diameter of the inner sleeve. The clearance between the boss 1.1 and the outer knife pipe 3 is larger than the wall thickness of the inner knife pipe 4. During cutting, the cutting edge 1.2 of the inner knife tube penetrates through the knife groove 2 and reaches the boss 1.1, so that one point of tissue at the final joint can be completely cut off.

The utility model has the advantages that:

the utility model provides a mammary gland puncture and the problem of bleeding of cutting in-process, can in time realize the blood coagulation function, improved the security of operation greatly. Is beneficial to improving the operation quality of doctors and reducing the pain of patients and the psychological burden of doctors.

Change the utility model discloses a pure mechanical rotary cutting's mode in the past. The traditional structure has two motors which respectively act on the advancing and the rotating of the cutter head, and the structure only needs one motor to drive the cutter head to move forwards, so that the whole weight of the whole cutter is reduced, and the cost can be reduced.

The utility model discloses simple structure easily realizes.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged structural view of the cutter head portion of fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-2.

A mammary gland puncture and cutting device with blood coagulation function comprises an inner knife tube 4 and an outer knife tube 3 which are coaxially arranged, wherein the inner knife tube 4 is positioned at the inner side of the outer knife tube 3 and is connected with a gear mechanism driving the outer knife tube to advance, the gear mechanism is driven by a motor to rotate, and the gear mechanism, the motor driving mechanism and the installation position are completely the same as those of the prior art, so that the device is not shown in figure 1. The head end of the outer cutter tube 3 is provided with a puncture head 1; the tail part of the inner knife tube 4 is connected with a lead 7 for electrocoagulation power supply, the input end of the lead 7 is connected with a high-frequency signal of a host, and the cutting edge 1.2 of the inner knife tube simultaneously plays a role in electrocoagulation in the cutting process; the lead 7 is fixed at the tail part of the inner knife tube 4 through a rubber sleeve 6; the outer knife tube 3 is provided with a knife groove 2 on the tube wall close to the puncture head 1, the inner knife tube 4 is provided with a cutting edge structure 1.2 at the corresponding position, the knife groove 2 is used for adsorbing tumor tissues into the outer knife tube 3, the cutting edge structure 1.2 cuts the tissues sucked into the knife groove 2, and the cut tissues are not easy to move due to the equal internal and external pressure of the knife groove 2; meanwhile, an inter-tube gap formed between the outer surface of the inner cutter tube 4 and the inner surface of the outer cutter tube 3 enables gas to flow therein without obstruction; the outer cutter tube 3 is provided with a negative pressure device 5, and the negative pressure device 5 is connected with a third air suction tube 8 and a second air suction tube 10 which alternately work; the second air exhaust pipe 10 is communicated with the first air exhaust pipe 9, the first air exhaust pipe 9 is seamlessly connected with the outer cutter tube 3, and the first air exhaust pipe 9 is provided with a row of small holes at the position of the cutter slot 2 and used for sucking tissues into the cutter slot 2, as shown in fig. 1; before cutting, the second air exhaust pipe 10 enables the first air exhaust pipe 9 communicated with the second air exhaust pipe to be always in an air exhaust state, and after cutting is finished, the second air exhaust pipe 10 stops sucking; the third air suction pipe 8 continues to work, the tissue cut by the inner knife pipe 4 communicated with the third air suction pipe is sucked out through the inner knife pipe 4, and the second air suction pipe and the third air suction pipe work alternately to respectively finish the cutting and the conveying of the tissue; in the cutting process, the high-frequency signal is always in an output state, and after the cutting is finished, the high-frequency signal is closed, so that the high-frequency signal plays a role in coagulating blood for tissue bleeding in the cutting process. The outer cutter tube 3 is covered with an insulating coating material, and the whole inner sleeve 4 is covered with the insulating coating material except for the cutting edge 1.2 at the far end of the inner cutter tube. The puncture head 1 is reversely provided with a boss 1.1, the section of the boss 1.1 is circular, and the diameter of the boss is smaller than the inner diameter of the inner sleeve as shown in figure 2. The clearance between the boss 1.1 and the outer knife pipe 3 is larger than the wall thickness of the inner knife pipe 4. During cutting, the cutting edge 1.2 of the inner knife tube penetrates through the knife groove 2 and reaches the boss 1.1, so that one point of tissue at the final joint can be completely cut off.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a mammary gland puncture and cutting device with blood coagulation function, characterized by: the novel cutter comprises an inner cutter tube (4) and an outer cutter tube (3) which are coaxially arranged, wherein the inner cutter tube (4) is positioned at the inner side of the outer cutter tube (3), and a puncture head (1) is arranged at the head end of the outer cutter tube (3); the tail of the inner knife tube (4) is connected with a lead (7) for electrocoagulation power supply, and the input end of the lead (7) is connected with a host high-frequency signal; the lead (7) is fixed at the tail part of the inner knife tube (4) through a rubber sleeve (6); the cutter groove (2) is arranged on the pipe wall of the outer cutter pipe (3) close to the puncture head (1), the cutting edge structure (1.2) is arranged at the corresponding position of the inner cutter pipe (4), the cutter groove (2) is used for adsorbing tumor tissues into the outer cutter pipe (3), the cutting edge structure (1.2) cuts the tissues sucked into the cutter groove (2), and the cut tissues are not easy to move due to the equal internal and external pressure of the cutter groove (2); meanwhile, an inter-pipe gap formed between the outer surface of the inner cutter pipe (4) and the inner surface of the outer cutter pipe (3) enables gas to flow in the inter-pipe gap without blockage; a negative pressure device (5) is arranged on the outer cutter tube (3), and the negative pressure device (5) is connected with a third air exhaust tube (8) and a second air exhaust tube (10) which alternately work; the second air exhaust pipe (10) is communicated with the first air exhaust pipe (9), the first air exhaust pipe (9) is seamlessly connected with the outer knife pipe (3), and the first air exhaust pipe (9) is provided with a row of small holes at the position of the knife groove (2) and used for sucking tissues and sucking the tissues into the knife groove (2); before cutting, the second air exhaust pipe (10) enables the first air exhaust pipe (9) communicated with the second air exhaust pipe to be always in an air exhaust state, and after cutting is finished, the second air exhaust pipe (10) stops sucking; the third air suction pipe (8) continues to work, the tissue cut by the inner cutter pipe (4) communicated with the third air suction pipe is sucked out through the inner cutter pipe (4), and the second air suction pipe and the third air suction pipe work alternately to respectively finish the cutting and the conveying of the tissue; in the cutting process, the high-frequency signal is always in an output state, and after the cutting is finished, the high-frequency signal is closed, so that the high-frequency signal plays a role in coagulating blood for tissue bleeding in the cutting process.

2. The breast puncturing and cutting device with blood coagulation function as claimed in claim 1, wherein: the outer knife tube (3) is covered with an insulating coating material, and the whole inner sleeve is covered with the insulating coating material except for the cutting edge (1.2) at the far end of the inner knife tube.

3. The breast puncturing and cutting device with blood coagulation function as claimed in claim 1, wherein: puncture head (1) reverse be equipped with a boss (1.1), boss (1.1) cross-section is circular, and its diameter is less than interior sleeve pipe internal diameter, the clearance between boss (1.1) and outer sword pipe (3) is greater than interior sword pipe (4) wall thickness, in the cutting process, interior sword pipe blade (1.2) pass sword groove (2) and reach boss (1.1) department, help like this that one point tissue of last junction can be completely the excision clean.