CN-122005027-A - Mediastinum puncture device for thoracic surgery

Abstract

The invention belongs to the technical field of medical appliances, and particularly relates to a mediastinum puncture device for thoracic surgery, which comprises a shell, a puncture needle, a sampling needle, a needle head assembly, a warning assembly and a warning assembly, wherein a through groove is formed in the tube wall of the puncture needle, the sampling needle is slidably inserted into the shell and positioned in the puncture needle, four sampling grooves are circumferentially formed in the end part of the sampling needle, different sampling grooves can be aligned with the through groove in the puncture needle through rotating the sampling needle, continuous sampling can be realized through controlling the puncture depth, the needle head assembly is slidably inserted into the end part of the puncture needle, and the warning assembly comprises a sensing part, a triggering part, a warning part and an adjusting part, wherein the sensing part, the triggering part and the warning part are arranged in the shell. The invention can realize yielding and early warning, single puncture multipoint sampling and flexible adaptation to different tissue environments, and obviously improves the safety and diagnosis accuracy of mediastinum puncture.

Inventors

• FANG XING
• Ma Peini
• TANG FANGNING

Assignees

• 中国人民解放军空军军医大学

Dates

Publication Date

20260512

Application Date

20260408

Claims (10)

1. 1. A mediastinum piercing depth for thoracic surgery, includes shell and connects in the pjncture needle of shell tip, has seted up logical groove on the pipe wall of pjncture needle, its characterized in that still includes: the sampling needle is inserted in the shell in a sliding way and is positioned in the puncture needle, four sampling grooves are formed in the circumferential direction of the end part of the sampling needle, different sampling grooves can be aligned with the through grooves on the puncture needle by rotating the sampling needle, and continuous sampling is realized by controlling the puncture depth; the needle head assembly is inserted into the end part of the puncture needle in a sliding way; The warning component comprises a sensing part, a triggering part, an alarming part and an adjusting part, wherein the sensing part, the triggering part and the alarming part are arranged in the shell; in the puncturing process, when the needle head assembly is subjected to axial resistance, the needle head assembly retracts into the puncture needle and drives the sampling needle to synchronously move, the sampling needle pushes the sensing part to contact the triggering part so as to trigger the alarm part to send out a warning, and the adjusting part is used for adjusting the moving resistance of the sensing part so as to change the resistance threshold for triggering the warning.
2. 2. A mediastinum puncturing device for thoracic surgery as set forth in claim 1 wherein the connecting end of the puncture needle is provided with a positioning hole and the connecting end of the housing connected to the puncture needle is provided with a positioning rod which cooperates with the positioning hole.
3. 3. The mediastinum puncturing device for thoracic surgery according to claim 1, wherein the sampling needle is of a hollow tubular structure, a negative pressure hole is formed in the bottom of each sampling groove on the tube wall of the sampling needle, the negative pressure hole is communicated with the inner cavity of the sampling needle, a first magnetic piece is fixedly inlaid at one end of the sampling needle, and a convex strip is fixedly connected to the outer wall of the sampling needle.
4. 4. A mediastinum puncturing device for use in thoracic surgery as in claim 1 wherein the housing has graduation marks at one end and the needle is sleeved with a pointer.
5. 5. A mediastinum puncturing device for use in thoracic surgery as claimed in claim 1 wherein the end of the needle is provided with a receiving slot.
6. 6. The mediastinum puncturing device for thoracic surgery according to claim 5, wherein the needle head assembly comprises a puncturing head which is slidably inserted into the accommodating groove at the end of the puncturing needle, one end of the puncturing head is fixedly connected with a hexagonal rod, the hexagonal rod penetrates into the cavity of the puncturing needle and is fixedly connected with a disc, one side of the disc is fixedly connected with a hollow column, the disc is fixedly embedded with a second magnetic piece, and the hollow column is provided with a connecting hole.
7. 7. The mediastinum puncturing device for thoracic surgery according to claim 1, wherein the sensing part comprises a sliding rod fixedly connected to the inner wall of the housing, a movable seat is slidably connected to the sliding rod, a swivel seat is rotatably connected to an inner ring of the movable seat, a collision block is fixedly connected to one side of the movable seat, a movable groove is formed in the movable seat in an annular shape, a locking block is slidably inserted into one end of the movable groove, a spring is fixedly connected between the locking block and the movable groove, hemispherical grooves are formed in the outer wall of the swivel seat in an annular shape, the end portions of the locking blocks are hemispherical, and a limit groove is formed in the inner ring of the swivel seat.
8. 8. The mediastinum puncturing device for thoracic surgery according to claim 1, wherein the triggering portion comprises a bracket fixedly connected to the inner wall of the housing, a lifting rod is slidably inserted on the bracket, a fixing ring is fixedly sleeved on the lifting rod, a first pressure spring is fixedly connected between the fixing ring and the bracket, one end of the lifting rod is fixedly connected with a U-shaped frame, and a rotating roller is rotatably connected on the U-shaped frame.
9. 9. The mediastinum puncturing device of claim 8 wherein the alarm portion comprises a contact switch fixedly mounted on the inner wall of the housing at the end of one of the lifting rods, an alarm is further mounted on the outer wall of the housing, and the alarm is electrically connected to the contact switch via a wire.
10. 10. The mediastinum puncture device for thoracic surgery according to claim 7, wherein the adjusting part comprises guide grooves which are annularly distributed and are arranged on the housing, a movable plate is slidably connected in the guide grooves, a second pressure spring is fixedly connected between the movable plate and the movable seat, a lantern ring is sleeved outside the housing in a sliding manner, the lantern ring is fixedly connected with the movable plate, one end of the lantern ring is rotatably connected with a swivel, a thread groove is formed in the outer wall of the housing, and a nut sleeve is screwed.

Description

Mediastinum puncture device for thoracic surgery Technical Field The invention belongs to the technical field of medical appliances, and particularly relates to a mediastinum puncture device for thoracic surgery. Background In clinical diagnosis and treatment of thoracic surgery, qualitative diagnosis of intramediastinal lesions (such as lymph nodes, tumors, etc.) is of paramount importance, and needle biopsy is a main means for obtaining pathological tissues. The current common puncture means include a CT or ultrasound guided puncture needle or gun. The sampling device for the medical examination of the tumor cells comprises a sampling needle, an air pump, a connecting pipe and a sealing plug, wherein the sampling needle consists of a hollow needle, an air pipe, a sleeve and a movable sleeve, a sampling port is formed in one end of the hollow needle, the sleeve is arranged at the other end of the hollow needle, the air pipe is arranged on the outer surface of the hollow needle, which is close to the sleeve, and the sleeve is connected with the hollow needle in a sliding manner. This tumour cell medical science inspection sampling device, stab the sample needle into the human body to make the sample connection on the sample needle pierce in the tumour tissue, take out the inside air of sample connection through the air pump, so tumour tissue can be through in the sample connection inhales the sample connection, cut off the tumour tissue of sample connection department through the sample connection, so extract the sample connection, and take out the sample connection, and can obtain tumour tissue, so the sample is convenient. A puncture sampling device such as the type described above, which is capable of puncturing and sampling a lesion area, has some drawbacks during actual use: 1. When puncturing under the guidance of an image, an operator mainly depends on hand feeling and image judgment. When the puncture needle encounters larger resistance, dense tumor tissues and calcified lymph nodes can be touched, and excessive force is easily generated to cause excessive puncture. The existing puncture device lacks an objective and adjustable resistance feedback mechanism, completely depends on experience and hand feeling of an operator, and has certain potential safety hazard. 2. The device cannot sample multiple positions of a focus after one needle insertion. The clinical disadvantage is remarkable, if the suspicious region needs to be sampled at multiple points to improve the diagnosis accuracy, the puncture needle needs to be repeatedly advanced and retreated, so that the operation time and the operation difficulty are increased, and the tissue injury and the complications are more easily caused. 3. The puncture mode is single, and the adaptability is not enough. The needle tip of the conventional puncture needle is of a fixed sharp structure and is suitable for directly puncturing a target. However, sharp needle tips present a risk of accidental injury when a bypass through an important nerve, blood vessel is required. Disclosure of Invention The invention aims to provide a mediastinum puncture device for thoracic surgery, which can realize yielding and early warning, single puncture multipoint sampling and flexible adaptation to different tissue environments, and remarkably improves the security and the diagnosis accuracy of mediastinum puncture. The technical scheme adopted by the invention is as follows: A mediastinum piercing depth for thoracic surgery, includes shell and connect in the pjncture needle of shell tip, open the logical groove on the pipe wall of pjncture needle, still include: the sampling needle is inserted in the shell in a sliding manner and is positioned in the puncture needle, four sampling grooves are formed in the circumferential direction of the end part of the sampling needle, different sampling grooves can be aligned with the through grooves on the puncture needle by rotating the sampling needle, and continuous sampling is realized by controlling the puncture depth; The needle head assembly is inserted into the end part of the puncture needle in a sliding way; The warning component comprises a sensing part, a triggering part, an alarming part and an adjusting part, wherein the sensing part, the triggering part and the alarming part are arranged in the shell; in the puncturing process, when the needle head assembly is subjected to axial resistance, the needle head assembly retracts into the puncture needle and drives the sampling needle to synchronously move, the sampling needle pushes the sensing part to contact the triggering part so as to trigger the alarm part to send out a warning, and the adjusting part is used for adjusting the moving resistance of the sensing part so as to change the resistance threshold for triggering the warning. In a preferred scheme, the connecting end of the puncture needle is provided with a positioning hole, the connecting end connected with the punc