Search

CN-122004951-A - Biopsy puncture tool capable of effectively grabbing bone tissue

CN122004951ACN 122004951 ACN122004951 ACN 122004951ACN-122004951-A

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses a biopsy puncture tool capable of effectively grabbing bone tissues, which comprises a puncture handle, wherein a puncture needle is fixedly connected to one side of the puncture handle, scales are arranged on the outer wall of the puncture needle, annular teeth are arranged on one side of the puncture needle, which is far away from the puncture handle, arc-shaped slopes are arranged in the annular teeth, grabbing pipes are inserted into the puncture needle, push rods are inserted into the grabbing pipes, a positioning assembly is used for limiting and guiding the needle feeding direction of the puncture needle, and the positioning assembly is connected with the puncture needle. Through setting up snatch the piece, can be when snatching the sampling to the bone tissue, make a plurality of snatch the piece closure form sealed space, cut off the junction between the inside bone tissue of sealed space and the outside bone tissue to when puncture instrument takes out from the patient is inside, can take out the bone tissue that snatchs together, improve puncture instrument snatch sampling success rate, make things convenient for medical personnel to use.

Inventors

  • WANG CAIRU
  • LIAO DONGFA
  • LI LIN
  • WU YUCHEN

Assignees

  • 中国人民解放军西部战区总医院

Dates

Publication Date
20260512
Application Date
20260325

Claims (8)

  1. 1. The biopsy puncture tool capable of effectively grabbing bone tissues comprises a puncture handle (1), and is characterized in that one side of the puncture handle (1) is fixedly connected with a puncture needle (2), the outer wall of the puncture needle (2) is provided with scales (3), one side, far away from the puncture handle (1), of the puncture needle (2) is provided with annular teeth (4), the inside of the annular teeth (4) is provided with an arc slope (5), the inside of the puncture needle (2) is inserted with a grabbing tube (6), and the inside of the grabbing tube (6) is inserted with a push rod (7); The positioning assembly is used for limiting and guiding the needle inserting direction of the puncture needle (2), and is connected with the puncture needle (2).
  2. 2. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 1, wherein a plurality of grabbing pieces (8) are fixedly connected to one end of the grabbing tube (6) in an annular sequentially equidistant state, a first weakening groove (9) is formed between the arc-shaped slope (5) and the grabbing pieces (8), a connecting sleeve (10) is fixedly connected to one end, away from the grabbing pieces (8), of the grabbing tube (6), the connecting sleeve (10) is inserted into the puncture handle (1), and the grabbing tube (6) is inserted into the puncture handle (1).
  3. 3. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 2, wherein the outer wall of the grabbing tube (6) is sleeved with a first spring (11), the first spring (11) abuts against the outer wall of the connecting sleeve (10), one end, away from the connecting sleeve (10), of the first spring (11) is fixedly arranged in the puncture handle (1), a limiting groove (12) is formed in the connecting sleeve (10), and a second spring (13) is fixedly arranged on one side, away from the first spring (11), of the connecting sleeve (10).
  4. 4. A biopsy puncture tool capable of effectively grabbing bone tissue according to claim 3, characterized in that an outer wall of one end of the push rod (7) far away from the grabbing piece (8) is fixedly connected with a rotating piece (14), the second spring (13) is fixedly installed in the rotating piece (14), a limiting protrusion (15) is arranged on the outer wall of the push rod (7), and the outer contour of the limiting protrusion (15) is matched with the inner contour of the limiting groove (12).
  5. 5. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 1, wherein a connecting piece (16) is sleeved on the outer wall of the push rod (7), one side of the connecting piece (16) is fixedly connected with an inserting piece (17), the inserting piece (17) is inserted into the puncture handle (1), an arc-shaped groove (18) is formed in the connecting piece (16), a sliding block (19) is fixedly connected to the outer wall of the push rod (7), and the sliding block (19) is inserted into the arc-shaped groove (18).
  6. 6. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 1, wherein the positioning assembly comprises a guide sleeve (20) sleeved on the outer wall of the puncture needle (2), a connecting pipe (21) is fixedly connected to the outer wall of the guide sleeve (20), a compression rod (22) is slidably connected to the inside of the connecting pipe (21), a connecting rod (23) is inserted into the inside of the connecting pipe (21), and one side, far away from the connecting rod (23), of the compression rod (22) is provided with an inclined surface.
  7. 7. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 6, wherein a first locking groove (24) is formed in the outer wall of one end, close to the compression rod (22), of the connecting rod (23), a first locking block (25) is fixedly connected to one end, close to the connecting rod (23), of the compression rod (22), the inner contour of the first locking groove (24) is matched with the outer contour of the first locking block (25), and the number of the first locking grooves (24) is the same as that of the first locking blocks (25).
  8. 8. The biopsy puncture tool capable of effectively grabbing bone tissues according to claim 7, wherein one end of the connecting rod (23) away from the compression rod (22) is fixedly connected with a second locking block (26), the outer wall of the second locking block (26) is sleeved with a connecting ring (27), a second locking groove (28) is formed in the connecting ring (27), a plurality of fan-shaped pieces (29) are fixedly connected to the outer wall of the connecting ring (27) in an annular sequentially equidistant state, a second weakening groove (30) is formed between the connecting ring (27) and the fan-shaped pieces (29), and an adhesive cotton piece (31) is fixedly connected to one side of each fan-shaped piece (29).

Description

Biopsy puncture tool capable of effectively grabbing bone tissue Technical Field The invention belongs to the technical field of medical instruments, and particularly relates to a biopsy puncture tool capable of effectively grabbing bone tissues. Background Biopsy puncture is a medical examination means for obtaining a human tissue sample by a fine needle or a puncture instrument, and is used for extracting a small amount of tissue from a suspected lesion part in a minimally invasive manner and performing pathological examination for determining the nature of the lesion (such as distinguishing benign and malignant tumors, judging inflammation types and the like). The method has the core advantages of being accurate and minimally invasive, improving the accuracy of material drawing by combining an imaging technology (ultrasonic, CT and the like), and being one of the gold standards of clinical diagnosis. After the predetermined puncture needle insertion is completed through the puncture handle, the biopsy puncture tool in the prior art is connected with the inherent bone tissue of the machine body, and in the needle withdrawal process, the target bone tissue is not easy to fall off from the inherent bone tissue, so that the bone tissue is not grabbed, secondary injury is caused to a patient, and the problem is solved. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a biopsy puncture tool capable of effectively grabbing bone tissues. In order to achieve the above purpose, the invention provides a biopsy puncture tool capable of effectively grabbing bone tissues, which comprises a puncture handle, wherein one side of the puncture handle is fixedly connected with a puncture needle, the outer wall of the puncture needle is provided with scales, one side of the puncture needle, which is far away from the puncture handle, is provided with annular teeth, the interior of the annular teeth is provided with an arc slope, a grabbing tube is inserted into the interior of the puncture needle, and a push rod is inserted into the interior of the grabbing tube; The positioning assembly is used for limiting and guiding the needle inserting direction of the puncture needle and is connected with the puncture needle. In the above technical scheme, further, the one end of snatching the pipe is annular equidistant state fixedly connected with a plurality of pieces of snatching in proper order, the arc slope has seted up first weakening groove with a plurality of between snatching the piece, the one end fixedly connected with adapter sleeve of snatching the pipe and keeping away from the piece, the adapter sleeve is pegged graft in puncture handle's inside, snatch the pipe and peg graft in puncture handle's inside. In the above technical scheme, further, the outer wall of snatch the pipe has cup jointed first spring, first spring supports the outer wall at the adapter sleeve, the one end fixed mounting that the adapter sleeve was kept away from to first spring is in the inside of puncture handle, the spacing groove has been seted up to the inside of adapter sleeve, one side fixed mounting that the adapter sleeve kept away from first spring has the second spring. In the above technical scheme, further, the one end outer wall fixedly connected with rotation piece that the piece was snatched in the push rod, second spring fixed mounting is in the inside of rotating the piece, spacing arch has been seted up to the outer wall of push rod, spacing protruding outline and spacing inslot profile looks adaptation. In the above technical scheme, further, the outer wall of push rod has cup jointed the connection piece, one side fixedly connected with inserted sheet of connection piece, the inside at the puncture handle is pegged graft to the inserted sheet, the arc wall has been seted up to the inside of connection piece, the outer wall fixedly connected with slider of push rod, the slider is pegged graft in the inside of arc wall. In the above technical scheme, further, the locating component is including cup jointing the uide bushing at the pjncture needle outer wall, the outer wall fixedly connected with connecting pipe of uide bushing, the inside sliding connection of connecting pipe has the depression bar, the inside grafting of connecting pipe has the connecting rod, one side that the connecting rod was kept away from to the depression bar sets up to the inclined plane. In the above technical scheme, further, the one end outer wall that the connecting rod is close to the depression bar has seted up first locking groove, the one end fixedly connected with first latch segment that the depression bar is close to the connecting rod, first locking inslot profile and first latch segment outline looks adaptation, and first locking groove is the same with first latch segment quantity. In the above technical scheme, further, the one end fixedly connected with second latch segment of depression bar i