CN213488977U - Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue - Google Patents

Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue Download PDF

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Publication number
CN213488977U
CN213488977U CN202021706111.1U CN202021706111U CN213488977U CN 213488977 U CN213488977 U CN 213488977U CN 202021706111 U CN202021706111 U CN 202021706111U CN 213488977 U CN213488977 U CN 213488977U
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China
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bone marrow
sampling
biopsy
needle
cylindrical rod
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CN202021706111.1U
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Chinese (zh)
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牛晓娜
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Henan Provincial Peoples Hospital
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Henan Provincial Peoples Hospital
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Abstract

A bone marrow biopsy needle which is convenient for taking out bone marrow biopsy tissue, effectively solving the problem that the tissue is easy to break when the existing bone marrow sampling device samples; the sampling device comprises an upper axial sampling barrel and a lower axial sampling barrel, wherein a baffle ring is coaxially arranged in the sampling barrel, a cylindrical rod is coaxially and slidably connected in the baffle ring, the upper end of the cylindrical rod extends out of the baffle ring and is coaxially provided with a baffle plate, a spring positioned between the baffle plate and the baffle ring is sleeved on the cylindrical rod, a sampling needle is coaxially arranged at the lower end of the cylindrical rod, a groove is formed at the lower end of the sampling needle, L-shaped grooves which are communicated from inside to outside are respectively formed in the left side and the right side of the upper end of the sampling barrel, a button which can extend out of the sampling barrel is connected to a rotary drum at; the novel multifunctional electric heating cooker is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue
Technical Field
The utility model relates to the technical field of bone marrow examination instruments, in particular to a bone marrow biopsy needle convenient for taking out biopsy bone marrow tissues.
Background
The bone marrow biopsy is the routine operation of disease diagnosis in the hematology department, can overcome the dry suction and dilution problems of the bone marrow puncture, and the diagnosis of some common blood diseases depends on the pathological examination of the bone marrow biopsy, such as aplastic anemia, myelofibrosis, bone marrow necrosis and the like; differential diagnosis and efficacy assessment of some diseases also rely on bone marrow biopsy of multiple sites. The pathological examination of bone marrow requires taking qualified biopsy specimen of bone marrow (cylindrical complete bone marrow tissue with length of more than 1.5cm and diameter of 2 mm), so that the morphology and components of bone marrow cells can be known in detail, the cell distribution and the fibrous tissue proliferation can be observed, and the accurate diagnosis of diseases can be carried out by immunohistochemistry and molecular examination. At present, the most advanced biopsy needles in clinical practice, such as the Italian 'Gallini' biopsy needle, have the condition that tissues can not be completely taken out, twisted off and broken after biopsy, although the Italian biopsy needle has more sampling shovels than the domestic biopsy needle, such as the 'prismatic plate' biopsy needle, so that bone marrow tissues can be conveniently broken off, and the condition that the biopsy tissues are broken or can not be smoothly pushed out by the sampling needle still exists after the biopsy needle exits from bone marrow, cortical bone, subcutaneous tissues and skin of a patient.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a bone marrow biopsy needle which can conveniently take out bone marrow tissue for biopsy, and effectively solve the problem of easy tissue breakage during sampling of the existing bone marrow sampling device.
The technical scheme of its solution is, the utility model discloses an upper and lower axial sampler barrel, coaxial being equipped with in the sampler barrel keeps off the ring, it has the cylinder pole to keep off coaxial sliding connection in the ring, cylinder pole upper end is stretched out and is kept off ring and coaxial baffle that is equipped with, the cover is equipped with the spring that is located the baffle and keeps off between the ring on the cylinder pole, the coaxial sampling needle that is equipped with of cylinder pole lower extreme, the sampling needle lower extreme is seted up flutedly, the L shape groove that link up inside and outside is seted up respectively to the left and right sides of sampler barrel upper end, baffle upper end rotary drum is connected with the button that can stretch out the sampler barrel, the left and right sides of button.
Compared with the prior art, the beneficial effects of the utility model are that: sampling needle and recess that are equipped with, can get the marrow sample to the recess in, make that medical staff can be smooth release the marrow sample, button and cylinder pole that are equipped with, accessible sampling needle drives the recess and slides from top to bottom, can not produce pressure to it when taking out the marrow sample, thereby cause the marrow tissue breakage when avoiding taking a sample, the inverted L shape groove that is equipped with insert the post, medical staff carelessly presses the button when can effectively preventing to break the marrow tissue, this simple structure, the design is novel, high durability and convenient use, therefore, the clothes hanger is strong in practicability.
Drawings
Fig. 1 is an isometric view of the present invention.
Fig. 2 is a perspective view of the utility model.
Fig. 3 is an enlarged view of a in fig. 2 according to the present invention.
Fig. 4 is a full-section top axonometric view of the utility model.
Fig. 5 is a partial cutaway left side perspective view diagram of the utility model.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
By figure 1 to 5 and give, axial sampling tube 1 about including, coaxial being equipped with in the sampling tube 1 keeps off ring 2, keep off coaxial sliding connection has cylinder pole 3 in the ring 2, cylinder pole 3 upper end is stretched out and is kept off ring 2 and coaxial being equipped with baffle 4, the cover is equipped with on the cylinder pole 3 and is located baffle 4 and keep off the spring 5 between the ring 2, the coaxial sampling needle 6 that is equipped with of cylinder pole 3 lower extreme, recess 7 has been seted up to sampling needle 6 lower extreme, the left and right sides of sampling tube 1 upper end is seted up respectively and is had a inside and outside inverted L shape groove 8 that link up, baffle 4 upper end rotary drum is connected with the button 9 that can stretch out sampling tube 1, the left and right sides of button 9 lower extreme is equipped with the inserted column 10 that inserts the inverted.
In order to facilitate the understanding of the insertion depth of the device, the outer edge surface of the sampling tube 1 is provided with scale marks 11.
In order to make the sampling rod only slide up and down, the left end and the right end in the sampling tube 1 are respectively provided with a sliding chute 12 in the up-down direction, and the left end and the right end of the sampling needle 6 are respectively provided with a sliding block 13 which can slide in the sliding chute 12 on the corresponding side.
For the convenience of the device, the upper end of the sampling tube 1 is coaxially provided with a cylinder 14 with a large upper part and a small lower part.
In order to meet the test requirement, the inner diameter of the sampling needle 6 is 2mm, and the length of the groove 7 is more than 1.5 cm.
In order to prevent the hands of the medical staff from slipping, a plurality of anti-slip strips 15 are uniformly distributed along the circumferential direction of the outer surface of the cylinder 14.
When the utility model is used, the two cylindrical rods 3 are in the initial state at the upper end of the inverted L-shaped groove 8, and the groove 7 is positioned in the sampling cylinder 1;
after conventional positioning, disinfection and anesthesia, vertically rotating a biopsy cannula and a stylet to enter cortex lycii together, taking out the stylet, covering a handle cap on the cannula and pushing the cannula downwards for 2cm, screwing a bone marrow tissue 1-2 cm into the lower end of the cannula at the moment, then opening the handle cap and inserting the device into the cannula, determining the insertion depth of a sampling needle 6 in a sampling cylinder 1 according to a scale mark 11, then enabling the device to rotate for a circle clockwise along with the cannula, enabling the sampling cylinder 1 to break a bone marrow sample, and enabling the bone marrow sample to be located in a groove 7 below the sampling needle 6 at the moment;
the sleeve is pulled out of the body of a patient, after the wound of the patient is treated, the device is pulled out of the sleeve, the button 9 is rotated anticlockwise, the button 9 drives the two inserting columns 10 to rotate anticlockwise until the cylindrical rod 3 can slide up and down in the inverted L-shaped groove 8, the medical staff holds the anti-slip strip 15 on the cylinder 14, then the button 9 is pressed downwards, the button 9 extrudes the spring 5 downwards through the baffle 4, the baffle 4 drives the sampling needle 6 to move downwards through the cylindrical rod 3, the slide block 13 and the chute 12 can prevent the sampling needle 6 from rotating when sliding, the sampling needle 6 drives the bone marrow sample in the groove 7 to extend out of the sampling cylinder 1 downwards, and the bone marrow sample drops into the stationary liquid, then the button 9 is loosened, the baffle 4 slides upwards under the action of the spring 5, the baffle 4 drives the sampling needle 6 to slide upwards into the sampling tube 1 through the cylindrical rod 3, and the sampling of the bone marrow tissue is completed.
The utility model is a disposable product which needs to be thrown to the appointed place of the hospital after being used.
Compared with the prior art, the beneficial effects of the utility model are that: sampling needle and recess that are equipped with, can get the marrow sample to the recess in, make that medical staff can be smooth release the marrow sample, button and cylinder pole that are equipped with, accessible sampling needle drives the recess and slides from top to bottom, can not produce pressure to it when taking out the marrow sample, thereby cause the marrow tissue breakage when avoiding taking a sample, the inverted L shape groove that is equipped with insert the post, medical staff carelessly presses the button when can effectively preventing to break the marrow tissue, this simple structure, the design is novel, high durability and convenient use, therefore, the clothes hanger is strong in practicability.

Claims (6)

1. A bone marrow biopsy needle convenient for taking out bone marrow biopsy tissue, which comprises an upper and a lower axial sampling barrels (1), the sampling device is characterized in that a baffle ring (2) is coaxially arranged in a sampling cylinder (1), a cylindrical rod (3) is coaxially and slidably connected in the baffle ring (2), the upper end of the cylindrical rod (3) extends out of the baffle ring (2) and is coaxially provided with a baffle plate (4), a spring (5) positioned between the baffle plate (4) and the baffle ring (2) is sleeved on the cylindrical rod (3), a sampling needle (6) is coaxially arranged at the lower end of the cylindrical rod (3), a groove (7) is formed in the lower end of the sampling needle (6), inverted L-shaped grooves (8) which are communicated with the inside and the outside are respectively formed in the left side and the right side of the upper end of the sampling cylinder (1), a rotary cylinder at the upper end of the baffle plate (4) is connected with a button (9) which can extend out of the sampling cylinder (1), and inserting columns (10).
2. The biopsy needle for taking out bone marrow tissue conveniently according to claim 1, wherein the outer edge surface of the sampling tube (1) is provided with scale marks (11).
3. The bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue as claimed in claim 1, wherein the left end and the right end of the sampling tube (1) are respectively provided with a chute (12) in the vertical direction, and the left end and the right end of the sampling needle (6) are respectively provided with a slide block (13) capable of sliding in the chute (12) on the corresponding side.
4. A bone marrow biopsy needle for facilitating the removal of biopsy bone marrow tissue according to claim 1, wherein the sampling tube (1) is coaxially provided with a cylinder (14) having a large upper end and a small lower end at the upper end.
5. A bone marrow biopsy needle for facilitating the removal of biopsy bone marrow tissue according to claim 1, wherein the inner diameter of the sampling needle (6) is 2mm and the length of the notch (7) is more than 1.5 cm.
6. A biopsy needle for taking out bone marrow tissue conveniently according to claim 4, characterized in that the outer surface of the cylinder (14) is provided with a plurality of anti-slip strips (15) uniformly distributed along the circumferential direction.
CN202021706111.1U 2020-08-14 2020-08-14 Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue Active CN213488977U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021706111.1U CN213488977U (en) 2020-08-14 2020-08-14 Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021706111.1U CN213488977U (en) 2020-08-14 2020-08-14 Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue

Publications (1)

Publication Number Publication Date
CN213488977U true CN213488977U (en) 2021-06-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021706111.1U Active CN213488977U (en) 2020-08-14 2020-08-14 Bone marrow biopsy needle convenient for taking out biopsy bone marrow tissue

Country Status (1)

Country Link
CN (1) CN213488977U (en)

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