CN212382659U

CN212382659U - Bone aspiration biopsy needle structure

Info

Publication number: CN212382659U
Application number: CN202020387387.1U
Authority: CN
Inventors: 郑银定
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-01-22
Anticipated expiration: 2030-03-25

Abstract

The utility model aims at providing a convenient to use is nimble, safe and reliable, the steerable bone puncture biopsy needle structure that has avoided the sample to drop of inserted degree of depth for use when the department such as hospital pathology department, surgery, gynaecology, ENT department, dermatology draws materials. The utility model discloses a puncture body and sampling tube, the bottom of puncture body is equipped with the pjncture needle, the sampling tube includes the fixing base and locates the sleeve pipe of fixing base bottom, be equipped with a plurality of edge on the lateral wall of fixing base the pjncture needle axial is the constant head tank of evenly arranging, be equipped with on the lateral wall of pjncture needle press the subassembly and with press subassembly transmission complex locking piece, the pjncture needle can run through the sampling tube stretch out in the sheathed tube bottom, press the subassembly and can drive the locking piece stretches into or contracts the constant head tank. The utility model discloses be applied to the technical field of medical treatment.

Description

Bone aspiration biopsy needle structure

Technical Field

The utility model relates to the technical field of medical treatment, in particular to bone aspiration biopsy needle structure.

Background

Bone marrow biopsy is a pathological examination of a small cylindrical mass of bone marrow about 0.5-1 cm in size using a specially designed needle. The bone puncture biopsy can not only know the components of bone marrow cells and the distribution condition of original cells, but also observe the cell morphology, is convenient for making pathological diagnosis, and has important significance for diagnosing aplastic anemia and myelodysplasia. In addition, the kit also has diagnostic significance for bone marrow necrosis and bone marrow adiposis.

Because the influence of human skin thickness and the internal tissue degree of depth, current marrow puncture biopsy needle can not control the marrow tissue uptake in a flexible way, and the sample can cause the injury to the patient many times, influences the healing speed of later stage wound to the condition that the marrow tissue drops when easily appearing gathering in the use, the marrow tissue volume that makes the collection obtain is not enough, needs secondary puncture biopsy, further influences operation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a convenient to use is nimble, safe and reliable, the steerable bone puncture biopsy needle structure that the male degree of depth can be avoided the sample to drop for use when hospital pathology department, surgery, gynaecology, ENT department, dermatology department etc. department of academic or vocational study draw materials.

The utility model adopts the technical proposal that: the utility model discloses a puncture body and sampling tube, the bottom of puncture body is equipped with the pjncture needle, the sampling tube includes the fixing base and locates the sleeve pipe of fixing base bottom, be equipped with a plurality of edge on the lateral wall of fixing base the pjncture needle axial is the constant head tank of evenly arranging, be equipped with on the lateral wall of pjncture needle press the subassembly and with press subassembly transmission complex locking piece, the pjncture needle can run through the sampling tube stretch out in the sheathed tube bottom, press the subassembly and can drive the locking piece stretches into or contracts the constant head tank.

According to the scheme, the position of the locking piece clamped with the positioning groove is selected according to the condition of internal and external tissues of a patient, the pressing assembly drives the locking piece to move, so that the locking piece moves along the direction of the positioning groove and is clamped with the positioning groove, namely the sampling tube is assembled with the puncture body, the puncture needle penetrates through the sampling tube, and then the bone puncture operation can be carried out; the depth of the biopsy needle is controlled by the position of the locking piece clamped with the positioning groove, and the biopsy needle is suitable for sampling in various departments of a hospital.

Preferably, the top of the puncture body is provided with a holding part which is in a wave-shaped structure and is attached to the hand of a human body.

According to the scheme, the handle part is arranged, so that the hand of a human body can be attached to the handle part, an operator can better hold the biopsy needle, the anti-slip hand function is achieved, and meanwhile, the operation is convenient.

Preferably, the puncture body is provided with an opening, and the fixing seat is provided with a pushing block which can push the sampling tube into or out of the opening.

According to the scheme, the sampling tube is more conveniently assembled and disassembled with the puncture body by pushing the pushing block on the fixing seat.

One preferred scheme is that the sampling tube is provided with a needle hole which penetrates through the fixed seat and the sleeve, and the diameter length of the needle hole is consistent with the outer diameter length of the puncture needle.

It can be seen by above-mentioned scheme that, the diameter length of pinhole with the external diameter length of pjncture needle is unanimous, makes the pjncture needle inserts during the pinhole, can play spacing effect, be convenient for the sampling tube with the puncture body is assembled or the dismouting operation, and when carrying out the operation of taking a sample, effectively guarantees male precision simultaneously, prevents the pjncture needle is in take place the phenomenon of rocking relatively in the sampling tube.

One preferred scheme is that the fixing seat is provided with a guide block which is arranged opposite to the positioning groove, the head of the guide block is of a spherical surface structure, and the inner wall of the puncture body is provided with a guide groove for the guide block to slide.

According to the scheme, the head part of the guide block is designed into a spherical surface structure, so that the guide block is simpler and more convenient to align to the guide groove.

According to a preferable scheme, the fixing seat is provided with a skirt edge which is circumferentially arranged along the bottom of the fixing seat, and when the upper end face of the skirt edge is attached to the lower end face of the puncture body, the sampling tube reaches an upper limit position.

It can be seen from the above-mentioned scheme that, when the sampling tube with the puncture body is assembled, the setting of shirt rim restricts the upper limit position of sampling tube, guarantees that the locking piece can block in the constant head tank fast when this upper limit position of sampling tube.

Preferably, the bottom end of the sleeve is provided with a blade surface inclined along the inner wall of the sleeve.

According to the scheme, in the process of taking out the sample, the blade surface inclines along the direction of the inner wall of the sleeve, so that the surface tension of the liquid is formed at the opening of the bottom of the sleeve, and the sample is effectively prevented from falling off.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the piercing body;

fig. 3 is a schematic structural view of the sampling tube.

In the figure, 1-puncture body, 2-sampling tube, 3-puncture needle, 4-fixing seat, 5-sleeve, 6-positioning groove, 7-pressing component, 8-locking component, 9-holding part, 10-opening, 11-pushing block, 12-guiding block, 13-skirt edge and 14-blade edge face.

Detailed Description

As shown in fig. 1 to 3, in this embodiment, the present invention comprises a puncture body 1 and a sampling tube 2, the bottom of the puncture body 1 is provided with a puncture needle 3, the sampling tube 2 comprises a fixed seat 4 and a sleeve 5 arranged at the bottom of the fixed seat 4, a plurality of positioning grooves 6 which are uniformly distributed along the axial direction of the puncture needle 3 are arranged on the side wall of the fixed seat 4, a pressing component 7 and a locking component 8 which is in transmission fit with the pressing component 7 are arranged on the side wall of the puncture needle 3, the puncture needle 3 can penetrate through the sampling tube 2 and extend out of the bottom end of the sleeve 5, the locking piece 8 can be driven by the pressing component 7 to extend into or retract out of the positioning groove 6, in the design, the contact part of the locking piece 8 and the positioning groove 6 is in a spherical surface structure, so that the locking piece 8 can be conveniently and quickly inserted into the positioning groove 6; the pressing component 7 is an existing part, the pressing component 7 is manually pressed to enable the pressing component 7 to drive the locking piece 8 to move towards the corresponding positioning groove 6, finally the locking piece 8 is clamped in the positioning groove 6, the pressing component 7 is pulled to enable the pressing component 7 to drive the locking piece 8 to move towards the direction far away from the positioning groove 6, and at the moment, the pressing component 7 can be understood as an inserted link; the pressing component 7 is of an existing part structure, the pressing component 7 is pressed manually, so that the pressing component 7 drives the locking piece 8 to move towards the corresponding positioning groove 6, finally, the locking piece 8 is clamped in the positioning groove 6, the pressing component 7 is pressed, so that the pressing component 7 drives the locking piece 8 to move away from the positioning groove 6, and at the moment, the pressing component 7 can be understood as a pressing structure of an existing ball pen.

Further, as shown in fig. 1 and 2, a holding part 9 having a wave-shaped structure and attached to a hand of a human body is disposed at the top of the puncture body 1.

Further, as shown in fig. 1 and 2, the puncture body 1 has an opening 10, the fixing base 4 is provided with a pushing block 11 capable of pushing the sampling tube 2 into or out of the opening 10, and in this design, the outer surface of the pushing block 11 is provided with anti-skid lines.

Further, as shown in fig. 3, a needle hole passing through the fixing base 4 and the sleeve 5 is formed in the sampling tube 2, the diameter length of the needle hole is consistent with the outer diameter length of the puncture needle 3, a guide block 12 arranged opposite to the positioning groove 6 is formed in the fixing base 4, the head of the guide block 12 is of a spherical surface structure, and a guide groove for allowing the guide block 12 to slide is formed in the inner wall of the puncture body 1.

Further, as shown in fig. 1 and 3, the fixing seat 4 is provided with a skirt 13 circumferentially arranged at the bottom of the fixing seat 4, and when the upper end surface of the skirt 13 is attached to the lower end surface of the puncture body 1, the sampling tube 2 reaches an upper limit position, in this design, the upper limit position of the sampling tube 2 is set to be an insertion depth for sampling of most patients, so that the assembly operation of operators is more convenient, and the operation efficiency is more efficient.

Further, as shown in fig. 1 and 3, the bottom end of the casing 5 is provided with a blade face 14 inclined along the inner wall of the casing 5.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A bone aspiration biopsy needle structure which is characterized in that: it includes puncture body (1) and sampling tube (2), the bottom of puncture body (1) is equipped with pjncture needle (3), sampling tube (2) include fixing base (4) and locate sleeve pipe (5) of fixing base (4) bottom, be equipped with a plurality of edge on the lateral wall of fixing base (4) pjncture needle (3) axial is constant head tank (6) of evenly arranging, be equipped with on the lateral wall of pjncture needle (3) press subassembly (7) and with press subassembly (7) transmission complex locking piece (8), pjncture needle (3) can run through sampling tube (2) and stretch out in the bottom of sleeve pipe (5), press subassembly (7) can drive locking piece (8) are stretched into or are retracted constant head tank (6).

2. A bone biopsy needle arrangement according to claim 1, wherein: the top of the puncture body (1) is provided with a holding part (9) which is of a wave-shaped structure and is attached to the hand of a human body.

3. A bone biopsy needle arrangement according to claim 1, wherein: the puncture body (1) is provided with an opening (10), and the fixed seat (4) is provided with a pushing block (11) which can push the sampling tube (2) into or out of the opening (10).

4. A bone biopsy needle arrangement according to claim 1, wherein: the sampling tube (2) is provided with a needle hole which penetrates through the fixed seat (4) and the sleeve (5), and the diameter length of the needle hole is consistent with the outer diameter length of the puncture needle (3).

5. A bone biopsy needle arrangement according to claim 1, wherein: the puncture needle is characterized in that a guide block (12) which is oppositely arranged with the positioning groove (6) is arranged on the fixing seat (4), the head of the guide block (12) is of a spherical surface structure, and a guide groove for the guide block (12) to slide is formed in the inner wall of the puncture body (1).

6. A bone biopsy needle arrangement according to claim 1, wherein: the puncture needle is characterized in that a skirt edge (13) is arranged on the fixing seat (4) along the circumferential direction of the bottom of the fixing seat (4), and when the upper end face of the skirt edge (13) is attached to the lower end face of the puncture body (1), the sampling tube (2) reaches an upper limit position.

7. A bone biopsy needle arrangement according to claim 1, wherein: the bottom end of the sleeve (5) is provided with a blade surface (14) which is inclined along the inner wall of the sleeve (5).