CN215227917U

CN215227917U - Novel centrum bone tissue get biopsy instrument

Info

Publication number: CN215227917U
Application number: CN202120140037.XU
Authority: CN
Inventors: 周英杰; 胡冬; 胡旭军; 张鹏云
Original assignee: NINGBO HICREN BIOTECHNOLOGY CO LTD
Current assignee: NINGBO HICREN BIOTECHNOLOGY CO LTD
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-12-21
Anticipated expiration: 2031-01-19

Abstract

The utility model relates to a novel centrum bone tissue get biopsy instrument, include cutting assembly, adjusting part and the outer tube subassembly of establishing from inside to outside in proper order the cover, cutting assembly includes cutting member and handle, cutting member near-end with handle fixed connection, adjusting part includes regulating tube and adjustment handle, the regulating tube near-end with regulating tube handle fixed connection, through the operation the regulating tube handle the regulating tube can along cutting member axial slip realizes the recovery and the release of cutting member distal part, the outer tube subassembly includes outer tube and outer tube handle, the outer tube near-end with outer tube handle fixed connection, through the operation the outer tube handle the outer tube can with the regulating tube with cutting member axial motion.

Description

Novel centrum bone tissue get biopsy instrument

Technical Field

The utility model belongs to the field of medical equipment, a centrum bone tissue gets biopsy instrument is related to.

Background

The main indications of percutaneous vertebroplasty are osteoporosis compression fracture and vertebral tumor, wherein the vertebral tumor is the earliest target of percutaneous vertebroplasty, and a needle biopsy is needed during the operation process in order to determine the pathology of the tumor. At present, the most common biopsy taking instrument in the market consists of a needle core part and a needle tube part, and is mainly inserted into a vertebral body through the needle tube part, and bone tissues in the vertebral body enter the needle tube through rotation or a suction device so as to realize the extraction of lesion tissues. However, in clinical feedback, the existing instruments are difficult to retain bone tissues in the needle tube during withdrawal during operation, and a sufficient amount of bone tissues cannot be obtained for pathological examination with a high probability.

In order to solve the above problems, there is a need for a biopsy instrument that ensures that more bone tissue can be harvested

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of the prior art, the utility model aims at providing a centrum bone tissue gets biopsy instrument to solve the problem that proposes in the above-mentioned background, the utility model discloses convenient to use, the operation of being convenient for can ensure that more the reservation of bone tissue is in the outer tube of biopsy instrument, and the reliability is high.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a novel centrum bone tissue biopsy instrument, includes cutting assembly, adjusting part and the outer tube subassembly of establishing from inside to outside in proper order, cutting assembly includes cutting member and handle, the cutting member near-end with handle fixed connection, adjusting part includes regulating tube and adjustment handle, the regulating tube near-end with regulating tube handle fixed connection, through the operation the regulating tube handle the regulating tube along cutting member axial slip realizes the recovery and the release of cutting member distal part, the outer tube subassembly includes outer tube and outer tube handle, the outer tube near-end with outer tube handle fixed connection, through the operation the outer tube handle the outer tube for the regulating tube with cutting member axial motion.

Further, the cutting member may be made of one or more wires or tubes.

Further, the cutting member is made of a shape memory alloy or a resilient metal alloy.

Further, the distal cutting element portion may be an L-shaped structure, a T-shaped structure, or a plurality of L-shaped structures.

Further, the outer tube distal end portion is serrated.

Compared with the prior art, the utility model discloses an advantage and progress as follows:

the utility model discloses a biopsy instrument is got to centrum bone tissue easy operation, convenient to use inserts the apparatus puncture passageway back in the use, and operation regulating tube handle will cut a release, then the operation outer tube handle makes the outer tube move to with cutting a parallel and level, rotates the apparatus again, makes bone tissue and centrum separation in the outer tube, obtains sufficient bone tissue and carries out pathological examination.

Drawings

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

fig. 2 is a schematic view of the distal end cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the novel cutting element configuration of the present invention;

fig. 4 is a schematic view of the distal end structure of the outer tube of the present invention;

FIG. 5 is a schematic structural view of the present invention entering the initial state of the vertebral body;

FIG. 6 is a schematic structural view of the adjusting tube of the present invention after being retracted;

fig. 7 is a schematic structural view of the outer tube of the present invention after completely entering the vertebral body.

Wherein the reference numbers in the figures are as follows: 1 is a cutting assembly, 11 is a cutting member, 111 is a distal portion of the cutting member, 12 is a handle, 2 is an adjustment assembly, 21 is an adjustment tube, 22 is an adjustment handle, 3 is an outer tube assembly, 31 is an outer tube, 32 is an outer tube handle, 311 is a distal portion of the outer tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in detail below with reference to the accompanying drawings by way of examples.

The near end of the utility model is the end close to the operator, and the far end is the end far away from the operator.

Examples

As shown in figures 1-2, a novel centrum bone tissue biopsy instrument comprises a cutting component 1, an adjusting component 2 and an outer tube component 3 which are sleeved from inside to outside in sequence, the cutting assembly 1 comprises a cutting piece 11 and a handle 12, the proximal end of the cutting piece 11 is fixedly connected with the handle 12, the adjusting component 2 comprises an adjusting tube 21 and an adjusting handle 22, the near end of the adjusting tube 21 is fixedly connected with the adjusting tube handle 22, retraction and release of the cutting member distal portion 111 is achieved by operation of the adjustment tube handle 22 which allows the adjustment tube 21 to slide axially along the cutting member 11, the outer tube assembly 3 comprises an outer tube 31 and an outer tube handle 32, the proximal end of the outer tube 31 is fixedly connected with the outer tube handle 32, the outer tube 31 is axially movable relative to the adjustment tube 21 and the cutting member 11 by operation of the outer tube handle 32.

As shown in fig. 3, the cutting member 11 may be a wire or a plurality of wires or a tube, and the cutting member 11 is made of a shape memory alloy or an elastic metal alloy. The cutting element distal portion 111 may be an L-shaped structure, a T-shaped structure, or a plurality of L-shaped structures.

As shown in fig. 4, the outer tube distal portion 311 is serrated.

The specific surgical procedure is as follows: firstly, accomplish under the assistance of C type arm and establish puncture channel, then will the utility model discloses a novel centrum bone tissue gets biopsy instrument and puts into the pjncture needle intraductally (as shown in fig. 5), operate adjusting tube handle 22 makes adjusting tube 21 withdraw, and cutting member distal part 111 releases completely (as shown in fig. 6), then operates outer tube handle 32 for the terminal surface of outer tube 31 slides to and cutting member distal part 111 (as shown in fig. 7) parallel and level, then rotates whole equipment, makes the inside bone tissue of outer tube separate with the centrum, then withdraws from the centrum bone tissue and gets biopsy instrument, accomplishes and gets the biopsy operation.

Claims

1. The utility model provides a novel centrum bone tissue biopsy instrument, its characterized in that includes cutting assembly, adjusting part and the outer tube subassembly of establishing from inside to outside cover in proper order, cutting assembly includes cutting member and handle, cutting member near-end with handle fixed connection, adjusting part includes regulating tube and adjustment handle, the regulating tube near-end with regulating tube handle fixed connection, through the operation the regulating tube handle the regulating tube along cutting member axial slip realizes the recovery and the release of cutting member distal part, the outer tube subassembly includes outer tube and outer tube handle, the outer tube near-end with outer tube handle fixed connection, through the operation the outer tube handle the outer tube for the regulating tube with cutting member axial motion.

2. The biopsy instrument of claim 1, wherein the cutting member is a wire or a plurality of wires or tubing.

3. The biopsy instrument of claim 1, wherein the cutting member is made of a shape memory alloy or a resilient metal alloy.

4. The biopsy instrument of claim 1, wherein the distal cutting member portion is an L-shaped structure, a T-shaped structure or a plurality of L-shaped structures.

5. The biopsy instrument for harvesting bone tissue from a vertebral body according to claim 1, wherein the distal portion of the outer tube is serrated.