CN212015653U

CN212015653U - Disposable biopsy needle capable of realizing ultrasonic reflection and detachable outer needle tube

Info

Publication number: CN212015653U
Application number: CN202020205826.2U
Authority: CN
Inventors: 周瑜
Original assignee: Shenzhen Mibo Technology Co ltd
Current assignee: Shenzhen Mibo Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-11-27
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a realize disposable biopsy needle of supersound reflection and outer syringe detachable, include: the puncture needle comprises a shell, a pull rod, a connector and a puncture needle; the shell comprises a base and a top cover; the base is provided with a sliding chute, and the pull rod can be slidably arranged in the sliding chute; the connector is slidably arranged on the base above the pull rod and is connected with the pull rod, the connector is driven to move by the pull rod, and the stroke of the connector is controlled by the pull rod; the puncture needle is detachably arranged on the connector, and the needle point of the puncture needle is provided with an ultrasonic reflection area for realizing ultrasonic reflection to achieve the effect of needle point developing. The utility model discloses realize extracting the sample many times in same position, need not extra supplementary guide needle and do the guide, only need to realize the needle point development location through ultrasonic emission district reflection ultrasonic wave, the needle point development is effectual, ensures that the location is accurate, has reduced medical personnel's work burden, has still reduced patient's cost, and the structure is exquisite, facilitate promotion.

Description

Disposable biopsy needle capable of realizing ultrasonic reflection and detachable outer needle tube

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a disposable biopsy needle of realization supersound reflection and outer syringe detachable.

Background

Biopsy is a commonly used medical examination in which a biopsy needle is used to take a biopsy for pathological examination. At present, the existing biopsy needle cannot realize the disassembly and replacement of an outer needle tube, a specimen cannot be extracted from the same material taking position for multiple times, an additional auxiliary guide needle is needed for guidance, and a hemostatic material cannot be applied to the same position after the operation, so that the hemostatic effect is poor, the medical cost of a patient is increased, and the workload of medical staff is increased; on the other hand, when the ultrasonic equipment is used for assisting the biopsy needle in positioning, the needle point of the existing biopsy needle is not clearly developed, and the use experience is not good.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a disposable biopsy needle which can realize ultrasonic reflection and the detachable outer needle tube.

The technical scheme of the utility model as follows: a disposable biopsy needle for realizing ultrasonic reflection and detachable outer needle tube comprises: the puncture needle comprises a shell, a pull rod, a connector and a puncture needle; the shell is divided into a base and a top cover; the base is provided with a sliding chute, and the pull rod can be slidably arranged in the sliding chute; the connector is slidably mounted on the base above the pull rod and is connected with the pull rod, and when the connector is used, the connector is driven to move by the pull rod, and the stroke of the connector is controlled by the pull rod; the puncture needle is detachably mounted on the connector, and the needle point of the puncture needle is provided with an ultrasonic reflection area for realizing ultrasonic reflection to achieve the effect of needle point developing.

Preferably, the puncture needle comprises an outer sleeve and a needle core, and the needle core is detachably arranged in the outer sleeve; the needle point of the outer sleeve is provided with the ultrasonic reflection area for reflecting ultrasonic waves to realize the development and positioning of the needle point.

Preferably, the joint of outer tube is equipped with the locking piece, the connector be equipped with the locking groove of locking piece adaptation, the connector with the outer tube realizes through locking groove and locking piece that detachable gomphosis is connected, convenient in the dismantlement of outer tube.

Preferably, the stylet is provided with a collection groove for accommodating a specimen.

Preferably, the end of the sliding groove is provided with a step for guiding the movement of the pull rod.

Preferably, the sliding groove is further provided with a bump on each of the left side and the right side of the step; the front side of each bump is provided with an inclined plane; the connector corresponds every the position of lug is equipped with the chute, the connector is in every the front side of chute still is equipped with first spacing groove and second spacing groove in proper order, is used for spacing in order to realize stroke control respectively.

Preferably, the pull rod comprises a pull rod head, a latch hook and a spring mounting seat;

the pull rod head is provided with a limiting block for controlling the stroke of the pull rod;

the lock hook is arranged on the pull rod head, the pull rod is arranged in the sliding groove in a sliding mode through the lock hook, the connector is arranged on the base in a sliding mode above the lock hook, a lock hook groove is formed in the position, corresponding to the lock hook, of the connector, the lock hook drives the connector to move when the connector is used, and a limiting effect is achieved on the connector;

the spring mounting seat is arranged on the pull rod head above the lock hook, a spring is sleeved on the spring mounting seat, one end of the spring is further arranged on the connector, and an elastic force is provided between the spring mounting seat and the connector.

By adopting the scheme, the utility model discloses following beneficial effect has:

1. the utility model discloses puncture needle detachable design realizes drawing the sample in same position many times, need not extra supplementary guide needle and makes the guide, only needs to realize the needle point development location through ultrasonic emission area reflection ultrasonic wave, and the needle point development is effectual, ensures the location accuracy, has reduced medical personnel's work burden, has still reduced patient's cost, and the structure is exquisite, the facilitate promotion;

2. the design of the joint of the outer sleeve pipe in the preferred scheme realizes being connected of outer sleeve pipe and syringe, can draw the quick hemostatic material of injection in position at the sample after the art, has greatly reduced the risk that the patient bleeds more than once, uses and experiences well.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an exploded view of the structure of the present invention

Fig. 4 is a schematic structural view of the puncture needle of the utility model;

FIG. 5 is a schematic view of the positioning principle of the puncture needle of the present invention;

FIG. 6 is a schematic view of the puncture needle according to the present invention;

fig. 7 is a schematic structural diagram of the connector of the present invention;

fig. 8 is a schematic structural view of the pull rod of the present invention;

fig. 9 is a schematic structural diagram of the base of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 9, the utility model provides a disposable biopsy needle with detachable ultrasonic reflection and outer needle tube, which comprises: the puncture needle comprises a shell 1, a pull rod 2, a connector 3 and a puncture needle 4; the shell 1 is divided into a base 11 and a top cover 12 which can be mutually buckled and connected; a sliding groove 111 is formed in the base 11, and the pull rod 2 is slidably mounted in the sliding groove 111; the connector 3 is slidably mounted on the base 11 above the pull rod 2, the connector 3 is connected with the pull rod 2, the connector 3 is driven to move by the pull rod 2 when the connector is used, and the stroke of the connector 3 is controlled by the pull rod 2; the puncture needle 4 is detachably mounted on the connector 3, and the needle point of the puncture needle 4 is provided with an ultrasonic reflection area 411 for realizing ultrasonic reflection to achieve the effect of needle point developing.

A step 112 is arranged at the tail end of the sliding groove 111, and the step 112 is divided into a first step, a second step and a third step and is used for guiding the movement of the pull rod 2; the spout 111 still in the left and right sides of ladder 112 is equipped with lug 113 respectively, and every the front side of lug 113 is equipped with the inclined plane, and is corresponding, connector 3 corresponds every the position of lug 113 is equipped with chute 31, connector 3 is in every chute 31's front side still is equipped with first spacing groove 32 and second spacing groove 33 in proper order, is used for spacing in order to realize stroke control respectively.

The pull rod 2 comprises a pull rod head 21, a lock hook 22 and a spring mounting seat 23; the pull rod head 21 is provided with a limit block 211 for controlling the stroke of the pull rod 2; the lock hook 22 is fixedly installed on the pull rod head 21, the pull rod 2 is installed in the sliding groove 111 through the lock hook 22 in a forward and backward sliding manner, the connector 3 is installed on the base 11 above the lock hook 22 in a forward and backward sliding manner, a lock hook groove is formed in the position, corresponding to the lock hook 22, of the connector 3, and when the connector is used, the lock hook 22 drives the connector 3 to move, and a limiting effect is achieved on the connector 3; the spring mounting seat 23 is fixedly mounted on the tie bar 21 above the latch hook 22, the spring 231 is sleeved on the spring mounting seat 23, one end of the spring 231 is fixedly mounted on the connector 3, and an elastic force is provided between the spring mounting seat 23 and the connector 3.

The puncture needle 4 comprises an outer sleeve 41 and a needle core 42, and the needle core 42 is detachably arranged in the outer sleeve 41; the needle point of the outer sleeve 41 is provided with the ultrasonic reflection area 411 for ultrasonic reflection treatment, and ultrasonic waves emitted by ultrasonic equipment are reflected by the ultrasonic reflection area 411 when the ultrasonic probe is used, so that the purpose of developing and positioning the needle point is achieved, and the accuracy of specimen drawing is effectively ensured; the joint of the outer sleeve 41 is matched with an injector, the joint of the outer sleeve 41 is provided with a locking block 412, correspondingly, the front side of the connector 3 is provided with a locking groove 34 matched with the locking block 412, the connector 3 and the outer sleeve 41 are detachably connected in an embedded manner through the locking groove 34 and the locking block 412, and the outer sleeve 41 is convenient to detach;

wherein, the end surface of the needle point of the outer sleeve 41 is a cambered surface;

the needle core 42 is provided with a collection groove 421 for accommodating a specimen.

The utility model discloses working process and principle as follows: firstly, the puncture needle 4 is placed on the surface of a tissue to be taken of a patient, the pull rod head 21 is pressed, the locking hook 22 slides forwards along the step 112, the connector 3 is driven by the locking hook 22 to slide forwards, the puncture needle 4 moves along with the connector 3 in the same direction, at the moment, the outer sleeve 41 and the needle core 42 synchronously puncture the tissue to be taken of the patient, and the spring 231 is gradually compressed; when the latch hook 22 slides to the end of the third step, the stopper 211 abuts against the base 11 to stop the movement of the pull rod 2, and under the action of the third step, the latch hook 22 pushes the connector 3 upwards to cause the first stopper 32 of the connector 3 to be separated from the bump 113, the bump 113 no longer limits the movement of the connector 3, the restriction of the spring 231 is released, the spring 231 extends to push the connector 3 to continue to move forwards, the connector 3 stops when moving forwards to abut against the latch hook 22, the outer sleeve 41 continues to penetrate into the tissue to be taken of the patient under the driving of the connector 3, and at this time, the needle core 42 does not move any more to complete the cutting action of the specimen; then, the connector 3 is rotated 90 degrees with respect to the outer tube 41, the locking block 412 of the outer tube 41 is disengaged from the locking groove 34 of the connector 3, and the outer tube 41 is completely removed, at this time, the stylet 42 in the outer tube 41 is removed to extract the specimen, a new stylet 42 is placed in the outer tube 41 as needed, the locking groove 34 of the connector 3 is aligned with the locking block 412 of the outer tube 41, the connector 3 is rotated in the reverse direction, the locking block 412 of the outer tube 41 is fitted in the locking groove 34, and the outer tube 41 is installed, and the specimen is removed again at the same position by repeating the above-mentioned specimen removing operation, and the specimen is removed again at the same position, and the specimen is removed a plurality of times at the same position.

Compared with the prior art, the utility model discloses following beneficial effect has:

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a realize that supersound reflection and outer needle cannula detachable once only biopsy needle which characterized in that includes: the puncture needle comprises a shell, a pull rod, a connector and a puncture needle; the shell is divided into a base and a top cover; the base is provided with a sliding chute, and the pull rod can be slidably arranged in the sliding chute; the connector is slidably mounted on the base above the pull rod and is connected with the pull rod, and when the connector is used, the connector is driven to move by the pull rod, and the stroke of the connector is controlled by the pull rod; the puncture needle is detachably mounted on the connector, and the needle point of the puncture needle is provided with an ultrasonic reflection area for realizing ultrasonic reflection to achieve the effect of needle point developing.

2. The disposable biopsy needle capable of reflecting ultrasound and detaching an outer needle tube according to claim 1, wherein the puncture needle comprises an outer cannula and a core, the core is detachably disposed in the outer cannula; the needle point of the outer sleeve is provided with the ultrasonic reflection area for reflecting ultrasonic waves to realize the development and positioning of the needle point.

3. The disposable biopsy needle capable of realizing ultrasonic reflection and disassembling the outer needle tube according to claim 2, wherein the joint of the outer cannula is provided with a locking block, the connector is provided with a locking groove matched with the locking block, and the connector and the outer cannula are detachably connected in an embedded manner through the locking groove and the locking block, so that the outer cannula is conveniently disassembled.

4. The disposable biopsy needle capable of realizing ultrasonic reflection and detachable outer needle tube according to claim 2 or 3, wherein the needle core is provided with a collection groove for accommodating a specimen.

5. The disposable biopsy needle capable of reflecting ultrasound and detaching an outer needle tube according to claim 1, wherein the end of the sliding groove is provided with a step for guiding the movement of the pull rod.

6. The disposable biopsy needle for realizing ultrasonic reflection and detachable outer needle tube according to claim 5, wherein the sliding groove is further provided with a convex block on the left side and the right side of the step respectively; the front side of each bump is provided with an inclined plane; the connector corresponds every the position of lug is equipped with the chute, the connector is in every the front side of chute still is equipped with first spacing groove and second spacing groove in proper order, is used for spacing in order to realize stroke control respectively.

7. The disposable biopsy needle capable of realizing ultrasonic reflection and detaching the outer needle tube according to claim 1, wherein the pull rod comprises a pull rod head, a latch hook and a spring mounting seat;