CN212650895U - Adapter, needle groove plate assembly, puncture support and biopsy device - Google Patents

Abstract

The utility model discloses an adapter, which is a hollow structure and comprises a needle feeding part, a connecting part and a matching part which are coaxial and connected in sequence; the matching part is used for being inserted into a needle penetrating hole in the needle groove plate, and the outer surface of the matching part is a cylindrical surface; the inner surface of the needle inlet part is a cylindrical surface or a conical surface; the inner surface of the connecting part is a cylindrical surface or a conical surface; the outer surface of the matching part is a cylindrical surface or a conical surface. The utility model also provides a needle groove board subassembly, puncture support and biopsy device.

Description

Adapter, needle groove plate assembly, puncture support and biopsy device

Technical Field

The utility model relates to the technical field of medical supplies, in particular to an adapter, a needle groove plate component, a puncture support and a biopsy device.

Background

With the change of life style of people in recent years, the incidence rate of prostate in men is on a continuous rising trend, which seriously threatens the health and life quality of people, especially belongs to a common disease in the elderly male population.

At present, the prostate biopsy is generally adopted to detect and examine prostate diseases, a small amount of sample tissues are required to be taken out from different parts of the prostate during ultrasonic biopsy so as to achieve the purpose of definite diagnosis, and the biopsy has small wound and high accuracy, so that the biopsy is widely applied clinically. Commonly used biopsy sampling routes are the transrectal and transperineal routes; among them, the transrectal route has some drawbacks, mainly including: 1. the ultrasonic probe and the puncture bracket reach the prostate position through the rectum inlet, and bacteria inside the rectum easily cause higher infection risk; 2. the puncture position is limited to have certain blind area. Therefore, transperineal puncture is the mainstream method of prostate biopsy at present, and has the advantages of sterile operation, small infection risk, comprehensive sampling and the like.

Although ISO and national standards have specified diameter ranges of the coaxial needles, manufacturers do not basically refer to the diameter ranges of the ISO and national standards due to the special usability of the coaxial needles, so that the diameter sizes of the coaxial needles manufactured by manufacturers of different brands are different. Although the puncture needle is manufactured according to the needle diameter strictly specified by ISO and national standards, the diameter difference of the puncture needle between different brands is large due to the large tolerance range of the needle diameter specified in the standards. In the use process, after the coaxial needle or the puncture needle is inserted into a needle channel arranged on the puncture bracket, the coaxial needle or the puncture needle is kept stable and cannot be loosened, so that the requirements of convenience and safety in the operation can be met. Therefore, the limitation of matching between the puncture support and the coaxial needle or the puncture needle is caused, and if the puncture support meets the matching requirement of one brand of coaxial needle or puncture needle, the matching requirement of other brands of coaxial needles or puncture needles cannot be met. The fit, looseness or tightness, can affect the operation, and can not achieve the satisfactory effect in the operation.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an adapter, needle trough plate subassembly, puncture support and biopsy device has simple structure, and is with low costs, and the flexible operation is convenient, can be with the pjncture needle of different models and puncture support advantage such as fixed in the operation.

In order to achieve the above object, according to one aspect of the present invention, there is provided an adapter having a hollow structure, including a needle feeding portion, a connecting portion, and a fitting portion, which are coaxially and sequentially connected; the matching part is used for being inserted into a needle penetrating hole in the needle groove plate, and the outer surface of the matching part is a cylindrical surface; the inner surface of the needle inlet part is a cylindrical surface or a conical surface; the inner surface of the connecting part is a cylindrical surface or a conical surface; the inner surface of the matching part is a cylindrical surface or a conical surface.

Optionally, the outer surface of the needle feeding part is a cylindrical surface or a conical surface; the outer surface of the connecting part is a cylindrical surface or a conical surface.

Optionally, the cylindrical surface is a cylindrical surface, and/or the conical surface is a conical surface.

Optionally, the needle feeding portion, the connecting portion and the matching portion are made of elastic materials.

In another aspect of the present invention, there is provided a slot plate assembly, comprising a slot plate and an adapter, wherein the slot plate comprises a slot arm and a clamping assembly, the slot arm is provided with a plurality of parallel needle holes, the needle holes are distributed along the height direction of the slot arm and penetrate through the slot arm along the width direction of the slot arm; the clamping component is positioned at the bottom of the needle groove arm and is used for connecting the puncture bracket; the matching part is at least partially inserted into the needle penetrating hole.

Optionally, a plurality of beams are arranged on the side wall of the slot arm in parallel along the height direction of the slot arm, and the needle passing hole is a gap between the beams.

Optionally, the width of the entrance into the perforation hole from the radial direction of the perforation hole is smaller than the inner diameter of the perforation hole.

Optionally, the clamping assembly comprises a protruding structure and two plugging arms, wherein: the two insertion arms are arranged at the edge of the bottom of the needle groove arm along the width direction of the needle groove arm; the protruding structure is arranged on the bottom surface of the needle groove arm and located between the two inserting arms, and the protruding structure is provided with a third inclined surface and a third straight end surface.

In another aspect, the present invention provides a puncture support, including the needle groove plate assembly.

The utility model discloses a still another aspect provides a biopsy device, including ultrasonic probe, puncture support and biopsy needle, be provided with on the puncture support needle groove board subassembly.

According to the technical scheme of the utility model, when needs carry out the biopsy operation, with pjncture needle or coaxial needle pass through needle portion, connecting portion and cooperation portion in proper order, the pjncture needle or the coaxial needle that stretch out cooperation portion arrange the pinhole in of slotted groove board to fix pjncture needle or coaxial needle on the puncture support.

Drawings

For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a biopsy device provided by the present invention;

fig. 2 is a schematic structural diagram of an adapter provided by the present invention;

fig. 3 is a schematic cross-sectional view of an adapter provided by the present invention;

FIG. 4 is a schematic structural view of a slotted plate half-wrapping through a pinhole;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the bottom of the slot plate;

FIG. 7 is a schematic structural view of a slotted plate fully covering a pinhole;

FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective;

FIG. 9 is a schematic structural view of the main body portion;

FIG. 10 is a schematic structural view of a mating portion;

FIG. 11 is a schematic view of a top clip of the mating portion;

FIG. 12 is a schematic view of a bottom projection of the mating portion;

FIG. 13 is a schematic view of the main body portion and mating portion when assembled;

fig. 14 is a schematic structural view of the main body portion and the mating portion after assembly.

Description of the reference numerals

1-an adapter; 11-a needle feeding part; 12-a connecting part; 13-a mating portion; 2, puncturing needle; 3-an ultrasonic probe; 4-puncture support; 5-a slot plate; 51-a slot arm; 52-a plug-in arm; 53-a body portion; 54-a mating portion; 511-depth identification; 512-specification identification; 513-puncturing the needle hole; 520-raised structures; 521-a third slope; 522-a third straight end face; 531-well; 532-docking platform; 533-groove; 541-buckling; 542-raised structures; 543-bumps; 5411-first plate; 5412-second plate; 5413-handle; 5421-fourth bevel; 5422-fourth straight end face; 5131-groove.

Detailed Description

Exemplary embodiments of the invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Fig. 1 is a schematic structural view of a biopsy apparatus according to an embodiment of the present invention, as shown in fig. 1, the biopsy apparatus provided by the present invention includes a puncture support 4, a puncture needle 2, and an ultrasonic probe 3, wherein a needle groove plate 5 is disposed on the puncture support 4; the puncture needle 2 penetrates through the adapter 1, and the part of the puncture needle 2 extending out of the adapter 1 is placed in the puncture hole of the needle groove plate 5.

The utility model provides an adapter which is a hollow structure and comprises a needle inserting part 11, a connecting part 12 and a matching part 13 which are coaxial and connected in sequence; the fitting part 13 is used for inserting into a needle hole on the needle groove plate, so that the outer surface of the fitting part 13 is a cylindrical surface. For the needle inlet portion 11 and the connecting portion 12, the outer surface shapes of the two may be selected from cylindrical surfaces and conical surfaces, preferably cylindrical surfaces or conical surfaces.

The inner surfaces of the needle inlet portion 11, the connecting portion 12 and the fitting portion 13 may be selected from cylindrical surfaces and conical surfaces, preferably cylindrical surfaces or conical surfaces. The three can be connected in an integrated manner or in a detachable manner. And the three parts can be made of elastic materials, such as TPU, EPDM, rubber and the like.

The following description is made of preferred embodiments of the present invention.

Fig. 2 is a schematic structural view of an adapter according to an embodiment of the present invention, as shown in fig. 2, the present invention provides an adapter 1 including a needle feeding portion 11, a connecting portion 12 and a matching portion 13 connected in sequence, the needle feeding portion 11, the connecting portion 12 and the matching portion 13 are mutually connected, and the needle feeding portion 11, the connecting portion 12 and the matching portion 13 are coaxial. The needle inlet part 11, the connecting part 12 and the matching part 13 are connected integrally.

Fig. 3 is a schematic cross-sectional view of an adapter according to an embodiment of the present invention, as shown in fig. 3, the needle inserting portion 11 is a hollow cylindrical structure, and the inner diameter of the needle inserting portion 11 is gradually reduced along a direction in which the axial direction is close to the connecting portion 12.

The inner channel of the needle inlet part 11 can be a conical surface channel, and when the puncture needle penetrates into the channel, the needle point of the puncture needle is close to one end with smaller inner diameter of the needle inlet part 11, so that the puncture needle is favorably fixed.

The fitting portion 13 has a hollow cylindrical structure, and the inner diameter of the fitting portion 13 is set to be equal. When the coaxial needle or the puncture needle is inserted into the needle-passing hole of the slot plate 5 through the adapter 1 and the needle head portion, the fitting portion 13 may also be inserted into the needle-passing hole of the slot plate 5, thereby contributing to maintaining the stability and directionality of the coaxial needle or the puncture needle. In addition, the coaxial needle or the puncture needle is stably matched with the puncture bracket without looseness, and the safety and the accuracy of the puncture operation are further facilitated. The outer diameter of the matching part 13 is smaller than the outer diameter of the needle inlet part 11, and the inner diameter of the matching part 13 is equal to the minimum inner diameter of the needle inlet part 11.

The first end of the connecting part 12 is connected with the needle inserting part 11, and the outer diameter of the first end of the connecting part 12 is equal to that of the needle inserting part 11. The second end of the connecting portion 12 is connected to the fitting portion 13, and the outer diameter of the second end of the connecting portion 12 is equal to the outer diameter of the fitting portion 13. On the connecting portion 12, the outer diameter gradually decreases from a first end of the connecting portion 12 to a second end of the connecting portion 12. The inner diameter of the connecting portion 12 is set to be equal, and the inner diameter of the connecting portion 12 is equal to the inner diameter of the fitting portion 13.

The application provides an adapter 1, because needle feeding portion 11, connecting portion 12 and cooperation portion 13 are the elastic material and make, needle feeding portion 11, connecting portion 12 and cooperation portion 13's internal diameter size all can float in certain size range and change, therefore different producers produce pjncture needle or coaxial needle and although have the little difference in the diameter, all can with adapter 1 firm and the cooperation that does not rock. Therefore, in the using process, puncture needles or coaxial needles with different sizes produced by different manufacturers can be stably matched with the adapter 1, and the adapter 1 is stably matched with a puncture support needle channel arranged on a puncture support, so that the aims of stably matching the puncture needles or the coaxial needles with the puncture support and preventing the puncture needles or the coaxial needles from loosening in the needle inserting or withdrawing process are indirectly fulfilled.

FIG. 4 is a schematic structural view of a slotted plate half-wrapping through a pinhole; FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective; FIG. 6 is a schematic view of the bottom of the slot plate; as shown in fig. 4 to 6, the slot plate 5 includes a slot arm 51 and two insertion arms 52, wherein the slot arm 51 is provided with a depth mark 511 and a specification mark 512, and the two insertion arms 52 are provided at the edge of the bottom of the slot arm 51 along the width direction of the slot arm 51. The bottom surface of the slot arm 51 is provided with a raised structure 520, and the raised structure 520 is located between the two insertion arms 52. The protruding structure 520 includes a third inclined surface 521 and a third straight end surface 522.

In the embodiment of the present invention, the needle threading hole 513 is a fully closed hole or a semi-closed hole, wherein a plurality of beams are arranged in parallel along the height direction of the needle slot arm 51 on the sidewall of the needle slot arm 51, and a semi-closed hole is formed in the space between the plurality of beams; alternatively, the needle passing hole 513 is a hole penetrating the slot plate 5 with an integral inner wall, which is a fully closed hole. As shown in fig. 4 and 5, the needle passing holes 513 in the slot plate 5 are semi-closed holes; FIG. 7 is a schematic structural view of a slotted plate fully covering a pinhole; FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective; the needle holes 513 in the slot plate 5 in fig. 7 and 8 are fully closed holes. The positions of the needle-threading holes 513 correspond to the positions of the depth marks 511 one by one, and the needle-threading holes conform to a needle inserting route set by software in an ultrasonic machine; the size of the pinhole 513 is in one-to-one correspondence with the specification mark 512; the model of puncture hole 513 can be selected according to actual requirements, wherein, when a semi-closed hole structure is adopted, when a doctor needs to separate a puncture needle from a puncture needle frame, the puncture needle or a biopsy needle can be quickly moved out from the opening on the puncture hole 513 in parallel, so that an ultrasonic probe and a puncture bracket can be quickly removed, and the puncture needle is left in a human body for administration or treatment and other operations.

Because the slotted plate 5 is an independent structure, it is only required to be clamped on the rod 4, and therefore, the slotted plate 5 can have various structural forms. FIG. 9 is a schematic structural view of the main body portion; FIG. 10 is a schematic structural view of a mating portion; FIG. 11 is a schematic view of a top clip of the mating portion; FIG. 12 is a schematic view of a bottom projection of the mating portion; as shown in fig. 9 to 12, the slot plate 5 may further adopt a split structure, that is, the slot arm 51 includes a main body portion 53 and a fitting portion 54, a groove 5131 is provided on an abutting surface of the fitting portion 54, and the abutting surface of the main body portion 53 abuts against the fitting portion 54 to form a closed hole.

Wherein the main body portion 53 and the fitting portion 54 are connected by a connecting assembly; the connecting assembly comprises a hole 531 positioned at the top of the main body part 53 and a buckle 541 positioned at the top of the matching part 54, the buckle 541 comprises a first flat plate 5411 perpendicular to the butt joint surface of the matching part 54, the free end of the first flat plate 5411 is connected with a second flat plate 5412 arranged in parallel with the first flat plate 5411, the first flat plate 5411 and the second flat plate 5412 form a U-shaped structure, the free end of the second flat plate 5412 extends out of the surface of the matching part 54, the surface is a plane far away from the butt joint surface of the matching part 54, the upper surface of the second flat plate 5412 is provided with a projection structure 542, and the projection structure 542 is provided with a fourth inclined surface 5421 and a fourth straight end surface 5422; the bottom of the main body 53 is provided with a docking platform 532 for docking with the bottom of the mating part 54, the docking platform 532 is provided with a groove 533, and the bottom of the mating part 54 is provided with a protrusion 543 for plugging in the groove 533.

FIG. 13 is a schematic view of the main body portion and mating portion when assembled; FIG. 14 is a schematic view of the assembled structure of the main body portion and the mating portion; as shown in fig. 13, when the main body 53 and the mating portion 54 are assembled, the protrusion 543 is inserted into the groove 533, the mating portion 54 is moved by the center point of the protrusion 543 and the groove 533, so that the mating surface of the mating portion 54 is attached to the mating surface of the main body 53, wherein during the moving process, the buckle 541 is inserted into the hole 531, the second plate 5412 can be deformed downward (pressed or manually pressed), and can be automatically reset, so that the protrusion 542 is automatically reset after passing through the hole 531, and finally the fourth finger end surface 5422 abuts against the hole 531 to form the assembly structure shown in fig. 14. When the second plate 5412 is detached, the handle 5413 on the second plate 5412 is pressed by hand to deform the second plate 5412, at this time, the protrusion 542 can be separated from the block of the peripheral sidewall of the hole 531, and further the buckle 541 is separated from the hole 531, and finally, the protrusion 543 at the bottom of the fitting portion 54 is pulled out from the groove 533.

The needle groove plate 5 adopts a split structure, and when the needle groove plate is used, matching parts 54 with different types can be assembled with the main body part 53, so that the needle groove plates 5 with different types are formed, and different use requirements in a biopsy operation are met.

The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An adapter is characterized in that the adapter is of a hollow structure and comprises a needle feeding part, a connecting part and a matching part which are coaxial and sequentially connected;

the matching part is used for being inserted into a needle penetrating hole in the needle groove plate, and the outer surface of the matching part is a cylindrical surface;

the inner surface of the needle inlet part is a cylindrical surface or a conical surface;

the inner surface of the connecting part is a cylindrical surface or a conical surface;

the inner surface of the matching part is a cylindrical surface or a conical surface.

2. The adapter of claim 1,

the outer surface of the needle inlet part is a cylindrical surface or a conical surface;

the outer surface of the connecting part is a cylindrical surface or a conical surface.

3. The adapter of claim 1,

the cylindrical surface is a cylindrical surface, and/or the conical surface is a conical surface.

4. The adapter according to any one of claims 1 to 3,

the needle feeding part, the connecting part and the matching part are all made of elastic materials.

5. A slot plate assembly, comprising a slot plate and an adapter according to any one of claims 1 to 4,

the needle groove plate comprises a needle groove arm and a clamping component, the needle groove arm is provided with a plurality of parallel needle penetrating holes, the needle penetrating holes are distributed along the height direction of the needle groove arm and penetrate through the needle groove arm along the width direction of the needle groove arm; the clamping component is positioned at the bottom of the needle groove arm and is used for connecting the puncture bracket;

the outer diameter of the matching part is smaller than the inner diameter of the needle penetrating hole.

6. The needle slot plate assembly according to claim 5, wherein a plurality of beams are provided in parallel in a height direction of the needle slot arm on a side wall of the needle slot arm, and the needle passing hole is a gap between the plurality of beams.

7. The needle slot plate assembly of claim 5, wherein a width of an entrance into the needle passing aperture from a radial direction of the needle passing aperture is less than an inner diameter of the needle passing aperture.

8. The needle trough plate assembly of claim 5, wherein the snap assembly comprises a projection structure and two insertion arms, wherein:

the two insertion arms are arranged at the edge of the bottom of the needle groove arm along the width direction of the needle groove arm;

the protruding structure is arranged on the bottom surface of the needle groove arm and located between the two inserting arms, and the protruding structure is provided with a third inclined surface and a third straight end surface.

9. A puncture holder comprising a slot plate assembly according to any one of claims 5 to 8.

10. A biopsy device comprising an ultrasound probe, a needle holder, and a biopsy needle, the needle holder having the needle slot plate assembly of any one of claims 5 to 8 disposed thereon.

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