CN217723639U

CN217723639U - Puncture outfit

Info

Publication number: CN217723639U
Application number: CN202120840804.8U
Authority: CN
Inventors: 莫易凡; 胡林锋; 黄博泽; 许得坤; 林聪杰; 罗燕兰
Original assignee: Surgaid Medical (xiamen) Co ltd
Current assignee: Surgaid Medical (xiamen) Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-11-04
Anticipated expiration: 2031-04-22

Abstract

The embodiment of the application provides a puncture ware, includes: puncture seat, dismouting subassembly and puncture subassembly. The dismounting assembly comprises an elastic buckle connected with the puncture seat. The elastic buckle is provided with a deformation hole. The end of the puncture component passes through the deformation hole and is connected with the puncture seat in a driving way. Under the state that the elastic buckle is not acted by external force, the projection of the end on the plane where the deformation hole is located is overlapped with the deformation hole part. Under the state that the elastic buckle is under the action of external force, the projection of the end on the plane where the deformation hole is located falls into the deformation hole. The dismouting subassembly of puncture ware that this application embodiment provided has the elasticity buckle, and the size or the shape in shape hole in the elasticity buckle can change under the condition that receives external force to the realization is to the spacing of the end of puncture subassembly or makes the end of puncture subassembly freely pass through and connect in the puncture seat, and this kind of connected mode is convenient fast, can realize quick assembly disassembly puncture subassembly and puncture seat.

Description

Puncture outfit

Technical Field

The application relates to the technical field of medical instruments, in particular to a puncture outfit.

Background

In the puncture outfit which is widely used at present, the puncture outfit is generally structured by combining a puncture sheath and a puncture needle into a puncture assembly, and then the operation is carried out. Most of the prior art directly use the gun type puncture needles, and doctors can more easily apply force in the processes of holding and operating the gun type puncture needles in the clinical use process, but the puncture needles of the type can only be used once, and the cost is higher. In the prior art, or a gun type puncture seat capable of being repeatedly used is connected with and fixes the puncture assembly, but the puncture seat and the puncture assembly are not easy to disassemble or assemble, so that the puncture assembly is not beneficial to clinical use.

SUMMERY OF THE UTILITY MODEL

This application is directed against the shortcoming of current mode, provides a puncture ware for current gun type puncture ware that solves prior art existence can only disposable, and the cost is higher, or is difficult for dismantling or assemble between puncture seat and the puncture subassembly, is unfavorable for clinical use's technical problem.

The embodiment of the application provides a puncture ware, includes: puncture seat, dismouting subassembly and puncture subassembly. The dismounting assembly comprises an elastic buckle connected with the puncture seat.

The elastic buckle is provided with a deformation hole.

The end head of the puncture component passes through the deformation hole and is in driving connection with the puncture seat.

Under the state that the elastic buckle is not acted by external force, the projection of the end on the plane where the deformation hole is located is overlapped with the deformation hole part.

Under the state that the elastic buckle is under the action of external force, the projection of the end on the plane where the deformation hole is located falls into the deformation hole.

Optionally, the resilient catch comprises: the first deforming structure, the second deforming structure, and the connecting structure connecting the first deforming structure and the second deforming structure.

The first deformation structure is provided with a first through hole, and the first through hole forms a deformation hole.

The second deformation structure has a second through hole.

The projection of the first deformation structure on the plane of the second deformation structure is positioned in the second through hole.

Optionally, the elastic buckle further comprises: the fixed cover, the first handle and the supporting part are arranged oppositely.

The first handle and the supporting part are respectively connected with the second deformation structure.

The fixing cover is provided with a third through hole corresponding to the deformation hole, an accommodating area is formed on one side, close to the elastic buckle, of the fixing cover and the puncture seat, and the elastic buckle is arranged in the accommodating area.

The periphery of the fixed cover is provided with a first opening. The first handle penetrates through the first opening to extend out of the accommodating area, and one end, far away from the second deformation structure, of the supporting portion is abutted to the inner side wall of the fixing cover. Optionally, the connection structure comprises: the first connecting structure and the second connecting structure are arranged oppositely.

Under the state that the elastic buckle is not affected by external force, the deformation hole is elliptical, the projections of the first connecting structure and the second connecting structure on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the short axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

Optionally, the elastic buckle further comprises: a first handle and a second handle which are arranged oppositely.

The first handle and the second handle are respectively connected with the second deformation structure.

Under the condition that the elastic buckle is not acted by external force, the projections of the first handle and the second handle on the plane where the deformation holes are located respectively form a beta included angle with the straight line where the long axis of the deformation holes is located, and the beta is more than or equal to 0 and less than 45 degrees. Or, under the state that the elastic buckle is not acted by external force, the projections of the first handle and the second handle on the plane where the deformation hole is located respectively form a beta included angle with the straight line where the short axis of the deformation hole is located, wherein beta is more than or equal to 0 and less than 45 degrees.

Optionally, the connection structure comprises: the first connecting structure and the second connecting structure are oppositely arranged.

Under the state that the elastic buckle is not affected by external force, the deformation hole is elliptical, the projections of the first connecting structure and the second connecting structure on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the long axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

Under the state that the elastic buckle is not acted by external force, the projections of the first handle and the second handle on the plane where the deformation hole is located respectively form a beta included angle with the straight line where the long axis of the deformation hole is located, and beta is more than or equal to 0 and less than 45 degrees. Or, under the state that the elastic buckle is not acted by external force, the projections of the first handle and the second handle on the plane where the deformation hole is located respectively form a beta included angle with the straight line where the short axis of the deformation hole is located, wherein beta is more than or equal to 0 and less than 45 degrees.

Optionally, the dismounting assembly further comprises: and (5) fixing the cover.

The fixing cover and one side of the puncture seat close to the elastic buckle form an accommodating area, and the elastic buckle is arranged in the accommodating area.

The fixing cover has a third through hole corresponding to the deformation hole.

Optionally, the periphery of the fixed cover 52 has a first opening and a second opening. A first handle extends through the first opening to extend from the containment region and a second handle extends through the second opening to extend from the containment region.

Optionally, the dismounting assembly further comprises: and a limiting member.

The limiting part is fixedly connected with one side of the fixed cover close to the elastic buckle. The limiting piece is arranged in the second through hole. The locating part is used for when the elasticity buckle takes place deformation, carries on spacingly to at least one in first deformation structure, second deformation structure, first connection structure and the second connection structure. And/or the limiting piece is fixedly connected with one side of the puncture seat close to the elastic buckle. The limiting piece is arranged in the second through hole. The locating part is used for when the elasticity buckle takes place to deform, carries on spacingly to at least one in first deformation structure, second deformation structure, first connection structure and the second connection structure.

Optionally, the limiting member includes a first limiting block and a second limiting block connected to each other and forming an included angle therebetween. The first limiting block is used for limiting at least one of the first deformation structure and the second deformation structure when the elastic buckle deforms. The second limiting block is used for limiting at least one of the first connecting structure and the second connecting structure when the elastic buckle deforms.

The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:

the assembly and disassembly component in the puncture outfit is provided with an elastic buckle, and the puncture component passes through a deformation hole of the elastic buckle and then is connected with the puncture seat. The size or the shape of the deformation hole can be changed when the elastic buckle is under the action of external force, and when the elastic buckle is not under the action of external force, the size of the deformation hole is not consistent with that of the end head of the puncture assembly, and the end head cannot penetrate through the deformation hole. When the elastic buckle is acted by external force, the deformation hole can deform to a proper size, so that the end head penetrates through the deformation hole and then is connected with the puncture seat. The assembling and disassembling component can realize the quick assembling and disassembling between the puncture seat and the puncture component, thereby improving the efficiency of puncture operation; the puncture seat can be repeatedly used, so that the medical cost is saved; and the puncture assemblies with different sizes can be connected with the puncture seats with different sizes through the dismounting assembly, so that the compatibility of the puncture seats is improved, and the application scene is wide.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a puncture outfit provided in an embodiment of the present application;

fig. 2 is an exploded view of a puncture instrument according to an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of a puncture instrument according to an embodiment of the present application;

fig. 4 is a schematic structural view of an elastic buckle of a puncture outfit provided in the embodiment of the present application;

in the figure:

1-a puncture outfit; 10-a puncture seat; 40-a puncture assembly; 43-end; 50-a disassembly and assembly component; 51-elastic buckle; 511-a first deformed configuration; 5110-a first via; 512-a second deformed configuration; 5120-a second via; 513-a linking structure; 5131-a first connecting structure; 5132-a second connecting structure; 514-a first handle; 515-a support part; 516-a second handle; 52-a stationary cover; 520-a third via; 521-a first opening; 53-a stop; 531-a first stop block; 532-a second stopper; 70-adjusting the rod.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is unnecessary for the features of the present application shown, it is omitted. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The inventor of the present application has found that:

the gun type puncture outfit in the prior art is a disposable article, has higher cost, has a puncture outfit with a reusable puncture seat, is difficult to disassemble between the puncture seat and the puncture assembly, is not easy to assemble, and greatly reduces the use efficiency of the puncture outfit.

The following describes the technical solution of the present application and how to solve the above technical problems in detail by specific embodiments.

The embodiment of the present application provides a puncture device 1, please refer to fig. 1, including: a piercing receptacle 10, a detachment assembly 50 and a piercing assembly 40. The detachment assembly 50 comprises a resilient catch 51 connected to the puncture socket 10.

The resilient catch 51 has a deformation hole.

The tip 43 of the puncture assembly 40 passes through the deformation hole and is in driving connection with the puncture seat 10.

In a state where the elastic buckle 51 is not subjected to an external force, a projection of the tip 43 on a plane where the deformation hole is located overlaps with the deformation hole.

When the elastic buckle 51 is under the action of external force, the projection of the end 43 on the plane of the deformation hole falls into the deformation hole.

In this embodiment, the puncture device 1 has a detachable component 50 with an elastic buckle 51, and the puncture component 40 passes through the deformation hole of the elastic buckle 51 and then is connected with the puncture seat 10. The size or shape of the deformation hole of the elastic buckle 51 can be changed when the elastic buckle 51 is acted by external force, and when the elastic buckle 51 is not acted by external force, the size of the deformation hole is not matched with the size of the head 43 of the puncture assembly 40, and the head 43 cannot pass through the deformation hole. When the elastic buckle 51 is acted by external force, the deformation hole can be deformed to a proper size, so that the tip 43 passes through the deformation hole and then is connected with the puncture seat 10. The assembly and disassembly component 50 can realize the quick assembly and disassembly between the puncture seat 10 and the puncture component 40, thereby improving the efficiency of puncture operation; and the puncture seat 10 can be reused, so that the medical cost is saved; the puncture assemblies 40 with different sizes can be connected with the puncture seats 10 with different sizes through the dismounting assembly 50, so that the operation compatibility is improved, and the application scene is wide.

Optionally, the puncture outfit 1 further comprises an adjusting rod 70, one end of which is located in the puncture seat 10, and the other end of which extends into the puncture assembly 40 and is connected with the camera in the puncture assembly 40. The camera can make a video recording to internal tissue at the in-process of puncture operation, makes the doctor operate while observing the environment of internal tissue, avoids the puncture to cause unnecessary wound to patient's tissue.

In some possible embodiments, referring to fig. 2, the elastic buckle 51 includes: a first modified structure 511, a second modified structure 512, and a connecting structure 513 connecting the first modified structure 511 and the second modified structure 512.

The first deformation structure 511 has a first through hole 5110, and the first through hole 5110 forms a deformation hole.

The second deforming structure 512 has a second through-hole 5120.

The projection of the first deformed structure 511 onto the plane of the second deformed structure 512 is located within the second through hole 5120.

In this embodiment, the middle of the first deformation structure 511 of the elastic buckle 51 is hollow, the middle of the second deformation structure 512 is also hollow, the size of the first deformation structure 511 is smaller than that of the second deformation structure 512, the first deformation structure 511 is disposed in the second through hole 5120 of the second deformation structure 512, and since the first deformation structure 511 and the second deformation structure 512 are hollow and do not contact with each other, the first deformation structure 511 and the second deformation structure 512 are connected by using the connection structure 513, so that the first deformation structure 511 and the second deformation structure 512 are in a relatively stable connection state. When the second deforming structure 512 is acted by an external force, the first deforming structure 511 is also acted by the external force transmitted through the connecting structure 513, so as to deform, the first through hole 5110 is also deformed, and the first through hole 5110 forms a deformation hole, so that the tip 43 of the puncturing element 40 can pass through the deformation hole.

In some possible embodiments, the connection structure 513 includes: a first connection structure 5131 and a second connection structure 5132 disposed oppositely.

Under the condition that the elastic buckle 51 is not affected by external force, the deformation hole is in an oval shape, the projections of the first connecting structure 5131 and the second connecting structure 5132 on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the short axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

In the embodiment, the first connecting structure 5131 and the second connecting structure 5132 are disposed opposite to each other. When the elastic buckle 51 is in a relaxed state and is not acted by external force, the first through hole 5110 is elliptical, it can be understood that the elliptical hole is different from a circular hole, the elliptical first through hole 5110 has a major axis and a minor axis, and if the tip 43 of the puncture assembly 40 is cylindrical and the cross-sectional diameter at the tip 43 is larger than the minor axis of the elliptical deformation hole, the tip 43 cannot pass through the deformation hole. When the elastic buckle 51 is acted by external force, for example, the elastic buckle 51 is compressed, so that the major axis of the elliptical first through hole 5110 is compressed and shortened, the minor axis is lengthened, the elliptical first through hole 5110 is deformed into a deformed hole similar to a circle, and when the minor axis of the deformed hole is increased to be larger than the diameter of the cross section of the end 43, the end 43 can pass through the deformed hole; for another example, the elastic buckle 51 is stretched to elongate the minor axis of the elliptical first through hole 5110, and shorten the major axis to deform the elliptical first through hole 5110 into a deformed hole similar to a circle, so that the tip 43 can pass through the deformed hole when the minor axis of the deformed hole is increased to be larger than the diameter of the cross section of the tip 43 and the minor axis is still smaller than the major axis; this arrangement of the elastic buckle 51 can realize the quick penetration or quick removal of the tip 43 from the puncture socket 10, and can ensure that the puncture assembly 40 cannot be separated from the puncture socket 10 during the use, which is convenient and efficient.

In this embodiment, a connection line between the first connection structure 5131 and the second connection structure 5132 forms an angle α with a straight line where the short axis of the deformation hole is located, that is, the first connection structure 5131 and the second connection structure 5132 are respectively approximately overlapped with the short axis of the deformation hole or have a small deflection angle, and it is only necessary to lengthen the short axis in the deformation process.

Optionally, the first connection structure 5131 and the second connection structure 5132 are both in a long strip shape, and the first connection structure 5131 and the second connection structure 5132 are both disposed on a straight line where the short axis of the deformation hole is located.

It can be understood that the essence of the deformation of the first through hole 5110 is: the first connecting structure 5131 and the second connecting structure 5132 are stretched towards two ends of the short axis of the ellipse at the same time to drive the length of the short axis of the ellipse to change, when the first connecting structure 5131 and the second connecting structure 5132 are both arranged on the straight line where the short axis of the deformation hole is located, the first connecting structure 5131 and the second connecting structure 5132 are directly in a state of being stretched towards two ends of the short axis, namely the short axis can be deformed to the size matched with the end 43, and the deformation process of the elastic buckle 51 can be more labor-saving due to the arrangement mode.

Optionally, a clamping groove is formed at one end of the tip 43, which is far away from the puncture base, and after the puncture assembly 40 passes through the deformation hole, the frame of the deformation hole can be clamped into the clamping groove, so that the connection between the puncture assembly 40 and the puncture base 10 can be more stable.

Optionally, referring to fig. 2, the elastic buckle 51 further includes: a fixed cover 52, and a first handle 514 and a support portion 515 which are oppositely arranged;

the first handle 514 and the supporting part 515 are respectively connected with the second deforming structure 512;

the fixed cover 52 is provided with a third through hole 520 corresponding to the deformation hole, an accommodating area is formed between the fixed cover 52 and one side of the puncture seat 10 close to the elastic buckle 51, and the elastic buckle 51 is arranged in the accommodating area;

the periphery of the fixed cover 52 has a first opening 521; the first handle 514 passes through the first opening 521 to extend from the accommodating area, and one end of the supporting portion 515 away from the second deforming structure 512 abuts against the inner side wall of the fixed cover 52.

In this embodiment, the periphery of the fixed cover 52 has a first opening 521, the first handle 514 passes through the first opening 521 to extend out of the accommodating area, the supporting portion 515 abuts against the inner wall of the fixed cover 52, and the pressing of the first handle 514 can drive the oppositely disposed supporting portion 515 to press the inner wall of the fixed cover 52, so as to realize the deformation of the first deforming structure 511 and the second deforming structure 512.

In some possible embodiments, referring to fig. 2 and 4, the elastic buckle 51 further includes: a first handle 514 and a second handle 516 disposed in opposing relation.

First handle 514 and second handle 516 are each connected to second deformable structure 512.

Under the condition that the elastic buckle 51 is not acted by external force, the projections of the first handle 514 and the second handle 516 on the plane where the deformation holes are located respectively form an included angle beta with the straight line where the long axis of the deformation holes is located, wherein beta is more than or equal to 0 and less than 45 degrees.

In this embodiment, the first handle 514 and the second handle 516 are positions where the user applies an external force, and in a state where the elastic buckle 51 is not acted by the external force, projections of the first handle 514 and the second handle 516 on a plane where the deformation holes are located respectively form a β angle with a straight line where long axes of the deformation holes are located, where β is 0 ≤ β < 45 ° (i.e. the first handle 514 and the second handle 516 substantially coincide with the short axes of the deformation holes or have a small deviation angle), and when the first connecting structure 5131 and the second connecting structure 5132 form an α angle with the short axes of the deformation holes (i.e. the first connecting structure 5131 and the second connecting structure 5132 substantially coincide with the short axes of the deformation holes or have a small deviation angle), the deformation of the first deformation structure 511 and the deformation structure 512 can be realized by simultaneously pressing the first handle 514 and the second handle 516 arranged in an opposite direction, so that the short axes are lengthened. When the first connecting structure 5131 and the second connecting structure 5132 form an angle α with the long axis of the deformation hole, the first deformation structure 511 and the second deformation structure 512 can be deformed by stretching the first handle 514 and the second handle 516 which are oppositely arranged, so that the short axis is lengthened.

Optionally, in a state that the elastic buckle 51 is not acted by an external force, projections of the first handle 514 and the second handle 516 on a plane where the deformation hole is located respectively form an included angle β with a straight line where a short axis of the deformation hole is located, where β is greater than or equal to 0 and less than 45 °.

In this embodiment, in a state where the elastic buckle 51 is not subjected to an external force, projections of the first handle 514 and the second handle 516 on a plane where the deformation hole is located respectively form an included angle β with a straight line where a short axis of the deformation hole is located, where β is 0 or more and less than 45 °, and when the first connecting structure 5131 and the second connecting structure 5132 form an included angle α with a long axis of the deformation hole, deformation of the first deformation structure 511 and the second deformation structure 512 can be achieved by stretching the first handle 514 and the second handle 516 which are oppositely arranged, so that the short axis is lengthened.

Optionally, referring to fig. 3, the first deforming structure 511 is an elliptical ring, the second deforming structure 512 is a diamond-shaped frame, the first connecting structure 5131 and the second connecting structure 5132 are both long strips, on a straight line where a short axis of the elliptical first deforming structure 511 is located, the first connecting structure 5131 and the second connecting structure 5132 are oppositely arranged and connect two opposite corners of an outer wall of the first deforming structure 511 and an inner wall of the second deforming structure 512, and the first handle 514 and the second handle 516 are both located on a straight line where a long axis of the elliptical first deforming structure 511 is located and located at two opposite corners of the second deforming structure 512. Relative pressing of the first handle 514 and the second handle 516 increases the distance between two corners of the second deforming structure 512 connected to the first connecting structure 5131 and the second connecting structure 5132, respectively, so that the first deforming structure 511 is deformed by the first connecting structure 5131 and the second connecting structure 5132, that is, the short axis of the first deforming structure 511 is stretched, and the ellipse changes to a perfect circle, so that the tip 43 can pass through the first deforming structure 511.

In some possible embodiments, the connection structure 513 includes: a first connecting structure 5131 and a second connecting structure 5132 which are oppositely arranged.

Under the condition that the elastic buckle 51 is not affected by external force, the deformation hole is in an oval shape, the projections of the first connecting structure 5131 and the second connecting structure 5132 on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the long axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

In this embodiment, the projections of the first connecting structure 5131 and the second connecting structure 5132 on the plane of the deformation hole respectively form an α angle with the straight line of the long axis of the deformation hole, where α is greater than or equal to 0 and less than 45 °, and then by applying an external force to the elastic buckle 51, the long axis is shortened and the short axis is lengthened, so that the end 43 of the puncturing assembly 40 can pass through the deformation hole.

In some possible embodiments, referring to fig. 3, the elastic buckle 51 further includes: a first handle 514 and a second handle 516 disposed in opposing relation.

In the embodiment, in a state that the elastic buckle 51 is not acted by an external force, projections of the first handle 514 and the second handle 516 on a plane where the deformation hole is located respectively form an included angle β with a straight line where a long axis of the deformation hole is located, where β is 0-45 °, and when the first connection structure 5131 and the second connection structure 5132 respectively form an included angle α with the long axis of the deformation hole, deformation of the first deformation structure 511 and the second deformation structure 512 can be realized by pressing the first handle 514 and the second handle 516 which are oppositely arranged, so that the short axis is lengthened. When the first connecting structure 5131 and the second connecting structure 5132 form an angle α with the short axis of the deformation hole, the deformation of the first deformation structure 511 and the second deformation structure 512 can be realized by stretching the first handle 514 and the second handle 516 which are oppositely arranged, so that the short axis is lengthened.

In the embodiment, in a state that the elastic buckle 51 is not acted by an external force, projections of the first handle 514 and the second handle 516 on a plane where the deformation hole is located respectively form an included angle of β with a straight line where a short axis of the deformation hole is located, where β is 0-45 °, and when the first connection structure 5131 and the second connection structure 5132 form an included angle of α with the short axis of the deformation hole, deformation of the first deformation structure 511 and the second deformation structure 512 can be realized by stretching the first handle 514 and the second handle 516 which are oppositely arranged, so that the short axis is lengthened.

In some possible embodiments, the dismounting assembly 50 further comprises: the cover 52 is fixed.

The fixing cover 52 and one side of the puncture seat 10 close to the elastic buckle 51 form a containing area, and the elastic buckle 51 is arranged in the containing area.

The stationary cover 52 has a third through hole 520 corresponding to the deformation hole.

In this embodiment, the elastic buckle 51 is fixed on the puncture seat 10 by the fixing cover 52, when the puncture assembly 40 needs to be replaced, the puncture assembly 40 is disassembled through the whole assembly and disassembly assembly 50, the rest puncture seat 10 and assembly and disassembly assembly 50 can be reused, and the puncture seat 10 and assembly and disassembly assembly 50 are easy to sterilize because of less pollution.

Optionally, the periphery of the fixed cover 52 has a first opening 521 and a second opening (not shown in the figure). The first handle 514 extends through the first opening 521 to extend from the receiving area, and the second handle 516 extends through the second opening to extend from the receiving area.

In this embodiment, since the first handle 514 and the second handle 516 need to be pressed or stretched by the user and therefore need to be disposed outside the fixed cover 52, the periphery of the fixed cover 52 in this embodiment has the first opening 521 and the second opening, after the fixed cover 52 is fixed to the puncture base 10, the first opening 521 and the second opening can be sealed, and then the first handle 514 and the second handle 516 of the elastic buckle 51 are extended out without leaking out of the first opening 521 and the second opening.

Alternatively, two holes may be directly formed on the periphery of the fixed cover 52, the first handle 514 and the second handle 516 are extended from the holes, and two pressing portions are connected to the first handle 514 and the second handle 516, and the size of the pressing portions is larger than that of the holes on the periphery of the fixed cover 52, so that the first handle 514 and the second handle 516 do not need to fall into the accommodating area.

It will be appreciated that when the resilient latch 51 is subjected to a sufficient force, the resilient latch 51 is deformed excessively, for example, the original long axis of the oval-shaped first through hole 5110 is compressed excessively to become the actual short axis, and the original short axis is elongated excessively to become the actual long axis, which is shorter than the cross-sectional diameter of the tip 43 of the puncture set 40, so that the tip 43 of the puncture set 40 cannot pass through or disengage the deformed hole. Since the elastic catch 51 is located inside the fixing cover 52, it is difficult for a user to observe the deformation of the elastic catch 51. Thus, in some possible embodiments, referring to fig. 2 and 3, the dismounting assembly 50 further comprises: and a stopper 53.

The limiting member 53 is fixedly connected with one side of the fixing cover 52 close to the elastic buckle 51. The limiting member 53 is disposed in the second through hole 5120. The limiting member 53 is used for limiting at least one of the first deforming structure 511, the second deforming structure 512, the first connecting structure 5131 and the second connecting structure 5132 when the elastic buckle 51 deforms.

In this embodiment, the elastic buckle 51 can be limited by the limiting member 53 disposed on one side of the fixing cover 52, the limiting member 53 is disposed on one side of the fixing cover 52, and the limiting member 53 is clamped into the second through hole 5120 to limit the excessive deformation of the elastic buckle 51, so as to ensure that the tip 43 of the puncturing assembly 40 can pass through the deformation hole.

Optionally, the limiting member 53 is fixedly connected to a side of the puncture seat 10 close to the elastic buckle 51. The limiting member 53 is disposed in the second through hole 5120. The limiting member 53 is used for limiting at least one of the first deforming structure 511, the second deforming structure 512, the first connecting structure 5131 and the second connecting structure 5132 when the elastic buckle 51 deforms.

In this embodiment, the limiting member 53 may be disposed on the side of the puncture base 10 contacting the elastic latch 51, as long as it can be snapped into the second through hole 5120 and limit the elastic latch 51 from being excessively deformed.

Optionally, the limiting member 53 may be one, or a plurality of limiting members may act simultaneously, so that the effect is better.

Alternatively, the limiting member 53 may be a separate body, and may be directly connected to the puncture base 10 or the fixing cover 52 by adhesion or other connection methods.

Optionally, the limiting member 53 includes a first limiting block 531 and a second limiting block 532 connected to each other and forming an included angle therebetween. The first limiting block 531 is used for limiting at least one of the first deforming structure 511 and the second deforming structure 512 when the elastic buckle 51 deforms. The second limiting block 532 is used for limiting at least one of the first connection structure 5131 and the second connection structure 5132 when the elastic buckle 51 deforms.

It can be understood that one or more closed space regions are formed between the outer wall of the first deforming structure 511 (i.e. the side of the first deforming structure 511 close to the second deforming structure 512), the first connecting structure 5131, the second connecting structure 5132 and the inner wall of the second deforming structure 512 (i.e. the side of the second deforming structure 512 close to the first deforming structure 511), and a certain angle is formed between the first connecting structure 5131 and the outer wall of the first deforming structure 511, and when the elastic buckle 51 is subjected to an external force, the angle changes, and the first limiting block 531 and the second limiting block 532, which are connected to each other and form an included angle with each other, can limit the excessive change of the angle, thereby achieving the effect of limiting the excessive deformation of the elastic buckle 51. Similarly, a certain angle is formed between the inner walls of the first connecting structure 5131 and the second deforming structure 512, between the outer walls of the second connecting structure 5132 and the first deforming structure 511, and between the inner walls of the second connecting structure 5132 and the second deforming structure 512, when the elastic buckle 51 is acted by external force, the angle can be changed, the first limiting block 531 and the second limiting block 532 which are connected with each other and form an included angle are used, the excessive change of the angle can be limited, and the effect of limiting the excessive deformation of the elastic buckle 51 is achieved.

By applying the embodiment of the application, the following beneficial effects can be at least realized:

1. the puncture seat 10 and the puncture assembly 40 can be quickly disassembled and assembled, and are suitable for various application scenes.

2. The puncture seat 10 can be reused, and medical cost is saved.

3. The dismounting is simple, the waste of excessive time on the assembling puncture outfit 1 is avoided, and the application efficiency is high.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A puncture instrument, comprising: the puncture assembly comprises a puncture seat, a dismounting assembly and a puncture assembly; the dismounting assembly comprises an elastic buckle connected with the puncture seat;

the elastic buckle is provided with a deformation hole;

the end head of the puncture assembly penetrates through the deformation hole to be in driving connection with the puncture seat;

under the state that the elastic buckle is not acted by external force, the projection of the end head on the plane where the deformation hole is located is overlapped with the deformation hole;

and under the state that the elastic buckle is under the action of external force, the projection of the end head on the plane where the deformation hole is located falls into the deformation hole.

2. The puncture instrument according to claim 1, wherein the elastic catch includes: a first deformation structure, a second deformation structure, and a connection structure connecting the first deformation structure and the second deformation structure;

the first deformation structure is provided with a first through hole, and the first through hole forms the deformation hole;

the second deformation structure is provided with a second through hole;

the projection of the first deformation structure on the plane where the second deformation structure is located in the second through hole.

3. The puncture instrument according to claim 2, wherein the connection structure comprises: the first connecting structure and the second connecting structure are arranged oppositely;

under the state that the elastic buckle is not affected by external force, the deformation hole is in an oval shape, the projections of the first connecting structure and the second connecting structure on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the short axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

4. The puncture instrument of claim 3, wherein the resilient catch further comprises: the fixed cover, and a first handle and a supporting part which are oppositely arranged;

the first handle and the supporting part are respectively connected with the second deformation structure;

the fixing cover is provided with a third through hole corresponding to the deformation hole, an accommodating area is formed on one side, close to the elastic buckle, of the fixing cover and the puncture seat, and the elastic buckle is arranged in the accommodating area;

the periphery of the fixed cover is provided with a first opening; the first handle penetrates through the first opening to extend out of the accommodating area, and one end, far away from the second deformation structure, of the supporting portion is abutted to the inner side wall of the fixing cover.

5. The puncture instrument according to claim 3, wherein the elastic catch further comprises: a first handle and a second handle arranged oppositely;

the first handle and the second handle are respectively connected with the second deformation structure;

under the condition that the elastic buckle is not acted by external force, the projections of the first handle and the second handle on the plane of the deformation hole respectively form a beta included angle with the straight line of the long axis of the deformation hole, and the beta is more than or equal to 0 and less than 45 degrees; or, in the state that the elastic buckle is not acted by external force, the projection of the first handle and the projection of the second handle on the plane of the deformation hole form a beta included angle with the straight line of the short axis of the deformation hole, wherein beta is more than or equal to 0 and less than 45 degrees.

6. The puncture instrument according to claim 2, wherein the connection structure comprises: the first connecting structure and the second connecting structure are arranged oppositely;

under the state that the elastic buckle is not affected by external force, the deformation hole is in an oval shape, the projections of the first connecting structure and the second connecting structure on the plane where the deformation hole is located respectively form an alpha included angle with the straight line where the long axis of the deformation hole is located, and alpha is more than or equal to 0 and less than 45 degrees.

7. The puncture instrument of claim 6, wherein the resilient catch further comprises: a first handle and a second handle arranged oppositely;

8. The puncture instrument according to any one of claims 5 and 7, wherein the detachment assembly further comprises: a fixed cover;

the fixing cover and one side of the puncture seat close to the elastic buckle form an accommodating area, and the elastic buckle is arranged in the accommodating area;

9. The puncture instrument according to claim 8, wherein the periphery of the fixed cover has a first opening and a second opening; the first handle extends through the first opening to extend from within the receiving area, and the second handle extends through the second opening to extend from within the receiving area.

10. The puncture instrument of claim 8, wherein the detachment assembly further comprises: a stopper;

the limiting piece is fixedly connected with one side, close to the elastic buckle, of the fixing cover; the limiting piece is arranged in the second through hole; the limiting part is used for limiting at least one of the first deformation structure, the second deformation structure, the first connection structure and the second connection structure when the elastic buckle deforms;

and/or the limiting piece is fixedly connected with one side, close to the elastic buckle, of the puncture seat; the limiting piece is arranged in the second through hole; the limiting part is used for limiting at least one of the first deformation structure, the second deformation structure, the first connection structure and the second connection structure when the elastic buckle deforms.

11. The puncture outfit of claim 10, wherein the limit piece comprises a first limit piece and a second limit piece which are connected with each other and form an included angle with each other; the first limiting block is used for limiting at least one of the first deformation structure and the second deformation structure when the elastic buckle deforms; the second limiting block is used for limiting at least one of the first connecting structure and the second connecting structure when the elastic buckle deforms.