CN117582371A

CN117582371A - Puncture outfit assembly and injection device

Info

Publication number: CN117582371A
Application number: CN202311803990.8A
Authority: CN
Inventors: 王博森; 王五星; 张红革
Original assignee: Shenzhen Antmed Co ltd
Current assignee: Shenzhen Antmed Co ltd
Priority date: 2023-12-25
Filing date: 2023-12-25
Publication date: 2024-02-23

Abstract

The invention provides a puncture outfit assembly and an injection device, wherein the puncture outfit of the puncture outfit assembly comprises a main body part, a first connecting part and a second connecting part, wherein a puncture head structure is formed at one end of the main body part, and a first channel and a second channel which penetrate through the opposite ends of the main body part and are mutually separated are formed in the main body part; the first connecting part is connected to one end of the main body part, which is far away from the puncture head structure, and a third channel communicated with the first channel is formed in the first connecting part; the second connecting part is bent and connected to one end of the main body part, which is far away from the puncture head structure, and a fourth channel communicated with the second channel is formed in the second connecting part; the first cap body movable cover of the puncture outfit component is arranged at one end of the second connecting part, which is away from the main body part, and is used for covering the second connecting part so as to cover the port of the fourth channel, or is used for separating from the second connecting part so that the second connecting part is externally connected with the injector, and the fourth channel is communicated with the injector. According to the technical scheme, the puncture outfit assembly capable of being applied to pre-injection can be provided.

Description

Puncture outfit assembly and injection device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture outfit assembly and an injection device.

Background

The puncture outfit is mainly applied to be connected with a liquid taking device to suck liquid medicine. In the related art, the puncture outfit comprises a main body part and a connecting part, wherein a liquid flow channel is formed in the main body part, a puncture head is arranged at one end of the main body part, which is away from the connecting part, and the connecting part is used for connecting a needle cylinder. When taking liquid, the puncture head of the puncture outfit can puncture the liquid medicine bottle to suck and convey the liquid medicine in the liquid medicine bottle. However, this type of puncture outfit can only take out the liquid medicine in the liquid medicine bottle by the main body part thereof, and cannot perform the preliminary injection of other liquid medicine, and has a limited application range.

Disclosure of Invention

The invention mainly aims to provide a puncture outfit assembly and an injection device, and aims to provide a puncture outfit assembly which can be applied to pre-injection.

In order to achieve the above object, the present invention provides a puncture outfit assembly, including a puncture outfit and a first cap, the puncture outfit includes:

the puncture device comprises a main body part, a puncture head and a puncture head, wherein the main body part is of a column structure, a first channel and a second channel which penetrate through the two opposite ends of the main body part are formed in the main body part, and the first channel and the second channel are arranged side by side and are mutually separated;

the first connecting part is connected to one end of the main body part, which is far away from the puncture head structure, and is arranged in an extending way along the length direction of the main body part, a third channel penetrating through the opposite ends of the first channel is formed in the first connecting part, and the third channel is communicated with the first channel towards one end of the main body part; and

the second connecting part is bent and connected to one end of the main body part, which is far away from the puncture head structure, a fourth channel penetrating through the opposite ends of the second connecting part is formed in the second connecting part, and one end of the fourth channel, which faces the main body part, is communicated with the second channel;

the first cap body is movably covered at one end of the second connecting part, which is away from the main body part, and is used for covering the second connecting part so as to cover the port of the fourth channel or separating from the second connecting part, so that the second connecting part is externally connected with the injector, and the fourth channel is communicated with the injector.

Optionally, the first cap body includes:

the pipe body part is in plug-in fit with the second connecting part at one end so as to be communicated with the fourth channel, and the other end of the pipe body part is outwards protruded along the direction deviating from the second connecting part and is covered with a filtering membrane; and

the cover body comprises a cover body structure and a surrounding edge structure, the cover body structure is arranged around one end of the pipe body, which is away from the second connecting portion, and the surrounding edge structure is arranged around the circumference of the cover body structure and is arranged around the outer side of the second connecting portion.

Optionally, the tube body comprises:

the first section body extends along the length direction of the second connecting part and is used for being in plug-in fit with the second connecting part; and

the second section body, the second section body is located the first section body deviates from the one end of second connecting portion, the cross-sectional area of second section body is greater than the first section body, filtering membrane locates the second section body is towards the one end of first section body.

Optionally, the inner side wall of the first cap body is provided with an internal thread, the outer side wall of one end of the second connecting portion, which is away from the main body portion, is provided with an external thread, and the second connecting portion is used for being in threaded connection with the first cap body or in threaded connection with an external syringe.

Optionally, the lateral wall of the first cap body is equipped with a plurality of first sand grip, first sand grip is followed the length direction of the first cap body extends and sets up, and a plurality of first sand grip is followed the circumference interval arrangement of the first cap body.

Optionally, the puncture outfit assembly further comprises a second cap body, wherein the second cap body is movably covered on the main body part and is in sealing connection with the main body part, so that a closed space is formed by enclosing one end of the main body part, which is provided with the puncture head structure.

Optionally, the one end that main part deviates from puncture head structure is equipped with the baffle, the baffle is followed the circumference of main part encircles the setting, the open end of second cap body be used for with the baffle butt cooperation.

Optionally, the inside wall of the second cap body is equipped with the second sand grip, the second sand grip is followed the circumference of the second cap body encircles the setting, the second sand grip be used for with the lateral wall butt cooperation of main part.

Optionally, an anti-slip rib is arranged on the outer side wall of one end, facing the main body, of the first connecting portion, and the anti-slip rib is circumferentially arranged along the first connecting portion;

and/or the puncture head structure comprises a first puncture conical surface and a second puncture conical surface, the first puncture conical surface is lower than the second puncture conical surface, one end of the first channel, which faces the puncture head, is penetrated to the first puncture conical surface, and the other end of the second channel, which faces the puncture head, is penetrated to the second puncture conical surface;

and/or, the puncture outfit assembly further comprises a fastener, wherein the fastener is movably connected to one end of the first connecting part, which is away from the main body part, and is circumferentially and circumferentially arranged along the first connecting part, and the fastener is used for externally connecting the syringe so as to enable the third channel to be communicated with the syringe.

The invention also provides an injection device, which comprises the puncture outfit assembly according to any one of the previous claims, wherein the puncture outfit assembly comprises a puncture outfit and a first cap body, and the puncture outfit comprises:

The puncture outfit assembly comprises a puncture outfit and a first cap body, wherein the puncture outfit comprises a main body part, a first connecting part and a second connecting part, a puncture head structure is arranged at one end of the main body part and is used for puncturing a liquid medicine bottle so as to facilitate liquid taking of the liquid medicine bottle, the first connecting part is used for being externally connected with a needle cylinder, and the second connecting part is used for being externally connected with a syringe. Specifically, when the first cap body covers the second connecting part, the needle cylinder connected to the first connecting part can take liquid from the liquid medicine bottle through the communicated first channel and third channel; when the first cap body is separated from the second connecting part and the second connecting part is in butt joint with an external syringe, the syringe can directly pre-inject liquid medicine into the puncture head through the communicated second channel and fourth channel. That is, the puncture outfit assembly of the present invention can realize the liquid taking function of the puncture head in the related art, and can also be adapted to be connected with a syringe for pre-injection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall block diagram of one embodiment of a spike assembly of the present invention;

FIG. 2 is an exploded view of the spike assembly of FIG. 1;

FIG. 3 is a cross-sectional view of the spike assembly of FIG. 1;

fig. 4 is a partial enlarged view at a in fig. 3.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Puncture outfit assembly	131	Fourth channel
10	Puncture outfit	20	First cap body
				11	Main body part	21	Pipe body
111	Puncture head structure	211	First segment body
				111a	First puncture conical surface	212	Second segment body
111b	Second puncture conical surface	22	Cover body
				112	A first channel	221	Cover structure
113	Second channel	222	Surrounding edge structure
				114	Baffle plate	23	Filtering membrane
12	First connecting part	24	First convex strip
				121	Third channel	30	Second cap body
122	Anti-slip rib	31	Second raised strip
				13	Second connecting part	40	Fastening piece

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

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention proposes a puncture outfit assembly 100.

Referring to fig. 1 to 4, in some embodiments of the inventive puncture outfit assembly 100, the puncture outfit assembly 100 includes a puncture outfit 10 and a first cap 20, the puncture outfit 10 includes:

a main body 11, wherein the main body 11 has a cylindrical structure, a puncture head structure 111 is formed at one end of the main body 11, a first channel 112 and a second channel 113 penetrating through opposite ends of the main body 11 are formed in the main body 11, and the first channel 112 and the second channel 113 are arranged side by side and are separated from each other;

a first connection portion 12, wherein the first connection portion 12 is connected to one end of the main body portion 11 facing away from the puncture head structure 111, and extends along the length direction of the main body portion 11, a third channel 121 penetrating opposite ends of the first connection portion 12 is formed in the first connection portion 12, and one end of the third channel 121 facing the main body portion 11 communicates with the first channel 112; and

a second connecting portion 13, wherein the second connecting portion 13 is bent and connected to one end of the main body portion 11 facing away from the puncture head structure 111, a fourth channel 131 penetrating through opposite ends of the second connecting portion 13 is formed in the second connecting portion 13, and one end of the fourth channel 131 facing toward the main body portion 11 is communicated with the second channel 113;

the first cap 20 is movably covered at one end of the second connecting portion 13 away from the main body 11, and is used for covering the second connecting portion 13 to cover the port of the fourth channel 131, or is used for separating from the second connecting portion 13, so that the second connecting portion 13 is externally connected with the syringe, and the fourth channel 131 is communicated with the syringe.

In the present embodiment, the puncture instrument assembly 100 includes a puncture instrument 10, and the puncture instrument 10 includes a main body portion 11, a first connection portion 12, and a second connection portion 13. Wherein, the end of the first connecting part 12 and the end of the main body part 11 are connected to each other so that the first channel 112 and the third channel 121 are communicated with each other, thus, after the puncture head structure 111 of the main body part 11 punctures the liquid medicine bottle, the syringe connected to the first connecting part 12 can suck the liquid medicine from the liquid medicine bottle through the puncture device 10; the second connection portion 13 and the main body portion 11 are connected by bending so that the second channel 113 and the fourth channel 131 communicate with each other. The puncture outfit assembly 100 further comprises a first cap 20, wherein the first cap 20 is movably covered at one end of the second connecting portion 13, which is far away from the main body 11, and is used for covering the second connecting portion 13 to cover the port of the fourth channel 131, or is used for separating from the second connecting portion 13, so that the second connecting portion 13 is externally connected with the syringe, and the fourth channel 131 is communicated with the syringe.

In some embodiments, a filter membrane 23 is provided on the first cap 20 for filtering particles in the air. Thus, when the syringe connected to the first connection part 12 sucks the medical fluid from the puncture head structure 111 into the medical fluid bottle through the puncture device 10, the air flow of the external environment can be transmitted to the puncture head structure 111 through the fourth channel 131 and the second channel 113, so as to balance the air pressure in the medical fluid bottle, so that the syringe can suck the medical fluid through the puncture device 10. In addition, the filtering membrane 23 can filter particles in the air, so that the pollution of the particles in the air to the liquid medicine can be avoided, and the practicability of the puncture outfit 10 is improved.

The puncture outfit 10 is mainly used for being connected with a liquid taking device to suck liquid medicine. In the related art, the puncture outfit 10 includes a main body 11 and a connecting portion, a fluid channel is formed in the main body 11, a puncture head is disposed at one end of the main body 11 facing away from the connecting portion, and the connecting portion is used for connecting with a syringe. When taking liquid, the puncture head of the puncture device 10 can puncture the liquid medicine bottle to suck and convey the liquid medicine in the liquid medicine bottle. However, such a puncture device 10 can only take out the liquid medicine in the liquid medicine bottle by the main body 11 thereof, and cannot perform the preliminary injection of other liquid medicine, and has a limited application range.

Therefore, it can be understood that the puncture outfit assembly 100 according to the technical scheme of the present invention comprises a puncture outfit 10 and a first cap 20, wherein the puncture outfit 10 comprises a main body 11, a first connecting part 12 and a second connecting part 13, wherein one end of the main body 11 is provided with a puncture head structure 111 for puncturing a liquid medicine bottle so as to facilitate liquid taking of the liquid medicine bottle, the first connecting part 12 is used for externally connecting a syringe, and the second connecting part 13 is used for externally connecting a syringe. Specifically, when the first cap 20 is covered on the second connecting portion 13, the syringe connected to the first connecting portion 12 may take the liquid medicine from the puncture head through the first channel 112 and the third channel 121 that are in communication; when the first cap 20 is separated from the second connection part 13 and the second connection part 13 is abutted with an external syringe, the syringe can directly pre-inject the liquid medicine into the puncture head through the second channel 113 and the fourth channel 131 which are communicated. That is, the puncture outfit assembly 100 of the present invention can realize the liquid taking function of the puncture head in the related art, and can also be directly adapted to be connected with a syringe for pre-injection, thereby improving the practicability and the use convenience of the puncture outfit assembly 100.

Referring to fig. 3 and 4, in some embodiments of the inventive spike assembly 100, the first cap 20 comprises:

a pipe body 21, wherein one end of the pipe body 21 is in plug-in fit with the second connecting portion 13 so as to be communicated with the fourth channel 131, and the other end of the pipe body is arranged in an outward protruding manner along a direction away from the second connecting portion 13, and is covered with a filtering membrane 23; and

the cover body 22, the cover body 22 includes a cover body structure 221 and a surrounding edge structure 222, the cover body structure 221 is circumferentially disposed at one end of the pipe body 21 away from the second connecting portion 13, and the surrounding edge structure 222 is circumferentially disposed along the cover body structure 221 and is circumferentially disposed at the outer side of the second connecting portion 13.

In this embodiment, the first cap 20 includes a tube body 21 and a cover 22, where the tube body 21 is in plug-in fit with the second connection portion 13 to communicate with the fourth channel 131, and a filtering membrane 23 is further covered in the inner cavity of the tube body 21, so when external air enters the fourth channel 131 through the inner cavity of the tube body 21, the filtering membrane 23 can effectively filter particles in air to avoid polluting the liquid medicine; the cover body 22 comprises a cover body structure 221 and a surrounding edge structure 222, the cover body structure 221 is arranged at one end of the pipe body 21, which is away from the second connecting portion 13, the surrounding edge structure 222 is arranged along the circumferential direction of the cover body structure 221 and is arranged at the outer side of the second connecting portion 13 in a surrounding manner, and accordingly the inner side wall of the surrounding edge structure 222 and the outer side wall of the pipe body 21 can be respectively connected with the outer side wall and the inner side wall of the second connecting portion 13 in a matching manner, and connection tightness between the first cap body 20 and the second connecting portion 13 is improved.

Referring to fig. 4, in some embodiments of the inventive spike assembly 100, the tube 21 comprises:

the first section body 211 is arranged along the length direction of the second connecting portion 13 in an extending manner, and is used for being in plug-in fit with the second connecting portion 13; and

the second section 212, the second section 212 is disposed at an end of the first section 211 facing away from the second connection portion 13, the cross-sectional area of the second section 212 is larger than that of the first section 211, and the filtering membrane 23 is disposed at an end of the second section 212 facing toward the first section 211.

In this embodiment, the pipe body 21 includes a first segment 211 and a second segment 212 connected in sequence, where the first segment 211 extends along the length direction of the second connecting portion 13 and is configured to be in plug-in fit with the second connecting portion 13, so that an outer sidewall of the first segment 211 abuts against an inner sidewall of the fourth channel 131. The second segment 212 is disposed at one end of the first segment 211 facing away from the second connection portion 13, and the cross-sectional area of the second segment 212 is larger than that of the first segment 211, so that the second segment 212 can be stopped at the end of the second connection portion 13 to control the insertion depth of the pipe 21, and the filtering membrane 23 can be disposed through a naturally formed step surface between the second segment 212 and the first segment 211, so that the peripheral edge of the filtering membrane 23 can be stably abutted on the step surface.

Referring to fig. 3 and 4, in some embodiments of the puncture outfit assembly 100, the inner sidewall of the first cap 20 is provided with an internal thread, the outer sidewall of the end of the second connecting portion 13 facing away from the main body 11 is provided with an external thread, and the second connecting portion 13 is used for being screwed with the first cap 20 or with an external syringe.

In this embodiment, the inner sidewall of the first cap 20 is provided with an internal thread, and the outer sidewall of the end of the second connecting portion 13 facing away from the main body portion 11 is provided with an external thread. So configured, by screwing the male screw and the female screw, the second connection portion 13 can be made to detachably connect with the first cap 20.

The second connecting portion 13 is used to connect to an external syringe, and in the related art, a threaded structure is generally provided at an injection port of the syringe. By providing the outer side wall of the second connecting portion 13 with an external thread, the second connecting portion 13 and the external syringe can be screwed together, so that the connection tightness between the second connecting portion 13 and the external syringe is improved, and the risk that the syringe is separated from the second connecting portion 13 during use is reduced.

Referring to fig. 1 and 2, in some embodiments of the puncture outfit assembly 100, a plurality of first protruding strips 24 are disposed on an outer sidewall of the first cap 20, the first protruding strips 24 are disposed along a length direction of the first cap 20, and the plurality of first protruding strips 24 are arranged at intervals along a circumferential direction of the first cap 20.

In this embodiment, the outer sidewall of the first cap 20 is convexly provided with a plurality of first protruding ribs 24 disposed at intervals, and the plurality of first protruding ribs 24 extend along the length direction of the first cap 20 and are arranged at intervals along the circumferential direction of the first cap 20. In this way, on one hand, the roughness of the outer side wall of the first cap body 20 is increased, and the phenomenon of sliding caused by force application during the installation of the first cap body 20 is avoided, so that the screwing installation of the first cap body 20 is facilitated; on the other hand, the first protruding strip 24 may also function as a reinforcing rib, so as to increase the structural strength of the first cap 20, thereby being beneficial to prolonging the service life of the first cap 20. The specific number and the interval arrangement of the first protruding strips 24 can be set according to the actual requirement, which is not limited herein.

Referring to fig. 1 to 3, in some embodiments of the puncture outfit assembly 100, the puncture outfit assembly 100 further includes a second cap 30, wherein the second cap 30 is movably covered on the main body 11 and is connected with the main body 11 in a sealing manner, so as to form a closed space at one end of the main body 11 provided with the puncture head structure 111.

In this embodiment, the puncture outfit assembly 100 further includes a second cap 30 movably covered on the main body 11, the second cap 30 is connected with the main body 11 in a sealing manner, so that a sealed space is formed by enclosing one end of the main body 11 provided with the puncture head structure 111, and the first channel 112 and the second channel 113 are mutually communicated through the sealed space. Thus, when the puncture outfit 10 performs the pre-injection, the liquid medicine in the injector connected to the second connecting portion 13 can be sequentially transferred into the closed space through the fourth channel 131 and the second channel 113 which are communicated, and then further sequentially enters the external syringe through the first channel 112 and the third channel 121 which are communicated, so as to realize the pre-injection function of the liquid medicine.

Referring to fig. 1 to 3, in some embodiments of the puncture outfit assembly 100, a baffle 114 is disposed at an end of the main body 11 facing away from the puncture head structure 111, the baffle 114 is circumferentially disposed around the main body 11, and an open end of the second cap 30 is configured to be in abutting engagement with the baffle 114.

In this embodiment, the peripheral side of the puncture outfit 10 is further provided with a baffle 114, the baffle 114 is disposed at one end of the main body 11 facing away from the puncture head structure 111, and the baffle 114 may be, but is not limited to, integrally formed with the main body 11. In this way, in the process that the main body 11 pierces the liquid medicine bottle through the piercing head structure 111, the baffle 114 can be abutted against the bottle stopper of the liquid medicine bottle to limit the insertion depth of the main body 11, so that the tightness after the piercing of the main body 11 and the operability of pulling out can be considered, namely, the risk that the piercing head structure 111 leaks liquid medicine from the piercing head structure 111 due to too shallow insertion is avoided, and the problem that the piercing head structure 111 is difficult to pull out due to too deep insertion is avoided.

Further, the open end of the second cap 30 is adapted to be in abutting engagement with the baffle 114, so that the peripheral edge of the open end of the second cap 30 can be covered by the baffle 114 to improve the fitting tightness between the second cap 30 and the main body 11 by the tight engagement of the second cap 30 and the baffle 114.

Referring to fig. 2, in some embodiments of the puncture outfit assembly 100, the second cap 30 has a second protrusion 31 on an inner side wall thereof, the second protrusion 31 is circumferentially disposed along the second cap 30, and the second protrusion 31 is configured to be in abutting engagement with an outer side wall of the main body 11.

In this embodiment, the second protruding strip 31 is protruding from the inner sidewall of the second cap 30, and the second protruding strip 31 is circumferentially disposed along the second cap 30. In this way, on the one hand, the second protruding strips 31 are used for abutting and matching with the outer side wall of the main body 11, so that the tight matching between the second cap body 30 and the main body 11 is facilitated, and the air tightness of the second cap body 30 is improved; on the other hand, the second protruding strip 31 may also function as a reinforcing rib, so as to increase the structural strength of the second cap 30, thereby being beneficial to prolonging the service life of the second cap 30.

In some embodiments, the second protruding strips 31 may be provided in plurality, and the plurality of second protruding strips 31 are arranged at intervals along the axial direction of the second cap 30, so that multiple sealing can be achieved, which is beneficial to further enhancing the connection tightness between the second cap 30 and the main body 11. The specific number and the interval arrangement of the second protruding strips 31 can be set according to the actual requirement, which is not limited herein.

Referring to fig. 1 and 2, in some embodiments of the puncture outfit assembly 100, an outer sidewall of the first connecting portion 12 facing one end of the main body 11 is provided with anti-slip ribs 122, and the anti-slip ribs 122 are circumferentially disposed along the first connecting portion 12.

In this embodiment, in order to reduce the risk of slipping when the user holds the puncture outfit 10, the anti-slip ribs 122 are provided around the central position where the user holds the puncture outfit 10, i.e. the outer side wall of the end of the first connecting portion 12 facing the main body portion 11, and the anti-slip ribs 122 may be, but are not limited to, integrally formed with the first connecting portion 12. By arranging the anti-slip ribs 122, on one hand, the friction force of the fingers of a user when the fingers are held by the anti-slip ribs 122 can be increased, so that slipping is avoided, and the safety risk during puncturing is reduced. On the other hand, the anti-slip ribs 122 can also play a role of reinforcing ribs, and can increase the structural strength of the puncture outfit 10, thereby being beneficial to prolonging the service life of the puncture outfit 10.

Further, in some embodiments, the plurality of anti-slip ribs 122 are provided, and the plurality of anti-slip ribs 122 are uniformly arranged on the outer sidewall of the first connecting portion 12 at intervals, so that the arrangement is beneficial to enabling the puncture outfit 10 to have a better anti-slip effect. The specific number and the interval arrangement manner of the anti-slip ribs 122 can be set according to the actual requirement, which is not limited herein.

Referring to fig. 3, in some embodiments of the puncture outfit assembly 100, the puncture head structure 111 includes a first puncture tapered surface 111a and a second puncture tapered surface 111b, the first puncture tapered surface 111a is lower than the second puncture tapered surface 111b, the first channel 112 is disposed toward one end of the puncture head and penetrates to the first puncture tapered surface 111a, and the second channel 113 is disposed toward one end of the puncture head and penetrates to the second puncture tapered surface 111 b.

In this embodiment, the puncture head structure 111 includes a first puncture conical surface 111a and a second puncture conical surface 111b, and the conical surface structures of the two may play a role in guiding assistance in the puncture process of the puncture head structure 111, so that the puncture head structure 111 punctures a medical liquid bottle, thereby being beneficial to improving the convenience in use of the puncture device 10.

In the process of sucking the medical fluid in the medical fluid bottle by the puncture device 10, the medical fluid in the bottle may be sucked by inverting the medical fluid bottle. Because the first puncture conical surface 111a is lower than the second puncture conical surface 111b, when the port of the first channel 112 penetrating the first puncture conical surface 111a is immersed by the liquid medicine, the port of the second channel 113 penetrating the second puncture conical surface 111b is not immersed by the liquid medicine, and at this time, the air flow of the external environment can be communicated into the liquid medicine bottle through the communicated second channel 113 and fourth channel 131, so as to maintain air pressure balance, facilitate the absorption of the liquid medicine, and be beneficial to avoiding the liquid medicine from flowing into the second channel 113.

Referring to fig. 1 to 3, in some embodiments of the puncture outfit assembly 100, the puncture outfit assembly 100 further includes a fastener 40, the fastener 40 is movably connected to an end of the first connecting portion 12 facing away from the main body 11 and is circumferentially disposed around the first connecting portion 12, and the fastener 40 is used for circumscribing a syringe so as to communicate the third channel 121 with the syringe.

In this embodiment, the fastener 40 is movably connected to the first connecting portion 12, and may be, but is not limited to, threaded with the first connecting portion 12. By providing the fastener 40 at the end of the first connecting portion 12, an external syringe may be sleeved with the fastener 40 to facilitate the abutting communication of the injection port of the syringe with the third passageway 121 in the first connecting portion 12. In this way, the cartridge may suck the medical fluid through the puncture instrument 10 through the third passage 121 communicating therewith to suck and store the medical fluid in the cartridge. By providing the fastener 40, the impact of the high-pressure medical fluid on the connection portion between the first connecting portion 12 and the cylinder can be avoided, which is advantageous in improving the connection stability between the first connecting portion 12 and the cylinder.

In some embodiments, the outer side wall of the fastener 40 is convexly provided with a plurality of spaced ribs, and the plurality of ribs are all arranged along the length direction of the fastener 40 in an extending manner and are arranged at intervals along the circumferential direction of the fastener 40. Thus, on one hand, the roughness of the outer side wall of the fastener 40 is increased, and the phenomenon of sliding caused by force application during the installation of the fastener 40 is avoided, so that the fastening and the installation of the fastener 40 are facilitated; on the other hand, the raised strips can also play a role of reinforcing ribs, so that the structural strength of the fastener 40 can be increased, and the service life of the fastener 40 can be prolonged. The specific number and the interval arrangement mode of the raised strips can be set according to actual requirements, and are not limited herein.

The invention also provides an injection device, which comprises the puncture outfit assembly 100 in any of the previous embodiments, wherein the specific structure of the puncture outfit assembly 100 refers to any of the previous embodiments. The injection device provided by the application can be applied to all the technical schemes in all the embodiments, so that the injection device at least has all the beneficial effects brought by the technical schemes, and the description is omitted herein.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A puncture outfit assembly comprising a puncture outfit and a first cap, the puncture outfit comprising:

2. The penetrator assembly of claim 1, wherein the first cap comprises:

3. The penetrator assembly of claim 2, wherein the tube portion includes:

4. A spike assembly according to any one of claims 1 to 3 wherein the inner side wall of the first cap is provided with internal threads and the outer side wall of the end of the second connecting portion facing away from the main body portion is provided with external threads, the second connecting portion being adapted for threaded connection with the first cap or with an external syringe.

5. The puncture outfit assembly according to claim 4, wherein the outer side wall of the first cap body is provided with a plurality of first raised strips, the first raised strips are arranged in an extending manner along the length direction of the first cap body, and the plurality of first raised strips are arranged at intervals along the circumferential direction of the first cap body.

6. The puncture outfit assembly according to any one of claims 1 to 3, further comprising a second cap movably cover arranged on the main body part and connected with the main body part in a sealing way so as to form a closed space at one end of the main body part provided with the puncture head structure.

7. The puncture outfit assembly as recited in claim 6, wherein a baffle is disposed at an end of the main body facing away from the puncture head structure, the baffle being circumferentially disposed about the main body, and the open end of the second cap being adapted for abutting engagement with the baffle.

8. The puncture outfit assembly as recited in claim 6, wherein the inner side wall of the second cap body is provided with a second raised strip, the second raised strip is circumferentially arranged along the second cap body, and the second raised strip is used for being in abutting fit with the outer side wall of the main body.

9. A puncture device assembly as set forth in any of claims 1 to 3, wherein an outer sidewall of the first connecting portion facing one end of the main body portion is provided with an anti-slip rib circumferentially disposed along the first connecting portion;

10. An injection device comprising a spike assembly according to any one of claims 1 to 9.