CN110448460A - Puncture outfit and injection device - Google Patents

Abstract

The invention discloses a puncture device and an injection device. Wherein, the puncture device includes: a main body, a liquid flow channel is formed in the main body; a puncture head, the puncture head is connected to one end of the main body, and the puncture head is provided with a first port communicating with the liquid flow channel. A liquid outlet; and a connecting head, the connecting head is connected to the end of the main body away from the puncture head, the connecting head and the main body are integrally structured, and the connecting head is provided with the The second liquid outlet of the channel, the liquid collector is connected to the connecting head. The piercer of the present invention can simplify the steps of piercing and taking liquid, and improve the efficiency of taking liquid.

Description

Trocars and Injection Devices

technical field

The invention relates to the technical field of medical equipment, in particular to a puncture device and an injection device using the puncture device.

Background technique

In the current puncture devices, for example, the puncture device used to puncture contrast medium bottles or other liquid medicine bottles, when cooperating with a high-pressure syringe syringe or an infusion tube to draw contrast medium or other liquid medicines, it is usually necessary to first connect the puncture device with a After the connecting head is connected, the connecting head is used to connect with the high-pressure syringe barrel or the infusion tube, so as to absorb and transport the contrast medium or the medicinal solution. However, in this mode of operation, additional connectors are used for connection, which makes the operation steps of puncturing and taking liquid complicated and inefficient.

The above content is only used to assist in understanding the technical solution of the present application, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to provide a puncture device, aiming at simplifying the steps of puncturing and taking liquid, and improving the efficiency of taking liquid.

In order to achieve the above object, the puncture device proposed by the present invention is connected to the liquid taker, and the puncture device includes:

a main body, a liquid flow channel is formed in the main body;

a puncture head, the puncture head is connected to one end of the main body, and the puncture head is provided with a first liquid outlet that communicates with the liquid flow channel; and

A connecting head, the connecting head is connected to the end of the main body away from the puncture head, the connecting head is integrally structured with the main body, and the connecting head is provided with a second pass through which the liquid flow channel is connected. a liquid port, and the liquid collector is connected to the connecting head.

Optionally, the connector is a 6% Luer connector.

Optionally, an anti-skid rib is provided around the outer side of the main body, and the anti-skid rib is located on a side of the main body adjacent to the connecting head.

Optionally, the piercer further includes a stopper, which is sleeved on the outside of the main body and arranged adjacent to the anti-slip rib.

Optionally, an airflow channel is formed inside the main body, the puncture part is provided with an air outlet communicating with the airflow channel, and the outer wall of the main body is provided with an air inlet communicating with the airflow channel, so that Air enters through the air inlet and exits through the air outlet.

Optionally, the puncture head includes a first puncture cone surface and a second puncture cone surface, the distance between the first puncture cone surface and the main body is greater than the distance between the second puncture cone surface and the main body portion The air outlet is provided on the first piercing cone surface, and the first liquid outlet is provided on the second piercing cone surface.

Optionally, a waterproof and breathable membrane is provided at a position adjacent to the air inlet of the airflow channel.

The present invention also proposes an injection device, comprising a puncture device and a liquid extractor connected to the puncture device, the puncture device comprising:

a main body, a liquid flow channel is formed in the main body;

a puncture head, the puncture head is connected to one end of the main body, and the puncture head is provided with a first liquid outlet that communicates with the liquid flow channel; and

A connecting head, the connecting head is connected to the end of the main body away from the puncture head, the connecting head is integrally structured with the main body, and the connecting head is provided with a second pass through which the liquid flow channel is connected. a liquid port, and the liquid collector is connected to the connecting head.

Optionally, the liquid extractor includes a syringe and a fastener sleeved on one end of the syringe, the syringe has an injection port, and the connector is detachably clamped to the fastener, And the second liquid outlet is connected to the injection port.

Optionally, a plurality of protruding strips arranged at intervals protrude from the periphery of the fastener, and the plurality of convex strips extend along the length direction of the fastener.

The puncture device of the technical solution of the present invention is mainly used to be connected with a liquid extractor to absorb medicinal liquid. A liquid flow channel is formed in the main body of the puncture device, and the puncture head is connected to one end of the main body, and the first liquid outlet of the puncture head is communicated with the liquid flow channel. When taking the liquid, the puncture head can be punctured into the liquid medicine bottle to take the liquid, avoiding removing the stopper of the medicine bottle to take the liquid, thereby reducing the risk of the liquid medicine being contaminated. And by connecting the connecting head to the end of the main body away from the puncture head, the second liquid outlet of the connecting head is communicated with the liquid flow channel, so that the liquid collector can be directly connected to the connecting head, and pass through the first liquid outlet, The liquid flow channel and the second liquid passage port are used for liquid extraction, and there is no need to use other additional connectors to connect the puncture device with the liquid extraction device, thereby simplifying the steps of connecting the puncture device for liquid extraction and greatly improving the efficiency of liquid extraction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic exploded view of a part of the structure of the piercer connected to the liquid taker of the present invention;

Fig. 2 is a schematic diagram of the explosive structure of the piercer connection fastener of the present invention;

Fig. 3 is a perspective view of the piercer connection fastener of the present invention;

Fig. 4 is a half-sectional structural schematic diagram of the piercer connecting fastener of the present invention.

label name label name 100 Main body 110 Liquid flow channel 120 Anti-slip ribs 130 stop plate 140 air channel 150 Boss 151 air intake 160 waterproof breathable membrane 200 piercing head 210 first piercing cone 211 air outlet 220 second piercing cone 221 first liquid outlet 300 Connector 310 The second liquid outlet 400 fastener 500 syringe 510 injection port 410 Convex

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B as an example", including scheme A, scheme B, or schemes satisfying both A and B. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

Please refer to FIG. 1 to FIG. 4 , the present invention proposes a piercer connected to a liquid extractor. Wherein, the liquid extractor may be a high-pressure syringe or an infusion tube for liquid extraction and delivery.

In an embodiment of the present invention, the trocar includes:

a main body 100, a liquid flow channel 110 is formed in the main body 100;

A puncture head 200, the puncture head 200 is connected to one end of the main body 100, the puncture head 200 is provided with a first liquid outlet 221 communicating with the liquid flow channel 110; and

A connecting head 300, the connecting head 300 is connected to the end of the main body 100 away from the puncture head 200, the connecting head 300 is provided with a second liquid outlet 310 communicating with the liquid flow channel 110, the taking The liquid container is connected to the connection head 300 .

In this embodiment, the material of the main body 100 can be a terpolymer (ABS) of three monomers of acrylonitrile, butadiene and styrene, which has good molding processability, and can be formed by injection, extrusion, thermoforming, etc. The shape of the main body 100 can be designed into various shapes, such as cylinder, ellipse, square cylinder or other reasonable and effective shapes. The material of puncture head 200 can be polycarbonate or stainless steel, and its source is easy to get, and cost is lower, can reduce production cost; 200 can be firmly connected with the main body 100 . In practical application, the puncture head 200 is mainly used to puncture the bottle stopper of the liquid medicine bottle, so that the liquid medicine can be sucked directly through the first liquid outlet 221 of the puncture head 200 without opening the bottle stopper, effectively It avoids the contamination of the liquid medicine in the liquid medicine bottle, and the operation is simple and convenient.

The connection head 300 is connected to the main body 100, and is mainly used to cooperate with the liquid taker, so that the liquid taker does not need to use additional connectors when it is connected to the puncturer, but can be connected to the connection head 300 for taking liquid or Liquid delivery. In this application, the material of the connector 300 can be polypropylene (PP), polyethylene (PE) and terpolymer (ABS) of three monomers of acrylonitrile, butadiene, and styrene, etc., and these materials come from Easy to obtain, low material cost, can save production material cost. Specifically, the second liquid outlet 310 can be provided at the end of the connecting head 300 away from the main body 100, so that when the puncture head 200, the main body 100 and the connecting head 300 are sequentially connected, the liquid flow channels 110 can respectively pass through the puncture The head 200 and the connecting head 300 communicate with the first liquid outlet 221 and the second liquid outlet 310 .

In an embodiment of the present application, the connecting head 300 and the main body 100 are integrally structured. By setting the connecting head 300 and the main body 100 into an integrated structure, on the one hand, it can ensure that the connection between the connecting head 300 and the main body 100 is stable and reliable. During the process of transporting and absorbing the medicinal liquid, there will be no leakage of the medicinal liquid, and the sealing performance is improved. On the other hand, the integral processing and molding is also convenient for the quantitative production of the trocar, which can greatly improve the efficiency of production and processing.

Of course, in other embodiments, the connector 300 and the main body 100 can also be a separate structure but fixedly connected as one. It can also ensure that the connection head 300 is firmly connected to the main body 100 .

Therefore, in the technical solution of the present invention, by connecting the puncture head 200 to one end of the main body 100, and communicating the first liquid outlet 221 of the puncture head 200 with the liquid flow channel 110, when taking liquid, the puncture head 200 can be Puncture the liquid medicine bottle to take the liquid, avoid removing the stopper of the medicine bottle to take the liquid, thereby reducing the risk of the liquid medicine being contaminated. By connecting the connecting head 300 to the end of the main body 100 away from the puncture head 200, the second liquid outlet 310 of the connecting head 300 communicates with the liquid flow channel 110, so that the liquid collector can be directly connected to the connecting head 300, and The liquid is taken through the first liquid outlet 221, the liquid flow channel 110, and the second liquid outlet 310, without using other additional connectors to connect the piercer with the liquid collector, thereby simplifying the steps of connecting the piercer to take liquid, The efficiency of liquid extraction is greatly improved.

In an embodiment of the piercer of the present application, the connector 300 is a 6% Luer connector. The 6% Luer connector is a medical and laboratory standard connector, which can be matched with most infusion devices (such as infusion tubes, syringes 500, etc.), and the Luer connector can be switched without inserting or pulling out the patient's infusion needle 4 infusion bags. The connector also allows multiple compatible fluids to be administered through the same tubing, reducing trauma to the patient. Therefore, designing the connector 300 as a 6% Luer connector can greatly enhance the versatility of the trocar, have a wider application range, and meet the needs of users.

In actual situations, when the user uses the piercer to puncture the stopper of the liquid medicine bottle, he usually holds the main body 100 with his fingers to puncture the piercing head 200 into the liquid medicine bottle. In the present application, in order to prevent the user from slipping when holding the main body 100 , an anti-slip rib 120 is arranged around the outside of the main body 100 . The anti-slip rib 120 is located on the main body 100 adjacent to the connection One side of the head 300. Specifically, the anti-slip ribs 120 and the main body 100 can be integrated. Preferably, there are multiple anti-slip ribs 120, and the plurality of anti-slip ribs 120 are evenly spaced outside the main body 100. The strip 120 can increase the frictional force when the user's fingers hold the anti-slip rib 120, so as to avoid slipping and reduce the safety risk during puncturing.

Further, the trocar described in the present application further includes a stopper 130 , which is sleeved on the outside of the main body 100 and arranged adjacent to the anti-slip rib 120 . Wherein, the material of the stop plate 130 can be a terpolymer (ABS) of three monomers of acrylonitrile, butadiene and styrene, which has good molding processability and can be formed by injection, extrusion, thermoforming and other methods. , and easy to clean, stable size, easy to manufacture and process. The stop plate 130 can be integrated with the main body 100 , thereby facilitating the manufacturing of the stop plate 130 and the main body 100 , and greatly improving production efficiency. Usually, when the piercing head 200 punctures the liquid medicine bottle, the stop plate 130 can abut against the bottle stopper, thereby preventing the piercing head 200 from continuing to puncture into the liquid medicine bottle, thereby limiting the insertion depth of the piercing head 200, and avoiding the During the process, the puncture head 200 is inserted too shallowly, so that the medicinal liquid leaks out from the puncture head 200, or the puncture head 200 is prevented from being inserted too deep and it is difficult to extract it. The insertion depth should be adjusted to take into account the tightness after puncture and the operability of extraction.

Furthermore, in an embodiment of the present application, an airflow channel 140 is formed inside the main body part 100, the puncture part is provided with an air outlet 211 communicating with the airflow channel 140, and the outer wall of the main body part 100 is provided with The air inlet 151 communicated with the airflow passage 140 allows air to enter through the air inlet 151 and be discharged through the air outlet 211 . Usually, when the puncture head 200 is punctured into the liquid medicine bottle, in the process of drawing the liquid medicine, the air pressure in the liquid medicine bottle is reduced after part of the liquid medicine is sucked, so when drawing the liquid medicine, for example, use a pump When the liquid syringe 500 is extracted, it is difficult to pull the piston rod to extract the liquid medicine, and the operation is very laborious. And by arranging the air flow channel 140, so that in the process of extracting the liquid medicine, the air flow can enter the liquid medicine bottle through the air inlet 151 and the air outlet 211, so that the air pressure inside and outside the liquid medicine bottle is kept relatively balanced. , the piston rod can be pulled conveniently and easily, and the operation is relatively labor-saving.

Specifically, the outer side of the main body 100 of the present application is protrudingly provided with a boss 150, and the air inlet 151 is opened on the end surface of the boss 150 away from the end of the main body 100, so that the airflow channel 140 is formed as a The channel is bent so as to facilitate the installation of the liquid blocking valve to prevent the liquid medicine from flowing out from the air flow channel 140 , so as to ensure that the liquid medicine will not flow out from the air flow channel 140 .

In one embodiment, the airflow channel 140 is provided with a waterproof and breathable film 160 adjacent to the air inlet 151 . The waterproof and gas-permeable membrane 160 allows airflow to pass through but prevents liquid from passing through, thereby preventing the liquid medicine from flowing out through the airflow channel 140 . The waterproof and breathable membrane 160 is mainly composed of three layers: PP spunbonded nonwoven fabric, PE polymer breathable membrane and PP spunbonded nonwoven fabric. The function of spunbonded non-woven fabric is mainly to enhance the tensile force and hydrostatic pressure and protect the middle layer (breathable film). The real breathability mainly depends on the middle layer PE polymer breathable film. Because in the state of water vapor, the water particles are very small, according to the principle of capillary movement, they can smoothly penetrate into the capillary to the other side, so that the phenomenon of vapor transmission occurs. When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the water molecules "pull and compete" with each other), the water molecules cannot smoothly break away from the water droplets and penetrate to the other side, which prevents The penetration of water occurs, so that the vapor permeable membrane has the function of waterproofing.

In an embodiment of the present application, the puncture head 200 includes a first puncture cone surface 210 and a second puncture cone surface 220 , the distance between the first puncture cone surface 210 and the main body 100 is greater than that of the first puncture cone surface 210 . The distance between the two piercing cones 220 and the main body 100, the air outlet 211 is set on the first piercing cone 210, and the first liquid outlet 221 is set on the second piercing cone 220 . In this embodiment, by setting the first puncture cone 210 and the second puncture cone 220 , the puncture head 200 has the function of guiding and assisting during the puncture, making the puncture head 200 more convenient during the puncture.

Usually, in the process of sucking the liquid medicine, the user inhales the liquid medicine bottle upside down, and since the distance between the first conical piercing surface 210 and the main body 100 is greater than that between the second conical piercing surface 220 and the main body 100, so when the puncture head 200 is inserted into the liquid medicine bottle, the height of the first puncture cone 210 will be higher than the height of the second puncture cone 220, that is, the height of the air outlet 211 is higher than that of the first liquid outlet. The height of the opening 221, so that the air outlet 211 is not immersed in the liquid medicine, and the first liquid inlet 221 is immersed in the liquid medicine, so as to ensure that the liquid medicine is normally absorbed, and the airflow can enter the liquid medicine bottle to maintain air pressure balance, effectively Prevent the medicinal liquid from flowing out from the airflow channel 140 .

The present invention also proposes an injection device, which includes a liquid taker and a puncturer connected to the liquid taker. For the specific structure of the puncturer, refer to the above-mentioned embodiments, since this injection device adopts all the technical solutions of all the above-mentioned embodiments , so at least it has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.

Wherein, the injection device may be a high-pressure contrast injection device, and high-pressure contrast is usually used when ordinary contrast surgery cannot produce sufficiently clear or accurate images. To further improve contrast quality, medical staff inject a contrast agent into the patient, which enhances the visibility and clarity of the image. Usually, when injecting a contrast agent, the puncture head 200 is first punctured and inserted into the contrast agent bottle to absorb the contrast agent, the contrast agent is stored in the syringe 500 through the first liquid outlet 221 and the second liquid outlet 310, and then the puncture head 200 is taken out, and the puncture head 200 is reconnected to the indwelling connection end of the patient, so as to inject the contrast medium into the patient through the second liquid outlet 310 and the first liquid outlet 221 by pushing the syringe 500 .

In an embodiment of the present application, the liquid remover includes a syringe 500 and a fastener 400 sleeved on one end of the syringe 500, the syringe 500 has an injection port 510, and the connector 300 is detachable The second liquid outlet 310 is connected to the injection port 510 .

The syringe 500 can be in a circular structure, which is convenient for manufacturing and processing, and also improves the aesthetics of the appearance of the syringe 500 . Certainly, in other embodiments, the syringe 500 may also have other shapes. In order to improve the service life of the syringe 500, the syringe 500 is made of polypropylene material. It can be understood that the polypropylene material has good mechanical properties and rigidity, and also has the advantage of corrosion resistance, so that the syringe 500 can be durable.

The fastener 400 can also be of a circular structure, so as to facilitate production, processing and manufacturing. When the syringe 500 transports ultra-high pressure liquid, the liquid medicine (such as contrast agent) is directly transported from the injection port 510 to the second stage of the connecting head 300. liquid port 310, and by setting the fastener 400, the impact of the high-pressure liquid on the joint between the connector 300 and the syringe 500 can be avoided, so that the second liquid outlet 310 of the connector 300 and the injection port of the syringe 500 The 510 is always stably abutted, which improves the stability of the installation of the connector 300 .

In one embodiment, the periphery of the fastener 400 is protruded with a plurality of protruding strips 410 arranged at intervals, and the plurality of convex strips 410 are extended along the length direction of the fastener 400 .

The arrangement of multiple convex lines 410, on the one hand, increases the roughness of the surface of the fastener 400, avoiding the phenomenon of sliding due to force applied when the fastener 400 is installed, thereby facilitating the tightening installation of the fastener 400; On the one hand, the protruding strip 410 can act as a reinforcing rib, which can increase the structural strength of the fastener 400, and can protect the fastener 400 when high-pressure liquid is injected, thereby prolonging the service life of the fastener 400 . Specifically, the number of convex lines 410 in this application may be three groups, six groups, ten groups, etc., or any value in the above range or more groups, which is not specifically limited in this design.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A piercer connected to a liquid extractor, characterized in that it comprises: a main body, a liquid flow channel is formed in the main body; a puncture head, the puncture head is connected to one end of the main body, and the puncture head is provided with a first liquid outlet that communicates with the liquid flow channel; and A connecting head, the connecting head is connected to the end of the main body away from the puncture head, the connecting head is integrally structured with the main body, and the connecting head is provided with a second pass through which the liquid flow channel is connected. a liquid port, and the liquid collector is connected to the connecting head. 2. The trocar according to claim 1, wherein the connector is a 6% Luer connector. 3 . The trocar according to claim 1 , wherein an anti-slip rib is arranged around the outer side of the main body, and the anti-slip rib is located on a side of the main body adjacent to the connecting head. 4 . 4. The trocar according to claim 3, characterized in that, the trocar further comprises a baffle, the baffle is sleeved on the outside of the main body, and is located at a position where the anti-slip rib is away from the Set on one side of the connector. 5. The puncture device according to any one of claims 1 to 4, wherein an airflow passage is formed inside the main body, the puncture part is provided with an air outlet communicating with the airflow passage, and the main body The outer wall of the air inlet is provided with an air inlet connected to the air passage, so that air enters through the air inlet and is discharged through the air outlet. 6. The piercer according to claim 5, wherein the piercing head comprises a first piercing cone and a second piercing cone, and the distance between the first piercing cone and the main body is greater than The distance between the second piercing cone surface and the main body is that the air outlet is provided on the first piercing cone surface, and the first liquid outlet is provided on the second piercing cone surface. 7 . The trocar according to claim 5 , wherein a waterproof and breathable membrane is provided at a position of the airflow channel adjacent to the air inlet. 8 . 8. An injection device, characterized by comprising a piercer and a liquid extractor connected to the piercer, the piercer being the piercer described in any one of claims 1-7. 9. The injection device according to claim 8, wherein the liquid extractor comprises a syringe and a fastener sleeved on one end of the syringe, the syringe has an injection port, and the connecting head It is detachably fastened to the fastener, and the second liquid outlet is communicated with the injection port. 10. The injection device according to claim 9, characterized in that, the periphery of the fastener is protruded with a plurality of convex strips arranged at intervals, and the plurality of convex strips extend along the length direction of the fastener set up.