Contrast agent puncture outfit

Abstract

The contrast agent puncture outfit comprises a puncture outfit body, the puncture outfit body is provided with a gas channel, a liquid medicine channel, a gas inlet, a gas outlet, a liquid inlet and a liquid outlet, the gas channel and the liquid medicine channel extend in the first axis direction, and the gas channel and the liquid medicine channel are arranged side by side and separated; the gas channel is communicated with the gas inlet and the gas outlet, the liquid medicine channel is communicated with the liquid inlet and the liquid outlet, the puncture outfit body is provided with a needle tip, the needle tip is provided with a first diagonal plane and a second diagonal plane which are arranged back to back, the first diagonal plane defines at least part of the liquid inlet, and the second diagonal plane defines at least part of the liquid outlet. At least part of the air outlet is defined by the second diagonal plane; in addition, on the plane perpendicular to the direction of the first axis, the orthographic projection of the first diagonal plane is in an arc shape. By arranging the arc-shaped needle tip, the puncture strength of the needle tip can be ensured, and the needle tip is not prone to bending deformation during puncture.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to a puncture device. BACKGROUND

[0002] The utility model discloses a puncture device, which comprises a puncture device body, a dustproof cap and a self-sealing rubber pad. The puncture device body has a sharp part capable of piercing a plug of a liquid medicine container. However, the sharp part of the puncture device may be bent and deformed during the piercing process. Therefore, it is necessary to provide a new puncture device. SUMMARY

[0003] The utility model provides a new contrast medium puncture device.

[0004] The utility model provides a contrast medium puncture device, which comprises a puncture device body, a gas channel, a liquid channel, an air inlet, an air outlet, a liquid inlet and a liquid outlet. The gas channel and the liquid channel extend along a first axis direction. The gas channel and the liquid channel are arranged side by side and separated. The gas channel is connected to the air inlet and the air outlet. The liquid channel is connected to the liquid inlet and the liquid outlet. The puncture device body has a needle tip, which comprises a first bevel and a second bevel arranged oppositely. The first bevel is inclined relative to the first axis direction. The first bevel defines at least part of the liquid inlet. The second bevel defines at least part of the air outlet. In a first plane perpendicular to the first axis direction, the orthographic projection of the first bevel is arc-shaped.

[0005] In some embodiments, in a second plane parallel to the first axis direction, the orthographic projection of the first bevel is an acute angle.

[0006] In some embodiments, the inner diameter of the liquid channel is larger than that of the gas channel.

[0007] In some embodiments, the puncture device body further comprises a needle shaft connected to the needle tip. The needle shaft has a vertical bevel, which is connected to the first bevel. The vertical bevel defines a part of the liquid inlet. The first bevel defines another part of the liquid inlet.

[0008] In some embodiments, the vertical bevel comprises a first vertical bevel, a connecting surface and a second vertical bevel. In the first axis direction, the first bevel, the first vertical bevel, the connecting surface and the second vertical bevel are connected in sequence.

[0009] In some embodiments, the inner wall of the puncture device body is provided with two reinforcing ribs arranged oppositely, the reinforcing ribs extend along the first axis direction, and the liquid channel is located between the two reinforcing ribs.

[0010] In some embodiments, the contrast puncture device further comprises a dustproof cap arranged at the air inlet.

[0011] In some embodiments, the gas channel and the liquid channel are circular or square.

[0012] In some embodiments, the bottom of the puncture device body is further provided with a tube sticking hole, and the tube sticking hole is in communication with the liquid outlet.

[0013] In some embodiments, the arc shape is concave to one side of the gas channel.

[0014] The utility model discloses the beneficial effect is, through setting up the needle tip of arc shape, can ensure the puncture intensity of needle tip, when puncturing, needle tip is not easy to bend deformation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional structure schematic diagram of the contrast puncture device of this embodiment;

[0016] Fig. 2 It is the overhead schematic diagram of the contrast puncture device of this embodiment;

[0017] Fig. 3 It is the section view schematic diagram of the needle tip of the contrast puncture device of this embodiment. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directionality indications also change accordingly.

[0020] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0021] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0023] For example, Figs. 1 to 3As shown, the contrast medium puncture device 100 of the present embodiment includes a puncture device body 1 having a certain length in the first axis direction X, which has a drug liquid channel 12, a gas channel 13, a liquid inlet 14, a liquid outlet, a gas inlet, and a gas outlet 15. The drug liquid channel 12 can allow drug liquid to enter the infusion tube from the drug liquid container, the gas channel 13 can allow gas to enter the puncture device body 1 from the external environment, the liquid inlet 14 can be in communication with the drug liquid container, the liquid outlet can be in communication with the infusion tube, the gas inlet can be in communication with the external environment, and the gas outlet 15 can be in communication with the drug liquid container. The drug liquid channel 12 and the gas channel 13 both extend along the first axis direction X, and the drug liquid channel 12 and the gas channel 13 are arranged side by side and separated. The top of the puncture device body 1 is a needle tip 11, the liquid inlet 14 can be arranged at the needle tip 11, the liquid outlet can be arranged at the bottom of the puncture device body 1, and the two ends of the drug liquid channel 12 are connected to the liquid inlet 14 and the liquid outlet, respectively. The bottom of the puncture device body 1 can also have a tube sticking hole, the infusion tube can be fixedly attached to the tube sticking hole, and the tube sticking hole is in communication with the liquid outlet. The gas outlet 15 can be arranged at the needle tip 11, the gas inlet can be arranged at the side of the puncture device body 1, and the two ends of the gas channel 13 are connected to the gas inlet and the gas outlet 15, respectively. In the first axis direction X, the gas outlet 15 can be higher than the gas inlet, the liquid inlet 14 can be higher than the liquid outlet, and the liquid inlet 14 and the gas outlet 15 can be respectively arranged on both sides of the first axis of the puncture device body 1, and the first axis direction X is the extension direction of the first axis.

[0024] The needle tip 11 has a first bevel 111 and a second bevel 112 arranged oppositely, the first bevel 111 is arranged at an acute angle with the first axis direction X and is inclined relative to the first axis direction X, and the second bevel 112 is arranged at an acute angle with the first axis direction X and is inclined relative to the first axis direction X. The first bevel 111 defines at least part of the liquid inlet 14, and the second bevel 112 defines at least part of the gas outlet 15. In a first plane perpendicular to the first axis direction X, the orthogonal projection of the first bevel 111 is a first arc 18. By arranging the arc-shaped needle tip 11, the puncture strength of the needle tip 11 can be ensured, and the needle tip 11 is not easy to bend and deform during puncture, thereby improving the working efficiency of puncture.

[0025] In some embodiments, the arc-shaped first bevel 111 can be concave to the side of the gas channel 13. The orthogonal projection of the needle tip 11 on the first plane can include a segment of a circle, and the two ends of the first arc 18 are connected to the two ends of the segment of the circle, respectively, as shown. Fig. 3 In a second plane parallel to the first axis direction X, the orthogonal projection of the first bevel 111 can be an acute angle.

[0026] In some embodiments, the puncture device body 1 further comprises a needle shaft 16 below the needle tip 11, the needle shaft 16 can be circular, the needle shaft 16 has a vertical cutting surface 161, the vertical cutting surface 161 and the first inclined cutting surface 111 are on the same side of the second inclined cutting surface 112. The liquid inlet 14 comprises two parts, one part of the liquid inlet 14 is defined by the vertical cutting surface 161, and the other part of the liquid inlet 14 is defined by the first inclined cutting surface 111. In a first plane perpendicular to the first axis direction X, the orthogonal projection of the vertical cutting surface 161 is a second arc 19, the second arc 19 can be a minor arc. The length of the second arc 19 can be greater than the length of the first arc 18, of course, the length relationship of the first arc 18 and the second arc 19 can also not be limited. In a second plane parallel to the first axis direction X, the orthogonal projection of the vertical cutting surface 161 is U-shaped, the two sides of the U-shaped both comprise a first vertical cutting surface 162, a connecting surface 163 and a second vertical cutting surface 164. In the first axis direction X, the first inclined cutting surface 111, the first vertical cutting surface 162, the connecting surface 163 and the second vertical cutting surface 164 are sequentially connected. The first vertical cutting surface 162 and the second vertical cutting surface 164 can be parallel to the first axis direction X. By providing the connecting surface 163, the first vertical cutting surface 162 and the second vertical cutting surface 164 are stepped.

[0027] In some embodiments, the inner wall of the puncture device body 1 is further provided with two reinforcing ribs 17. The two reinforcing ribs 17 can extend along the first axis direction X. The two reinforcing ribs 17 are oppositely and spacedly arranged, and the liquid channel 12 is formed between the two reinforcing ribs 17. By providing the reinforcing rib 17, not only the guiding effect of the liquid channel 12 can be achieved, but also the strength can be increased. The liquid inlet 14 is formed at the needle tip 11 and the needle shaft 16, the caliber of the liquid inlet 14 can be greater than the caliber of the gas outlet 15, and the reinforcing rib 17 can be exposed to the liquid inlet 14.

[0028] In some embodiments, the contrast agent puncture device 100 can further comprise a dustproof cap 2, which can be fixed to the gas inlet. The dustproof cap 2 has a connecting channel arranged along a second axis direction, which can connect the external environment and the gas channel 13. The second axis direction can be perpendicular to the first axis direction X. The dustproof cap 2 can be provided with an air filter film, which is usually a mesh-shaped square or circular sheet, which has the functions of filtering particles of a certain size and blocking bacteria. When the gas channel 13 inhales, the air filter film can block the corresponding level of particles in the atmosphere, preventing the particles or bacteria in the atmosphere from cross-contaminating the drug solution in the drug solution container.

[0029] For the contrast agent puncture device 100, the needle tip 11 can pierce the bottle plug of a medicine container capable of storing contrast agent or other medical liquid, the bottom of which is capable of connecting to a liquid infusion tube in communication with the liquid outlet. When a negative pressure is generated in the medicine container due to suction of the medicine, gas can enter the medicine container from the gas passage 13, thereby facilitating the suction of the medicine.

[0030] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made under the concept of the present application, or direct / indirect application in other related technical fields, is included in the patent protection range of the present application.

Claims

1. A contrast media puncture device, characterized by, The puncture device comprises a puncture device body having a gas channel, a liquid channel, an air inlet, an air outlet, a liquid inlet and a liquid outlet, the gas channel and the liquid channel extend along a first axial direction, the gas channel and the liquid channel are arranged side by side and are separated, the gas channel communicates with the air inlet and the air outlet, the liquid channel communicates with the liquid inlet and the liquid outlet, the puncture device body has a needle tip, the needle tip has a first bevel and a second bevel arranged oppositely, the first bevel is arranged obliquely relative to the first axial direction, the first bevel defines at least part of the liquid inlet, and the second bevel defines at least part of the air outlet; and in a first plane perpendicular to the first axial direction, the orthographic projection of the first bevel is arc-shaped.

2. The contrast media puncture device according to claim 1, wherein In a second plane parallel to the first axial direction, the orthographic projection of the first bevel is an acute angle.

3. The contrast media puncture device of claim 1 wherein, The inner diameter of the liquid channel is larger than the inner diameter of the gas channel.

4. The contrast media puncture device of claim 1 wherein, The puncture device body further comprises a needle rod connected with the needle tip, the needle rod has a vertical surface, the vertical surface is connected with the first bevel, the vertical surface defines part of the liquid inlet, and the first bevel defines another part of the liquid inlet.

5. The contrast media puncture device of claim 4, wherein, The vertical surface comprises a first vertical surface, a connecting surface and a second vertical surface, in the first axial direction, the first bevel, the first vertical surface, the connecting surface and the second vertical surface are connected in sequence.

6. The contrast media puncture device of claim 1 wherein, The inner wall of the puncture device body is provided with two reinforcing ribs arranged oppositely, the reinforcing ribs extend along the first axial direction, and the liquid channel is located between the two reinforcing ribs.

7. The contrast media puncture device of claim 1 wherein, The contrast agent puncture device further comprises a dustproof cap arranged at the air inlet.

8. The contrast media puncture device of claim 1 wherein, The gas channel and the liquid channel are circular or square.

9. The contrast media puncture device of claim 1 wherein, The bottom of the puncture device body further has a tube sticking hole, the tube sticking hole is through the liquid outlet.

10. The contrast media puncture device according to any one of claims 1 to 9, wherein The arc is concave to one side of the gas channel.

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