Positioning puncture needle with medicine injection function

Abstract

The utility model relates to the technical field of medical instruments, in particular to a positioning puncture needle with a medicine injection function. The positioning puncture needle with the medicine injection function comprises a puncture needle body, the puncture needle body comprises a needle handle and a needle tube, and the needle tube of the puncture needle body is sleeved with a protective sleeve; the needle handle of the puncture needle is sleeved with the protective sleeve; the push rod is slidably arranged on the inner side of the puncture needle, the length of the push rod is larger than that of the puncture needle, the push rod penetrates through a needle tube of the puncture needle from the needle handle end of the puncture needle, and a hollow pipeline is arranged in the middle of the push rod. According to the utility model, the puncture needle is punctured into the body of a patient and is close to an affected part, then an external syringe or sampler is connected with the push rod through the connector, and then the needle head end of the control push rod passes through the interior of the puncture needle and extends out of one end of the needle tube of the puncture needle to be punctured into the affected part; and then an external injector or a sampler is used for completing medicine injection or liquid extraction and sampling on the affected part.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a positioning puncture needle with drug injection function. Background Technology

[0002] A puncture needle is a precision medical device widely used in interventional therapy, diagnostic sampling, and therapeutic injection. It inserts a hollow needle tube into the patient's skin or organ, creating a channel inside the needle tube that allows doctors to insert other medical instruments into the patient's body for medical operations. It is highly precise and minimally invasive, ensuring safe and efficient surgery.

[0003] A puncture needle is a basic instrument in interventional radiology, similar to a scalpel in surgery. Therefore, puncture needles vary in different applications. Among them, the positioning puncture needle is an important medical tool, especially in the diagnosis and treatment of ground-glass nodules in the lungs. By inserting the puncture needle into the lung, a positioning needle is then advanced through the puncture needle tube to the vicinity of the affected area to mark the location, helping surgeons to quickly find and accurately remove the lesion during surgery.

[0004] Traditional puncture needles are primarily used to create micro-incisions to allow other medical devices to enter the body for treatment. Their specifications are relatively fixed, especially since the needle diameter is relatively large. When dealing with small affected areas, such as for procedures like drug injection or fluid sampling biopsy, the large-diameter needle can only cover the affected area with medication or aspirate a large amount of other bodily fluids. To achieve the desired results, other equipment or different sizes of puncture tubes are required, which is not conducive to simple and quick surgery.

[0005] Therefore, it is necessary to design a positioning puncture needle with drug injection function. Utility Model Content

[0006] To overcome the shortcomings of traditional positioning puncture needles, which have a large diameter and require additional equipment or different sizes of puncture tubes for procedures like drug injection and liquid sampling biopsy when the affected area is small, thus hindering the simplicity and speed of the procedure, the technical problem of this utility model is to provide a positioning puncture needle with drug injection function.

[0007] The technical implementation scheme of this utility model is as follows: a positioning puncture needle with drug injection function, comprising: a puncture needle and a sheath, the puncture needle comprising a needle handle and a needle tube, the needle tube of the puncture needle being covered with a sheath; a protective sleeve, the needle handle of the puncture needle being covered with a protective sleeve; a push rod, a push rod slidably provided on the inner side of the puncture needle, the length of the push rod being greater than the length of the puncture needle, the push rod passing through the needle tube of the puncture needle from the needle handle end of the puncture needle, the middle part of the push rod being a hollow tube, the end of the push rod near the needle tube of the puncture needle being needle-shaped; a connector, the end of the push rod not being a needle-shaped end having a groove, the groove containing a connector; a plug rod, a plug rod slidably provided in the hollow tube of the push rod; a plug, the end of the plug rod near the needle tip of the push rod having a plug in close contact with the push rod.

[0008] Furthermore, it also includes: a sealing cap, the groove of the push rod being connected to the sealing cap.

[0009] Furthermore, it also includes: a butt joint and a connecting pipe, wherein the flexible connecting pipe is fixedly connected to the connector via the butt joint and communicates with the hollow pipe.

[0010] Furthermore, it also includes: a scale, with a scale on the lower part of the needle tip of the push rod, the scale being located close to the position after the plug and the push rod are tightly fitted together.

[0011] Furthermore, the length of the blocking rod is greater than the length of the push rod.

[0012] The present invention has the following advantages: In the present invention, when it is necessary to inject medicine into the affected area or take a biopsy, the puncture needle is inserted into the patient's body and brought close to the affected area. Then, the external syringe or sampler is connected to the push rod through the connector. Then, the needle tip of the control push rod is inserted into the affected area through the inside of the puncture needle and extends out from one end of the puncture needle tube. Then, the external syringe or sampler is used to complete the drug injection or fluid sampling of the affected area. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is an exploded view of the three-dimensional structure of this utility model.

[0015] Figure 3 This is a partial three-dimensional cross-sectional view of the present invention.

[0016] Figure 4 This is an enlarged view of part A of this utility model.

[0017] Figure 5 This is an enlarged view of part B of this utility model.

[0018] Figure 6 This is an enlarged view of point C in this utility model.

[0019] Figure 7 This is a schematic diagram showing the installation of the connector, butt joint, and connecting pipe of this utility model.

[0020] In the attached diagrams: 1: puncture needle, 2: sheath, 3: protective sleeve, 4: push rod, 5: hollow tube, 6: connector, 7: plugging rod, 8: plug, 9: scale, 10: sealing cap, 11: butt joint, 12: connecting tube. Detailed Implementation

[0021] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0022] like Figures 1 to 7 As shown, this utility model provides a positioning puncture needle with drug injection function, specifically including a puncture needle 1, a sheath tube 2, a protective sleeve 3, a push rod 4, a connector 6, a plug rod 7, and a plug 8;

[0023] The puncture needle 1 includes two parts: a needle handle and a needle tube. The needle tube of the puncture needle 1 is covered with a protective sleeve 2, and the needle handle of the puncture needle 1 is covered with a protective sleeve 3, which is used to protect the puncture needle 1.

[0024] The puncture needle 1 has a sliding push rod 4 on its inner side. The length of the push rod 4 is greater than the length of the puncture needle 1. The push rod 4 passes through the needle tube of the puncture needle 1 from the needle handle end. The middle part of the push rod 4 is a hollow tube 5. The end of the push rod 4 near the needle tube of the puncture needle 1 is needle-shaped. The end of the push rod 4 that is not needle-shaped has a groove. A connector 6 is provided in the groove to achieve the purpose of injection or sampling using the push rod.

[0025] The push rod 4 has a slidable plug rod 7 inside the hollow tube 5. The length of the plug rod 7 is greater than the length of the push rod 4. The end of the plug rod 7 near the needle tip of the push rod 4 is provided with a plug 8. The plug 8 is in close contact with the push rod 4 and is used to fill the inside of the push rod 4 so that its structure can achieve the effect of pushing the positioning needle while achieving the injection effect.

[0026] For example, when medication or biopsy is required at the affected area, medical staff insert the puncture needle 1 into the patient's body and bring the end of the puncture needle 1 close to the affected area. Then, the medical staff remove the plug rod 7 and the plug 8 from the push rod 4, and seal the external syringe or sampler with the hollow tube 5 of the push rod 4 through the connector 6. Then, the push rod 4 is inserted from the needle handle end of the puncture needle 1, and the needle tip of the push rod 4 passes through the inside of the puncture needle 1 and extends out from one end of the needle tube of the puncture needle 1. The medical staff can control the needle tip of the push rod 4 to pierce the affected area, and then use the external syringe or sampler to inject medication or aspirate fluid from the affected area. The overall structure is simple and easy to operate.

[0027] In another embodiment, when puncture positioning is required, the plug rod 7, which is in its initial state, is placed inside the push rod 4, and the plug 8 completely covers the needle tip of the push rod 4. After the medical staff inserts the puncture needle 1 into the patient's body, the anchoring positioning needle can be pushed out of the needle tube of the puncture needle 1 and released through the push rod 4, thus completing the positioning needle injection operation. Example

[0028] like Figure 1 and Figure 2 As shown, based on Embodiment 1, it further includes a sealing cap 10, and the groove of the push rod 4 is connected to the sealing cap 10.

[0029] The sealing cap 10 at the top of the push rod 4 can seal the connector 6 and the inner wall of the hollow pipe 5 when the push rod 4 is used. This prevents external bacteria and impurities from entering while making the top of the push rod 4 more intact, making it easier for medical staff to use the push rod 4. Moreover, when the blocking rod 7 is placed inside the push rod 4, the part of the blocking rod 7 that extends from the connector 6 end of the push rod 4 can be pressed against the connector 6 by the sealing cap 10, limiting the position of the blocking rod 7 and preventing the plug 8 from detaching from the push rod 4.

[0030] like Figure 1 and Figure 7 As shown, based on embodiment 1, it further includes a connector 11 and a connecting pipe 12. The flexible connecting pipe 12 is fixedly connected to the connector 6 through the connector 11 and communicates with the hollow pipe 5.

[0031] When connecting the external syringe or sampler to the connector 6, medical staff can first fix and connect the flexible connecting tube 12 to the connector 6 through the connector 11, and then connect the external syringe or sampler to the connecting tube 12. In this way, a long-distance flexible connection between the external syringe or sampler and the plunger 4 is achieved, avoiding direct connection between the two, which would cause the vibration of the syringe position to be transmitted to the needle of the plunger 4 during operation, affecting the injection or sampling, or even causing harm to the patient.

[0032] like Figure 5As shown, based on embodiment 1, it also includes a scale 9. The lower part of the needle end of the push rod 4 is provided with a scale 9, and the position of the scale 9 is close to the position after the plug 8 and the push rod 4 are tightly fitted together.

[0033] The scale 9 at the needle tip of the push rod 4 allows medical staff to more intuitively determine the position of the plug 8, avoiding the situation where the plug 8 does not properly wrap the needle tip of the push rod 4 during puncture positioning, thus affecting the release of the positioning needle.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A positioning puncture needle with drug injection function, characterized in that it comprises: Puncture needle (1) and sheath (2), the puncture needle (1) is covered with sheath (2) and protective sleeve (3); Push rod (4), the inner side of the puncture needle (1) is connected to a push rod (4) with a length greater than that of the puncture needle (1), the middle part of the push rod (4) is a hollow tube (5), and the end of the push rod (4) near the needle tube of the puncture needle (1) is needle-shaped; Connector (6), the end of the push rod (4) that is not the needle tip is provided with connector (6); A blocking rod (7) is provided inside the push rod (4); A plug (8) is provided at one end of the plug rod (7) near the needle tip of the push rod (4).

2. The positioning and puncture needle with the medicine injection function according to claim 1, characterized in that include: The sealing cap (10) and the push rod (4) are connected in the groove by the sealing cap (10).

3. The positioning and puncture needle with the medicine injection function according to claim 2, characterized in that include: The butt joint (11) and the connecting pipe (12) are connected to the connector (6) through the butt joint (11) and are connected to the hollow pipe (5).

4. The positioning and puncture needle with the medicine injection function according to claim 3, characterized in that include: The lower part of the needle tip of the push rod (4) is marked with a scale (9).

5. The positioning and puncture needle with the medicine injection function according to claim 4, characterized in that, The length of the blocking rod (7) is greater than the length of the push rod (4).

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