Multifunctional needle biopsy and local administration device

Abstract

The invention discloses a multifunctional needle biopsy and local dosing device which comprises a handle used for being held, a telescopic body capable of being pushed and pulled is arranged in the handle, a medicine storage cavity is formed in the telescopic body, the bottom of the medicine storage cavity is communicated with an injection tube, and the top of the medicine storage cavity is connected with a puncture tube arranged in a needle tube. A tube body of the puncture tube is provided with a multi-directional injection hole, and the puncture tube is attached to a needle body in the needle tube. The device has good penetrability for lesion minimally invasive puncture and drug injection, can directly reach a target area more easily, and can be shrunk due to the adoption of a memory alloy material; the multi-direction puncture needle extends out of the needle tube, the function of medicine infusion is achieved, damage to the needle tip head is reduced, the problem that medicine cannot completely cover a medicine administration area clinically is solved, an indwelling tube is additionally arranged, repeated puncture is not needed, and the application range includes but is not limited to tumor medicine administration and medicine administration in other fields. Such as intracavitary administration, intracavitary administration, intracavitary administration and intracavitary administration in other tissues.

Description

Technical Field

[0001] The invention relates to the technical field of medical consumables, and in particular to a multifunctional puncture biopsy and local drug delivery device. Background Art

[0002] At present, various minimally invasive diagnosis and treatment technologies, represented by tumor treatment, are developing rapidly. Among them, the scope of clinical needs and application scenarios of minimally invasive drug delivery are constantly expanding. However, whether it is local drug delivery to tumors or drug delivery in other fields, such as intravascular drug delivery, intracavitary drug delivery, etc., there is still no dedicated equipment, which affects the clinical application and development of the above technologies. Not only that, many local drug delivery needs to be repeated, and repeated punctures and repeated positioning are required each time, which is time-consuming and labor-intensive, inconvenient for clinical treatment, increases the workload of clinicians, and increases operational risks. In addition, for larger drug delivery targets, the use of currently clinically accessible syringes to inject drugs and only deliver drugs in one direction makes it difficult to cover the drug delivery targets, affecting the treatment effect. Summary of the invention

[0003] In order to solve the above technical problems, a multifunctional puncture biopsy and local drug delivery device is provided.

[0004] To achieve the above-mentioned purpose, the present invention is configured in a preferred embodiment to include a handle for holding, a push-pull telescopic body is arranged inside the handle, a medicine storage chamber is arranged inside the telescopic body, the bottom of the medicine storage chamber is connected to the injection tube, and the top is connected to the puncture tube placed inside the needle tube, a spray hole for spraying medicine is opened on the tube body of the puncture tube, and the puncture tube is arranged to fit the needle body in the needle tube.

[0005] In a preferred embodiment of the present invention, at least three groups of grooves are provided on the wall of the needle body from top to bottom, and a corresponding number of puncture tubes are placed through the grooves. The puncture tubes are connected to the corresponding drug storage cavities, and the drug storage cavities are not connected to each other.

[0006] In a preferred embodiment of the present invention, the puncture head of the puncture tube is made of an alloy material and is triangular in shape, and the tube body is made of a memory alloy material.

[0007] In a preferred embodiment of the present invention, a frosted layer may be further attached to the puncture head of the puncture tube.

[0008] In a preferred embodiment of the present invention, a plurality of equidistant groove rings are provided on the outer wall of the needle tube.

[0009] In a preferred embodiment of the present invention, a raised prism is provided on the wall surface of the telescopic body, and the prism is engaged with a corresponding groove on the inner wall of the handle.

[0010] In a preferred embodiment of the present invention, a movable buckle is provided on the wall surface of the telescopic body, and the buckle realizes locking at different strokes through a plurality of grooves on the inner wall of the handle.

[0011] In a preferred embodiment of the present invention, the tube body of the injection tube may be further configured as follows: a flow-stop clamp for controlling the opening and closing of the infusion tube is provided on the tube body of the injection tube.

[0012] In a preferred embodiment of the present invention, a non-rigid indwelling tube made of a polymer material is screwed onto the top of the handle, and an inner cavity for placing a needle is provided in the indwelling tube.

[0013] Beneficial effects: The multifunctional puncture biopsy and local drug delivery device of the present invention has good puncture performance for minimally invasive drug delivery to tumors, and is easier to reach the target area directly. It adopts memory alloy material, can be contracted, and closed in the needle tube; after opening, it extends out from the inner hole of the needle tube to achieve the function of multi-directional drug infusion, reduce the damage to the needle tip, and solve the problem of clinical multi-directional and full coverage drug delivery. In addition, it is equipped with an indwelling tube, and there is no need for repeated puncture. Moreover, the scope of application is not limited to local drug delivery, but also includes drug delivery in other fields, such as intravenous and intra-arterial drug delivery, intrathoracic and abdominal drug delivery, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the telescopic body of the present invention.

[0017] Figure 3 It is an enlarged schematic diagram of part A of the present invention.

[0018] Figure 4 This is a schematic diagram of a single medicine chamber according to another embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the indwelling tube of the present invention.

[0020] In the figure, 1 is a needle tube; 2 is a handle; 3 is an injection tube; 4 is a telescopic body; 5 is a prism; 6 is a medicine storage cavity; 7 is a puncture head; 8 is a needle body; 9 is a groove ring; and 10 is an indwelling tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-5 As shown, a multifunctional puncture biopsy and local drug delivery device comprises a handle 2 for holding, a push-pull telescopic body 4 is arranged inside the handle 2, a drug storage cavity 6 is arranged inside the telescopic body 4, the bottom of the drug storage cavity 6 is connected with the injection tube 3, and the top is connected with the puncture tube placed inside the needle tube 1, a spray hole for spraying medicine is opened on the tube body of the puncture tube, and the puncture tube is fitted with the needle body 8 in the needle tube 1. When in use, the needle body 8 pierces the desired drug delivery area, and the puncture tube is driven to extend and open by the telescopic body 4, so that the drug delivery area is wider. This drug delivery device can be set in two implementation modes, one is that multiple drug cavities are connected to multiple pipelines respectively, and the other is that only one drug cavity is connected to multiple pipelines.

[0023] At least three groups of grooves are arranged on the wall of the needle body 8 from top to bottom, and a corresponding number of puncture tubes are placed through the grooves. The puncture tubes are connected to the corresponding drug storage cavities 6, and the drug storage cavities are not connected to each other, which is convenient for extending and retracting the puncture tubes.

[0024] The puncture head 7 of the puncture tube is made of alloy material and is triangular in shape. The tube body is made of memory alloy material. A frosted layer is attached to the puncture head 7 of the puncture tube. The frosted layer can increase the development effect during CT.

[0025] The outer wall of the needle tube 1 is provided with a plurality of equidistant groove rings 9 to increase the reflection surface, enhance the ultrasound and CT imaging effects, and facilitate observation of the insertion depth.

[0026] A raised prism 5 is provided on the wall surface of the telescopic body 4 , and the prism 5 is engaged with a corresponding groove on the inner wall of the handle 2 , so that the telescopic body 4 can be prevented from rotating when sliding.

[0027] A movable buckle is arranged on the wall surface of the telescopic body 4, and the buckle is locked at different strokes through multiple grooves on the inner wall of the handle 2. When in use, the buckle can be engaged with the grooves at different positions by sliding the telescopic body 4 to achieve the opening and closing degree of the puncture tube.

[0028] The tube body of the injection tube 3 is provided with a flow-stop clamp for controlling the opening and closing of the infusion pipeline to control the infusion flow rate.

[0029] A non-rigid indwelling tube 10 made of a polymer material is screwed onto the top of the handle 2, and an inner cavity for placing the needle tube 1 is provided in the indwelling tube 10. When the needle tube 1 is pulled out after puncture, the indwelling tube 10 will remain at the puncture site in the body, making it convenient for drug administration next time without the need for repeated puncture.

[0030] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity from another entity, but do not necessarily require or imply the existence of any such actual relationship or order between these entities.

[0031] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are the same or similar to the present invention belong to the protection scope of the present invention.

Claims

1. A multifunctional puncture biopsy and local drug delivery device, characterized in that: The invention comprises a handle (2) for holding, wherein a push-pull telescopic body (4) is arranged inside the handle (2), wherein a medicine storage chamber (6) is arranged inside the telescopic body (4), wherein the bottom of the medicine storage chamber (6) is communicated with the injection tube (3), and the top is connected with a puncture tube arranged inside the needle tube (1), wherein a spray hole for spraying medicine is provided on the tube body of the puncture tube, and the puncture tube is arranged to fit the needle body (8) inside the needle tube (1).

2. A multifunctional puncture biopsy and local drug delivery device according to claim 1, characterized in that: A non-rigid indwelling tube (10) made of a polymer material is screwed onto the top of the handle (2), and an inner cavity for placing the needle tube (1) is provided in the indwelling tube (10). The end of the needle tube (1) is shuttle-shaped, and at least two groups of holes are opened near the end. The same holes are opened at corresponding positions of the indwelling tube (10).

3. A multifunctional puncture biopsy and local drug delivery device according to claim 1, characterized in that: At least three groups of grooves are arranged on the wall surface of the needle body (8) from top to bottom, and a corresponding number of puncture tubes are placed through the grooves. The puncture tubes are connected to corresponding drug storage cavities (6), and the drug storage cavities are not connected to each other.

4. A multifunctional puncture biopsy and local drug delivery device according to claim 3, characterized in that: The puncture head (7) of the puncture tube is made of alloy material and is triangular in shape, and the tube body is made of memory alloy material.

5. A multifunctional puncture biopsy and local drug delivery device according to claim 4, characterized in that: A frosted layer is attached to the puncture head (7) of the puncture tube.

6. A multifunctional puncture biopsy and local drug delivery device according to claim 1, characterized in that: A plurality of equidistant groove rings (9) are provided on the outer wall of the needle tube (1).

7. A multifunctional puncture biopsy and local drug delivery device according to claim 1, characterized in that: A protruding prism (5) is provided on the wall surface of the telescopic body (4), and the prism (5) is engaged with a corresponding groove on the inner wall of the handle (2).

8. A multifunctional puncture biopsy and local drug delivery device according to claim 7, characterized in that: A movable buckle is provided on the wall surface of the telescopic body (4), and the buckle is locked at different strokes through a plurality of grooves on the inner wall of the handle (2).

9. The multifunctional puncture biopsy and local drug delivery device according to claim 1, characterized in that: The tube body of the injection tube (3) is provided with a flow-stop clamp for controlling the opening and closing of the infusion tube.

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