Puncture needle for extracting and injecting medicine into bone joint effusion

Abstract

The utility model discloses a kind of bone joint effusion extraction and injection medicine with puncture needle, belong to medical instrument technical field;Including main part, the main part is hollow structure, and the upper and lower end surfaces of main part are reserved respectively with the first installation hole and the second installation hole that communicate inside;Transportation rubber pipe passes through the main part by the first installation hole and the second installation hole;Bottom sealing cap is fixed in main part bottom by bolt adhesion and closes the second installation hole;The bottom of transportation rubber pipe is fixed between bottom sealing cap and main part adhesion surface;Puncture needle is installed in the bottom of bottom sealing cap, and puncture needle communicates transportation rubber pipe;The side of main part is provided with button, and the side of main part is connected with movable rod by button face;Movable rod penetrates the side wall of the main part, and spring is set on movable rod located in the outside of main part.The utility model provides a kind of bone joint effusion extraction and injection medicine with puncture needle, can be realized extraction flow rate adjustment by single hand, and it is more convenient to operate when operation.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and more specifically, to a puncture needle for aspirating and injecting drugs into joint effusions. Background Technology

[0002] When performing joint aspiration and intra-articular drug injection for patients with joint effusion, current puncture needles are typically used with syringes or medical pumps. Taking pump operation as an example, for surgeries requiring delicate manipulation, such as aspiration or drug administration of bone and joint effusion, both hands are needed to operate the puncture needle. Uneven pressure during aspiration can easily lead to bleeding. When switching to injection, the uncontrollable pressure during injection may cause the drug to accumulate locally due to excessively rapid injection. Adjusting the pressure also requires one hand, which is very troublesome.

[0003] Patent 202021337540.6 discloses a purulent joint irrigation device, including a puncture needle, a drainage tube, and a pump. The device pushes the medication and draws out joint effusion through the pump connected to the drainage tube. During the operation, when it is necessary to adjust the pressure, one still has to separate their hands to adjust the switch on the pump to adjust the pressure, and one-handed pressure adjustment is not possible.

[0004] Based on the above problems, we propose a puncture needle for aspirating and injecting medication into joint effusions, which can be applied to pump operation scenarios and allows for flow rate adjustment during aspiration or medication administration with one hand. Utility Model Content

[0005] To overcome the problems mentioned in the background art, this utility model provides a puncture needle for aspirating and injecting drugs into joint effusion.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A puncture needle for extracting and injecting drugs into joint effusion includes a body, the body having a hollow structure, and a first mounting hole and a second mounting hole communicating with the interior are respectively reserved on the upper and lower end faces of the body.

[0008] A delivery hose, which passes through the body via a first mounting hole and a second mounting hole;

[0009] A bottom sealing cap is fixed to the bottom of the main body by bolts and seals the second mounting hole; the bottom of the delivery hose is fixed between the bottom sealing cap and the main body contact surface;

[0010] A puncture needle is installed at the bottom of the bottom sealing cap and is connected to the delivery tubing; wherein...

[0011] A button is provided on the side of the main body, and a movable rod is connected to the side of the button facing the main body; the movable rod passes through the side wall of the main body, and a spring is sleeved on the movable rod located outside the main body.

[0012] The pump is connected to the top of the delivery hose and is operated by holding the main body with one hand. When the puncture needle enters the predetermined position, and when adjustment is needed, the end of the movable rod is squeezed by pressing the button with a finger to change the flow rate.

[0013] Preferably, a rubber ring is bonded to the inner wall of the first mounting hole, and the delivery tube passes through the rubber ring through the central hole of the rubber ring.

[0014] Preferably, the side of the main body is provided with a handle integrally formed with the main body on the side opposite to the handle, the top of the handle is arched and fixedly connected to the side wall of the main body; the handle is provided with multiple anti-slip grooves.

[0015] Preferably, the button sidewall has multiple grooves along the axial direction of the main body on the side opposite to the main body.

[0016] Preferably, the top of the puncture needle is provided with a threaded connector, and the bottom of the sealing cap is provided with an internal threaded hole that is threaded to engage with the threaded connector. The threaded connector connects the puncture needle and the delivery tube.

[0017] Preferably, the second mounting hole has at least one right-angled notch on the inner wall of the main body, and the shape of the bottom side of the bottom sealing cap matches the shape of the notch.

[0018] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0019] This invention provides a puncture needle for extracting joint effusion and injecting medication. When extracting joint effusion or injecting medication, pressing a button with a finger causes the end of the movable rod to squeeze the delivery tube, thereby changing the flow rate. Compared with the traditional method of extracting with a syringe or adjusting the pressure gauge of a pump, this method is more convenient for one-handed operation and reduces the difficulty of operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] The markings in the diagram are as follows: 1. Main body; 2. First mounting hole; 3. Rubber ring; 4. Delivery hose; 5. Handle; 6. Anti-slip groove; 7. Button; 8. Groove; 9. Movable rod; 10. Spring; 11. Bottom sealing cap; 12. Puncture needle; 13. Threaded connector; 14. Second mounting hole; 15. Bolt. Detailed Implementation

[0025] To better understand the purpose, structure, and function of this utility model, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0026] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in the embodiments are only for illustrating the technical solution and do not limit the scope of protection of this utility model. It is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings for those skilled in the art.

[0027] Unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] Example 1:

[0029] like Figure 1-3As shown, this application provides a puncture needle for aspirating and injecting drugs into joint effusion, including a main body 1, a delivery tube 4, a bottom sealing cap 11, a puncture needle 12, and a button 7. The main body 1 has a hollow structure, and the upper and lower end faces of the main body 1 are respectively provided with a first mounting hole 2 and a second mounting hole 14 communicating with the interior. The delivery tube 4 passes through the main body 1 through the first mounting hole 2 and the second mounting hole 14. The bottom sealing cap 11 is fixed to the bottom of the main body 1 by bolts 15 and closes the second mounting hole 14. The bottom of the delivery tube 4 is fixed between the bottom sealing cap 11 and the contact surface of the main body 1. The puncture needle 12 is installed at the bottom of the bottom sealing cap 11 and communicates with the delivery tube 4. A button 7 is provided on the side of the main body 1, and a movable rod 9 is connected to the side of the button 7 facing the main body 1. The movable rod 9 passes through the side wall of the main body 1, and a spring 10 is sleeved on the movable rod 9 located outside the main body 1.

[0030] In the above embodiment, the top of the delivery tubing 4 is connected to a pump. During infusion, the delivery tubing 4 is connected to the upper medicine tank and then to the pump. The valve on the upper medicine tank is opened, and the medicine is pushed into the joint under the action of the pump. When aspirating joint effusion, the joint effusion enters the delivery tubing 4 from the puncture needle 12 and is then transported to the waste tank by the pump. During operation, the main body 1 is held with one hand, and the index, middle and ring fingers hold the button 7. When aspiration is in progress, the button 7 is pressed to make the movable rod 9 squeeze the delivery tubing 4 in the main body 1, thereby changing the flow rate. When the hand is released, the button 7 is reset under the action of the spring 10. When the puncture needle 12 needs to be replaced, it can be removed by disassembling the bolt 15 at the bottom of the bottom sealing cap 11.

[0031] As a preferred embodiment of the above, such as Figure 1 and Figure 2 As shown, a rubber ring 3 is glued around the inner wall of the first mounting hole 2. The conveying tube 4 passes through the middle hole of the rubber ring 3. The rubber ring 3 can play a dustproof role, preventing dust from entering the main body 1.

[0032] As a preferred embodiment of the above, such as Figure 1 and Figure 2 As shown, the side of the main body 1 is provided with a handle 5 integrally formed with the main body 1 on the side opposite to the handle 5. The top of the handle 5 is arched and fixedly connected to the side wall of the main body 1. The handle 5 is provided with multiple anti-slip grooves 6. The design of the handle 5 can improve the grip comfort. In particular, the design of the anti-slip grooves 6 can increase the static friction of the grip and prevent the grip from loosening due to sweat.

[0033] As a preferred embodiment of the above, such as Figure 1 and Figure 2As shown, multiple grooves 8 are provided on the side wall of the button 7 along the axial direction of the main body 1 on the side opposite to the main body 1. This design increases the grip comfort of the index, middle and ring fingers and can play a role in preventing slippage.

[0034] As a preferred embodiment of the above, such as Figure 3 As shown, the top of the puncture needle 12 is provided with a threaded connector 13, and the bottom of the sealing cap 11 is provided with an internal threaded hole that is threaded to engage with the threaded connector 13. The threaded connector 13 connects the puncture needle 12 and the delivery tube 4. The threaded connector 13 is installed by means of threaded connection to facilitate the replacement of the puncture needle 12.

[0035] As a preferred embodiment of the above, such as Figure 3 As shown, the second mounting hole 14 has at least one right-angled notch on the inner wall of the main body 1. The bottom side of the bottom sealing cap 11 has a ring shape that matches the shape of the notch. Since the delivery tube 4 itself has elasticity, if the connection surface between the bottom sealing cap 11 and the main body 1 is flat, the delivery tube 4 may rebound, causing failure to extract bone joint effusion or deliver medication. By designing several right-angled notches in the second mounting hole 14, the bottom rebound of the delivery tube 4 can be effectively avoided.

[0036] This application discloses a puncture needle for extracting and injecting medication into joint effusion. By pressing a button with a finger, the end of the movable rod squeezes the delivery tubing, thereby changing the flow rate. Compared with the traditional method of extracting and injecting medication using a syringe or adjusting the pressure gauge of a pump, this device is more convenient for one-handed operation and reduces the difficulty of operation.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A puncture needle for aspirating and injecting medication into joint effusion, characterized in that: Includes a main body (1), which is a hollow structure, and the upper and lower end faces of the main body (1) are respectively reserved with a first mounting hole (2) and a second mounting hole (14) that connect to the interior; A delivery hose (4) passes through the body (1) through a first mounting hole (2) and a second mounting hole (14); Bottom sealing cap (11), the bottom sealing cap (11) is fixed to the bottom of the main body (1) by bolts (15) and closes the second mounting hole (14); the bottom of the conveying hose (4) is fixed between the bottom sealing cap (11) and the contact surface of the main body (1); A puncture needle (12) is installed at the bottom of the bottom sealing cap (11), and the puncture needle (12) is connected to the delivery tube (4); wherein, A button (7) is provided on the side of the main body (1), and a movable rod (9) is connected to the side of the button (7) facing the main body (1); the movable rod (9) passes through the side wall of the main body (1), and a spring (10) is sleeved on the movable rod (9) located outside the main body (1).

2. The puncture needle for aspirating and injecting medication into joint effusion according to claim 1, characterized in that, A rubber ring (3) is glued around the inner wall of the first mounting hole (2), and the conveying tube (4) passes through the rubber ring (3) through the middle hole of the rubber ring (3).

3. The puncture needle for aspirating and injecting medication into joint effusion according to claim 1, characterized in that, The main body (1) has a handle (5) integrally formed with the handle (5) on one side of its side relative to the handle (5). The top of the handle (5) is arched and fixedly connected to the side wall of the main body (1). Multiple anti-slip grooves (6) are provided on the handle (5).

4. The puncture needle for aspirating and injecting medication into joint effusion according to claim 1, characterized in that, The button (7) has multiple grooves (8) on the side wall opposite to the main body (1) along the axial direction of the main body (1).

5. The puncture needle for aspirating and injecting medication into joint effusion according to claim 1, characterized in that, The top of the puncture needle (12) is provided with a threaded connector (13), and the bottom of the sealing cap (11) is provided with an internal threaded hole that is threadedly connected to the threaded connector (13). The threaded connector (13) connects the puncture needle (12) and the delivery tube (4).

6. The puncture needle for aspirating and injecting medication into joint effusion according to claim 1, characterized in that, The second mounting hole (14) has at least one right-angle notch on the inner wall of the main body (1), and the bottom sealing cap (11) has a ring shape on the bottom side that matches the shape of the notch.

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