A special needle for a rotatable and slidable implantable drug delivery device

Abstract

The present invention discloses a special needle for a rotatable and slidable implantable drug delivery device, which relates to the technical field of medical devices and includes: a needle handle; a needle tube connected to one end of the needle handle; a sliding column, one end of the sliding column is rotationally and limit-connected to the other end of the needle handle; a channel provided at one end of the sliding column, and the other end of the needle handle is located in the channel; a working wing block that is slidably and limit-fitted with the other end of the sliding column; wherein, in the first state, the working wing block is clamped with the needle handle; in the second state, the end of the needle tube away from the needle handle is located within the working wing block. The technical effect of the present invention is that it is convenient to provide effective protection for medical staff during needle withdrawal, and at the same time, the relevant components of its relevant protection structure are not prone to mutual interference.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a special needle for a rotatable and slidable implantable drug delivery device. Background Art

[0002] The special needle for an implantable drug delivery device is a medical device used to directly inject drugs into a patient's body to achieve rapid and effective drug delivery.

[0003] To increase safety, the relevant special needles for implantable drug delivery devices generally have a protective structure. However, after the medical staff completes the needle withdrawal, additional operations are required to wrap the needle tube, so it is difficult to provide effective protection for the medical staff during needle withdrawal. At the same time, the relevant components of the relevant protective structure are prone to interference with each other. Summary of the Invention

[0004] In view of the above technical problems, the present invention provides a special needle for a rotatable and slidable implantable drug delivery device, which is convenient for providing effective protection for medical staff during needle withdrawal, and at the same time, the relevant components of its relevant protective structure are not prone to interference with each other.

[0005] To solve the above problems, the technical solution provided by the present invention is as follows:

[0006] A special needle for a rotatable and slidable implantable drug delivery device, comprising:

[0007] A needle handle;

[0008] A needle tube connected to one end of the needle handle;

[0009] A sliding column, one end of the sliding column is rotationally and limit-connected to the other end of the needle handle;

[0010] A channel provided at one end of the sliding column, and the other end of the needle handle is located in the channel;

[0011] A working wing block that is slidably and limit-fitted with the other end of the sliding column;

[0012] Wherein, in the first state, the working wing block is snap-connected to the needle handle; in the second state, the end of the needle tube away from the needle handle is located within the working wing block.

[0013] Optionally, the sliding column includes:

[0014] A column body;

[0015] A rotating table connected to one end of the column body, and the channel is provided on the rotating table;

[0016] Wherein, the rotating table is rotationally and limit-connected to the other end of the needle handle.

[0017] Optionally, the sliding column further includes a rotation hole provided on the rotating table; along the direction from one end to the other end of the needle handle, the other end of the needle handle is sequentially connected with a rotating column and a limiting column; wherein, the rotation hole is rotationally connected with the rotating column, and the rotating table is in limiting connection with the limiting column.

[0018] Optionally, the sliding column further includes a first buckle connected to the other end of the column body, and in the first state, the first buckle is clamped with the working wing block.

[0019] Optionally, the sliding column further includes a first sliding groove provided on the column body, and the first sliding groove is in sliding and limiting cooperation with the working wing block.

[0020] Optionally, the working wing block includes:

[0021] A support block;

[0022] A through hole provided at one end of the support block, and in the second state, the end of the needle tube away from the needle handle is located in the through hole;

[0023] A second sliding groove provided at the other end of the support block, and the second sliding groove is in sliding and limiting cooperation with the other end of the sliding column;

[0024] A third buckle connected to the support block, and in the first state, the third buckle is clamped with the needle handle;

[0025] Two attaching wings respectively connected to both sides of the support block.

[0026] Optionally, it further includes a sliding pin, one end of the sliding pin is connected to the support block, and the other end of the sliding pin is in sliding and limiting cooperation with the other end of the sliding column.

[0027] Optionally, the working wing block further includes a second buckle connected to the support block, the second buckle is located in the second sliding groove, and in the first state, the second buckle is clamped with the other end of the sliding column.

[0028] Optionally, the working wing block further includes a closing block connected to the support block, and the closing block is located on the side of the through hole away from the second sliding groove.

[0029] Optionally, it further includes two folding wings respectively connected to both sides of the needle handle, and in the first state, the working wing block is clamped with both folding wings.

[0030] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0031] 1) When pulling out the needle of the special needle for the rotatable and slidable implantable drug delivery device, it is convenient to ensure that the end of the needle tube far from the needle handle (i.e., the tip of the needle tube) is always inside the patient's body or within the working wing block, preventing the tip of the needle tube from causing harm to medical staff during needle withdrawal, thus facilitating effective protection for medical staff during needle withdrawal;

[0032] 2) The channel is used to accommodate the other end of the needle handle to prevent interference between the sliding column and the needle handle during relative rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 of the first state of the special needle for the rotatable and slidable implantable drug delivery device proposed in the embodiment of the present invention Figure 1 ;

[0034] Figure 2 of the first state of the special needle for the rotatable and slidable implantable drug delivery device proposed in the embodiment of the present invention Figure 2 ;

[0035] Figure 3 of the second state of the special needle for the rotatable and slidable implantable drug delivery device proposed in the embodiment of the present invention Figure 1 ;

[0036] Figure 4 of the second state of the special needle for the rotatable and slidable implantable drug delivery device proposed in the embodiment of the present invention Figure 2 ;

[0037] Figure 5 One of the schematic structural diagrams of the needle handle proposed in the embodiment of the present invention;

[0038] Figure 6 Another schematic structural diagram of the needle handle proposed in the embodiment of the present invention;

[0039] Figure 7 One of the schematic structural diagrams of the sliding column proposed in the embodiment of the present invention;

[0040] Figure 8 Another schematic structural diagram of the sliding column proposed in the embodiment of the present invention;

[0041] Figure 9 One of the schematic structural diagrams of the working wing block proposed in the embodiment of the present invention;

[0042] Figure 10 Another schematic structural diagram of the working wing block proposed in the embodiment of the present invention;

[0043] In the figure: 100, needle handle; 102, folding wing; 103, rotating column; 104, limiting column; 200, sliding column; 201, column body; 202, rotating table; 203, rotating hole; 204, first sliding groove; 205, first buckle; 206, channel; 300, working wing block; 301, support block; 302, attaching wing; 304, third buckle; 305, closing block; 306, through hole; 307, second sliding groove; 308, second buckle; 400, syringe; 500, sliding pin. Detailed implementation mode

[0044] To further understand the content of the present invention, the present invention will be described in detail in combination with the accompanying drawings and embodiments.

[0045] The following further elaborates on the present application in combination with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings. The terms "first", "second", etc. in the present invention are set for the convenience of describing the technical solution of the present invention and have no specific limiting effect, and are all general references, not constituting a limiting effect on the technical solution of the present invention. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, and are all within the scope of protection required by the present invention.

[0046] Embodiment 1

[0047] Combined with the attached Figures 1-10, this embodiment provides a special needle for a rotatable and slidable implantable drug delivery device, including:

[0048] A needle handle 100;

[0049] A needle tube 400 connected to one end of the needle handle 100;

[0050] A sliding column 200, one end of the sliding column 200 is rotationally and limit-connected to the other end of the needle handle 100;

[0051] A channel 206 provided at one end of the sliding column 200, and the other end of the needle handle 100 is located within the channel 206;

[0052] A working wing block 300 that is slidably and limit-fitted with the other end of the sliding column 200;

[0053] Wherein, in the first state, the working wing block 300 and the needle handle 100 are snap-connected; in the second state, the end of the needle tube 400 away from the needle handle 100 is located within the working wing block 300.

[0054] Specifically, assuming that the initial state of the special needle for the rotatable and slidable implantable drug delivery device is the first state, when pulling out the needle, a medical staff member holds the working wing block 300 with one hand and pulls one end of the needle handle 100 in a direction away from the working wing block 300 with the other hand. The needle handle 100 drives the needle tube 400 to move, and at the same time, the needle handle 100 and the working wing block 300 are no longer snap-connected to each other. The medical staff member continues to pull one end of the needle handle 100 in a direction away from the working wing block 300, so that the other end of the needle handle 100 rotates limitably around one end of the sliding column 200, and at the same time, the other end of the sliding column 200 slides limitably along the working wing block 300 until the end of the needle tube 400 away from the needle handle 100 is located within the working wing block 300, thereby converting the special needle for the rotatable and slidable implantable drug delivery device into the second state; In summary, when pulling out the needle, the special needle for the rotatable and slidable implantable drug delivery device facilitates keeping the end of the needle tube 400 away from the needle handle 100 (i.e., the tip of the needle tube 400) always inside the patient's body or within the working wing block 300, preventing the tip of the needle tube 400 from causing harm to the medical staff during needle pulling, thereby facilitating effective protection for the medical staff during needle pulling.

[0055] Wherein, the needle handle 100 is used to carry the needle tube 400 and to drain the drug from the drug reservoir into the needle tube 400; the needle tube 400 is used to inject the drug into the patient's body; the first state specifically refers to the state when the special needle for the rotatable and slidable implantable drug delivery device is in use, such as Figures 1-2 ; the second state specifically refers to the state after the special needle for the rotatable and slidable implantable drug delivery device has been used, such as Figures 3-4 ; the channel 206 is used to accommodate the other end of the needle handle 100 and prevent interference between the sliding column 200 and the needle handle 100 during relative rotation.

[0056] Further, as shown in Figures 7-8 , the sliding column 200 includes:

[0057] A column body 201;

[0058] A rotating table 202 connected to one end of the column body 201, and a channel 206 is provided on the rotating table 202;

[0059] Wherein, the rotating table 202 and the other end of the needle handle 100 are rotationally and limit-connected.

[0060] Specifically, the column body 201 is used to carry the rotating table 202; the rotating table 202 is used to be rotationally and limit-connected to the other end of the needle handle 100, and a channel 206 for accommodating the other end of the needle handle 100 is provided on the rotating table 202.

[0061] Further, as shown in Figures 5-8 , the sliding column 200 further includes a rotating hole 203 provided on the rotating table 202; along the direction from one end to the other end of the needle handle 100, a rotating column 103 and a limiting column 104 are sequentially connected to the other end of the needle handle 100; wherein, the rotating hole 203 and the rotating column 103 are rotationally connected, and the rotating table 202 and the limiting column 104 are limit-connected.

[0062] Specifically, the rotating hole 203 and the rotating column 103 are rotationally connected, which is convenient for realizing the rotational connection between one end of the sliding column 200 and the other end of the needle handle 100; the rotating table 202 and the limiting column 104 are limit-connected, which is convenient for realizing the limit connection between one end of the sliding column 200 and the other end of the needle handle 100.

[0063] Further, as shown in Figures 7-8 , the sliding column 200 further includes a first buckle 205 connected to the other end of the column body 201, and in the first state, the first buckle 205 is snap-connected to the working wing block 300.

[0064] Specifically, in the first state, the first buckle 205 is snap-connected to the working wing block 300. When it is necessary to convert the first state to the second state, first, the sliding column 200 and the working wing block 300 are gently toggled in the opposite direction, so that the first buckle 205 and the working wing block 300 are no longer snap-connected, and then the state conversion is carried out.

[0065] Further, as shown in Figures 7-8 , the sliding column 200 further includes a first sliding groove 204 provided on the column body 201, and the first sliding groove 204 and the working wing block 300 are in sliding and limit cooperation.

[0066] Specifically, the first sliding groove 204 and the working wing block 300 are in sliding and limit cooperation, which is convenient for realizing the sliding and limit cooperation between the other end of the sliding column 200 and the working wing block 300.

[0067] Further, as shown in Figures 9-10 , the working wing block 300 includes:

[0068] A support block 301;

[0069] A through hole 306 provided at one end of the support block 301. In the second state, the end of the syringe 400 away from the syringe handle 100 is located in the through hole 306;

[0070] A second sliding groove 307 provided at the other end of the support block 301, and the second sliding groove 307 is in sliding limit fit with the other end of the sliding column 200;

[0071] A third buckle 304 connected to the support block 301. In the first state, the third buckle 304 is latched with the syringe handle 100;

[0072] Two attaching wings 302 respectively connected to both sides of the support block 301.

[0073] Specifically, the support block 301 is used to support the through hole 306, the second sliding groove 307, etc.; the through hole 306 is used to accommodate the end of the syringe 400 away from the syringe handle 100; the second sliding groove 307 is used to be in sliding limit fit with the column body 201 of the sliding column 200, so as to increase the relative movement stroke between the working wing block 300 and the sliding column 200, so that the tip of the syringe 400 can be more easily received in the through hole 306 with a smaller elastic deformation, and thus it is convenient to simplify the operation of medical staff; in the first state, the third buckle 304 is used to latch with the syringe handle 100; the two attaching wings 302 are both convenient for increasing the contact area between the working wing block 300 and the patient, thereby increasing the comfort of the patient, and also convenient for medical staff to hold the working wing block 300.

[0074] Further, as shown in Figure 3 , it further includes a sliding pin 500. One end of the sliding pin 500 is connected to the support block 301, and the other end of the sliding pin 500 is in sliding limit fit with the other end of the sliding column 200.

[0075] Specifically, the other end of the sliding pin 500 is in sliding limit fit with the first sliding groove 204 of the sliding column 200.

[0076] Further, as shown in Figures 9-10 , the working wing block 300 further includes a second buckle 308 connected to the support block 301. The second buckle 308 is located in the second sliding groove 307. In the first state, the second buckle 308 is latched with the other end of the sliding column 200.

[0077] Specifically, in the first state, the second buckle 308 is engaged with the first buckle 205 of the sliding column 200. When it is necessary to convert the first state to the second state, first, the sliding column 200 and the working wing block 300 are gently toggled in the opposite direction to disengage the first buckle 205 from the second buckle 308, and then the state conversion is carried out.

[0078] Furthermore, as Figures 9-10 , the working wing block 300 further includes a closing block 305 connected to the support block 301. The closing block 305 is located on the side of the through hole 306 away from the second sliding groove 307.

[0079] Specifically, in the second state, the closing block 305 contacts the tip of the syringe 400 to prevent the tip of the syringe 400 from being exposed. At the same time, when the tip of the syringe 400 cooperates with the closing block 305, slight elastic deformation will occur, so that the closing block 305 is also used to block the movement range of the tip of the syringe 400, making it difficult for the tip of the syringe 400 to come out.

[0080] Furthermore, as Figures 1-2 , it further includes two folding wings 102 respectively connected to both sides of the needle handle 100. In the first state, the working wing block 300 and the two folding wings 102 are both engaged.

[0081] Specifically, the third buckle 304 of the working wing block 300 is engaged with the two folding wings 102. Among them, the two folding wings 102 are convenient for medical staff to hold, thus facilitating needle extraction.

[0082] The above schematically describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A special needle for a rotatable and slidable implantable drug delivery device, characterized in that, Comprising: Needle handle; Needle tube connected to one end of the needle handle; Sliding column, one end of the sliding column is rotationally and limit-connected to the other end of the needle handle; A channel provided at one end of the sliding column, and the other end of the needle handle is located within the channel; A working wing block that is slidably and limit-fitted with the other end of the sliding column; Wherein, in the first state, the working wing block and the needle handle are snap-connected; in the second state, the end of the needle tube away from the needle handle is located within the working wing block; The sliding column includes: Column body; A rotating table connected to one end of the column body, and the channel is provided on the rotating table; Wherein, the rotating table is rotationally and limit-connected to the other end of the needle handle; The sliding column further includes a first snap provided at the other end of the column body, and in the first state, the first snap is snap-connected to the working wing block; The sliding column further includes a first sliding groove provided on the column body, and the first sliding groove is slidably and limit-fitted with the working wing block; The working wing block includes a support block; The working wing block further includes a second snap connected to the support block, the second snap is located within a second sliding groove, and in the first state, the second snap is snap-connected to the other end of the sliding column.

2. The special needle for a rotatable and slidable implantable drug delivery device according to claim 1, wherein The sliding column further includes a rotating hole provided on the rotating table; along the direction from one end to the other end of the needle handle, a rotating column and a limit column are sequentially connected to the other end of the needle handle; wherein, the rotating hole is rotationally connected to the rotating column, and the rotating table is limit-connected to the limit column.

3. A special needle for a rotatable and slidable implantable drug delivery device according to any one of claims 1-2, characterized in that, The working wing block includes: A through hole provided at one end of the support block, and in the second state, the end of the needle tube away from the needle handle is located within the through hole; A second sliding groove provided at the other end of the support block, and the second sliding groove is slidably and limit-fitted with the other end of the sliding column; A third snap connected to the support block, and in the first state, the third snap is snap-connected to the needle handle; Two attaching wings respectively connected to both sides of the support block.

4. The special needle for a rotatable and slidable implantable drug delivery device according to claim 3, characterized in that, It further includes a sliding pin, one end of the sliding pin is connected to the support block, and the other end of the sliding pin is slidably and limit-fitted with the other end of the sliding column.

5. The special needle for a rotatable and slidable implantable drug delivery device according to claim 3, wherein The working wing block further includes a closing block connected to the support block, and the closing block is located on the side of the through hole away from the second sliding groove.

6. A special needle for a rotatable and slidable implantable drug delivery device according to any one of claims 1-2, characterized in that, It further includes two folding wings respectively connected to both sides of the needle handle, and in the first state, the working wing block and the two folding wings are both snap-connected.

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