Syringe facilitating uniform injection of tumor medicine

Abstract

The utility model provides an injector facilitating uniform injection of tumor drugs. The injector comprises an injection tube assembly, an injection rod assembly and a stop dog assembly. After the injection tube body is inserted into the tumor, the stop dog assembly is removed, in the subsequent injection process, an operator moves the injection tube body outwards in the direction of one side of the handle of the injection rod, so that the injection tube body slowly and gradually moves outwards from the interior of the tumor, and in the process of gradually moving the injection tube body outwards, the injection tube body is prevented from falling off. The medicine in the injection tube body synchronously moves from the interior of the tumor to the exterior of the tumor along the injection tube body, so that the medicine in the injection tube body is gradually sprayed out from the interior of the tumor to the exterior, and uniform injection of the medicine in the tumor is realized, namely the medicine can be uniformly distributed on the moving path of the injection tube body for injection; and dense injection is not carried out at a fixed place.

Description

Technical Field

[0001] The utility model relates to the technical field of tumor medical treatment, and particularly relates to a syringe convenient for uniformly injecting tumor drugs. Background Art

[0002] Generally speaking, currently widely adopted tumor treatment methods include technical means such as surgical resection of cancer tissues, radiotherapy, chemotherapy, etc. However, in recent years, technologies for anti-cancer treatment using nanomaterials (such as nanostructures for radiotherapy or nanostructures for heat treatment) have been developed.

[0003] For example, nanomaterials, radioactive substances or anti-cancer drugs that need to be directly injected into tumors are injected into tumors through a syringe. Usually, the syringe has a syringe structure in the form of a syringe, which injects drugs by the pressure of a piston. When injecting, the syringe inserts the needle into the required position, and then operates the piston to inject the drugs in the syringe through the needle.

[0004] However, there is a problem with the traditional syringe structure, that is, since the syringe injects drugs through the needle, the drugs are discharged at one place in the tumor, and it is difficult to uniformly inject the drugs to the required position in the tumor. Summary of the Invention

[0005] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide a syringe convenient for uniformly injecting tumor drugs, which can realize uniform injection of drugs into the interior of the tumor.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The present application provides a syringe convenient for uniformly injecting tumor drugs, the syringe includes an injection tube assembly, an injection rod assembly and a stopper assembly. The injection tube assembly includes an injection tube body with openings at both ends, and the injection tube body is provided with a through hole penetrating through both ends. The injection rod assembly includes an injection rod body and an injection rod handle provided at one end of the injection rod body. The injection rod body is sleeved in the inner cavity of the injection tube body and forms a sliding connection with its inner cavity, and is used to discharge the drugs placed in the inner cavity of the injection tube body. The outer diameter dimension of the injection rod handle is larger than the outer diameter dimension of the injection rod body. The stopper assembly is detachably and tightly installed on the outer peripheral surface of the injection rod body, and can be used to limit the injection tube body from moving along the injection rod body to the side close to the injection rod handle.

[0008] Furthermore, the stopper assembly includes a stopper body and a pair of elastic clamping grooves provided on one side of the stopper body. The pair of elastic clamping grooves are detachably and tightly installed on the outer peripheral surface of the injection rod body.

[0009] Further, one end of the injection tube body is provided with an injection tube handle for easy holding, and the injection tube handle is provided with a through-hole structure having the same opening size as the through-hole in the injection tube body.

[0010] Further, the outer diameter of the injection rod body is equal to the diameter of the through-hole in the injection tube body.

[0011] Further, one end of the injection tube body away from the injection tube handle is provided with a bevel for easy insertion.

[0012] Further, scale lines for easy direct observation by the operator are provided on the outer surfaces of the injection rod body and the injection tube body.

[0013] The beneficial effects of the present utility model are as follows: By sucking the drug liquid for injecting into the tumor into the inner cavity of the injection tube body in the injection tube assembly, and at the same time, the injection rod body in the injection rod assembly is sleeved in the inner cavity of the injection tube body, and at this time, the stopper assembly is sleeved on the injection rod body at a position near the injection tube handle to limit the injection tube body from moving towards the injection rod handle side of the injection rod body during the process of the operator inserting the beveled end of the tip of the injection tube body into the tumor, so as to prevent the drug liquid in the injection tube body from spraying out during the process before the injection tube body is inserted into the tumor. After the injection tube body is inserted into the tumor, the stopper assembly is removed, and during the subsequent injection process, the operator moves the injection tube body outward along the direction of the injection rod handle side, so that the injection tube body slowly moves outwards from the inside of the tumor. During the process of gradually moving outwards, the drug in the injection tube body also moves synchronously along the injection tube body from the inside of the tumor to the outside of the tumor. In this way, the drug in the injection tube body gradually sprays out from the inside of the tumor to the outside, realizing the uniform injection of the drug in the tumor, that is, the drug can be evenly distributed along the moving path of the injection tube body for injection, rather than being intensively injected at a fixed place. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a syringe for facilitating uniform injection of tumor drugs in an embodiment of the present application.

[0015] Figure 2 It is a structural state schematic diagram of the stopper assembly removed from the injection rod body in an embodiment of the present application.

[0016] Figure 3 It is an exploded structural schematic diagram of the installation and assembly of a syringe for facilitating uniform injection of tumor drugs in an embodiment of the present application.

[0017] Figure 4 It is a structural state schematic diagram of the injection tube body moving to the injection rod handle in an embodiment of the present application.

[0018] Figure 5 isFigure 4 Schematic cross-sectional structure diagram in the direction of A-A in

[0019] Figure 6 This is a schematic diagram of the injection principle when the injection tube body in the embodiment of the present application injects inside a tumor.

[0020] In the figure:

[0021] 100 - syringe, 10 - injection tube assembly, 11 - injection tube body, 12 - injection tube handle, 13 - bevel, 20 - injection rod assembly, 21 - injection rod body, 22 - injection rod handle, 30 - stopper assembly, 31 - stopper body, 32 - elastic card slot. Detailed implementation manners

[0022] The following further elaborates on the present utility model in detail in conjunction with the description drawings of the specification and the specific implementation manners.

[0023] Refer to the appendix Figure 1 As shown, this embodiment provides a syringe 100 facilitating uniform injection of tumor drugs, which includes an injection tube assembly 10, an injection rod assembly 20, and a stopper assembly 30. The injection rod assembly 20 cooperates with the injection tube assembly 10 to uniformly inject the tumor drugs stored in the injection tube assembly 10 into the tumor. The stopper assembly 30 cooperates with the injection rod assembly 20 to prevent the injection tube assembly 10 from sliding along the injection rod assembly 20, thereby avoiding the tumor drugs in the injection tube assembly 10 spraying out before the injection tube assembly 10 is inserted into the tumor.

[0024] With reference to the appendix Figure 1 and 3 As shown, in this embodiment, the injection tube assembly 10 includes an injection tube body 11 with openings at both ends. The injection tube body 11 is a hollow tubular structure that extends very long and has a hollow interior. The injection tube body 11 is provided with a through hole that penetrates both ends. The injection tube body 11 can form various lengths according to the dose of the contained drug or the insertion depth according to the location of the tumor. For example, the injection tube body 11 can have a total length of 100 mm, 150 mm, 200 mm, etc., without particular limitation.

[0025] The injection tube body 11 has a structure with openings at both ends, and a bevel 13 is formed at one end. Therefore, the injection tube body 11 can be easily inserted into the skin or the like using the bevel 13.

[0026] In addition, the injection tube body 11 can have a structure in which medical wax (not shown) is applied to the bevel 13, that is, used to block the opening at the bevel 13. That is, before inserting the injection tube body 11 into the tumor, it is possible to prevent the tumor drugs from leaking out from the bevel 13 due to external factors.

[0027] At the other end of the syringe barrel 11, i.e., the opposite end of the bevel 13, a syringe handle 12 can be installed. The diameter formed by the syringe handle 12 is large enough to be greater than the outer diameter of the syringe barrel 11, enabling the user to conveniently hold it with the hand or an object similar to the hand. Therefore, the user can axially move the syringe barrel 11 or use the syringe handle 12 to move it, making the operation more convenient.

[0028] In some embodiments, markings such as scale lines can be formed on the surface of the syringe barrel 11 to indicate the internal volume along the axis. Accordingly, the user can accurately check the dose or injection volume of the drug through the scale lines.

[0029] Continue to refer to the attached Figure 1 and 3 As shown, in this embodiment, the plunger assembly 20 includes a plunger body 21 and a plunger handle 22 provided at one end of the plunger body 21. When in use, the plunger body 21 is inserted into the inner cavity of the syringe barrel 11, and the drug contained in the syringe barrel 11 is pushed out of the syringe barrel 11. The plunger body 21 is formed with a diameter corresponding to the inner diameter of the syringe barrel 11 and is movably installed in the inner cavity of the syringe barrel 11.

[0030] The plunger body 21 can be formed with a length corresponding to the syringe barrel 11. When the plunger body 21 moves relative to the syringe barrel 11, the drug contained in the syringe barrel 11 is discharged through the bevel 13.

[0031] The plunger handle 22 is formed with a diameter large enough compared to the diameter of the plunger body 21, enabling the user to conveniently hold the plunger body 21 with the hand or an object similar to the hand and preventing the plunger body 21 from completely entering the syringe barrel 11. Therefore, the user can easily insert the plunger body 21 into the syringe barrel 11 using the plunger handle 22 and fix the plunger body 21 during the operation. Therefore, in a state where the plunger body 21 moves relative to the syringe barrel 11, the user can effectively control the movement of the plunger body 21 using the plunger handle 22, thereby minimizing obstacles and making it more convenient to use.

[0032] Markings such as scale lines can be formed on the surface of the plunger body 21 to indicate the moving distance of the plunger body 21 along the axis. Therefore, the user can accurately view the relative movement amount between the syringe barrel 11 and the plunger body 21 and the corresponding drug dose or injection volume through the scale lines.

[0033] Refer to the attached Figures 1 to 3As shown, the stopper assembly 30 is detachably fixed to the injection rod body 21 to limit the relative movement between the injection tube body 11 and the injection rod body 21. That is, the injection tube body 11 and the injection rod body 21 cannot move in the drug injection direction through the stopper assembly 30 and can be fixed to each other. The drug injection direction can be understood as the direction allowing the drug to flow out or the relative movement direction of the injection rod body 21.

[0034] Refer to the attached Figure 1 As shown, the stopper assembly 30 is detachably fixed to the required position of the injection rod body 21. Therefore, by contacting the front end on one side of the injection tube handle 12, the stopper assembly 30 is fixed to the injection rod body 21. Therefore, before injection, the injection tube body 11 cannot move along the injection rod body 21 in the direction of the injection rod handle 22, effectively preventing drug discharge.

[0035] Refer to the attached Figure 2 and 3 As shown, specifically, the stopper assembly 30 includes a stopper body 31 and a pair of elastic clamping grooves 32 provided on one side of the stopper body 31. The pair of elastic clamping grooves 32 are detachably and tightly installed on the outer peripheral surface of the injection rod body 21.

[0036] Refer to the attached Figure 6 As shown, insert the injection tube body 11 into the tumor so that the needle-shaped groove 13 of the injection tube body 11 extends into the desired position of the tumor.

[0037] During this process, install the stopper assembly 30 on the injection rod body 21. Since there is no relative movement between the injection tube body 11 and the stopper assembly 30. Therefore, the injection tube body 11 can be accurately inserted into the tumor while preventing drug discharge due to external factors.

[0038] When the injection tube body 11 is completely inserted, remove the stopper assembly 30 from the outer surface of the injection rod body 21. Subsequently, by fixing the injection rod body 21 (i.e., keeping the injection rod body 21 stationary) and moving the injection tube body 11 in the opposite direction (i.e., the injection tube body 11 moves in the direction of the injection rod handle 22), the drug can be evenly injected along the injection path of the injection tube body 11. As the injection tube body 11 continues to move, until the injection tube handle 12 moves to the position of the injection rod handle 22 (refer to the attached Figure 4 and 5 As shown). That is, while the user fixes the injection rod body 21 using the injection rod handle 22, removes the stopper assembly 30, and then moves the injection tube body 11 backward using the injection tube handle 12. Here, moving backward can represent the direction opposite to the insertion direction of the injection tube body 11 into the tumor.

[0039] When the injection tube body 11 moves backward relative to the injection rod body 21, it is equivalent to the injection rod body 21 pushing the tumor drug in the injection tube body 11 towards the bevel 13, transferring the tumor drug contained in the injection tube body 11 into the tumor. It can be understood that, referring to the attached Figure 6 As shown, during the process of the injection tube body 11 gradually moving outward, the drug in the injection tube body 11 also moves synchronously along the injection tube body 11 from the inside of the tumor to the outside of the tumor. In this way, the drug in the injection tube body 11 gradually sprays out from the inside to the outside of the tumor, realizing uniform injection of the drug in the tumor, that is, the drug can be evenly distributed along the moving path of the injection tube body 11 for injection, rather than being intensively injected at a fixed place.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A syringe for facilitating uniform injection of tumor drugs, characterized in that: The syringe comprises a syringe tube assembly, an injection rod assembly and a stopper assembly, wherein the syringe tube assembly comprises a syringe body with openings at both ends, the syringe body being provided with through holes penetrating at both ends, the injection rod assembly comprising an injection rod body and an injection rod handle provided at one end of the injection rod body, the injection rod body being sleeved in the inner cavity of the syringe body and forming a sliding connection with the inner cavity, and being used for discharging the medicine placed in the inner cavity of the syringe body to the outside, the outer diameter of the injection rod handle being larger than the outer diameter of the injection rod body, and the stopper assembly being detachably and fastened to the outer peripheral surface of the injection rod body, and being used for limiting the movement of the syringe body along the injection rod body toward a side adjacent to the injection rod handle.

2. A syringe for facilitating uniform injection of tumor drugs according to claim 1, characterized in that: The stopper assembly comprises a stopper body and a pair of elastic slots arranged on one side of the stopper body. The pair of elastic slots are detachably and fastened on the outer peripheral surface of the injection rod body.

3. A syringe for facilitating uniform injection of tumor drugs according to claim 1 or 2, characterized in that: One end of the syringe body is provided with a syringe handle for easy holding, and the syringe handle is provided with a through hole structure with the same size as the through hole opening in the syringe body.

4. The syringe for facilitating uniform injection of tumor drugs according to claim 1, characterized in that: The outer diameter of the injection rod body is equal to the diameter of the through hole in the injection tube body.

5. The syringe for facilitating uniform injection of tumor drugs according to claim 3, characterized in that: One end of the injection tube body away from the injection tube handle is provided with a groove for easy insertion.

6. The syringe for facilitating uniform injection of tumor drugs according to claim 1, characterized in that: The outer surfaces of the injection rod body and the injection tube body are both provided with scale lines for direct observation by the operator.

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