Intratumoral injection device

Abstract

The invention belongs to the field of medical instruments, and particularly discloses a tumor intratumoral injection device which comprises a body, a shell, supports arranged on the two sides of the bottom of the shell, a fixing frame arranged in the shell and an injector arranged in the fixing frame. The puncture guide mechanism comprises toothed plates arranged on the two sides of the fixing frame and transmission gears arranged in the shell and meshed with the toothed plates. The disinfection auxiliary mechanism comprises a fixing rod arranged in the support and a disinfection and hemostasis assembly arranged between the fixing rod and the shell; the syringe can be fixed through the puncture guide mechanism before puncture, so that a syringe needle is aligned to a to-be-punctured point, the puncture accuracy is improved, the to-be-punctured position can be automatically disinfected through the disinfection auxiliary mechanism before puncture, compression hemostasis is conducted on the punctured position after puncture, operation steps are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments, and in particular relates to a tumor intratumor injection device. Background Art

[0002] Tumor refers to the proliferation of abnormal cells in tissues, which can be benign or malignant. Intratumoral injection is a method of treating tumors by directly injecting drugs or other therapeutic substances into the tumor. This treatment method can increase the concentration of drugs in tumor tissues, reduce damage to normal tissues, and directly act on tumor cells to improve the treatment effect.

[0003] Intratumoral injections are usually given directly using a syringe.

[0004] However, during the injection process, traditional injection devices are usually used by medical staff to directly inject with a syringe. The puncture position may be shifted due to hand shaking, which may lead to incorrect positioning. At the same time, medical staff are required to manually disinfect the puncture site during the puncture process and apply pressure to stop bleeding after puncture. The operation steps are relatively cumbersome and not conducive to operation. Summary of the invention

[0005] The purpose of the present invention is to provide a tumor intratumor injection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A tumor intratumor injection device comprises a main body, a shell, brackets arranged on both sides of the bottom of the shell, a fixing frame arranged in the shell, and a syringe arranged in the fixing frame; a puncture guide mechanism, comprising tooth plates arranged on both sides of the fixing frame, and a transmission gear arranged in the shell and meshing with the tooth plates; and a disinfection auxiliary mechanism, comprising a fixing rod arranged in the bracket, and a disinfection hemostasis component arranged between the fixing rod and the shell.

[0008] Preferably, a limiting bolt is threadedly provided on the fixing frame, and a suction cup is provided at the bottom of the bracket.

[0009] Preferably, a fixing seat is provided at the front end of the fixing rod, an axial rod is provided inside the fixing seat, a clamping plate is provided on the axial rod, a movable block is movably installed between the clamping plates through a connecting rod, a spring is provided between the movable block and the fixing seat, and a pull rope is provided between the movable blocks and passes through the fixing rod.

[0010] Preferably, the disinfection and hemostasis assembly includes a hemostasis switching member arranged between the fixed rod and the transmission gear, and a uniform disinfection member arranged between the transmission gear and the fixed rod.

[0011] Preferably, the hemostasis switching member includes a sleeve arranged on the periphery of the fixed rod, an intermittent bevel gear arranged on the transmission gear, a bevel gear 1 arranged in the shell and meshing with the intermittent bevel gear, and a rotating shaft arranged between the bevel gear 1 and the sleeve.

[0012] Preferably, the uniform disinfection component includes a first gear arranged on the transmission gear, a second gear arranged in the shell, a bevel gear 2 arranged on the second gear, a bevel gear 3 arranged in the shell and meshing with the bevel gear 2, and a transmission belt arranged between the bevel gear 3 and the fixed rod.

[0013] Preferably, a tension block is arranged on the periphery of the transmission belt, a bearing seat is arranged between the tension block and the bracket, and a torsion spring is arranged between the tension block and the bracket.

[0014] Preferably, the uniform disinfection element is located in the housing on one side of the syringe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention can limit the syringe on the patient's body before puncture through the puncture guide mechanism, so that the syringe needle is aligned with the puncture point to improve the puncture accuracy, and can ensure accurate angle and steady speed during puncture to avoid shaking and deviation caused by human hands.

[0017] (2) The present invention can automatically disinfect the puncture site before puncture through the disinfection auxiliary mechanism, and compress the puncture site to stop bleeding after puncture. Medical staff do not need to use tweezers to take alcohol cotton balls and cotton swabs during the puncture and injection process, thereby reducing the number of operating steps, lowering the probability of errors, improving work efficiency, and facilitating use by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 A bottom view of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the disinfection auxiliary mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the local structure of the tension block of the present invention;

[0023] Figure 6 It is a schematic diagram of the local structure of the fixing rod of the present invention.

[0024] In the figure: 1. main body; 101. shell; 102. bracket; 103. suction cup; 104. fixing frame; 105. limiting bolt; 106. syringe; 2. puncture guide mechanism; 201. tooth plate; 202. transmission gear; 3. disinfection auxiliary mechanism; 301. fixing rod; 3011. fixing seat; 3012. shaft rod; 3013. clamping plate; 3014. connecting rod; 3015. movable block; 3016. Spring; 3017, pull rope; 302, hemostasis switching part; 3021, intermittent bevel gear; 3022, bevel gear one; 3023, rotating shaft; 3024, sleeve; 303, uniform disinfection part; 3031, first gear; 3032, second gear; 3033, bevel gear two; 3034, bevel gear three; 3035, transmission belt; 3036, torsion spring; 3037, tensioning block; 3038, bearing seat. DETAILED DESCRIPTION

[0025] 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.

[0026] As attached Figure 1 To Attachment Figure 6 As shown:

[0027] Embodiment 1: The present invention provides a tumor intratumor injection device, comprising a main body 1, including a shell 101, a bracket 102 arranged on both sides of the bottom of the shell 101, a fixing frame 104 arranged in the shell 101, and a syringe 106 arranged in the fixing frame 104; a puncture guide mechanism 2, including a tooth plate 201 arranged on both sides of the fixing frame 104, and a transmission gear 202 arranged in the shell 101 and meshing with the tooth plate 201; and a disinfection auxiliary mechanism 3, including a fixing rod 301 arranged in the bracket 102, and a disinfection and hemostasis component arranged between the fixing rod 301 and the shell 101. The syringe 106 can adopt a traditional syringe or an external electronic injection pump.

[0028] Specifically, a limiting bolt 105 is threadedly provided on the fixing frame 104 , and a suction cup 103 is provided at the bottom of the bracket 102 .

[0029] Specifically, a fixed seat 3011 is provided at the front end of the fixed rod 301, an axle rod 3012 is provided inside the fixed seat 3011, a splint 3013 is provided on the axle rod 3012, a movable block 3015 is movably installed between the splints 3013 through a connecting rod 3014, a spring 3016 is provided between the movable block 3015 and the fixed seat 3011, and a pull rope 3017 is provided between the movable blocks 3015 and passes through the fixed rod 301.

[0030] Specifically, the disinfection and hemostasis assembly includes a hemostasis switching member 302 disposed between the fixed rod 301 and the transmission gear 202 , and a uniform disinfection member 303 disposed between the transmission gear 202 and the fixed rod 301 .

[0031] Specifically, the hemostasis switching member 302 includes a sleeve 3024 arranged on the periphery of the fixed rod 301, an intermittent bevel gear 3021 arranged on the transmission gear 202, a bevel gear 3022 arranged in the shell 101 and meshing with the intermittent bevel gear 3021, and a rotating shaft 3023 arranged between the bevel gear 3022 and the sleeve 3024. The intermittent bevel gear 3021 on one side of the syringe 106 is set to half of the normal bevel gear, and the intermittent bevel gear 3021 on the other side of the syringe 106 is set to one quarter of the normal bevel gear.

[0032] As can be seen from the above, when in use, the device can be placed on the affected area to be punctured, and the suction cup 103 can be used to fix the device on the patient's body, and then the syringe 106 can be placed in the fixing frame 104, and its position can be limited by the limiting bolt 105 to ensure stability, and then the syringe 106 can be pressed downward. During the movement of the syringe 106, the tooth plate 201 will mesh with the transmission gear 202, thereby driving the transmission gear 202 to rotate. The transmission gear 202 can be used to limit and guide the movement direction of the syringe 106, thereby improving the stability and accuracy of the movement, ensuring accurate puncture into the tumor, and performing the intratumoral injection operation without being affected by hand shaking. After the puncture is completed, the liquid medicine can be injected into the tumor for treatment;

[0033] Before the puncture injection, pull the pull rope 3017 to pull the movable block 3015 to move to the outside of the device, and then drive the splint 3013 to rotate around the shaft 3012 through the connecting rod 3014, so that the two splints 3013 are opened synchronously, and the alcohol cotton ball and the clean cotton ball are placed on the two fixed rods 301 respectively. After loosening the pull rope 3017, the spring 3016 will use its own elasticity to push the movable block 3015 back to its original position due to the disappearance of the tension, so that the splint 3013 rotates in the initial direction, and then clamps and fixes the alcohol cotton ball and the clean cotton ball respectively. The clamping and releasing operations of the two sets of clips can be performed synchronously. After the device is placed on the patient's body, the alcohol cotton ball will be placed on the patient's puncture site to disinfect the patient before puncture. When the medical staff presses the syringe 106 downward to perform the puncture, the transmission gear 202 will drive the intermittent bevel gear 3021 to rotate, and then drive the bevel gear 1 3022 to rotate synchronously. When the bevel gear 1 3022 rotates, it will drive the fixed rod 301 to swing through the rotating shaft 3023. While applying disinfection to the affected area on a large scale, the disinfectant cotton ball is staggered with the puncture site to facilitate the puncture operation of the needle of the syringe 106;

[0034] When the fixed rod 301 holding the sterilized cotton ball swings and is offset from the puncture site, another set of bevel gears 1 3022 will pre-engage with the intermittent bevel gear 3021 to drive the fixed rod 301 holding the clean cotton ball to swing in the opposite direction, so that it moves toward the puncture site. When the clean cotton ball moves to the puncture site, the intermittent bevel gear 3021 will stop meshing with the bevel gear 1 3022, and then when the syringe 106 continues to move downward for puncture, the clean cotton ball will remain motionless. The clean cotton ball will move to the puncture site before the needle contacts the skin, and then after the puncture injection is completed, the clean cotton ball will be pulled out so that the needle is separated from the patient's body and still remain at the puncture site, and then the clean cotton ball can be used to compress the wound to stop bleeding and protect the wound at the same time. The skin can be automatically disinfected before injection treatment and compression to stop bleeding can be automatically performed after injection treatment, thereby reducing the operating steps of medical staff, improving work efficiency and reducing labor intensity.

[0035] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the uniform disinfection component 303 includes a first gear 3031 arranged on the transmission gear 202, a second gear 3032 arranged in the shell 101, a bevel gear 2 3033 arranged on the second gear 3032, a bevel gear 3 3034 arranged in the shell 101 and meshing with the bevel gear 2 3033, and a transmission belt 3035 arranged between the bevel gear 3 3034 and the fixed rod 301.

[0036] Specifically, a tension block 3037 is disposed on the periphery of the transmission belt 3035 , a bearing seat 3038 is disposed between the tension block 3037 and the bracket 102 , and a torsion spring 3036 is disposed between the tension block 3037 and the bracket 102 .

[0037] Specifically, the uniform disinfection member 303 is located in the housing 101 on one side of the syringe 106 .

[0038] As can be seen from the above, by setting the intermittent bevel gear 3021, when the syringe 106 moves downward to drive the transmission gear 202 to rotate, it will not immediately drive the fixed rod 301 to swing. At this time, the transmission gear 202 will drive the first gear 3031 to rotate, and then drive the second gear 3032 to rotate. The second gear 3032 will transmit power to the transmission belt 3035 through the meshing of the bevel gear 2 3033 and the bevel gear 3 3034. The transmission belt 3035 will transmit power to the fixed rod 301, thereby driving the alcohol cotton ball on it to rotate through the fixed rod 301, so as to rotate and apply the alcohol to the puncture site, so that the alcohol is applied more evenly, and the amount of alcohol applied is guaranteed to meet the requirements, thereby improving the disinfection effect;

[0039] When the fixed rod 301 swings, the transmission belt 3035 will bend. Because the bending of the transmission belt 3035 will make it tighter, the torsion spring 3036 will drive the tensioning block 3037 to rotate according to the pressure change of the transmission belt 3035 to compensate for the transmission belt 3035, so that the transmission belt 3035 will not become tighter or looser due to the swing of the fixed rod 301, thereby extending its service life.

[0040] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0045] In the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tumor intratumor injection device, characterized in that: include, The main body (1) comprises a shell (101), brackets (102) arranged on both sides of the bottom of the shell (101), a fixing frame (104) arranged in the shell (101), and a syringe (106) arranged in the fixing frame (104); The puncture guide mechanism (2) comprises tooth plates (201) arranged on both sides of the fixing frame (104), and a transmission gear (202) arranged in the housing (101) and meshing with the tooth plates (201); and, The disinfection auxiliary mechanism (3) comprises a fixing rod (301) arranged in the bracket (102), and a disinfection hemostasis component arranged between the fixing rod (301) and the housing (101).

2. The intratumor injection device according to claim 1, characterized in that: A limiting bolt (105) is threadedly arranged on the fixing frame (104), and a suction cup (103) is arranged at the bottom of the bracket (102).

3. The intratumor injection device according to claim 1, characterized in that: A fixing seat (3011) is arranged at the front end of the fixing rod (301), a shaft rod (3012) is arranged inside the fixing seat (3011), a clamping plate (3013) is arranged on the clamping plate (3012), a movable block (3015) is movably installed between the clamping plates (3013) via a connecting rod (3014), a spring (3016) is arranged between the movable block (3015) and the fixing seat (3011), and a pull rope (3017) is arranged between the movable blocks (3015) and passes through the fixing rod (301).

4. The intratumor injection device according to claim 1, characterized in that: The disinfection and hemostasis assembly comprises a hemostasis switching member (302) arranged between the fixing rod (301) and the transmission gear (202), and a uniform disinfection member (303) arranged between the transmission gear (202) and the fixing rod (301).

5. The intratumor injection device according to claim 4, characterized in that: The hemostasis switching member (302) comprises a sleeve (3024) arranged on the periphery of the fixing rod (301), an intermittent bevel gear (3021) arranged on the transmission gear (202), a bevel gear 1 (3022) arranged in the housing (101) and meshing with the intermittent bevel gear (3021), and a rotating shaft (3023) arranged between the bevel gear 1 (3022) and the sleeve (3024).

6. The intratumor injection device according to claim 4, characterized in that: The uniform disinfection component (303) comprises a first gear (3031) arranged on the transmission gear (202), a second gear (3032) arranged in the housing (101), a second bevel gear (3033) arranged on the second gear (3032), a third bevel gear (3034) arranged in the housing (101) and meshing with the second bevel gear (3033), and a transmission belt (3035) arranged between the third bevel gear (3034) and the fixed rod (301).

7. The intratumor injection device according to claim 6, characterized in that: A tension block (3037) is arranged on the periphery of the transmission belt (3035), a bearing seat (3038) is arranged between the tension block (3037) and the bracket (102), and a torsion spring (3036) is arranged between the tension block (3037) and the bracket (102).

8. The intratumor injection device according to claim 4, characterized in that: The uniform disinfection element (303) is located in the housing (101) on one side of the syringe (106).

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