Syringe booster

Abstract

The utility model provides an injector booster which comprises a propelling device body and a push rod. The propelling device body comprises syringe fixing clamping grooves formed in the two ends of the holding handle and a hollow cylindrical screw sleeve with threads on the inner surface. The push rod penetrates through the screw sleeve, surface threads of the push rod are meshed with threads on the inner surface of the screw sleeve, a bearing seat is arranged at the end, in the propelling device body, of the push rod, a push rod handle is arranged at the other end of the push rod, the push rod is rotationally connected with the bearing seat, and a fixing bayonet is formed in the end, away from the push rod, of the bearing seat and used for fixing an injector core rod. A positioning track is arranged at the bottom of the holding handle, and when the push rod handle is rotated, the bearing seat moves upwards in the holding handle along the positioning track and does not rotate in the circumferential direction; according to the scheme, the problems that when hard tissue is injected, resistance is large, manual injection is not easy to succeed, and the liquid speed and the liquid amount are not easy to control are solved, the structure is simple, and when the booster is used for injecting viscous liquid, the labor intensity of medical staff can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a syringe booster. Background Technology

[0002] Endoscopic mucosal elevation is one of the most crucial steps in EMR (endoscopic mucosal resection) / ESD (endoscopic submucosal dissection). Effective mucosal elevation can significantly reduce complications such as bleeding and perforation. Clinically, this is typically achieved by injecting a saline solution containing indigo carmine and a small amount of adrenaline into the submucosa using an endoscopic syringe, causing the lesion to bulge before performing ESD or EMR.

[0003] Syringes are common medical devices, primarily used to draw or inject liquids using a needle. They are typically available in 5ml, 10ml, or 20ml sizes. Due to the fineness of the needle, injecting liquids requires considerable effort, especially when injecting into harder tissues, making it difficult to manually inject successfully and control the flow and volume of the liquid, resulting in laborious injections. An auxiliary injection device that makes injecting solutions easier would be beneficial, facilitating injection procedures for medical personnel. Furthermore, conventional injection aids generally only propel one type of syringe; when multiple syringe sizes are required for clinical surgery, different aids must be used, which is cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a syringe booster that can be used with various commonly used syringes. It is easy to operate and solves the problems of high resistance when injecting into harder tissues, making it difficult to inject manually and control the liquid speed and volume. The structure is simple and can effectively reduce the labor intensity of medical staff and reduce the force used by medical staff when injecting viscous liquids.

[0005] According to this utility model, a syringe booster includes a main body of a propulsion device and a push rod. The main body of the propulsion device includes a syringe fixing slot and a hollow cylindrical screw sleeve with threads on its inner surface, respectively disposed at both ends of a grip handle. The push rod is disposed through the screw sleeve, and the surface thread of the push rod engages with the thread on the inner surface of the screw sleeve. A bearing seat is provided at one end of the push rod in the main body of the propulsion device, and a push rod handle is provided at the other end. The push rod is rotatably connected to the bearing seat. A fixing slot is provided at the end of the bearing seat away from the push rod, and the fixing slot is used to fix the syringe core rod. A positioning track is provided at the bottom of the grip handle. When the push rod handle is rotated, the bearing seat moves axially upward along the positioning track in the grip handle but does not rotate circumferentially.

[0006] Preferably, the bearing housing has a bearing housing hole, and a bearing is installed in the bearing housing hole. The bearing housing is rotatably connected to the bearing. One end of the push rod is fixedly connected to the bearing. One end of the positioning pin is fixedly connected to the bottom of the bearing housing. The other end of the positioning pin can move back and forth in the positioning track. When the push rod handle is rotated, the positioning pin drives the bearing housing to move axially upward along the positioning track in the grip handle without rotating circumferentially.

[0007] Preferably, the outer diameter of the push rod is smaller than the inner diameter of the bearing seat hole, the inner diameter of the bearing is smaller than the outer diameter of the push rod, and one end of the push rod is fixedly connected to the bearing by a screw.

[0008] Preferably, the positioning track is an elongated positioning groove extending laterally along the bottom of the grip handle.

[0009] Preferably, there are at least two fixing syringe slots, arranged sequentially along one end of the grip handle, with each slot having a different longitudinal distance from the axis of the grip handle.

[0010] Preferably, the main body of the propulsion device includes a grip handle, a fixed syringe slot at both ends, and a screw sleeve, which are integrated into one piece; the grip handle is a semi-cylindrical groove with the same dimensions as the hollow cylinder of the screw sleeve.

[0011] Preferably, the grip handle has multiple elongated grooves.

[0012] The syringe pusher provided by this utility model can be used with various commonly used syringes, is easy to operate, and solves the problems of high resistance when injecting into harder tissues, making it difficult to inject manually and control the liquid speed and volume. It has a simple structure and can effectively reduce the labor intensity of medical staff and reduce the force used by medical staff's hands when injecting viscous liquids. Attached Figure Description

[0013] Figure 1 A schematic diagram of one embodiment of a syringe booster;

[0014] Figure 2 A schematic diagram of another embodiment of the syringe booster;

[0015] Figure 3 A cross-sectional schematic diagram of another embodiment of the syringe booster;

[0016] Figure 4 A schematic diagram of one embodiment of a handle grip;

[0017] Figure 5 A schematic diagram of one embodiment of the push rod;

[0018] Figure 6This is a schematic diagram of one embodiment of a bearing housing. Detailed Implementation

[0019] To facilitate understanding of this application and to make the aforementioned objectives, features, and advantages of this application more apparent, a detailed description of specific embodiments of this application is provided below in conjunction with the accompanying drawings. Numerous specific details are set forth in the following description to provide a thorough understanding of this application, and preferred embodiments are shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. This application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly specified. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise expressly specified. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can also refer to the internal connection between two components.

[0022] For ease of description, in this instruction manual, the end of the handle that is furthest from the operator during use is defined as the far end, or front end, while the end held by the operator is defined as the near end, or rear end. The front and rear ends of the handle are defined as the horizontal direction, and the direction perpendicular to the horizontal direction is defined as the vertical direction.

[0023] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-6As shown, the syringe booster of this embodiment 1 includes a propulsion device body 1 and a push rod 2. The propulsion device body 1 includes a syringe fixing slot 12 respectively disposed at both ends of the grip handle 11 and a hollow cylindrical screw sleeve 13 with threads on its inner surface. The push rod 2 is disposed through the screw sleeve 13, and the surface thread of the push rod 2 engages with the thread on the inner surface of the screw sleeve 13. A bearing seat 3 is provided at one end of the push rod 2 in the propulsion device body 1, and a push rod handle 4 is provided at the other end. The push rod 2 is rotatably connected to the bearing seat 3 and fixedly connected to the push rod handle 4. A fixing slot 32 is provided at the end of the bearing seat 3 away from the push rod 2, which is used to fix the syringe core rod. A positioning track 111 is provided at the bottom of the grip handle 11. When the push rod handle 4 is rotated, the bearing seat 3 moves axially upward along the positioning track 111 in the grip handle 11 but does not rotate circumferentially.

[0025] This is one of the most basic implementation schemes of this utility model. During endoscopic gastrointestinal mucosal prolapse surgery, the endoscopic injection needle, in its retracted state, reaches the mucosal lesion site through the endoscope. The injection needle handle is pushed to insert the injection needle tip into the submucosa of the gastrointestinal tract. Next, a pre-filled syringe containing prolapse gel is prepared and inserted into the syringe holder 12 of the syringe pusher in this embodiment 1. The rolled edge of the syringe used for pushing the injection is placed in the syringe holder 12 to ensure stability during injection. Then, the syringe core is pushed into the fixing slot 32. The plunger 2 is readjusted to ensure a tight connection between the syringe plunger and the pre-filled syringe. Then, the stopcock at the distal end of the pre-filled syringe is opened, and the Luer locking connector at the distal end of the syringe is connected to the endoscope needle handle, completing the preparation. Finally, the plunger handle 4 is rotated to advance the plunger 2, injecting a suitable volume of liquid through the injection needle into the submucosa of the digestive tract. The injected liquid forms a gel pad of a certain thickness at the appropriate location, completing the injection. The other end of the plunger 2 is fixedly connected to the plunger handle 4, facilitating injection. Furthermore, the plunger 2 is inserted through the screw sleeve 13, and the surface thread of the plunger 2 engages with the inner thread of the screw sleeve 13. Different thread thicknesses can be selected to create syringe plungers with varying control ratios and precision.

[0026] like Figures 1-6As shown, the syringe booster of this embodiment 2 includes a propulsion device body 1 and a push rod 2. The propulsion device body 1 includes a syringe fixing slot 12 respectively disposed at both ends of the grip handle 11 and a hollow cylindrical screw sleeve 13 with threads on its inner surface. The push rod 2 is disposed through the screw sleeve 13, and the surface thread of the push rod 2 engages with the thread on the inner surface of the screw sleeve 13. A bearing seat 3 is provided at one end of the push rod 2 inside the propulsion device body 1. The bearing seat 3 has a bearing seat hole 31, and a bearing 5 is disposed in the bearing seat hole 31. The bearing seat 3 is rotatably connected to the bearing 5. One end of rod 2 is fixedly connected to bearing 5, and the other end is provided with push rod handle 4. Push rod 2 is fixedly connected to push rod handle 4. The end of bearing seat 3 away from push rod 2 is provided with fixing slot 32, which is used to fix syringe core rod. The bottom of grip handle 11 is provided with positioning track 111. One end of positioning pin 7 is fixedly connected to the bottom of bearing seat 3. The other end of positioning pin 7 can move back and forth in positioning track 111. When push rod handle 4 is rotated, positioning pin 7 drives bearing seat 3 to move axially upward along positioning track 111 in grip handle 11 without rotating circumferentially. A bearing 5 connects the bearing housing 3 and the push rod 2. When the push rod handle 4 is rotated, the force in the rotational direction is converted into a linear force in the push rod 2, ensuring stable injection and uniform force distribution. One end of the positioning pin 7 is fixedly connected to the bottom of the bearing housing 5, and the other end is located in the positioning track 111. When the handle 4 is rotated, the bearing housing 3 will not rotate with the push rod 2. Instead, the bearing housing 3 moves stably circumferentially within the grip handle 11 along the direction of the positioning track 111 due to the rotation of the push rod 2. More specifically, the outer diameter of the push rod 2 is smaller than the inner diameter of the bearing housing hole 31, and the inner diameter of the bearing 5 is smaller than the outer diameter of the push rod 2. One end of the push rod 2 is fixedly connected to the bearing 5 by a screw 6, ensuring the booster's injection propulsion function and making the injection more stable. Specifically, the positioning track 111 is a long strip-shaped positioning groove extending laterally along the bottom of the grip handle 11, which has a simple structure, is easy to manufacture, and meets functional requirements.

[0027] More specifically, at least two syringe holder slots 12 are arranged sequentially along one end of the grip handle 11, with each slot having a different longitudinal distance from the axis of the grip handle 11. The use of slots 12 of different sizes allows for adaptation to various syringe specifications, broadening its applicability. The main body 1 of the propulsion device comprises the grip handle 11, the syringe holder slots 12 at both ends, and the screw sleeve 13, all integrated into one piece. The grip handle 11 is a semi-cylindrical groove with the same dimensions as the hollow cylinder of the screw sleeve 13. The smooth inner surface of the groove reduces friction and resistance, facilitating injection. The integrated design also improves stability and grip during use, simplifies the structure, facilitates sterilization, and enhances durability. The grip handle 11 features multiple elongated slots, making it lightweight, easy to manufacture, inexpensive, and effortless to operate.

[0028] The syringe booster provided by the utility model can be used with various commonly used syringes, making it easy to operate. It also solves the problems of high resistance when injecting into harder tissues, making it difficult to inject manually and control the liquid speed and volume. The structure is simple, and when using this booster to inject viscous liquids, it can effectively reduce the labor intensity of medical staff and reduce the force exerted by their hands.

[0029] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the invention. Therefore, it is intended that this invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A syringe booster, characterized in that, The device includes a propulsion device body (1) and a push rod (2). The propulsion device body (1) includes a fixed syringe slot (12) and a hollow cylindrical screw sleeve (13) with threads on its inner surface, respectively set at both ends of the grip handle (11). The push rod (2) is installed through the screw sleeve (13), and the surface thread of the push rod (2) is engaged with the thread on the inner surface of the screw sleeve (13). One end of the push rod (2) is provided with a bearing seat (3) in the propulsion device body (1), and the other end is provided with a push rod handle (4). The push rod (2) is rotatably connected to the bearing seat (3). The end of the bearing seat (3) away from the push rod (2) is provided with a fixing slot (32), which is used to fix the syringe core rod. The bottom of the grip handle (11) is provided with a positioning track (111). When the push rod handle (4) is rotated, the bearing seat (3) moves axially upward along the positioning track (111) in the grip handle (11) without rotating circumferentially.

2. The syringe booster as described in claim 1, characterized in that: The bearing seat (3) is provided with a bearing seat hole (31), and a bearing (5) is provided in the bearing seat hole (31). The bearing seat (3) is rotatably connected to the bearing (5). One end of the push rod (2) is fixedly connected to the bearing (5). One end of the positioning pin (7) is fixedly connected to the bottom of the bearing seat (3). The other end of the positioning pin (7) can move back and forth in the positioning track (111). When the push rod handle (4) is rotated, the positioning pin (7) drives the bearing seat (3) to move axially upward along the positioning track (111) in the grip handle (11) without rotating circumferentially.

3. The syringe booster as described in claim 2, characterized in that: The outer diameter of the push rod (2) is smaller than the inner diameter of the bearing seat hole (31), the inner diameter of the bearing (5) is smaller than the outer diameter of the push rod (2), and one end of the push rod (2) is fixedly connected to the bearing (5) by a screw (6).

4. The syringe booster as described in claim 3, characterized in that: The positioning track (111) is a long strip-shaped positioning groove that extends laterally along the bottom of the grip handle (11).

5. The syringe booster as described in claim 1, characterized in that: The fixed syringe slots (12) are at least two, arranged sequentially along one end of the grip handle (11), and each slot is located at a different distance from the axis of the grip handle (11) in the longitudinal direction.

6. The syringe booster as described in claim 4, characterized in that: The main body (1) of the propulsion device includes a grip handle (11), a fixed syringe slot (12) at both ends, and a screw sleeve (13) that are integrated into one piece; the grip handle (11) is a semi-cylindrical slot with the same size as the hollow cylinder of the screw sleeve (13).

7. The syringe booster as described in claim 6, characterized in that: The grip handle (11) is provided with multiple elongated grooves.

Images