Injector for indocyanine green near-infrared light imaging
By designing adjustment devices and auxiliary devices in the syringe, the problems of syringe push rod position offset and catheter fall off are solved, and the stable injection of indocyanine green near-infrared light dye is achieved, ensuring the stability and safety of the syringe.
Patent Information
- Application Number
- CN202420525392.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-18
AI Technical Summary
When injecting indocinnamic green near-infrared light dye with a syringe, the position shift of the syringe push rod is prone to occur, resulting in the problem of injecting the dye in advance.
A syringe for indocyanine green near-infrared light imaging including an adjustment device and an auxiliary device is designed. The adjustment device realizes the limit fixation of the push rod through components such as elastic blocks, fixing blocks, springs and slots, and the auxiliary device passes through a shrink frame. , inlay ring and elastic ring ensure a stable connection between the catheter and the injection head, avoiding deviation and falling off.
It effectively prevents the position of the push rod and the catheter from falling off, ensures the stability and safety of the syringe, and avoids the risk of early injection of dyes.
Smart Images
Figure CN222286110U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of syringes, in particular to a syringe for indocyanine green near-infrared imaging. Background Art
[0002] When using a syringe, the needle is inserted into the nipple of the syringe at the front end to inject or extract medicine into the human body or medicine bottles, bags, etc. Injection therapy is a way to treat diseases relatively quickly. Injection therapy is mostly done with a syringe and is more common in daily life.
[0003] Prior art includes a utility model with a publication number of CN208003195U, which discloses a medical syringe. The key point of the patented technical solution is to align the hook groove on the rubber plug with the L-shaped hook on the core rod, merge the two, rotate the rubber plug, and clamp the locking rod of the L-shaped hook in the hook groove. At the same time, the protrusion and the groove cooperate to stabilize the L-shaped hook in the hook groove after rotation. The concave and convex surface on the outer side of the rubber plug is clamped with a stirrup, which can further stabilize the rubber plug on the core rod. At the same time, the concave and convex surface can reduce the friction between the rubber plug and the sleeve, making it easier for medical staff. The needle and the connector are threadedly connected, which can make the needle more fixed on the connector.
[0004] The inventors have discovered in daily life that indocyanine green tracing is often used in medical surgery to assist in the localization of tumors during surgery. In the process of injecting the indocyanine green near-infrared dye, the operation needs to be completed through a syringe. In this process, the indocyanine green near-infrared dye is first sucked up through a syringe. In order to avoid the position displacement of the push rod in the syringe body, the indocyanine green near-infrared dye is injected prematurely.
[0005] The present application provides a technical solution to the technical problem, aiming to provide technical personnel in the field with a variety of options for solving the problem. Utility Model Content
[0006] The purpose of the utility model is to solve the problem in the prior art that during the injection of indocyanine green near-infrared dye, the operation needs to be completed through a syringe. During this process, the indocyanine green near-infrared dye is first sucked through the syringe to avoid position deviation of the push rod in the syringe body, thereby causing the indocyanine green near-infrared dye to be injected prematurely.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injector for near-infrared imaging of indocyanine green, comprising an injector body, a push rod movably connected inside the injector body, an injection head fixedly connected to one end of the injector body, a catheter installed on the surface of the injection head, a probe fixedly connected to the end of the catheter away from the injection head, an adjustment device provided on the surface of one end of the injector body close to the push rod, the adjustment device comprising two fixed blocks, the bottom surfaces of the two fixed blocks are evenly fixedly connected to the surface of the injector body, one end of the two fixed blocks is in an arc shape, the side of the two fixed blocks close to each other is slidably connected to the same extrusion block, both sides of the extrusion block are fixedly connected to elastic blocks, the cross-section of the elastic block is in an arc shape, the surface of the elastic block is snap-fitted with the fixed block, a slot is provided on the push rod surface corresponding to the extrusion block, a connecting plate is fixedly connected to the position of the extrusion block on the syringe body surface corresponding to the extrusion block, and the connecting plate and the side of the extrusion block close to each other are fixedly connected to the same spring.
[0008] The effect achieved by the above-mentioned components is: in the process of injecting the indocyanine green near-infrared dye, the operation needs to be completed through a syringe. In this process, the indocyanine green near-infrared dye is first sucked through the syringe. In order to avoid the position displacement of the push rod in the syringe body, causing the indocyanine green near-infrared dye to be injected prematurely, the position of the push rod needs to be fixed and limited. At this time, the elastic blocks at both ends of the fixed block are first squeezed to separate the elastic block from the fixed block. At this time, the extrusion block fixed at one end of the elastic block will be squeezed by the spring, driving the extrusion block to move its position, so that the extrusion block and the card groove opened on the surface of the push rod are clamped and fixed. In the process of injection, the elastic block is pulled to make the elastic block and the fixed block clamped in position, and then the tensile force of the spring is used to extrude and fix, so as to effectively and conveniently lock and limit the entire syringe body.
[0009] Preferably, a telescopic rod is slidably connected to the inner wall of the spring, and two ends of the telescopic rod are fixedly connected to the extrusion block and the connecting plate respectively.
[0010] The effect achieved by the above components is: in the process of operating and using the spring, in order to prevent the spring from undergoing irreversible deformation, the telescopic rod is used for effective protection.
[0011] Preferably, the flared end of the slot is in an arc shape, and the cross-sectional dimension of the slot is matched with the cross-sectional dimension of the extrusion block.
[0012] The effect achieved by the above components is that when the extrusion block and the slot opened on the surface of the push rod are engaged and limited, the expanded end of the slot is in an arc shape, which facilitates better engagement and limiting fixation.
[0013] Preferably, the side walls of the fixed block are each provided with a sliding hole, the inner walls of the sliding hole are slidably connected with a sliding rod, and one end of the sliding rod is fixedly connected to the extrusion block.
[0014] The effect achieved by the above components is that in the process of moving the position of the extrusion block, in order to prevent the position of the extrusion block from being offset, an auxiliary operation is performed by sliding between the slide rod and the slide hole.
[0015] Preferably, an auxiliary device is provided at a position on the surface of the syringe body corresponding to the injection head, and the auxiliary device includes a shrinkage frame, which is an elastic frame, one side of the shrinkage frame is fixedly connected to the syringe body, the inner wall of the shrinkage frame slides through the surface of the injection head, an embedding ring is fixedly connected to the end of the catheter close to the injection head, the surface of the embedding ring is clamped with the inner wall of the shrinkage frame, the inner wall surface of the shrinkage frame abuts against the arc surface of the catheter, and the shrinkage end surface of the shrinkage frame is slidably connected with a ring, which is an elastic ring.
[0016] The effect achieved by the above components is: during the operation and use of the syringe body, in order to facilitate the effective fixation and limitation between the catheter and the injection head to prevent the catheter from falling off, the embedded ring fixed at one end of the catheter is plugged and fixed with the shrinkage frame fixed on the surface of the syringe body, and then the elastic ring and the shrinkage frame are slid and fixed, so that the entire injection head and the catheter can be better limited and the catheter can be prevented from falling off.
[0017] Preferably, the inner wall surface of the shrinking end of the shrinking frame is fixedly connected with a friction pad, and the surface of the friction pad is provided with a plurality of anti-slip grooves.
[0018] The effect achieved by the above components is that when the catheter is squeezed and fixed by the shrinkage frame, the friction pad fixed on the inner wall of the shrinkage frame can effectively increase the friction, so that the catheter and the injection head are fixed more firmly.
[0019] Preferably, the shrinking end surface of the shrinking frame is fixedly connected with a stopper, and the size of the stopper is matched with the size of the ring.
[0020] The effect achieved by the above-mentioned components is that in order to prevent the position of the collar from being shifted during the use of the collar, the collar is effectively protected and fixed by a stopper fixed on the surface of the shrinking end of the shrinking frame.
[0021] In summary, the beneficial effects of the utility model are:
[0022] In the utility model, during the process of injecting the indocyanine green near-infrared dye, the operation needs to be completed through a syringe. During this process, after the indocyanine green near-infrared dye is firstly sucked through the syringe, in order to avoid the position deviation of the push rod in the syringe body, resulting in the early injection of the indocyanine green near-infrared dye, the position of the push rod needs to be fixed and limited. At this time, the elastic blocks at both ends of the fixed block are first squeezed to separate the elastic block from the fixed block. At this time, the squeeze block fixed at one end of the elastic block will be squeezed by the spring, driving the squeeze block to move its position, so that the squeeze block and the card groove provided on the surface of the push rod are clamped and fixed. During the injection process, the elastic block is pulled to clamp the position of the elastic block and the fixed block, and then the tensile force of the spring is used to squeeze and fix, so that the entire syringe body is effectively and conveniently locked and limited. By operating the adjusting device, the position between the syringe body and the push rod is effectively protected to avoid the position deviation of the push rod before use.
[0023] In the utility model, in order to facilitate the effective fixing and limiting of the catheter and the injection head to prevent the catheter from falling off during the operation and use of the syringe body, the embedded ring fixed at one end of the catheter is plugged and fixed with the shrinkage frame fixed on the surface of the syringe body, and then the elastic ring and the shrinkage frame are slid and fixed, so that the entire injection head and the catheter can be better limited and the catheter can be prevented from falling off. By operating the auxiliary device, the catheter and the injection head can be better fixed to prevent the catheter from falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0025] Attached Figure 2 It is a structural schematic diagram of the regulating device of the utility model;
[0026] Attached Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;
[0027] Attached Figure 4 It is a schematic diagram of the auxiliary device structure of the utility model;
[0028] Attached Figure 5 It is an enlarged structural schematic diagram of point B of the utility model.
[0029] The numbers shown in the accompanying drawings are: 1. syringe body; 2. push rod; 3. injection head; 4. adjustment device; 41. fixing block; 42. extrusion block; 43. elastic block; 44. telescopic rod; 45. spring; 46. connecting plate; 47. slide rod; 48. slide hole; 49. slot; 5. auxiliary device; 51. retractable frame; 52. collar; 53. stopper; 54. friction pad; 55. anti-slip pattern; 56. inlay ring; 6. catheter; 7. probe. DETAILED DESCRIPTION
[0030] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
[0031] Reference Figures 1 to 5 As shown, the utility model provides a technical solution: an indocyanine green near-infrared imaging syringe, comprising a syringe body 1 with a push rod 2 movably connected inside, an injection head 3 fixedly connected to one end of the syringe body 1, a catheter 6 installed on the surface of the injection head 3, an end of the catheter 6 away from the injection head 3 is fixedly connected to a probe 7, an adjustment device 4 is provided on the surface of the end of the syringe body 1 close to the push rod 2, and an auxiliary device 5 is provided on the surface of the syringe body 1 corresponding to the injection head 3.
[0032] The specific settings and functions of the adjusting device 4 and the auxiliary device 5 are described in detail below.
[0033] Reference Figure 2 , Figure 3 As shown, in this embodiment: the adjusting device 4 includes two fixed blocks 41, the bottom surfaces of the two fixed blocks 41 are fixedly connected to the surface of the syringe body, one end of the two fixed blocks 41 is in an arc shape, and the two fixed blocks 41 are slidably connected to the same extrusion block 42 on one side close to each other, and elastic blocks 43 are fixedly connected to both sides of the extrusion block 42. The cross-section of the elastic block 43 is in an arc shape, and the surface of the elastic block 43 is snap-fitted with the fixed block 41. A slot 49 is provided on the surface of the push rod 2 corresponding to the position of the extrusion block 42, and the surface of the syringe body 1 corresponds to the extrusion block 4 2 is fixedly connected with a connecting plate 46, and the connecting plate 46 and the extrusion block 42 are fixedly connected with the same spring 45 on one side close to each other. The inner wall of the spring 45 is slidably connected with a telescopic rod 44, and the two ends of the telescopic rod 44 are respectively fixedly connected with the extrusion block 42 and the connecting plate 46. The flared end of the card slot 49 is arc-shaped, and the cross-sectional size of the card slot 49 is adapted to the cross-sectional size of the extrusion block 42. The side walls of the fixed block 41 are all provided with sliding holes 48, and the inner walls of the sliding holes 48 are slidably connected with sliding rods 47, and one end of the sliding rod 47 is fixedly connected with the extrusion block 42.
[0034] Reference Figure 4 , Figure 5 As shown, in this embodiment: the auxiliary device 5 includes a shrinking frame 51, which is an elastic frame, one side of the shrinking frame 51 is fixedly connected to the syringe body 1, the inner wall of the shrinking frame 51 slides through the surface of the injection head 3, and the end of the catheter 6 close to the injection head 3 is fixedly connected with an inlay ring 56, the surface of the inlay ring 56 is snap-fitted with the inner wall of the shrinking frame 51, the inner wall surface of the shrinking frame 51 abuts against the arc surface of the catheter 6, the shrinking end surface of the shrinking frame 51 is slidably connected with a ring 52, the ring 52 is an elastic ring, the shrinking end inner wall surface of the shrinking frame 51 is fixedly connected with a friction pad 54, the surface of the friction pad 54 is provided with a plurality of anti-slip grooves 55, the shrinking end surface of the shrinking frame 51 is fixedly connected with a stopper 53, and the size of the stopper 53 is adapted to the size of the ring 52.
[0035] Detailed description of usage: In the process of injecting the indocyanine green near-infrared dye, the operation needs to be completed through a syringe. In this process, the indocyanine green near-infrared dye is first sucked through the syringe. In order to avoid the displacement of the push rod 2 in the syringe body 1, which causes the indocyanine green near-infrared dye to be injected in advance, the position of the push rod 2 needs to be fixed and limited. At this time, the elastic blocks 43 at both ends of the fixed block 41 are squeezed first to separate the elastic block 43 from the fixed block 41. At this time, the squeezing block 42 fixed at one end of the elastic block 43 will The spring 45 will squeeze the squeezing block 42 to move its position, so that the squeezing block 42 is engaged and fixed with the slot 49 provided on the surface of the push rod 2. During the injection process, the elastic block 43 is pulled to engage the elastic block 43 with the fixing block 41, and then the tensile force of the spring 45 is used to squeeze and fix them, so that the entire syringe body 1 is effectively and conveniently locked and limited. By operating the adjusting device 4, the position between the syringe body 1 and the push rod 2 is effectively protected to avoid the position displacement of the push rod 2 before use.
[0036] During the operation and use of the syringe body 1, in order to facilitate the effective fixation and limitation between the catheter 6 and the injection head 3 to prevent the catheter 6 from falling off, the embedded ring 56 fixed at one end of the catheter 6 is plugged and fixed with the shrinkage frame 51 fixed on the surface of the syringe body 1, and then the elastic ring 52 is slid and fixed with the shrinkage frame 51, so that the entire injection head 3 and the catheter 6 can be better limited and the catheter 6 can be avoided from falling off. By operating the auxiliary device 5, the catheter 6 and the injection head 3 are better fixed to prevent the catheter 6 from falling off.
Claims
1. An indocyanine green near-infrared imaging syringe, comprising a syringe body (1), characterized in that: The syringe body (1) is movably connected to a push rod (2) inside, one end of the syringe body (1) is fixedly connected to an injection head (3), a catheter (6) is installed on the surface of the injection head (3), and the end of the catheter (6) away from the injection head (3) is fixedly connected to a probe (7), and an adjustment device (4) is provided on the surface of one end of the syringe body (1) close to the push rod (2), and the adjustment device (4) includes two fixed blocks (41), the bottom surfaces of the two fixed blocks (41) are evenly fixedly connected to the surface of the syringe body, one end of the two fixed blocks (41) is in an arc shape, and the two fixed blocks (41) are The fixed blocks (41) are slidably connected to the same extrusion block (42) on the sides close to each other, and elastic blocks (43) are fixedly connected to both sides of the extrusion block (42). The cross section of the elastic block (43) is arc-shaped. The surface of the elastic block (43) is snap-fitted with the fixed block (41). A slot (49) is provided on the surface of the push rod (2) at a position corresponding to the extrusion block (42). A connecting plate (46) is fixedly connected to the surface of the syringe body (1) at a position corresponding to the extrusion block (42). The connecting plate (46) and the side close to the extrusion block (42) are fixedly connected to the same spring (45).
2. The syringe for near-infrared imaging of indocyanine green according to claim 1, characterized in that: The inner wall of the spring (45) is slidably connected with a telescopic rod (44), and the two ends of the telescopic rod (44) are respectively fixedly connected to the extrusion block (42) and the connecting plate (46).
3. The syringe for near-infrared imaging of indocyanine green according to claim 1, characterized in that: The expanded end of the clamping groove (49) is in an arc shape, and the cross-sectional dimensions of the clamping groove (49) are compatible with the cross-sectional dimensions of the extrusion block (42).
4. The syringe for indocyanine green near-infrared imaging according to claim 1, characterized in that: The side walls of the fixed block (41) are each provided with a sliding hole (48), the inner wall of the sliding hole (48) is slidably connected with a sliding rod (47), and one end of the sliding rod (47) is fixedly connected to the extrusion block (42).
5. The syringe for indocyanine green near-infrared imaging according to claim 1, characterized in that: An auxiliary device (5) is provided at a position on the surface of the syringe body (1) corresponding to the injection head (3), and the auxiliary device (5) comprises a shrinking frame (51), the shrinking frame (51) is an elastic frame, one side of the shrinking frame (51) is fixedly connected to the syringe body (1), the inner wall of the shrinking frame (51) and the surface of the injection head (3) are slidably penetrated, an inlay ring (56) is fixedly connected to one end of the catheter (6) close to the injection head (3), the surface of the inlay ring (56) is snap-fitted to the inner wall of the shrinking frame (51), the inner wall surface of the shrinking frame (51) is in contact with the arc surface of the catheter (6), and the shrinking end surface of the shrinking frame (51) is slidably connected to a sleeve ring (52), and the sleeve ring (52) is an elastic ring.
6. The syringe for indocyanine green near-infrared imaging according to claim 5, characterized in that: The inner wall surface of the shrinking end of the shrinking frame (51) is fixedly connected with a friction pad (54), and the surface of the friction pad (54) is provided with a plurality of anti-slip grooves (55).
7. The syringe for indocyanine green near-infrared imaging according to claim 5, characterized in that: The shrinking end surface of the shrinking frame (51) is fixedly connected with a stopper (53), and the size of the stopper (53) is matched with the size of the collar (52).