Integrally installed lumbar puncture outfit

Abstract

The invention discloses an integrated installation lumbar puncture outfit which comprises a sealing ring, a fixing cylinder, an integrated installation assembly and an air pressure adjusting assembly. One side of the sealing ring is configured to be made of a variable material, a viscous layer is arranged on the side of the sealing ring, the side of the sealing ring is attached to the surface of the skin, the fixing cylinder is horizontally arranged and fixed to the side, without the viscous layer, of the sealing ring, and the integrated installation assembly is arranged on the fixing cylinder and used for integrating the puncturing process, the pressure measuring process and the sampling process. The air pressure adjusting assembly is arranged on the cylinder wall of the fixed cylinder; wherein the sealing ring, the fixing cylinder and the skin layer form a closed space, and the air pressure adjusting assembly is used for adjusting the air pressure in the closed space.

Description

Technical Field

[0001] The invention relates to the technical field of lumbar puncture, and in particular to an integrated lumbar puncture device. Background Art

[0002] Clinically, lumbar puncture is a routine bedside diagnostic and treatment procedure in neurosurgery and neurology. It is generally used for laboratory testing of cerebrospinal fluid samples to help diagnose neurological diseases including nervous system infections. During the puncture, cerebrospinal fluid pressure testing and sampling tests are often required to determine whether there is an obstructive disease in the cerebrospinal fluid pathway of the nervous system to assist in clinical diagnosis. It is a relatively common clinical diagnostic and treatment procedure.

[0003] Currently, during the cerebrospinal fluid sampling process, part of the cerebrospinal fluid will be retained in the drainage device, which will cause the loss of this part of the cerebrospinal fluid. Therefore, the excessive outflow of cerebrospinal fluid under the above circumstances can easily cause a decrease in the patient's intracranial pressure.

[0004] Therefore, it is necessary to invent an integrated lumbar puncture device to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides an integrated lumbar puncture device, which solves the problem of excessive loss of cerebrospinal fluid.

[0006] The technical solution adopted by the present invention is: comprising a sealing ring, a fixing tube, an integrated mounting assembly and an air pressure regulating assembly; one side of the sealing ring is configured as a deformable material, and this side is provided with an adhesive layer and attached to the skin surface, the fixing tube is arranged horizontally, and is fixed to the side of the sealing ring without the adhesive layer, the integrated mounting assembly is arranged on the fixing tube, and is used to integrate the puncture, pressure measurement and sampling processes, and the air pressure regulating assembly is arranged on the tube wall of the fixing tube; The sealing ring, the fixing tube and the skin layer form a closed space, and the air pressure regulating component is used to regulate the air pressure in the closed space.

[0007] Further, as a preference, the integrated mounting assembly comprises a storage tube, a liquid guiding tube, a push-pull rod, a sealing block, a puncture needle, a pressure gauge, a sampling tube and a secondary sampling component; the storage tube passes through the center of the plane end of the fixed tube and is fixedly connected to the fixed tube, the right side end of the liquid guiding tube is connected and arranged at the left side end of the storage tube, the push-pull rod is threadedly connected to the center of the right side plane end of the storage tube, the sealing block is rotatably arranged at the left side end of the push-pull rod, and the sealing block is sealingly slidably arranged in the storage tube, the flat head end of the puncture needle is fixed to the center of the right plane end of the sealing block, and the puncture needle passes through the liquid guiding tube, the pressure gauge is connected and arranged on the left side tube wall of the liquid guiding tube, the sampling tube is connected and arranged on the tube wall of the liquid guiding tube, the sampling tube is located on the right side of the pressure gauge, and the sampling tube is arranged in a vertical direction with its open end facing vertically upward, and the secondary sampling component is arranged in the storage tube.

[0008] Further, as a preference, the secondary sampling component includes a connecting block, a gas cylinder 1, a gas cylinder 2 and a flow diverter; the connecting block is fixed on the inner wall of the right end of the liquid guide tube, the gas cylinder 1 is fixed on the connecting block, the gas cylinder 2 is sealingly and slidably arranged in the gas cylinder 1, and the flow diverter is arranged at an end of the gas cylinder 2 away from the gas cylinder 1.

[0009] Further, as a preference, the drain device includes a sliding ring body, an air cylinder three, a sliding column and a blocking block; the right eccentric end of the sliding ring body is fixed to the air cylinder two, the sliding ring body is sealingly slidably arranged in the catheter, and the sliding ring body is provided with a diversion groove in the horizontal direction for diverting cerebrospinal fluid, and a built-in groove is also provided inwardly from the central part of the sliding ring body, the air cylinder three is fixed in the sliding ring body, and the air cylinder three is connected to the air cylinder two, the sliding column is sealingly slidably arranged on the side of the air cylinder three away from the built-in groove, the blocking block is fixed on the end of the sliding column away from the air cylinder three, and the blocking block sealingly slides in the built-in groove.

[0010] Further, as a preference, the air pressure regulating assembly includes an extension tube, a screw, a piston head and a knob; the extension tube is connected and arranged on the wall of the fixed tube, the screw passes through the center of the upper end of the extension tube, and the screw and the extension tube are threadedly connected, the piston head is rotated on one end of the screw and is sealingly slidably arranged in the extension tube, and the knob is fixed on the other end of the screw.

[0011] Further, as a preference, a vent hole 1 is opened on the outer wall of the liquid guide tube, a vent hole 2 is opened on the outer wall 3 of the air cylinder 1, and a conical tube is sealed between the vent hole 1 and the vent hole 2.

[0012] Furthermore, as a preference, an access port is provided on the outer wall of the storage cylinder, which is used to connect the storage cylinder with external disinfection gas.

[0013] Furthermore, as a preference, the fixing tube and the sampling tube are both made of transparent material.

[0014] Further, as a preference, a gasket is sealed and installed between the fixing tube and the storage tube.

[0015] Advantages of the present invention: In the present invention, by using the secondary sampling component and the air pressure regulating component together, when the sampling volume is about to reach the target value, the residual cerebrospinal fluid on the inner wall of the catheter can be scraped and collected by the drainage device to reach the final target value, thereby avoiding the phenomenon of cerebrospinal fluid retention in the catheter and further avoiding the loss of cerebrospinal fluid; In the present invention, after the first sampling, the knob is continuously turned counterclockwise to create a negative pressure in the enclosed space, thereby bulging the skin around the sampling site, so that the cerebrospinal fluid around the sampling site can be sucked into the drainage tube, so as to obtain the target sampling volume.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a half-section diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the secondary sampling component of the present invention; Figure 4 It is an enlarged view of point A of the present invention; Figure 5 is a partial front cross-sectional view of a secondary sampling component of the present invention; Figure 6 is a front cross-sectional view of the flow diverter of the present invention; Figure 7 It is a top sectional view of the flow diverter of the present invention.

[0019] 1. Sealing ring; 2. Fixing cylinder; 3. Integrated mounting assembly; 4. Air pressure regulating assembly; 31. Storage cylinder; 32. Liquid guide tube; 33. Push-pull rod; 34. Sealing block; 35. Needle; 36. Pressure gauge; 37. Sampling tube; 38. Secondary sampling component; 381. Connecting block; 3821. Air cylinder one; 3822. Air cylinder two; 383. Drainage device; 3831. Sliding ring body; 3832. Air cylinder three; 3833. Blocking block; 3834. Sliding column; 3835. Diversion groove; 3836. Built-in groove; 50. Access port; 41. Extension cylinder; 42. Screw; 43. Piston head; 44. Knob; 39. Vent one; 60. Vent two; 61. Conical tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 on the present invention.

[0022] refer to Figures 1 to 7 , an integrated lumbar puncture device, comprising a sealing ring 1, a fixing tube 2, an integrated mounting component 3 and an air pressure regulating component 4; one side of the sealing ring 1 is configured as a deformable material, and this side is provided with an adhesive layer and attached to the skin surface, the fixing tube 2 is horizontally arranged, and is fixed to the side of the sealing ring 1 where the adhesive layer is not provided, the integrated mounting component 3 is arranged on the fixing tube 2, and is used to integrate the puncture, pressure measurement and sampling processes, and the air pressure regulating component 4 is arranged on the tube wall of the fixing tube 2; The sealing ring 1, the fixing tube 2 and the skin layer form a closed space, and the air pressure regulating component 4 is used to regulate the air pressure in the closed space.

[0023] Specifically, see Figure 1 , the sealing ring 1 is sealed and adhered to the periphery of the patient to be punctured, so that a closed space is formed, so that the integrated mounting assembly 3 can stably complete the puncture, pressure measurement and sampling work; Moreover, the closed space formed can prevent external bacteria from entering the puncture site, reducing the risk of cross infection.

[0024] In addition, when installing the sealing ring 1, the air pressure regulating component 4 can make the closed space in a negative pressure state, thereby increasing the adhesion effect of the sealing ring 1 to the skin, so that the integrated installation component 3 can be carried out stably.

[0025] In the present invention, the integrated mounting assembly 3 includes a storage cylinder 31, a liquid guide tube 32, a push-pull rod 33, a sealing block 34, a puncture needle 35, a pressure gauge 36, a sampling tube 37 and a secondary sampling component 38; the storage cylinder 31 passes through the center of the plane end of the fixed cylinder 2 and is fixedly connected to the fixed cylinder 2, the right end of the liquid guide tube 32 is connected to the left end of the storage cylinder 31, the push-pull rod 33 is threadedly connected to the center of the right plane end of the storage cylinder 31, the sealing block 34 is rotatably arranged on the left end of the push-pull rod 33, and The sealing block 34 is sealingly and slidably arranged in the storage tube 31, the flat end of the puncture needle 35 is fixed at the center of the right plane end of the sealing block 34, and the puncture needle 35 is arranged to penetrate the catheter 32, the pressure gauge 36 is connected and arranged on the left wall of the catheter 32, the sampling tube 37 is connected and arranged on the wall of the catheter 32, the sampling tube 37 is located on the right side of the pressure gauge 36, and the sampling tube 37 is arranged in a vertical direction with its open end facing vertically upward, and the secondary sampling component 38 is arranged in the storage tube 31.

[0026] It should be noted that a vent hole 1 is provided on the eccentric side of the right end of the storage tube 31 to prevent a pressure difference between the space between the storage tube 31 and the sealing block 34 and the outside world.

[0027] It should be explained that the puncture process is completed by reciprocating the push-pull rod 33N times.

[0028] Also, see Figure 2 It should be noted that the pushing range of the push-pull rod 33 is 4-6 cm, that is, for an average adult, the puncture depth reaches 4-6 cm, that is, it reaches the subarachnoid space, and the cerebrospinal fluid flows out through the puncture hole.

[0029] Specifically, when puncturing, the fixed tube 2 is installed so that the left end of the catheter 32 is close to the punctured part. After the puncture is completed, the cerebrospinal fluid will immediately enter the catheter 32 and be first measured by the pressure gauge 36, and then flow into the sampling tube 37, forming an integrated process of puncture, pressure measurement and sampling, thereby avoiding the loss of cerebrospinal fluid and further avoiding the reduction of intracranial pressure.

[0030] As a preferred embodiment, the secondary sampling component 38 includes a connecting block 381, a gas cylinder 1 3821, a gas cylinder 2 3822 and a drain 383; the connecting block 381 is fixed on the inner wall of the right end of the liquid guide tube 32, the gas cylinder 1 3821 is fixed on the connecting block 381, the gas cylinder 2 3822 is sealingly and slidably arranged in the gas cylinder 1 3821, and the drain 383 is arranged at one end of the gas cylinder 2 3822 away from the gas cylinder 1 3821.

[0031] That is, see Figure 3 to Figure 4 When the gas cylinder 2 3822 moves in the gas cylinder 1 3821 , it can drive the drainage device 383 to move synchronously in the drainage tube 32 .

[0032] As a preferred embodiment, the drainage device 383 includes a sliding ring body 3831, a gas cylinder 3832, a sliding column 3834 and a blocking block 3833; the right eccentric end of the sliding ring body 3831 is fixed to the gas cylinder 2 3822, the sliding ring body 3831 is sealingly slidably arranged in the drainage tube 32, and the sliding ring body 3831 is provided with a diversion groove 3835 in the horizontal direction for diverting the cerebrospinal fluid, and the central part of the sliding ring body 3831 is inward. A built-in groove 3836 is also provided, and the air cylinder three 3832 is fixed in the sliding ring body 3831, and the air cylinder three 3832 is connected to the air cylinder two 3822, and the sliding column 3834 is slidingly and sealably arranged on the side of the air cylinder three 3832 away from the built-in groove 3836, and the blocking block 3833 is fixed on the end of the sliding column 3834 away from the air cylinder three 3832, and the blocking block 3833 slides seal-ably in the built-in groove 3836.

[0033] That is, when the blocking block 3833 moves in the built-in groove 3836 , it can block or open the diversion groove 3835 .

[0034] It should be explained that after the puncture is completed, the cerebrospinal fluid will enter the catheter 32 along the flow channel 3835 and finally flow into the sampling tube 37.

[0035] As a preferred embodiment, the air pressure regulating assembly 4 includes an extension tube 41, a screw 42, a piston head 43 and a knob 44; the extension tube 41 is connected and arranged on the wall of the fixed tube 2, the screw 42 passes through the center of the upper end of the extension tube 41, and the screw 41 and the extension tube 41 are threadedly connected, the piston head 43 is rotatably mounted on one end of the screw 42 and is sealingly slidably arranged in the extension tube 41, and the knob 44 is fixed on the other end of the screw 42.

[0036] It should be noted that a second air vent is provided at the upper end of the extension tube 41 to prevent a pressure difference between the space between the piston head 43 and the extension tube 41 and the outside world.

[0037] Please note that Figure 2 , turn the knob 44 clockwise, the piston head 43 moves downward, and the air pressure in the closed space increases. Similarly, turn the knob 44 counterclockwise, and the air pressure in the closed space decreases.

[0038] As a preferred embodiment, a vent hole 39 is opened on the outer wall of the liquid guide tube 32, a vent hole 60 is opened on the outer wall of the gas cylinder 3821, and a conical tube 61 is sealed between the vent hole 39 and the vent hole 60.

[0039] That is, when the air pressure in the enclosed space changes, the air pressure in each cylinder changes first; Specifically, see Figures 5 to 7 When sampling is required, first turn the knob 44N times clockwise to increase the air pressure in the closed space. The gas in the closed space first flows through the gas cylinder 1 3821, the gas cylinder 2 3822 to the gas cylinder 3 3832, so that the sliding column 3834 pushes the blocking block 3833 to slide into the built-in groove 3836, so that the guide groove 3835 is opened. When the sliding column 3834 completely enters the built-in groove 3836, under the action of the gas expansion force, the gas cylinder 2 3822 will drive the sliding ring body 3831 to move to the left until the sliding ring body 3831 contacts the skin to be sampled. After that, the cerebrospinal fluid will enter the liquid guide tube 32 along the guide groove 3835, and finally flow into the sampling tube 37; It should be noted that the slide post 3834 is fixed to the edge of one side of the blocking block 3833, so as to prevent the slide post 3834 from interfering with the needle 35 when the blocking block 3833 slides; When the sampling volume in the sampling tube 37 reaches 80% to 85% of the target value, turn the knob counterclockwise 44N turns to reduce the air pressure in the closed space. First, under the action of the gas compression force, the sliding column 3834 pulls the blocking block 3833 out of the built-in groove 3836, so that the diversion groove 3835 is closed. Thereafter, the gas cylinder 3822 will drive the sliding ring 3831 to move to the right, and the residual cerebrospinal fluid on the wall of the catheter 32 will be scraped into the sampling tube 37, so that the sampling volume in the sampling tube 37 reaches the target value. Therefore, through the scraping action of the drain 383, the phenomenon of cerebrospinal fluid retention can be avoided, thereby reducing the loss of cerebrospinal fluid.

[0040] In addition, if the target sampling volume cannot be reached through the above operation, the knob 44 is continuously turned counterclockwise after the first sampling to create a negative pressure in the enclosed space, thereby bulging the skin around the sampling site, causing the cerebrospinal fluid around the sampling site to seep out, and the knob 44 is turned clockwise again to open the flow guide groove 3835. The seeped cerebrospinal fluid will enter the sampling tube 37 along the flow guide groove 3835. Thereafter, the knob 44 is turned counterclockwise to scrape the cerebrospinal fluid on the wall of the fluid guide tube 32 to obtain the target sampling volume.

[0041] As a preferred embodiment, an access port 50 is provided on the outer wall of the storage tube 31, which is used to connect the storage tube 31 with the external sterilizing gas.

[0042] That is to say, when the puncture needle 35 moves toward the puncture site, the disinfectant gas in the storage tube 31 can disinfect the puncture needle 35, the catheter 32 and the surface of the skin to be punctured. On the one hand, it can prevent the sampled cerebrospinal fluid from being contaminated by bacteria, and on the other hand, it can disinfect the surface of the skin to be punctured to avoid wound infection.

[0043] It should be explained that, in the above process, the knob 44 needs to be turned counterclockwise to keep the closed space consistent with the external air pressure.

[0044] Specifically, during implementation, the sealing ring 1 is sealed and installed around the periphery of the puncture, so that the catheter 32 is tightly attached to the patient's skin to form a sealed state, and then the push-pull rod 33 is twisted back and forth, so that the sealing block 34 drives the puncture needle 35 to complete the puncture process, and the cerebrospinal fluid flows into the catheter 32 along the diversion groove 3835, and flows into the sampling tube 37 after being pressure-measured by the pressure gauge 36. This method can avoid the loss of cerebrospinal fluid during the puncture and pressure measurement process. When the amount of liquid stored in the sampling tube 37 reaches 80%~85% of the target value, the drain 383 is closed, and the sampling process is completed. During the stay for a period of time, the drain 383 in the closed state blocks the skin outlet to avoid continuous outflow of cerebrospinal fluid. Thereafter, the drain 383 moves to the right to collect the cerebrospinal fluid remaining in the catheter 32 for a second time to avoid excessive loss of cerebrospinal fluid.

[0045] As a preferred embodiment, the fixing tube 2 and the sampling tube 37 are both made of transparent material, so as to facilitate real-time observation of the values ​​of the pressure gauge 36 and the sampling tube 37 .

[0046] As a preferred embodiment, a gasket is sealed between the fixing tube 2 and the storage tube 31 to prevent the gas in the closed space from leaking out.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated lumbar puncture device, characterized in that: The device comprises a sealing ring (1), a fixing tube (2), an integrated mounting assembly (3) and an air pressure regulating assembly (4); one side of the sealing ring (1) is configured as a deformable material, and this side is provided with an adhesive layer and adhered to the skin surface; the fixing tube (2) is arranged horizontally and fixed to the side of the sealing ring (1) not provided with the adhesive layer; the integrated mounting assembly (3) is arranged on the fixing tube (2) and is used to integrate the puncture, pressure measurement and sampling processes; and the air pressure regulating assembly (4) is arranged on the tube wall of the fixing tube (2); The sealing ring (1), the fixing tube (2) and the skin layer form a closed space, and the air pressure regulating component (4) is used to regulate the air pressure in the closed space.

2. The one-piece mounted lumbar puncture device according to claim 1, characterized in that: The integrated mounting assembly (3) comprises a storage cylinder (31), a liquid guide tube (32), a push-pull rod (33), a sealing block (34), a puncture needle (35), a pressure gauge (36), a sampling tube (37) and a secondary sampling component (38); the storage cylinder (31) passes through the center of the plane end of the fixed cylinder (2) and is fixedly connected to the fixed cylinder (2); the right end of the liquid guide tube (32) is connected to the left end of the storage cylinder (31); the push-pull rod (33) is threadedly connected to the center of the right plane end of the storage cylinder (31); the sealing block (34) is rotatably mounted on the left end of the push-pull rod (33); and The sealing block (34) is sealingly slidably arranged in the storage tube (31); the flat end of the puncture needle (35) is fixed at the center of the right plane end of the sealing block (34), and the puncture needle (35) is arranged to penetrate the catheter (32); the pressure gauge (36) is arranged on the left wall of the catheter (32) in communication; the sampling tube (37) is arranged on the wall of the catheter (32) in communication; the sampling tube (37) is located on the right side of the pressure gauge (36), and the sampling tube (37) is arranged in a vertical direction with its open end facing vertically upward; the secondary sampling component (38) is arranged in the storage tube (31).

3. The one-piece mounted lumbar puncture device according to claim 2, characterized in that: The secondary sampling component (38) comprises a connecting block (381), a gas cylinder 1 (3821), a gas cylinder 2 (3822) and a flow diverter (383); the connecting block (381) is fixed to the inner wall of the right end of the liquid guiding tube (32), the gas cylinder 1 (3821) is fixed to the connecting block (381), the gas cylinder 2 (3822) is sealingly slidably arranged in the gas cylinder 1 (3821), and the flow diverter (383) is arranged at an end of the gas cylinder 2 (3822) away from the gas cylinder 1 (3821).

4. The one-piece mounted lumbar puncture device according to claim 3, characterized in that: The drainage device (383) comprises a sliding ring body (3831), a third air cylinder (3832), a sliding column (3834) and a blocking block (3833); the right eccentric end of the sliding ring body (3831) is fixed to the second air cylinder (3822); the sliding ring body (3831) is sealingly slidably arranged in the drainage tube (32); and the sliding ring body (3831) is provided with a diversion groove (3835) in the horizontal direction for diverting cerebrospinal fluid; the central part of the sliding ring body (3831) is also provided with an inner groove (3835) inwardly. The gas cylinder three (3832) is fixed in the sliding ring body (3831), and the gas cylinder three (3832) is connected with the gas cylinder two (3822), the sliding column (3834) is slidingly and sealingly arranged in the side of the gas cylinder three (3832) away from the built-in groove (3836), the blocking block (3833) is fixed on the end of the sliding column (3834) away from the gas cylinder three (3832), and the blocking block (3833) is sealingly slid in the built-in groove (3836).

5. The one-piece mounted lumbar puncture device according to claim 1, characterized in that: The air pressure regulating assembly (4) comprises an extension tube (41), a screw rod (42), a piston head (43) and a knob (44); the extension tube (41) is connected and arranged on the wall of the fixed tube (2); the screw rod (42) passes through the center of the upper end of the extension tube (41), and the screw rod (41) and the extension tube (41) are threadedly connected; the piston head (43) is rotatably mounted on one end of the screw rod (42) and is sealingly slidably arranged in the extension tube (41); and the knob (44) is fixed to the other end of the screw rod (42).

6. The one-piece mounted lumbar puncture device according to claim 4, characterized in that: A vent hole 1 (39) is provided on the outer wall of the liquid guide tube (32), a vent hole 2 (60) is provided on the outer wall 3 of the gas cylinder 1 (3821), and a conical tube (61) is sealed between the vent hole 1 (39) and the vent hole 2 (60).

7. The one-piece mounted lumbar puncture device according to claim 2, characterized in that: An access port (50) is provided on the outer wall of the storage cylinder (31) and is used to connect the storage cylinder (31) with external sterilizing gas.

8. The one-piece mounted lumbar puncture device according to claim 2, characterized in that: The fixing cylinder (2) and the sampling tube (37) are both made of transparent material.

9. The one-piece mounted lumbar puncture device according to claim 2, characterized in that: A gasket is installed between the fixing tube (2) and the storage tube (31) in a sealing manner.

Images