CN112773478A - Continuous nerve block catheter delivery system and method - Google Patents
Continuous nerve block catheter delivery system and method Download PDFInfo
- Publication number
- CN112773478A CN112773478A CN202110178214.8A CN202110178214A CN112773478A CN 112773478 A CN112773478 A CN 112773478A CN 202110178214 A CN202110178214 A CN 202110178214A CN 112773478 A CN112773478 A CN 112773478A
- Authority
- CN
- China
- Prior art keywords
- catheter
- needle
- continuous nerve
- nerve block
- conveyor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Anesthesiology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical instruments and discloses a continuous nerve block catheter conveying system which comprises a hollow puncture needle and a conveyor, wherein a handle is arranged at one end of the puncture needle, which is far away from the needle point, a hollow connector is fixedly connected to one side of the handle, which is far away from the needle point of the puncture needle, a connecting needle is sleeved in the connector, a conveyor is fixedly connected to one end of the connecting needle, which is far away from the connector, a conveying sheath pipe is sleeved at one end of the conveyor, a continuous nerve block catheter is sleeved in the conveying sheath pipe, a through groove is formed in the surface of the conveyor; the invention has simple structure and convenient operation, ensures that the catheter cannot be bent by arranging the conveyor and the conveying sheath, overcomes the difficulty that the catheter cannot be placed because the catheter is soft and easy to bend in the process of placing the catheter by hands, is convenient to place the catheter, improves the speed of placing the catheter, improves the success rate of placing the catheter, can accurately control the depth of placing the catheter, and reduces the risk of the dissection layers required by puncturing the catheter because the used catheter is soft.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a continuous nerve block catheter conveying system and a method.
Background
In the present continuous nerve block, use pjncture needle and continuous nerve block pipe to operate, use the flexible continuous nerve block pipe to put into potential intertissue clearance, if select harder pipe, often pierce through serosa or manadesma easily, the liquid medicine can pour into other levels of dissecting into to lead to the operation failure, because continuous nerve block pipe is extremely soft, the pipe diameter is very thin, lack the holding power, when carrying, bare-handed putting the pipe, bend easily in the space between pjncture needle tail end finger and the needle tail, cause and put the pipe difficulty.
In addition, in the traditional nerve blocking catheter catheterization operation, after the nerve blocking catheter is conveyed into a patient body to reach a certain margin, the nerve blocking catheter is withdrawn and then placed at a preset proper position, the catheterization depth cannot be accurately controlled in the catheterization stage, and the possibility of human tissue damage is increased and the occurrence probability of complications such as bleeding is increased by the withdrawal method after the nerve blocking catheter is placed.
Disclosure of Invention
The invention aims to provide a continuous nerve block catheter conveying device which is convenient to provide the supporting force for the flexible continuous nerve block catheter, so that the flexible continuous nerve block catheter is not easy to bend during conveying, the catheter arranging speed is improved, and the catheter arranging is further convenient to carry according to the defect that the existing flexible continuous nerve block catheter is difficult to arrange due to the fact that the existing flexible continuous nerve block catheter is flexible and lacks the supporting force and is easy to bend during conveying.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a continuous nerve blocking catheter conveying system, includes hollow pjncture needle and tubulose conveyer, the pjncture needle is kept away from needle point one end and is equipped with the handle, the hollow connector of pjncture needle point one side fixedly connected with is kept away from to the handle, the connector cup joints the connecting needle in the connector, the connecting needle is kept away from connector one end fixedly connected with conveyer, the conveyer is kept away from connecting needle one end and has been cup jointed and carry the sheath pipe, the intraductal cup joints continuous nerve blocking catheter of transport sheath, continuous nerve blocking catheter runs through in proper order and carries sheath pipe, conveyer and connecting needle and extend to in the pjncture needle, logical inslot activity has been seted up on the surface of conveyer and has been led the groove.
Preferably, the surface of the conveyor is provided with at least one limiting wire, and the other end of the limiting wire is fixedly connected with the surface of the conveying sheath tube.
Preferably, the surface of the conveyor is provided with an observation hole, the surface of the continuous nerve block catheter is provided with a colored annular mark, and the distance from the colored annular mark to the foremost end of the continuous nerve block catheter is equal to the distance from the observation hole to the needle tip of the puncture needle.
Preferably, the surface of the conveyor and the side opposite to the observation hole are provided with light transmission holes.
Preferably, the surface of conveyer is equipped with the scale, the scale is located conveyer and is close to and carry one section of sheath pipe and be equipped with annular spacing arch on the surface, spacing arch is located the zero scale of scale, the length of carrying the sheath pipe is not more than the side that the connection needle was kept away from to the conveyer according to the pressing block and keeps away from the length of connecting needle one end terminal surface, spacing bellied external diameter is less than the internal diameter of carrying the sheath pipe.
Preferably, the surface of the conveyor is sleeved with a ring sleeve, the surface of the ring sleeve is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the top of the pressing block.
Preferably, a plurality of elastic bulges are arranged on the inner wall of the conveying sheath tube.
Preferably, the side surface of the pressing block facing the continuous nerve block catheter is an arc shape matched with the continuous nerve block catheter, the side surface is an anti-skid surface, and the surface of the outer wall of the conveying sheath tube is the anti-skid surface.
Preferably, the inner wall of one end, close to the connector, of the puncture needle inner cavity and the inner wall of one end, far away from the conveyor, of the conveying sheath pipe are provided with chamfers, and the inner wall of one end, located inside the conveying sheath pipe, of the conveyor is provided with a chamfer.
As another preferred mode, the conveying sheath comprises a first part and a second part which are detachable, the first part and the second part are both semicircular pipes, the first part and the second part are connected in a buckling mode to form the conveying sheath, at least one inward-concave J-shaped sliding groove is formed in the contact surface of the first part and the second part, at least one outward-convex J-shaped fixture block is arranged on the contact surface of the second part and the first part, and the J-shaped fixture block and the J-shaped sliding groove are arranged correspondingly.
The invention also provides a continuous nerve block catheter delivery method, which comprises the following steps:
a. after the puncture needle is punctured, the conveyor 2 is connected with the puncture needle 1 through the connector 4 and the connecting needle 5, and then the conveying sheath tube moves from one end of the conveyor, which is far away from the connecting needle, to the direction of the connecting needle until the end face of one end of the conveying sheath tube, which is far away from the connecting needle, crosses the end face of one end of the conveyor, which is far away from the connecting needle;
b. inserting the continuous nerve block catheter into a conveyor to the position of a pressing block, pressing the pressing block to fix the continuous nerve block catheter according to the length of the continuous nerve block catheter to be conveyed, and moving a conveying sheath to a preset scale;
c. the pressing block is loosened, the conveying catheter is pushed to the zero scale towards the pressing block, one end of the conveying sheath tube facing the pressing block cannot easily cross the zero scale under the obstruction of the annular limiting bulge, and the conveying catheter drives the nerve blocking catheter to synchronously and accurately move to the puncture needle direction by the length of the preset scale due to the clamping effect of the bulge in the conveying sheath tube on the continuous nerve blocking catheter, so that the operation is repeated until the continuous nerve blocking catheter is accurately conveyed to the preset position;
d. simultaneously, observing whether a colored annular mark is arranged on the surface of the continuous nerve block catheter or not through the observation hole;
e. after the continuous nerve block catheter is conveyed to a preset position, the pressing block is pressed, the continuous nerve block catheter is fixed, the conveying sheath catheter is moved towards the pressing block, when one end, facing the pressing block, of the conveying sheath catheter reaches the position of the annular limiting protrusion, the thrust is increased, so that one end, facing the pressing block, of the conveying sheath catheter crosses the annular limiting protrusion to continue moving towards the pressing block until the protrusion in the conveying sheath catheter is completely separated from the continuous nerve block catheter;
f. withdrawing the needle to finish the tube placement.
The continuous nerve block catheter conveying system has the following beneficial effects: the structure is simple, the volume is small, the operation is convenient, the adaptability is strong, the continuous nerve block catheter is tightly wrapped by the conveyor and the conveying sheath catheter, and the supporting force is given, so that the catheter is not bent, and the catheter is convenient to place; the conveying distance of the continuous nerve block catheter can be accurately controlled by matching the conveying sheath with the scales, so that the aim of accurately placing the catheter is fulfilled; after the continuous nerve blocking catheter is conveyed to a preset position, the bulges in the continuous nerve blocking catheter and the conveying sheath are separated by the conveyor, so that the needle can be withdrawn conveniently.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is a cross-sectional view taken along line A-A of the present invention;
fig. 6 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1. puncturing needle; 2. a conveyor; 3. a handle; 4. a connector; 5. a connecting needle; 6. a delivery sheath; 7. a continuous nerve block catheter; 8. a through groove; 9. a pressing block; 10. a bell mouth; 11. sleeving a ring; 12. a connecting rod; 13. a protrusion; 14. chamfering; 15. an annular limiting bulge; 16. an observation hole; 17. a colored ring mark; 18. a light-transmitting hole; 601. a first member; 602. a second component; 603. a J-shaped chute; 604. a J-shaped fixture block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-5, a continuous nerve block catheter delivery system comprises a hollow puncture needle 1 and a tubular conveyor 2, wherein a handle 3 is arranged at one end of the puncture needle 1 away from the needle point, a hollow connector 4 is fixedly connected to one side of the handle 3 away from the needle point of the puncture needle 1, a connecting needle 5 is sleeved in the connector 4, the surface of the connecting needle 5 is movably connected with the inner wall of the connector 4, and a certain friction force is kept between the surface of the connecting needle and the inner wall of the connector 4, so that the connecting needle 5 can be effectively prevented from slipping, and further the conveyor 2 can be prevented from slipping, one end of the connecting needle 5 away from the connector 4 is fixedly connected with one end of the conveyor 2, the other end of the conveyor 2 is sleeved with a conveying sheath tube 6, the conveying sheath tube 6 is slidably connected with the conveyor 2, a continuous nerve block catheter 7 is sleeved in the conveying sheath tube 6, the continuous nerve block catheter 7 is in sliding connection with the conveying sheath 6, the conveyor 2, the connecting needle 5 and the puncture needle 1, a through groove 8 is formed in the surface of the conveyor 2, and a pressing block 9 is movably arranged in the through groove 8.
In this embodiment, the pressing block 9 keeps a certain distance from the surface of the continuous nerve blocking catheter 7, the connecting needle 5 and the conveyor 2 are integrally formed, the connecting needle 5 can also be fixedly connected with the conveyor 2 through a threaded connection structure or a hot-melt welding mode, the conveyor 2 and the conveying sheath 6 are both made of hard materials, through the matching of the conveyor 2 and the conveying sheath 6, the continuous nerve blocking catheter 7 slides inside the conveyor 2 and the conveying sheath 6, the conveyor 2 and the conveying sheath 6 tightly wrap the continuous nerve blocking catheter 7, and support force is given to the continuous nerve blocking catheter 7, so that the continuous nerve blocking catheter 7 is not easy to bend, and the flexible continuous nerve blocking catheter 7 is convenient to be conveyed into the puncture needle 1 and further conveyed into the body of a patient, and the catheter is convenient to place.
Specifically, the surface of the conveyor 2 is provided with at least one limiting wire 10, and the other end of the limiting wire 10 is fixedly connected with the surface of the conveying sheath 6.
In this embodiment, when spacing line 10 straightened, conveying sheath pipe 6 still cup jointed and kept away from connecting needle 5 one end at conveyer 2 towards pressing 9 one end of piece, through setting up spacing line 10, is convenient for carry sheath pipe 6 spacing, avoids it to break away from with conveyer 2.
Specifically, a ring sleeve 11 is sleeved on the surface of the conveyor 2, a connecting rod 12 is fixedly connected to the surface of the ring sleeve 11, and the other end of the connecting rod 12 is fixedly connected with the top of the pressing block 9.
In this embodiment, the ring sleeve 11 and the connecting rod 12 facilitate fixing the pressing block 9.
Specifically, the surface of the conveyor 2 is provided with an observation hole 16, the surface of the continuous nerve block catheter 7 is provided with a colored annular mark 17, and the distance from the colored annular mark 17 to the foremost end of the continuous nerve block catheter 7 is equal to the distance from the observation hole 16 to the needle point of the puncture needle 1.
In this embodiment, the observation hole 16 is located between the surface of the conveyor 2, the ring sleeve 11 and the connecting needle 5, the width of the colored mark ring 17 is not smaller than the diameter of the observation hole or the light transmission hole, the color of the colored mark ring 17 is a bright color, such as scarlet, bright orange, golden yellow, emerald, etc., whether the colored mark ring 17 is on the surface of the continuous nerve block catheter 7 can be checked in real time by arranging the observation hole 16, and when the colored ring mark 17 is observed in the observation hole 16, that is, when the colored ring mark 17 is located at the observation hole 16, the front end of the continuous nerve block catheter 7 is exactly flush with the front end of the needle tip of the puncture needle 1.
Specifically, the surface of the conveyor 2, on the side opposite to the observation hole 16, may be further provided with a light-transmitting hole 18.
In this embodiment, the observation hole 16 and the light hole 18 are symmetrically arranged with the center line of the conveyor 2 as the symmetry axis, and the light hole 18 is arranged to enhance the brightness inside the conveyor 2, thereby enhancing the brightness inside the observation hole and facilitating the observation of the colored annular mark 17.
Specifically, the surface of conveyer 2 is equipped with the scale, and the scale is located conveyer 2 and is close to one section on the surface of carrying sheath pipe 6, and the surface of conveyer 2 is equipped with annular spacing arch, and spacing arch 15 is located the zero scale of scale, and the length of carrying sheath pipe 6 is not more than the length that the side of pressing block 9 keeping away from connecting needle 5 keeps away from connecting needle 5 one end terminal surface to conveyer 2, and the external diameter of spacing arch 15 is less than the internal diameter of carrying sheath pipe 6.
In the present embodiment, the outer diameter of the limiting protrusion 15 is two thirds of the inner diameter of the conveying sheath 6, the scale on the surface of the conveyor 2 is millimeter scale, the scale length in this embodiment is 40mm, the scale is zero scale with the limiting protrusion 15 and extends in the direction away from the pressing block 9, the pressing block 9 is pressed, the conveying sheath 6 is pushed to a predetermined scale position, such as 30mm, toward one end of the pressing block 9, after adjustment is completed, the pressing block 9 is released, the end of the conveying sheath 6 toward the pressing block 9 is pushed forward to zero scale, under the obstruction of the annular limiting protrusion 15, one end of the conveying sheath 6 toward the pressing block 9 cannot easily cross the zero scale, due to the clamping effect of the protrusion 13 in the conveying sheath 6 on the continuous nerve block catheter 7, the conveying sheath 6 drives the continuous nerve block catheter 7 to move 30mm toward the puncture needle 1 direction, so as to realize the accurate conveying of the continuous nerve block catheter 7, the depth of the front end of the continuous nerve block catheter sent into the body can be accurately controlled, and the conveying length of the continuous nerve block catheter 7 can be calculated according to the conveying length and conveying times of each time.
Specifically, a plurality of elastic protrusions 13 are arranged on the inner wall of the delivery sheath 6, and the surfaces of the protrusions 13 are in contact with the surface of the continuous nerve block catheter 7 and keep a certain friction force between the protrusions and the surface.
In this embodiment, the frictional force between the surface of the protrusion 13 and the surface of the continuous nerve blocking catheter 7 is smaller than the force for puncturing the pleura, the protrusion 13 is an elastic body, the cross section of the protrusion 13 is triangular or arc-shaped, the protrusion 13 has excellent elasticity and is deformed under stress, so that the conveyor 2 can slide in the conveying sheath 6, the conveying sheath 6 can clamp the continuous nerve blocking catheter 7, and the continuous nerve blocking catheter 7 is clamped by the protrusion 13 in the conveying sheath 6 and can move along with the conveying sheath 6.
Specifically, the side surface of the pressing block 9 facing the continuous nerve block catheter 7 is an arc shape matched with the continuous nerve block catheter 7, the side surface is an anti-skid surface, and the surface of the outer wall of the conveying sheath 6 is an anti-skid surface.
In this embodiment, the outer wall surfaces of the pressing block 9 and the conveying sheath 6 are both provided with anti-slip silica gel or anti-slip lines.
Specifically, the link 12 is an elastic rod.
In this embodiment, the link is shaped like an arc or pi, which facilitates the pressing of the pressing block 9 and the resetting of the pressing block 9 out of contact with the continuous nerve block catheter 7 when the finger is released.
Specifically, chamfers 14 are arranged on one end, close to the connector, of the inner cavity of the puncture needle 1 and on the inner wall of one end, far away from the conveyor 2, of the conveying sheath tube 6, and the inner wall of one end, located inside the conveying sheath tube 6, of the conveyor 2 is provided with the chamfers 14.
In this embodiment, a chamfer 14 is provided to facilitate insertion of the continuous nerve block catheter 7.
The invention also provides a continuous nerve block catheter delivery method, which comprises the following steps:
a. after the puncture needle 1 is punctured, the conveyor 2 is connected with the puncture needle 1 through the connector 4 and the connecting needle 5, and then the conveying sheath tube 6 moves from one end of the conveyor 2, which is far away from the connecting needle 5, to the direction of the connecting needle 5 until the end face of one end of the conveying sheath tube 6, which is far away from the connecting needle 5, crosses the end face of one end of the conveyor 2, which is far away from the connecting needle 5;
b. inserting the continuous nerve block catheter 7 into the conveyor 2 to the position of the pressing block 9, pressing the pressing block 9 according to the length of the continuous nerve block catheter 7 to be conveyed, enabling the pressing block 9 to be in pressing contact with the surface of the continuous nerve block catheter 7, fixing the continuous nerve block catheter 7, and moving one end of the conveying sheath 6, facing the pressing block 9, to a preset scale, such as a 30mm position;
c. the pressing block 9 is loosened, the conveying catheter 6 is pushed to zero scale towards the pressing block 9, one end of the conveying sheath 6 facing the pressing block 9 cannot easily cross the zero scale under the obstruction of the annular limiting bulge 15, due to the clamping effect of the bulge 13 in the conveying sheath 6 on the continuous nerve block catheter 7, the conveying catheter 6 drives the nerve block catheter 7 to synchronously and accurately move to the puncture needle 1 by the length of the preset scale, such as 30mm, and the operation is repeated until the continuous nerve block catheter 7 is accurately conveyed to the preset position;
d. simultaneously, observing whether a colored annular mark 17 is arranged on the surface of the continuous nerve block catheter 7 through the observation hole 16;
e. after the continuous nerve block catheter 7 is conveyed to a preset position, the pressing block 9 is pressed, the continuous nerve block catheter 7 is fixed, the conveying sheath 6 is moved towards the pressing block 9, when one end of the conveying sheath 6 facing the pressing block 9 reaches the position of the annular limiting protrusion 15, the thrust is increased, so that one end of the conveying sheath 6 facing the pressing block 9 crosses the annular limiting protrusion 15 to continue moving towards the pressing block 9 until the protrusion 13 in the conveying sheath 6 is completely separated from the continuous nerve block catheter 7;
f. withdrawing the needle to finish the tube placement.
Example two:
as shown in fig. 6, a continuous nerve block catheter delivery system comprises a hollow puncture needle 1 and a tubular conveyor 2, one end of the conveyor 2, which is far away from the puncture needle 1, is sleeved with a delivery sheath 6, the delivery sheath 6 comprises a first component 601 and a second component 602 which are detachable, both the first component 601 and the second component 602 are semicircular tubes, inner walls of the first component 601 and the second component 602 are respectively provided with a plurality of elastic protrusions 13, the first component 601 and the second component 602 are connected in a snap-fit manner to form the delivery sheath 6, a contact surface between the first component 601 and the second component 602 is provided with at least one inward-recessed J-shaped sliding groove 603, a contact surface between the second component 602 and the first component 601 is provided with at least one outward-protruding J-shaped fixture block 604, the J-shaped fixture block 604 is arranged corresponding to the J-shaped sliding groove 603, the J-shaped fixture block 604 is movably clamped in the J-shaped sliding groove 603, the first component 601 and the second component 602 are connected in the J-shaped sliding groove 603 through the J-shaped fixture block, to realize circumferential closing of the delivery sheath 6; the first member 601 is pushed forward to slide the J-shaped latch 604 out of the J-shaped sliding slot 603, the first member 601 is separated from the second member 602, the delivery sheath 6 is separated into two pieces, and is separated from the continuous nerve block catheter 7, and other structures are the same as those of the first embodiment.
In conclusion, the continuous nerve block catheter conveying system provided by the invention tightly wraps the continuous nerve block catheter through the conveyor and the conveying sheath, and provides supporting force, so that the catheter is not bent, the catheter is convenient to place, the success rate of placing the catheter is improved, and the risk of placing the catheter is reduced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Continuous nerve block catheter delivery system, including hollow pjncture needle (1) and tubulose conveyer (2), characterized by: the utility model discloses a puncture needle, including pjncture needle (1), needle point one end is kept away from in pjncture needle (1) and handle (3), handle (3) are kept away from pjncture needle (1) needle point one side fixedly connected with hollow connector (4), connect needle (5) have been cup jointed in connector (4), the one end fixed connection of connector (4) one end and conveyer (2) is kept away from in connection needle (5), the other end of conveyer (2) has cup jointed transport sheath pipe (6), it has cup jointed continuous nerve blocking pipe (7) in sheath pipe (6), conveyer (2) and connection needle (5) and extend to pjncture needle (1) in proper order to carry nerve blocking pipe (7), logical groove (8) have been seted up on the surface of conveyer (2), it presses piece (9) to lead to groove (8) internalization.
2. The continuous nerve block catheter delivery system of claim 1, wherein: the surface of the conveyor (2) is provided with at least one limiting wire (10), and the other end of the limiting wire (10) is fixedly connected with the surface of the conveying sheath tube (6).
3. The continuous nerve block catheter delivery system of claim 1, wherein: the surface of the conveyor (2) is sleeved with a ring sleeve (11), the surface of the ring sleeve (11) is fixedly connected with a connecting rod (12), and the other end of the connecting rod (12) is fixedly connected with the top of the pressing block (9).
4. The continuous nerve block catheter delivery system of claim 1, wherein: an observation hole (16) is formed in the surface of the conveyor (2), a colored annular mark (17) is arranged on the surface of the continuous nerve block conduit (7), and a light hole (18) is formed in the surface of the conveyor (2) and on the side opposite to the observation hole (16).
5. The continuous nerve block catheter delivery system of claim 1, wherein: the surface of conveyer (2) is equipped with the scale, the scale is located conveyer (2) and is close to one section on the surface of carrying sheath pipe (6), the surface of conveyer (2) is equipped with annular spacing arch (15), spacing arch (15) are located the zero scale of scale, the length of carrying sheath pipe (6) is not more than to keep away from the side of connecting needle (5) to conveyer (2) and keeps away from the length of connecting needle (5) one end terminal surface according to briquetting (9), the external diameter of spacing arch (15) is less than the internal diameter of carrying sheath pipe (6).
6. The continuous nerve block catheter delivery system of claim 1, wherein: the inner wall of the conveying sheath tube (6) is provided with a plurality of elastic bulges (13).
7. The continuous nerve block catheter delivery system of claim 1, wherein: the side surface of the pressing block (9) facing the continuous nerve blocking catheter (7) is arc-shaped and matched with the continuous nerve blocking catheter (7), the side surface is an anti-skid surface, and the surface of the outer wall of the conveying sheath tube (6) is an anti-skid surface.
8. The continuous nerve block catheter delivery system of claim 1, wherein: puncture needle (1) inner chamber is close to connector one end and is kept away from conveyer one end with carrying sheath pipe (6) and all is equipped with chamfer (14), conveyer (2) are located the inside one end of carrying sheath pipe (6) and are equipped with chamfer (14).
9. The continuous nerve block catheter delivery system of claim 1, wherein: the conveying sheath pipe (6) comprises a first component (601) and a second component (602), wherein the first component (601) and the second component (602) are both semicircular pipes, the first component (601) and the second component (602) are connected in a buckling mode to form the conveying sheath pipe (6), at least one inward-concave J-shaped sliding groove (603) is formed in the contact surface of the first component (601) and the second component (602), at least one outward-convex J-shaped clamping block (604) is arranged in the contact surface of the second component (602) and the first component (601), and the J-shaped clamping block (604) and the J-shaped sliding groove (603) are correspondingly arranged.
10. A method of continuous nerve block catheter delivery, comprising: the method comprises the following steps:
a. after the puncture needle (1) punctures, the conveyor 2 is connected with the puncture needle 1 through the connector 4 and the connecting needle 5, and the conveying sheath tube (6) moves from one end of the conveyor (2) far away from the connecting needle (5) to the direction of the connecting needle (5) until the end face of one end of the conveying sheath tube (6) far away from the connecting needle (5) crosses the end face of one end of the conveyor (2) far away from the connecting needle (5);
b. inserting the continuous nerve block catheter (7) into the conveyor (2) to the position of the pressing block (9), pressing the pressing block (9) to fix the continuous nerve block catheter (7) according to the length of the continuous nerve block catheter (7) to be conveyed, and moving the conveying sheath (6) to a preset scale;
c. loosening the pressing block (9), pushing the conveying conduit (6) to zero scale towards the direction of the pressing block (9), driving the nerve block conduit (7) to synchronously and accurately move the preset scale length towards the direction of the puncture needle (1) by the conveying conduit (6), and repeating the operation until accurately conveying the continuous nerve block conduit (7) to a preset position;
d. simultaneously, whether a colored annular mark (17) is arranged on the surface of the continuous nerve block catheter (7) is observed through an observation hole (16);
e. after the continuous nerve block catheter (7) is conveyed to a preset position, the pressing block (9) is pressed, the continuous nerve block catheter (7) is fixed, the conveying sheath (6) moves towards the pressing block (9), when one end, facing the pressing block (9), of the conveying sheath (6) reaches the position of the annular limiting protrusion, the thrust is increased to enable one end, facing the pressing block (9), of the conveying sheath (6) to cross the annular limiting protrusion (15) and continue to move towards the pressing block (9) until the protrusion (13) in the conveying sheath (6) is completely separated from the continuous nerve block catheter (7);
f. withdrawing the needle to finish the tube placement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149875 | 2021-02-03 | ||
| CN2021101498758 | 2021-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112773478A true CN112773478A (en) | 2021-05-11 |
Family
ID=75762190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110178214.8A Pending CN112773478A (en) | 2021-02-03 | 2021-02-08 | Continuous nerve block catheter delivery system and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112773478A (en) |
| WO (1) | WO2022165967A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499128A (en) * | 2021-07-09 | 2021-10-15 | 无锡市第九人民医院 | Nerve block pjncture needle under ultrasonic guidance with outside guiding mechanism |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120059308A1 (en) * | 2010-09-07 | 2012-03-08 | The Washington University | Peripheral nerve block catheter |
| CN104000639B (en) * | 2014-05-26 | 2016-07-06 | 中国人民解放军第二军医大学 | The adjustable nerve block of puncturing head punctures catheter needle |
| CN205612854U (en) * | 2016-03-09 | 2016-10-05 | 复旦大学附属金山医院 | Peripheral neuropathy blocks indwelling catheter in succession |
| CN206792433U (en) * | 2016-12-15 | 2017-12-26 | 杭州启明医疗器械有限公司 | A kind of slidingtype seal wire adjuster and induction system joystick |
| CN209032563U (en) * | 2019-04-23 | 2019-06-28 | 徐旭仲 | A kind of nerve block needle |
| CN211659007U (en) * | 2019-10-24 | 2020-10-13 | 桐乡市第一人民医院 | Continuous plexus blocking kit |
| CN211883978U (en) * | 2020-03-06 | 2020-11-10 | 内江市第一人民医院 | Nerve blocking needle capable of achieving accurate needle insertion |
| CN112006759A (en) * | 2020-09-16 | 2020-12-01 | 中国人民解放军海军军医大学第一附属医院 | Blood vessel sheath pipe mounting, aseptic cover of pipe and subassembly thereof |
-
2021
- 2021-02-08 CN CN202110178214.8A patent/CN112773478A/en active Pending
- 2021-03-31 WO PCT/CN2021/084563 patent/WO2022165967A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499128A (en) * | 2021-07-09 | 2021-10-15 | 无锡市第九人民医院 | Nerve block pjncture needle under ultrasonic guidance with outside guiding mechanism |
| CN113499128B (en) * | 2021-07-09 | 2024-02-23 | 无锡市第九人民医院 | Ultrasonic guided nerve block puncture needle with external guiding mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022165967A1 (en) | 2022-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3583391A (en) | Medical instrument with outrolling catheter | |
| JP5278427B2 (en) | Device for introducing a catheter guide wire into a blood vessel | |
| US20040230204A1 (en) | Flexible connection catheter tunneler and methods for using the same | |
| US8454536B2 (en) | Guide wire advancer assembly and methods for advancing a guide wire | |
| US7128734B1 (en) | Apparatus and method for reverse tunneling a multi-lumen catheter in a patient | |
| JP2002219180A5 (en) | ||
| JPS625626B2 (en) | ||
| CN103596616A (en) | Intravenous catheter and insertion device with reduced blood spatter | |
| EP1894596A3 (en) | Device for introduction of long item | |
| WO2005102436A3 (en) | Dual purpose adapter | |
| EP0865767A3 (en) | Apparatus and method for interstitial laser treatment | |
| CN112773478A (en) | Continuous nerve block catheter delivery system and method | |
| US20050203463A1 (en) | Integral flushing device | |
| US20060116691A1 (en) | Guide insertion device | |
| CA2460327A1 (en) | Catheter and use method thereof | |
| US20040122416A1 (en) | Locking guidewire straightener | |
| CN109700564B (en) | Conveying device and system | |
| CN115054342A (en) | Puncture guide mechanism and puncture needle support sheath system | |
| CN214805211U (en) | Continuous nerve block catheter delivery system | |
| TW201538118A (en) | Treatment instrument for endoscope | |
| WO2005086693A3 (en) | Microsurgical tubing with infusion cannula | |
| CN209808292U (en) | Auxiliary colonoscope entering device for colonoscope | |
| DE60220929D1 (en) | CATHETER FOR PRESSURE MEASUREMENT WITH MULTIPLE CABLES | |
| CN102764143A (en) | Cat-claw puncture biopsy trocar | |
| CN111481303A (en) | Guide skin expanding device and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |