CN214805211U - Continuous nerve block catheter delivery system - Google Patents
Continuous nerve block catheter delivery system Download PDFInfo
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- CN214805211U CN214805211U CN202120350195.8U CN202120350195U CN214805211U CN 214805211 U CN214805211 U CN 214805211U CN 202120350195 U CN202120350195 U CN 202120350195U CN 214805211 U CN214805211 U CN 214805211U
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- conveyor
- catheter
- continuous nerve
- nerve block
- needle
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- 210000005036 nerve Anatomy 0.000 title claims abstract description 87
- 230000000903 blocking effect Effects 0.000 claims description 25
- 230000035515 penetration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 241000579895 Chlorostilbon Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229910052876 emerald Inorganic materials 0.000 description 1
- 239000010976 emerald Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004224 pleura Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本实用新型涉及医用器械技术领域，且公开了连续神经阻滞导管输送系统，包括中空的穿刺针和输送器，穿刺针远离针尖一端设有手柄，手柄远离穿刺针针尖一侧固定连接有中空的连接头，连接头内套接有连接针，连接针远离连接头一端固定连接有输送器，输送器远离连接针一端套接有输送鞘管，输送鞘管内套接有连续神经阻滞导管，输送器的表面开设有通槽，通槽内活动设有按压块；本实用新型结构简单，操作方便，通过设置输送器和输送鞘管，使导管不会弯曲，克服了徒手置管过程中，因导管柔软，易于弯曲，无法置管的困难，便于置管，提高置管速度，提高置管成功率，并且可以精确控制置管深度，且由于使用的导管柔软，降低了置管穿破所需解剖层次的风险。
The utility model relates to the technical field of medical instruments, and discloses a continuous nerve block catheter delivery system, which comprises a hollow puncture needle and a conveyor; A connecting head, a connecting needle is sleeved in the connecting head, a conveyor is fixedly connected at one end of the connecting needle away from the connecting head, a conveying sheath is sleeved at one end of the conveyor away from the connecting needle, and a continuous nerve block catheter is sleeved in the conveying sheath. The surface of the device is provided with a through slot, and a pressing block is movably arranged in the through slot; the utility model has a simple structure and is convenient to operate. The catheter is soft, easy to bend, and difficult to place the catheter, which is convenient for catheterization, improves the speed of catheterization, improves the success rate of catheterization, and can accurately control the depth of catheterization, and because the catheter used is soft, it reduces the need for catheter penetration. Anatomical level of risk.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to continuous nerve block pipe conveying system.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a according to current soft continuous nerve blocking pipe, because soft, lack the holding power, buckle easily when carrying, lead to putting the shortcoming of managing the difficulty, provide one kind and be convenient for give soft continuous nerve blocking pipe holding power, make it be difficult for buckling when carrying, improve and put a tub speed, and then be convenient for put the continuous nerve blocking pipe conveyor of pipe.
In order to achieve the above object, the utility model provides a 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, lead to the inslot activity and be equipped with and press the briquetting, press the overlap joint of surface of blocking catheter with continuous nerve.
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 utility model discloses a continuous nerve block pipe conveying system possesses following beneficial effect: 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 sectional view taken along the 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 conveyor 2 and the connecting needle 5 sequentially penetrate through the conveying sheath tube 6, the conveyor 2 and the connecting needle 5 and extend into the puncture needle 1, 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 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 hole, the color of the colored mark ring 17 is a bright color, such as scarlet, bright orange, golden yellow, emerald, etc., and by arranging the observation hole 16, it is possible to check whether the colored mark ring 17 is located on the surface of the continuous nerve block catheter 7 in real time, and when the colored ring mark is observed in the observation hole, 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 puncture needle tip 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 bulges 13 are arranged on the inner wall of the conveying sheath 6, the surfaces of the bulges 13 are in contact with the surface of the continuous nerve block catheter 7, and a certain friction force is kept between the bulges 13 and the surface of the continuous nerve block catheter 7, and the friction force is smaller than the force for puncturing pleura.
In this embodiment, 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 conveniently, the conveying sheath 6 can clamp the continuous nerve blocking catheter 7 conveniently, 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 utility model discloses a theory of operation does: 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; 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; then the pressing block 9 is loosened, the conveying catheter 6 is pushed to the zero scale towards the pressing block 9, under the obstruction of the annular limiting bulge 15, one end of the conveying sheath catheter 6 facing the pressing block 9 cannot easily cross the zero scale, due to the clamping effect of the bulge 13 in the conveying sheath catheter 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 direction by the length of the preset scale, such as the length of 30mm, and the operation is repeated until the continuous nerve block catheter 7 is accurately conveyed to the preset position; 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; 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; 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 604, 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.
To sum up, the utility model discloses a continuous nerve blocking pipe conveying system closely wraps up continuous nerve blocking pipe through conveyer and transport sheath pipe, gives the holding power, makes the pipe can not buckle, is convenient for put the pipe, has improved and has put the pipe success rate, has reduced and has put the pipe risk.
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 may be made in these embodiments, and that modifications may be made to 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120308499 | 2021-02-03 | ||
| CN2021203084998 | 2021-02-03 |
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| CN214805211U true CN214805211U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773478A (en) * | 2021-02-03 | 2021-05-11 | 中南大学湘雅二医院 | Continuous nerve block catheter delivery system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773478A (en) * | 2021-02-03 | 2021-05-11 | 中南大学湘雅二医院 | Continuous nerve block catheter delivery system and method |
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