CN211357154U

CN211357154U - Regional nerve block indwelling trocar with side hole

Info

Publication number: CN211357154U
Application number: CN201920759088.3U
Authority: CN
Inventors: 倪燕; 马蓉; 龚婵娟
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-08-28
Anticipated expiration: 2029-05-24

Abstract

The utility model belongs to the technical field of the indwelling needle technique and specifically relates to a regional nerve block of taking side opening keeps somewhere trocar, the installation structure comprises a sleeve pipe, sheathed tube inside is provided with drainage channel, drainage channel's inside is provided with the nook closing member, sheathed tube one end is worn out and is provided with the syringe needle to the one end of nook closing member, the sleeve pipe is close to the one end outside of syringe needle and has seted up two side openings, sheathed tube middle part outer wall symmetry closely bonds and has fixed fin, the mounting hole has been seted up on fixed fin's surface, the one end that the syringe needle was kept away from to the sleeve pipe is provided with the hose, the one end that the syringe needle was kept away from to the nook closing member passes the hose, the outer wall of hose closely. The utility model discloses simple structure, convenient to use, side opening can prevent to be blockked up to lead to the liquid medicine to flow smoothly, can carry out sheathed tube fixed through the stationary vane that wherein sets up, can prevent the outflow of liquid medicine when dosing through the sealing plug that wherein sets up.

Description

Regional nerve block indwelling trocar with side hole

Technical Field

The utility model relates to an indwelling needle technical field specifically is a regional nerve block indwelling trocar who takes side opening.

Background

Regional nerve blocks have played an increasing role in perioperative analgesia in surgical patients in recent years. Especially for patients needing analgesia after operation, an indwelling tube is often required to be placed beside a blocked nerve, an external analgesia pump is connected to continuously inject local anesthesia medicine in small dose, the nerve blocking time is prolonged, and the postoperative analgesia effect is prolonged.

The method is characterized in that a venous indwelling needle is placed beside a target nerve or tissue under the guidance of ultrasound, then a needle core is pulled out, a cannula is fixed on the surface of the skin by a film after the cannula is indwelling, and then an analgesic pump is connected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take regional nerve block of side opening to keep somewhere the trocar to the sleeve pipe that proposes takes place to shift easily in solving above-mentioned background art, and keeps somewhere that pipe lumen head end often presses close to the tissue and is blockked up and lead to the smooth scheduling problem of liquid medicine outflow.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a regional nerve block of taking side opening keeps somewhere trocar, includes the sleeve pipe, sheathed tube inside is provided with drainage channel, drainage channel's inside is provided with the nook closing member, sheathed tube one end is worn out and the syringe needle is provided with to the one end of nook closing member, two side openings have been seted up in the one end outside that the sleeve pipe is close to the syringe needle, sheathed tube middle part outer wall symmetry closely bonds and has the fixed fin, the mounting hole has been seted up on the surface of fixed fin, the one end that the syringe needle was kept away from to the sleeve pipe is provided with the hose, the hose is passed to the one end that the syringe needle was kept away from to the nook closing member, the one end that the hose was kept away from to the connecting strip closely bonds and has the sealing plug, the sleeve pipe is close to.

Preferably, the hose is of a trumpet-shaped structure.

Preferably, the sealing plug is in plug-in fit with the outer end of the hose.

Preferably, the drainage channel is slidably connected with the stylet.

Preferably, one end of the extension tube penetrates through the outer wall of the sleeve and is communicated with the drainage channel.

Preferably, the hose is tightly bonded to the sleeve.

Preferably, the fixing tab has a quadrangular structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, convenient to use can prevent through the side opening that wherein sets up that to block up to lead to the liquid medicine to flow smoothly, can carry out sheathed tube fixed through the stationary vane that wherein sets up, can prevent the outflow of liquid medicine when dosing through the sealing plug that wherein sets up, the utility model discloses very big practical value has, the facilitate promotion.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a sleeve; 11. a side hole; 12. a drainage channel; 13. a hose; 131. a connecting strip; 14. a sealing plug; 2. a needle core; 21. a needle head; 3. a securing flap; 31. mounting holes; 4. an extension tube; 5. a luer fitting.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a regional nerve block of taking side opening keeps somewhere trocar, as shown in fig. 1 and fig. 2, including sleeve pipe 1, sleeve pipe 1's inside is provided with drainage channel 12, drainage channel 12's inside is provided with nook closing member 2, drainage channel 12 and nook closing member 2 sliding connection, the one end of nook closing member 2 is worn out sleeve pipe 1's one end and is provided with syringe needle 21, two side openings 11 have been seted up in the one end outside that sleeve pipe 1 is close to syringe needle 21, sleeve pipe 1's middle part outer wall symmetry closely bonds and has fixed fin 3, fixed fin 3 is quadrilateral structure, mounting hole 31 has been seted up on fixed fin 3.

Specifically, stationary vane 3 adopts the polytetrafluoroethylene material to make, and it has fine corrosion resistance, can make stationary vane 3 durable.

As shown in fig. 3, a hose 13 is arranged at one end of the cannula 1 far away from the needle 21, the hose 13 is of a horn-shaped structure, the hose 13 is tightly bonded with the cannula 1, one end of the stylet 2 far away from the needle 21 passes through the hose 13, a connecting strip 131 is tightly bonded on the outer wall of the hose 13, a sealing plug 14 is tightly bonded at one end of the connecting strip 131 far away from the hose 13, the sealing plug 14 is in insertion fit with the outer end of the hose 13, an extension tube 4 is tightly bonded on the outer wall of one end of the cannula 1 near the hose 13, one end of the extension tube 4 penetrates through the outer wall of the cannula 1 and is communicated with the drainage channel 12, and the outer ends of the stylet 2 and the extension tube 4 are both.

The tube 13 is made of a polyurethane foam material, and has a flexible structure, and the sealing plug 14 is inserted into the tube 13 to prevent the outflow of the drug solution during administration.

It is worth to say that the extension tube 4 is made of PPSU, which is an amorphous thermoplastic with high transparency and high hydrolytic stability, and the extension tube 4 is not easily damaged.

When the regional nerve block indwelling trocar with the side hole is used, the sleeve 1 is firstly placed beside a blocked nerve, the indwelling trocar is fixed on the arm or body of a patient by the fixing wing pieces 3, so that the sleeve 1 is kept fixed, the needle core 2 is inserted into the drainage channel 12 and penetrates out from one end of the sleeve 1, the needle head 21 is inserted into the nerve of the patient, the needle core 2 is pulled out, the bell-mouth-shaped hose 13 at the tail end of the sleeve 1 can be automatically contracted and closed along with the pulling-out of the needle core 2, then the external analgesic pump is connected at the outer end of the extension tube 4, so that local anesthetic can be injected continuously in small dose, the nerve block time is prolonged, the postoperative analgesic effect is prolonged, as the accumulated liquid at the position of the sleeve 1 is more, the accumulated liquid can be drained out through the side hole 11, the blockage at one end of the sleeve 1 is avoided to influence the medicine infusion, when the medicine infusion is carried out, the sealing plug 14 is used for plugging the tail part of the cannula 1, so that the liquid medicine can be prevented from flowing out during administration.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a regional nerve block of taking side opening keeps somewhere trocar, includes sleeve pipe (1), its characterized in that: the utility model discloses a needle cannula, including sleeve pipe (1), casing pipe (1), drainage channel (12) inside is provided with nook closing member (2), the one end of nook closing member (2) is worn out sleeve pipe (1) one end and is provided with syringe needle (21), two side openings (11) have been seted up in the one end outside that sleeve pipe (1) is close to syringe needle (21), the middle part outer wall symmetry of sleeve pipe (1) closely bonds and has fixed fin (3), mounting hole (31) have been seted up on the surface of fixed fin (3), the one end that syringe needle (21) were kept away from to sleeve pipe (1) is provided with hose (13), hose (13) is passed to the one end that syringe needle (21) were kept away from to nook closing member (2), the outer wall of hose (13) closely bonds and has connecting strip (131), the one end that hose (13) were kept away from to connecting strip (131) closely bonds and has sealing plug (14), the one end outer, the outer ends of the needle core (2) and the extension tube (4) are connected with luer connectors (5); the hose (13) is of a horn-shaped structure; the sealing plug (14) is in plug-in fit with the outer end of the hose (13).

2. The regional nerve block indwelling trocar with the side hole according to claim 1, wherein: the drainage channel (12) is connected with the needle core (2) in a sliding way.

3. The regional nerve block indwelling trocar with the side hole according to claim 1, wherein: one end of the extension tube (4) penetrates through the outer wall of the sleeve (1) and is communicated with the drainage channel (12).

4. The regional nerve block indwelling trocar with the side hole according to claim 1, wherein: the hose (13) is tightly bonded with the sleeve (1).

5. The regional nerve block indwelling trocar with the side hole according to claim 1, wherein: the fixed wing pieces (3) are of quadrilateral structures.