CN114042226A

CN114042226A - Catheter for anchoring nerve block

Info

Publication number: CN114042226A
Application number: CN202111578650.0A
Authority: CN
Inventors: 胡中华; 余日丽; 廖娟; 张文秀
Original assignee: Third Xiangya Hospital of Central South University
Current assignee: Third Xiangya Hospital of Central South University
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-02-15
Anticipated expiration: 2041-12-22
Also published as: CN114042226B

Abstract

The invention belongs to the technical field of medical instruments, and discloses a catheter for anchoring nerve block, which comprises a tubular main body, wherein a positioning piece is wrapped outside the main body, the positioning piece comprises a fixed block and clamping blocks positioned on two sides of the fixed block, the two clamping blocks are symmetrically arranged relative to the central axis of the fixed block, gaps are respectively arranged on one opposite sides of the two clamping blocks, convex blocks are arranged at the gaps, and the convex blocks are hinged at two ends of the fixed block; the two ends of the fixed block are also provided with limit blocks for limiting the rotation angle of the clamping block; the bottom of fixed block is provided with the sucking disc, and the top of fixed block is provided with the main part and places the position. The invention solves the problems that the prior medical adhesive film has limited adhesive effect, and when a catheter is pulled by external force, the medical adhesive film falls off, so that the catheter loosens, the displacement occurs and the treatment effect is influenced.

Description

Catheter for anchoring nerve block

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a catheter for anchoring nerve block.

Background

Nerve block refers to the injection of local anesthetic around nerve trunk, plexus and node to block the impulse conduction and produce anesthesia in the area, mainly used in postoperative pain, pain during childbirth, cancer pain, etc. When the medical patch is used clinically, puncture is firstly carried out, and after the needle is punctured successfully, the catheter communicated with the needle is stuck to the surface of the skin of a patient by the medical patch to complete fixation. However, in the operation process, because the adhesion effect of the medical adhesive film is limited, when the catheter is pulled by external force, the medical adhesive film can fall off, so that the catheter is loosened and displaced, the treatment effect is affected, and the catheter needs to be punctured and placed again, so that the cost of a patient is increased, and the pain of the patient is increased.

Disclosure of Invention

The invention aims to provide a catheter for anchoring nerve block, which solves the problems that the existing medical adhesive film has limited adhesion effect, and the medical adhesive film falls off when the catheter is pulled by external force, so that the catheter loosens, the catheter moves and the treatment effect is influenced.

In order to achieve the purpose, the invention provides the following technical scheme that the catheter for anchoring the nerve block comprises a tubular main body, wherein a positioning piece is wrapped outside the main body, the positioning piece comprises a fixed block and clamping blocks positioned on two sides of the fixed block, the two clamping blocks are symmetrically arranged relative to the central axis of the fixed block, gaps are formed in one opposite sides of the two clamping blocks, convex blocks are arranged at the gaps, and the convex blocks are hinged to two ends of the fixed block; the two ends of the fixed block are also provided with limit blocks for limiting the rotation angle of the clamping block; the bottom of fixed block is provided with the sucking disc, and the top of fixed block is provided with the main part and places the position.

The technical principle and the beneficial effects of the technical scheme are as follows:

and placing the main body on the fixing block to complete puncture, and then fixing the catheter. When the fixing device is used for fixing, the speaking fixing block is placed on the skin of a patient and is pressed tightly, so that the sucking disc is tightly sucked on the skin of the patient. And the in-process that the fixed block compressed tightly can drive the health position of fixed block both sides and can extrude and press from both sides tight piece for press from both sides tight piece and take place to rotate, and the setting of cooperation stopper can realize pressing from both sides tightly, and then the completion is fixed the pipe on the health of disease.

In conclusion, the technical scheme utilizes the suction cup to fix the main body of the catheter on the body of the patient, so that the fixing effect can be increased, and meanwhile, the clamping and fixing effect can be increased through the clamping of the clamping block. Through the cooperation of sucking disc and the tight piece of clamp, can accomplish closely fixing the main part on the health of disease, compare with prior art only fix through medical pad pasting, can reduce when the main part receives to be dragged, what take place drops to reduce the pipe displacement, reduce the influence to the operation.

Further, the main part is placed the position and is including setting up the standing groove at fixed block top and the locking block that is located the standing groove both sides, and the locking block articulates on the fixed block, and the top outside of locking block offsets with the top of two tight blocks of clamp respectively.

Has the advantages that: the standing groove can be used for placing the main part, and the locking piece that is located both sides can press from both sides the main part tightly, realizes fixing between setting element and the main part, reduces the main part and takes place to remove and the pine takes off. When fixing the fixed block, press from both sides tight piece and can take place to rotate, consequently can move the top of east locking block, realize the rotation of locking block, and then press from both sides the main part tightly.

Furthermore, an elastic piece is arranged between the bottoms of the two locking blocks.

Has the advantages that: the bottom of the locking block is provided with the elastic piece, so that after the use is completed, when the catheter needs to be taken down, the clamping block does not extrude the locking block any more, then the locking block reversely rotates under the action of the elastic piece, the main body is loosened, and the main body is convenient to replace.

Further, the main part includes hose section and the hard tube section of intercommunication each other, and hose section is connected with the syringe needle, and the hard tube section is located the main part and places the position.

Has the advantages that: the main body is arranged into the hose section and the hard pipe section, the hose section can be folded conveniently, then the puncture can be completed conveniently, and the hard pipe section can be connected with the positioning piece conveniently and fixed to the main body.

Further, the fixed block still includes two and runs through the fixed block lower part and extend to the tight pole that supports in the standing groove, supports tight pole sliding connection on the fixed block, and supports the both ends of tight pole and offset with pressing from both sides tight piece and locking block respectively.

Has the advantages that: set up and support the pole, at the in-process of fixed main part, the locking piece can drive and support the pole removal to will press from both sides tight piece and support tightly, thereby can be better fix the main part on patient's health.

Furthermore, one side of the locking block, which is close to each other, is provided with an anti-slip pad.

Has the advantages that: set up the slipmat, can be better compress tightly the main part, realize the fixed of main part, reduce the probability that the main part takes place the displacement.

Further, the clamping block comprises an upper hard section and a lower rubber section.

Has the advantages that: the stereoplasm section can conveniently be connected with the fixed block, and the rubber section can contact with the skin of disease, can improve the comfort level of disease when fixed.

Furthermore, a flow guide channel is arranged in the fixed block, a through hole communicated with the flow guide channel is formed in the sucker, and a one-way valve capable of guiding external air into the through hole is further arranged in the flow guide channel.

Has the advantages that: set up water conservancy diversion passageway and through-hole, can communicate outside and sucking disc, through the setting of check valve, after using the completion, open the check valve, can with the leading-in sucking disc of the gaseous of outside in, realize loosening, the pipe of being convenient for takes off.

Further, the check valve includes the toper bucket, and the path end of toper bucket is equipped with the ball sealer in the toper bucket towards the through-hole, is equipped with the spring between the lateral wall of ball sealer and toper bucket, still is equipped with the actuating lever that the drive ball sealer removed in the mounting, and actuating lever threaded connection is on the fixed block, and the one end of actuating lever offsets with the ball sealer, and the other end of actuating lever is located outside the fixed block.

Has the advantages that: the sealing ball is tightly propped in the conical barrel by the driving rod, so that the conical barrel is sealed, the one-way valve is closed, and the sucking disc can be tightly adsorbed on the skin of a patient. And after the use is accomplished, twist the actuating lever for the actuating lever is not when supporting tight ball sealer, and the effect of cooperation spring can make the ball sealer keep away from the path end of conical barrel, thereby with the gaseous leading-in sucking disc of outside, realize the sucking disc and loosen, thereby conveniently take off the pipe.

Further, the driving rod comprises a pressing section, a sealing section and a thread section which are sequentially arranged from bottom to top, and the diameter of the sealing section is consistent with that of the flow guide channel.

Has the advantages that: the diameter of the sealing section is consistent with that of the flow guide channel, so that when the driving rod abuts against the sealing ball tightly, the sealing section seals the flow guide channel, the sealing effect is further improved, and the sucking effect of the sucking disc can be improved.

Drawings

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention;

fig. 2 is a schematic view of the installation of the suction cup of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a main body 1, a fixing block 2, a clamping block 3, a convex block 4, a limiting block 5, a placing groove 6, a locking block 7, an elastic piece 8, a tight supporting rod 9, a sucking disc 10, a flow guide channel 11, a through hole 12, a first vertical part 13, a second vertical part 14, a transverse part 15, a conical barrel 16, a sealing ball 17, a driving rod 18, a holding block 19, a limiting block 20 and a moving rod 21.

An anchoring nerve block catheter, an embodiment of which is substantially as shown in figure 1, comprises a tubular main body 1 and a positioning member for fixing the main body 1, wherein the main body 1 comprises a hose section connected with a needle and a hard tube section communicated with the hose section. The positioning piece comprises a fixed block 2 and two clamping blocks 3 positioned on the left side and the right side of the fixed block 2, and the two clamping blocks 3 are symmetrically arranged relative to the central axis of the fixed block 2.

The clamping blocks 3 comprise hard sections on the upper portion and rubber sections on the lower portion, gaps are arranged on one sides, opposite to the clamping blocks 3, of the clamping blocks, protruding blocks 4 are arranged at the gaps, and the protruding blocks 4 on the two clamping blocks 3 are hinged to the left side and the right side of the fixing block 2 respectively. The both sides of fixed block 2 all are provided with the stopper 5 that the restriction presss from both sides tight 3 turned angle of piece, set up the concrete position of stopper 5 according to the demand of reality.

The top of fixed block 2 is provided with the position is placed to main part 1, and main part 1 is placed the position including setting up at the standing groove 6 at 2 tops of fixed block and setting up the locking piece 7 in standing groove 6 both sides, and locking piece 7 is the arc, and locking piece 7 articulates on fixed block 2, and one side that locking piece 7 is close to each other is provided with the slipmat. The top of the locking block 7 is respectively abutted against the top of the two clamping blocks 3, so that the top of the locking block 7 can be pressed to move in opposite directions through the rotation of the clamping blocks 3, and the locking of the main body 1 is completed. Be provided with elastic component 8 in the standing groove 6 between the bottom that is located two locking blocks 7, elastic component 8 chooses the pressure spring for use in this embodiment, and concrete model selects according to actual demand. The hard tube section of main part 1 is located standing groove 6, and the bottom of standing groove 6 is the arc, with the cooperation of hard tube section.

Still include two and support tight pole 9, support tight pole 9 and run through the left and right sides of fixed block 2 and extend to in the standing groove 6. The two ends of the abutting rod 9 abut against the bottom of the locking block 7 and the clamping block 3 respectively, and the abutting rod 9 is connected to the fixing block 2 in a transverse sliding mode.

The bottom of fixed block 2 still is provided with a plurality of sucking discs 10, and the quantity of sucking disc 10 sets up according to actual demand, is provided with four sucking discs 10 in this embodiment, and sucking disc 10 is located standing groove 6 department all around respectively. Referring to fig. 2, a flow guide channel 11 is arranged in the fixed block 2, a through hole 12 communicated with the flow guide channel 11 is arranged at the joint of the suction cup 10 and the fixed block 2, the top end of the flow guide channel 11 is communicated with the outside, and the flow guide channel 11 comprises a first vertical part 13, a transverse part 15 and a second vertical part 14 which are sequentially communicated.

Be equipped with the check valve in the first vertical portion 13 of water conservancy diversion passageway 11, the check valve includes conical barrel 16 and the ball sealer 17 that is located conical barrel 16, and conical barrel 16's path end is down, and ball sealer 17 can seal conical barrel 16's path end, is equipped with the spring between ball sealer 17 and conical barrel 16's the lateral wall, and the extension spring is chooseed for use to the spring in this embodiment, and concrete model selects according to actual demand.

Still including running through 2 tops of fixed block and extending to the actuating lever 18 in the first vertical portion 13, actuating lever 18 includes from supreme tight section, the sealed section of supporting and the screw thread section of setting gradually down, supports tight section and can offset with ball sealer 17, and the diameter of sealed section is greater than the diameter of supporting tight section, and the diameter of sealed section is unanimous with the diameter of first vertical portion 13. The fixing block 2 is further provided with a connecting hole, the connecting hole comprises a placing hole at the lower part and a threaded hole at the upper part, the threaded section is in threaded connection with the threaded hole, and the inner diameter of the placing hole is consistent with the diameter of the sealing section. The top of the thread section is positioned outside the fixed block 2, and a holding block 19 is fixed on the thread section.

The abutting rod 9 is further fixedly provided with a limiting block 20, the fixing block 2 is vertically and slidably connected with a moving rod 21, the top of the moving rod 21 is slidably connected to the bottom of the holding block 19, the bottom of the holding block 19 is provided with an annular groove, and the holding block 19 is slidably connected in the annular groove.

The specific implementation process is as follows:

after the puncture is finished, the hard tube section of the main body 1 is placed in the placing groove 6, and the fixing block 2 is pressed on the skin of the patient, so that the sucking disc 10 sucks the skin of the patient tightly. And meanwhile, the clamping block 3 is extruded by the body part of the patient, can rotate, and can limit the rotation angle of the clamping block 3 through the arrangement of the limiting block 5, so that the clamping block 3 clamps the body of the patient.

When the clamping block 3 rotates, the locking block 7 can be pressed, so that the locking block 7 presses the hard pipe section in the placing groove 6. And when locking block 7 rotated, drive and support tight pole 9 and remove to make and support tight pole 9 and will press from both sides tight piece 3 and support tightly, thereby accomplish better fixed. After the fixing of the main body 1 is completed, the holding block 19 is held and screwed, so that the driving rod 18 moves downwards, the sealing ball 17 is tightly pressed in the conical barrel 16, the conical barrel 16 is sealed, and further external air is prevented from entering the suction cup 10.

In the process of moving the driving rod 18 downward, the sealing section gradually enters the first vertical portion 13, and the first vertical portion 13 is sealed. And holding piece 19 and moving down, can the carriage release lever 21 move down, and at this moment, carriage release lever 21 can restrict limiting block 20, avoids the tight pole 9 to remove, and then can realize fixing clamping block 3 and locking block 7 for the fixed effect of main part 1 is better, reduces the probability that the pipe takes place to remove in the use.

It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications should not be construed as affecting the performance of the invention and its practical application.

Claims

1. A catheter for anchoring a nerve block, comprising a tubular body, wherein: the positioning piece is wrapped outside the main body and comprises a fixing block and clamping blocks positioned on two sides of the fixing block, the two clamping blocks are symmetrically arranged about a central axis of the fixing block, notches are formed in opposite sides of the two clamping blocks, protruding blocks are arranged at the notches, and the protruding blocks are hinged to two ends of the fixing block; the two ends of the fixed block are also provided with limit blocks for limiting the rotation angle of the clamping block; the bottom of fixed block is provided with the sucking disc, and the top of fixed block is provided with the main part and places the position.

2. The catheter of claim 1, wherein: the main part is placed the position and is including setting up the standing groove at fixed block top and the locking piece that is located the standing groove both sides, and the locking piece articulates on the fixed block, and the top outside of locking piece offsets with the top of two tight blocks of clamp respectively.

3. The catheter of claim 2, wherein: an elastic piece is arranged between the bottoms of the two locking blocks.

4. The catheter of claim 3, wherein: the main part includes hose section and the hard tube section of intercommunication each other, and hose section is connected with the syringe needle, and the hard tube section is located the main part and places the position.

5. The catheter of claim 4, wherein: the fixed block still includes two and runs through the fixed block lower part and extend to the tight pole that supports in the standing groove, supports tight pole sliding connection on the fixed block, and supports the both ends of tight pole and offset with pressing from both sides tight piece and locking piece respectively.

6. The catheter of claim 5, wherein: one side of the locking blocks close to each other is provided with an anti-skid pad.

7. The catheter of claim 6, wherein: the clamping block comprises an upper hard section and a lower rubber section.

8. The catheter of claim 7, wherein: the fixed block is internally provided with a flow guide channel, the sucker is provided with a through hole communicated with the flow guide channel, and the flow guide channel is internally provided with a one-way valve capable of guiding external gas into the through hole.

9. The catheter of claim 8, wherein: the check valve includes the toper bucket, and the path end of toper bucket is equipped with the ball sealer in the toper bucket towards the through-hole, is equipped with the spring between the lateral wall of ball sealer and toper bucket, still is equipped with the actuating lever that the drive ball sealer removed in the mounting, and actuating lever threaded connection is on the fixed block, and the one end of actuating lever offsets with the ball sealer, and the other end of actuating lever is located outside the fixed block.

10. The catheter of claim 9, wherein: the driving rod comprises a pressing section, a sealing section and a thread section which are sequentially arranged from bottom to top, and the diameter of the sealing section is consistent with that of the flow guide channel.