CN110743080A

CN110743080A - Catheter fixing device for cerebrovascular interventional therapy

Info

Publication number: CN110743080A
Application number: CN201911065782.6A
Authority: CN
Inventors: 叶祖森
Original assignee: First Affiliated Hospital of Wenzhou Medical University
Current assignee: First Affiliated Hospital of Wenzhou Medical University
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-02-04
Anticipated expiration: 2039-11-04
Also published as: CN110743080B

Abstract

The invention discloses a catheter fixing device for cerebrovascular interventional therapy, which adopts the technical scheme that the catheter fixing device comprises a bearing plate and a fixing part, wherein a shell is arranged on the bearing plate, an inner cavity is arranged on the shell, at least one opening communicated with the inner cavity is arranged on the shell, a circular rotary table is rotationally connected in the inner cavity and is detachably connected with the shell through an installation part, a winding groove is arranged on the circumferential side wall of the circular rotary table, a limiting device is arranged in the inner cavity at a position corresponding to the winding groove, a delivery channel is arranged on the shell, a catheter can be gradually delivered out from the delivery channel in the rotating process of the circular rotary table, a delivery channel is arranged on the shell, the catheter is delivered into the inner cavity from the outside along the delivery channel in the rotating process of the circular rotary table, scales are marked on the end part of the circular rotary table exposed out of the inner cavity along the circumferential direction of the circular, the fixing device can effectively fix the extracorporeal catheter to ensure that the extracorporeal catheter is not easy to slide, and can control the delivery distance of the catheter.

Description

Catheter fixing device for cerebrovascular interventional therapy

Technical Field

The invention relates to the technical field of medical instruments, in particular to a catheter fixing device for cerebrovascular interventional therapy.

Background

The interventional therapy in cerebral blood vessel utilizes the operation technology of catheter, and under the support of digital subtraction angiography under the control of computer, the operation technology of catheter in blood vessel is adopted to diagnose and treat the pathological changes of human neurovascular system by the methods of selective angiography, embolism, dilation forming, mechanical clearing, drug delivery and the like.

When carrying out vascular intervention catheter treatment, all need be with inside the human body of very long catheterization, because the pipe is very long, in order to make the smooth entering body of pipe, need fix the pipe that is located the outside, generally adopt medical adhesive tape to paste fixedly, if the adhesive tape drops and makes the pipe slide easily to can cause the secondary injury to the patient.

During angiography, a catheter needs to be sent to a designated position along a guide wire for angiography, the length of a diseased blood vessel and the diameter of the blood vessel are measured, a stent suitable for the diseased blood vessel is selected, a fine stent is conveyed to a narrow position through the catheter to release the stent to prop open the blood vessel, however, in the operation process, in order to guarantee the perfect success of the operation, the catheter needs to be placed in the most suitable area, but in the catheter delivery process, due to the fact that whether the operation is fine or not and whether the control is proper or not, the placement of the catheter is not accurate enough, when the catheter is placed too long, the catheter needs to be adjusted back and forth, unnecessary time waste is caused in the operation process, and excessive energy of an operator is consumed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a catheter fixing device for cerebrovascular interventional therapy, which can effectively fix an extracorporeal catheter so that the extracorporeal catheter is not easy to slide and can control the delivery distance of the catheter.

In order to achieve the purpose, the invention provides the following technical scheme: a catheter fixing device for cerebrovascular interventional therapy comprises a bearing plate positioned on a patient affected limb and a fixing part capable of fixing the bearing plate on the patient affected limb, wherein a shell is arranged on the bearing plate, an inner cavity is formed in the shell, at least one opening communicated with the inner cavity is formed in the shell, a circular turntable is rotatably connected in the inner cavity, and the circular turntable is detachably connected with the shell through a mounting part;

a winding groove for winding the catheter is arranged on the circumferential side wall of the circular turntable, a limiting device for limiting and fixing the catheter in the winding groove is arranged in the inner cavity at a position corresponding to the winding groove, a delivery channel for delivering the conduit in the winding groove outwards is arranged on the shell, the conduit can be gradually delivered outwards from the delivery channel in the rotating process of the circular turntable, the shell is provided with a delivery channel for delivering an external catheter into the inner cavity, the catheter is delivered into the inner cavity from the outside along the delivery channel in the rotating process of the circular turntable, the catheter is wound around the winding groove for at least one circle and then is delivered out from the delivery channel after being delivered into the inner cavity along the delivery channel, the end part of the circular turntable, which is exposed out of the inner cavity, is provided with scales along the circumferential direction of the end part, the shell is provided with a threaded hole which is communicated with the delivery channel, and a threaded rod which can fix the catheter is screwed in the threaded hole.

The invention is further configured to: the guide piece is arranged on the shell and can play a role in guiding and limiting the catheter which is delivered from the delivery channel, a through hole for the catheter to pass through is formed in the guide piece, and the size of the through hole is matched with that of the catheter.

The invention is further configured to: the guide part rotates to be connected on the casing, be provided with the perforation that a plurality of diameter differs on the guide part, the perforation sets up along the circumference align to grid of casing, be provided with the screw thread passageway on the casing, the spiro union has the fixed screw that can play the effect of limit rotation to the guide part in the screw thread passageway.

The invention is further configured to: stop device is including being used for playing limiting displacement's a plurality of elasticity spacing pads to the pipe and setting up the holding tank that is used for holding the spacing pad of elasticity on the casing inside wall and set up the spring that is used for promoting the spacing pad of elasticity to the removal of inner chamber center in the holding tank, the spring be provided with a plurality ofly and with the spacing pad one-to-one setting of elasticity, be provided with the flexible control unit of manual control spring on the casing.

The invention is further configured to: the control part is including setting up on the casing and switching on the passageway that slides to the holding tank and slide and connect the control handle who is used for controlling the spring is flexible in the passageway that slides, the passageway that slides extends the setting along the length direction of spring, the control handle keeps away from the one end of spring and outwards extends the setting along the passageway that slides, the passageway that slides is kept away from the one end of elasticity spacing pad and is provided with and supplies the control handle to slide into fixed passage, fixed passage and the perpendicular and intercommunication setting of passageway level that slides.

The invention is further configured to: when an opening communicated with the inner cavity is formed in one side of the shell, the round turntable is limited through the mounting component, the mounting component comprises a fixing rod arranged at the center of the bottom of the inner cavity, an inserting hole capable of being inserted into the fixing rod is formed in the round turntable, one end, far away from the inner cavity, of the fixing rod extends outwards along the inserting hole and is provided with external threads, and a limiting nut for limiting the round turntable is screwed on the fixing rod.

The invention is further configured to: the relative both sides of casing make to play limiting displacement to circular carousel through elasticity spacing pad and winding groove both sides casing butt when all being provided with the opening of intercommunication inner chamber.

The invention is further configured to: one side of the bearing plate, which faces the affected limb of the patient, is provided with a flexible spongy cushion.

The invention is further configured to: the fixed part is including setting up the elastic connection area accepting the board both sides, the lower surface of accepting the elastic connection area of board one side is provided with the magic and pastes female face, the upper surface of accepting the elastic connection area of board opposite side is provided with the magic and pastes sub-face.

The invention is further configured to: and a control piece for controlling the circular turntable to rotate is arranged on the end face of the circular turntable.

In conclusion, the invention has the following beneficial effects: the bearing plate can be effectively fixed on the affected limb of the patient through the fixing part to prevent the slipping phenomenon, so that the smooth operation is ensured; the catheter is limited in the winding groove through the limiting device and the winding groove, so that the catheter is prevented from being separated from the winding groove, and the catheter can be always delivered outwards from the delivery channel in the rotating process of the circular turntable in the operation process; the design of the scales can facilitate a user to accurately control the delivery length of the catheter from the delivery channel; when the guide pipe needs to be fixed, one end of the threaded rod is abutted to the guide pipe by screwing the threaded rod, so that the guide pipe can be stably and firmly conveyed out of the channel, the guide pipe cannot move, and smooth operation is guaranteed.

Drawings

FIG. 1 is a perspective view of a catheter securement device;

FIG. 2 is a perspective view of a part of the hidden components of the housing;

fig. 3 is a schematic perspective view of a circular turntable.

Reference numerals: 1. a bearing plate; 11. a flexible foam-rubber cushion; 2. a fixing member; 21. an elastic connecting band; 3. a housing; 31. an inner cavity; 32. a circular turntable; 321. a winding groove; 33. a limiting device; 331. an elastic limit pad; 332. accommodating grooves; 333. a spring; 34. a delivery channel; 35. a delivery channel; 36. a threaded hole; 361. a threaded rod; 37. a guide member; 371. perforating; 38. a threaded passage; 381. fixing the screw rod; 4. a mounting member; 41. fixing the rod; 42. inserting holes; 43. a limit nut; 5. a control component; 51. a slipping channel; 52. a control handle; 53. a fixed channel; 6. and (6) a control member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 3, in order to achieve the above object, the present invention provides the following technical solutions: a catheter fixing device for cerebrovascular interventional therapy comprises a bearing plate 1 positioned on a patient affected limb and a fixing part 2 capable of fixing the bearing plate 1 on the patient affected limb, wherein the bearing plate 1 can be effectively fixed on the patient affected limb through the fixing part 2 to prevent the occurrence of a slipping phenomenon, so that smooth operation is ensured; be provided with casing 3 on the board 1, be provided with inner chamber 31 on the casing 3, be provided with at least one opening that communicates with inner chamber 31 on the casing 3, open-ended setting roughly divide into two kinds: 1. the mounting part 4 can be arranged at the bottom of the inner cavity 31, so that the mounting part 4 can effectively limit the mounting of the circular turntable 32, and the design is firm in mounting; 2. the two openings are positioned at the two opposite sides of the shell 3, so that a user can rotate the circular turntable 32 through the two sides, the convenience in the operation process is realized, and the design is convenient to use; the inner cavity 31 is rotatably connected with a circular turntable 32, the circular turntable 32 is detachably connected with the shell 3 through the mounting part 4, the mounting part 4 is designed to facilitate the detachment of the circular turntable 32 so as to facilitate the winding of the catheter on the circular turntable 32, and the inner cavity 31 and the circular turntable 32 can be cleaned after the detachment, so that the effect of multiple use is achieved;

the circumferential side wall of the circular turntable 32 is provided with a winding groove 321 for winding the catheter, a limiting device 33 for limiting and fixing the catheter in the winding groove 321 is arranged in the inner cavity 31 corresponding to the winding groove 321, the catheter is limited in the winding groove 321 through the limiting device 33 and the winding groove 321, the catheter is prevented from being separated from the winding groove 321, and the catheter can be ensured to be always outward withdrawn from the withdrawal channel 34 in the rotating process of the circular turntable 32 in the operation process; the casing 3 is provided with a delivery channel 34 for delivering the catheter in the winding groove 321 outwards, the catheter can be gradually delivered outwards from the delivery channel 34 in the rotation process of the circular turntable 32, the casing 3 is provided with a delivery channel 35 for delivering the external catheter into the inner cavity 31, the catheter is delivered from the outside to the inner cavity 31 along the delivery channel 35 in the rotation process of the circular turntable 32, the catheter is delivered from the outside to the inner cavity 31 after being wound around the winding groove 321 for at least one circle along the delivery channel 35 to the inner cavity 31, the end part of the circular turntable 32 exposed out of the inner cavity 31 is marked with scales along the circumferential direction, and the scales can be conveniently designed for a user to accurately control the delivery length of the catheter from the delivery channel 34; be provided with on casing 3 and switch on to the screw hole 36 of passing through passageway 34, threaded connection has the threaded rod 361 that can play the fixed action to the pipe in screw hole 36, through screwing threaded rod 361 when the pipe needs to be fixed for the one end and the pipe butt of threaded rod 361, thereby guarantee that the pipe can stabilize in passing through passageway 34, can not take place to remove, guarantee going on smoothly of operation.

Preoperative preparation: the catheter which is needed to be used in the operation is inserted into the delivering channel 35 and then wound in the winding groove 321 of the circular turntable 32, the number of winding turns is at least one so that the catheter can be driven to continuously enter the cavity in the subsequent rotating process of the circular turntable 32, the catheter at the end extends out of the delivering channel 34 after being wound in the winding groove 321, the catheter is limited by the limiting device 33, the situation that the catheter moves up and down and is separated from the winding groove 321 in the using process is prevented, and the operation process is prevented from being influenced.

In the operation: when a catheter of a specified length is required, the circular turntable 32 is rotated by observing the scale, and the circular turntable 32 is rotated by a specified number of turns and a specified angle, thereby delivering the required catheter from the delivery passage 34. The catheter is secured against migration by tightening threaded shaft 361 as it is delivered to the desired location in the vessel, and then subjected to the subsequent surgical steps required.

The shell 3 is provided with a guide piece 37 which can play a role of guiding and limiting the catheter delivered from the delivery channel 34, the guide piece 37 is provided with a perforation 371 for the catheter to pass through, the size of the perforation 371 is matched with that of the catheter, and the design of the guide piece 37 can play the following roles: 1. a guide function is provided, and the pipe extending from the delivery passage 34 passes through the through hole 371 of the guide member 37, so that the pipe extends in a designated direction; 2. have limiting displacement, the size and the pipe size looks adaptation of perforation 371 to play certain limiting displacement, can effectually prevent that the pipe from taking place to remove through perforation 371 to the pipe.

Guide 37 rotates to be connected on casing 3, be provided with the perforation 371 that a plurality of diameter differs on guide 37, perforation 371 sets up along casing 3's circumference align to grid, be provided with thread passage 38 on casing 3, the spiro union has the clamping screw 381 that can play the effect of rotation limitation to guide 37 in thread passage 38, this design can both play spacing guide effect to the pipe of different footpath lengths through guide 37, and can play the effect of rotation limitation to guide 37 through clamping screw 381, at first select suitable perforation 371, rethread rotation guide 37, make perforation 371 remove suitable position and fix guide 37 through clamping screw 381, the perforation 371 at this position can also control the angle that the pipe advances to the internal body when playing spacing guide effect, thereby be applicable to more operation condition, better practicality has.

The limiting device 33 comprises a plurality of elastic limiting pads 331 for limiting the position of the catheter, an accommodating groove 332 arranged on the inner side wall of the shell 3 for accommodating the elastic limiting pads 331, and a spring 333 arranged in the accommodating groove 332 for pushing the elastic limiting pads 331 to move towards the center of the inner cavity 31, the spring 333 is provided with a plurality of springs and is arranged corresponding to the elastic limiting pads 331 one by one, the shell 3 is provided with a control part 5 for manually controlling the spring 333 to stretch, the design can play a proper and effective limiting role for catheters with different diameters by using the elastic limiting pad 331 and the spring 333 in cooperation, and in the rotating process of the circular turntable 32, because the elastic limit pad 331 is immovable, the catheter can be successfully delivered from the delivery channel 34, and moreover, the elastic limit pad 331 can be abutted against the housing 3 at the two sides of the winding groove 321 to play a role of limiting the circular turntable 32 to a certain extent.

The control part 5 comprises a sliding channel 51 arranged on the housing 3 and communicated with the accommodating groove 332, and a control handle 52 connected in the sliding channel 51 in a sliding manner for controlling the expansion and contraction of the spring 333, wherein the sliding channel 51 extends along the length direction of the spring 333, one end of the control handle 52 far away from the spring 333 extends outwards along the sliding channel 51, one end of the sliding channel 51 far away from the elastic limit pad 331 is provided with a fixed channel 53 for the control handle 52 to slide into the fixed, the fixed channel 53 is horizontally and vertically communicated with the sliding channel 51, the design can enable the elastic limit pad 331 to release the limiting effect on the conduit in the winding groove 321 and the circular turntable 32 by moving the control handle 52, so as to be convenient for subsequently taking the circular turntable 32 off from the housing 3, the design of the fixed channel 53 can enable the control handle 52 to slide into the fixed channel 53, thereby keeping the spring 333 in a compressed state all the time, the subsequent operation of the operator is facilitated.

When an opening communicated with the inner cavity 31 is formed in one side of the shell 3, the round turntable 32 is limited through the mounting part 4, the mounting part 4 comprises a fixing rod 41 arranged at the center of the bottom of the inner cavity 31, an inserting hole 42 capable of being inserted into the fixing rod 41 is formed in the round turntable 32, one end, far away from the inner cavity 31, of the fixing rod 41 extends outwards along the inserting hole 42 and is provided with an external thread, a limiting nut 43 for limiting the round turntable 32 is screwed on the fixing rod 41, the fixing device is designed to have various implementation states, when a catheter is positioned at a specified position, the limiting nut 43 is rotated to a proper position, so that the limiting nut 43 only can limit the round turntable 32 to move axially along the fixing rod 41 and cannot limit the rotation of the round turntable 32, when the catheter is positioned at the specified position, the limiting nut 43 can limit the rotation of the round turntable 32, and the catheter can be further ensured not to be screwed out from the delivery channel 34, ensuring the smooth operation.

The relative both sides of casing 3 make to play limiting displacement to circular carousel 32 through elasticity spacing pad 331 and winding groove 321 both sides casing 3 butt when all being provided with the opening of intercommunication inner chamber 31, and this design can facilitate the user can realize the rotation to circular carousel 32 through both sides opening to in the convenient operation process, the person of executing the operation can deliver at multiple position control pipe.

One side of the bearing plate 1 facing the affected limb of the patient is provided with a flexible spongy cushion 11, and the comfort of the patient is improved when the flexible spongy cushion 11 is in contact with the limb.

Fixed part 2 is including setting up at the elastic connection area 21 who accepts board 1 both sides, and the lower surface of accepting the elastic connection area 21 of board 1 one side is provided with the female face of magic subsides, and the upper surface of accepting the elastic connection area 21 of board 1 opposite side is provided with the magic and pastes sub-face, and the magic is pasted and the design of elastic connection area 21, can not only repetitious usage but also be applicable to the patient of different statures, and in addition, this design dismouting is convenient.

The end face of the circular rotating disc 32 is provided with a control member 6 for controlling the rotation of the circular rotating disc 32, and a user can control the rotation of the circular rotating disc 32 through the control member 6, so that the catheter gradually extends out of the delivery passage 34, wherein the control member 6 can be in various structures: 1. the rib structure can increase the friction between the circular turntable 32 and the fingers of the user, so that the user can rotate the circular turntable 32 by stirring the rib structure at any position. 2. Protruding pole structure, when executing the operation person and wearing gloves, can't be through stirring accurate positioning of finger, protruding pole structure is more than for the convex part of bead structure to the person of facilitating the use is through holding the rotation, thereby conveniently rotates circular carousel 32 to the assigned position, thereby makes the pipe that can deliver out appointed length.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a cerebrovascular intervenes treatment and uses pipe fixing device, is including being located patient and accepting board (1) on the limb and can will accepting fixed part (2) on patient's limb of board (1), characterized by: a shell (3) is arranged on the bearing plate (1), an inner cavity (31) is arranged on the shell (3), at least one opening communicated with the inner cavity (31) is arranged on the shell (3), a circular turntable (32) is rotationally connected in the inner cavity (31), and the circular turntable (32) is detachably connected with the shell (3) through a mounting part (4);

the catheter is characterized in that a winding groove (321) for winding the catheter is formed in the circumferential side wall of the circular turntable (32), a limiting device (33) for limiting and fixing the catheter in the winding groove (321) is arranged at a position, corresponding to the winding groove (321), in the inner cavity (31), a delivery passage (34) for delivering the catheter in the winding groove (321) outwards is formed in the shell (3), the catheter can be gradually delivered outwards from the delivery passage (34) in the rotating process of the circular turntable (32), a delivery passage (35) for delivering the external catheter into the inner cavity (31) is formed in the shell (3), the catheter is delivered into the inner cavity (31) from the outside along the delivery passage (35) in the rotating process of the circular turntable (32), and the catheter is delivered outwards from the delivery passage (34) after being wound in the winding groove (321) for at least one turn when the catheter is delivered into the inner cavity (31) along the delivery passage (35), the end part of the circular turntable (32) exposed out of the inner cavity (31) is provided with scales along the circumferential direction of the end part, the shell (3) is provided with a threaded hole (36) which is communicated with the delivery channel (34), and a threaded rod (361) which can fix the catheter is screwed in the threaded hole (36).

2. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: be provided with on casing (3) and can play guide limiting effect's guide (37) to the pipe that delivers from delivering channel (34), be provided with perforation (371) that supply the pipe to pass on guide (37), the size of perforation (371) and the size looks adaptation of pipe.

3. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 2, wherein: guide (37) rotate to be connected on casing (3), be provided with perforation (371) that a plurality of diameter differs on guide (37), perforation (371) are along the circumference align to grid setting of casing (3), be provided with screw thread passageway (38) on casing (3), threaded connection has in screw thread passageway (38) can play fixed screw (381) of limit rotation effect to guide (37).

4. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: stop device (33) including be used for playing limiting displacement's a plurality of elasticity spacing pads (331) to the pipe and set up holding tank (332) that are used for holding elasticity spacing pad (331) on casing (3) inside wall and set up spring (333) that are used for promoting elasticity spacing pad (331) to inner chamber (31) center removal in holding tank (332), spring (333) are provided with a plurality ofly and set up with elasticity spacing pad (331) one-to-one, be provided with the flexible control unit (5) of manual control spring (333) on casing (3).

5. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 4, wherein: control unit (5) including set up on casing (3) and lead to slide passageway (51) to holding tank (332) and slide and connect in slide passageway (51) and be used for control spring (333) flexible control handle (52), slide passageway (51) extend along the length direction of spring (333) and set up, the one end that spring (333) were kept away from in control handle (52) outwards extends the setting along slide passageway (51), the one end that elasticity spacing pad (331) were kept away from in slide passageway (51) is provided with and supplies control handle (52) fixed passageway (53) of sliding in, fixed passageway (53) and slide passageway (51) level are vertical and the intercommunication sets up.

6. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: when one side of the shell (3) is provided with an opening communicated with the inner cavity (31), the round turntable (32) is limited through the mounting part (4), the mounting part (4) comprises a fixing rod (41) arranged at the center of the bottom of the inner cavity (31), an inserting hole (42) capable of being inserted into the fixing rod (41) is formed in the round turntable (32), one end, far away from the inner cavity (31), of the fixing rod (41) extends outwards along the inserting hole (42) and is provided with an external thread, and a limiting nut (43) limiting the round turntable (32) is connected onto the fixing rod (41) in a threaded mode.

7. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 4, wherein: when openings communicated with the inner cavity (31) are formed in the two opposite sides of the shell (3), the shell (3) on the two sides of the winding groove (321) is abutted through the elastic limiting pads (331) so that the circular turntable (32) can be limited.

8. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: one side of the bearing plate (1) facing the affected limb of the patient is provided with a flexible spongy cushion (11).

9. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: fixed part (2) including set up in elastic connection area (21) of accepting board (1) both sides, the lower surface of accepting elastic connection area (21) of board (1) one side is provided with the magic and pastes female face, the upper surface of accepting elastic connection area (21) of board (1) opposite side is provided with the magic and pastes the son face.

10. The catheter fixing device for cerebrovascular interventional therapy as set forth in claim 1, wherein: the end face of the circular turntable (32) is provided with a control piece (6) for controlling the circular turntable (32) to rotate.