阅读说明：本技术 一种具有阻力反馈结构的医用神经阻滞针及其使用方法 (Medical nerve blocking needle with resistance feedback structure and use method thereof ) 是由 王鸿程 王伟 胡敏 岳仙娟 李戈 王斌 来沙沙 刘瑛 杨小龙 马荣荣 于 2021-09-18 设计创作，主要内容包括：本发明公开了一种具有阻力反馈结构的医用神经阻滞针及其使用方法,具体涉及医疗技术领域,包括针体,所述针体内设置有密封管,所述密封管的左端与针尖的右端固定连接,所述密封管的外表面开设有若干个药口,所述针尖的右端固定连接有弹性结构。本发明通过针尖的穿刺阻力增大可以实现压缩弹性结构的操作,进而使得密封管可以在穿刺过程收入针体内,防止了血液的回流问题,同时避免了对药物的污染导致失效的问题,并且在弹性结构受到阻力形变的同时可以在气压的作用下控制第一活塞的运动,进而可以实现阻力反馈的效果,便于医护人员的及时调整,而且本装置结构简单,操作简易,造价较低,具有良好的使用价值。(The invention discloses a medical nerve block needle with a resistance feedback structure and a using method thereof, and particularly relates to the technical field of medical treatment. The invention can realize the operation of compressing the elastic structure by increasing the puncture resistance of the needle point, further lead the sealing tube to be collected into the needle body in the puncture process, prevent the backflow problem of blood, simultaneously avoid the problem of failure caused by the pollution of the medicine, and control the movement of the first piston under the action of air pressure when the elastic structure is deformed by resistance, further realize the effect of resistance feedback, facilitate the timely adjustment of medical personnel, and the device has simple structure, simple operation, lower manufacturing cost and good use value.)

1. The utility model provides a medical neural blocking needle with resistance feedback structure, includes needle body (1), its characterized in that: a sealing tube (13) is arranged in the needle body (1), the left end of the sealing tube (13) is fixedly connected with the right end of the needle point (2), a plurality of medicine openings (14) are formed in the outer surface of the sealing tube (13), an elastic structure (9) is fixedly connected with the right end of the needle point (2), the elastic structure (9) is arranged in the annular shell (4), the annular shell (4) is fixedly connected to the inner surface of the needle body (1), and a control structure (6) is arranged in the needle body (1);

the surface of needle body (1) and the interior fixed surface of cover shell (3) are connected, the upper surface of cover shell (3) and the lower fixed surface connection of rectangle shell (8), be provided with first piston (17) in rectangle shell (8), fixedly connected with fixed plate (18) in rectangle shell (8), two contacts (5) of the left surface fixedly connected with of fixed plate (18), the left surface of rectangle shell (8) is provided with warning light (16), the left surface of rectangle shell (8) is linked together with the one end of tubule (7), tubule (7) set up in needle body (1), the other end of tubule (7) is linked together with the right flank of annular shell (4).

2. The medical nerve block needle with resistance feedback structure according to claim 1, wherein: the front and the back of cover shell (3) respectively with the opposite face fixed connection of two bracelet (10), two the equal fixedly connected with rubber circle (11) of internal surface of bracelet (10), the upper surface of rectangle shell (8) is provided with observation window (15).

3. The medical nerve block needle with resistance feedback structure according to claim 1, wherein: elastic structure (9) are including four body of rod (92), four the left end of the body of rod (92) and the right-hand member fixed connection of needle point (2), four the right-hand member of the body of rod (92) and the left surface fixed connection of second piston (91), second piston (91) sets up in annular shell (4), the right flank of second piston (91) and the left end fixed connection of four second spring (93), four the right-hand member of second spring (93) and the right flank fixed connection of annular shell (4) inner wall.

4. The medical nerve block needle with resistance feedback structure according to claim 1, wherein: control structure (6) include connecting rod (61), connecting rod (61) set up in needle body (1), the left end of connecting rod (61) and the right-hand member fixed connection of needle point (2), the external fixed surface of connecting rod (61) is connected with operation panel (62), the right flank joint of operation panel (62) has uide bushing (63), bracing piece (65) have been cup jointed to the internal surface of uide bushing (63), first spring (64) have been cup jointed to the surface of bracing piece (65), the right-hand member of first spring (64) and the left surface fixed connection of uide bushing (63).

5. The medical nerve block needle with resistance feedback structure according to claim 4, wherein: the left end and the right end of bracing piece (65) respectively with the left surface and the right flank fixed connection of through-hole (12) inner wall, the left surface of through-hole (12) inner wall and the left end fixed connection of first spring (64), the lower surface at cover shell (3) is seted up in through-hole (12).

6. A use method of a medical nerve block needle with a resistance feedback structure is characterized by comprising the following steps:

s1, when the needle is used, the needle body (1) is firstly operated through the hand-held bracelet (10), the needle point (2) is pricked into the skin of a patient, and under the resistance action of the needle point (2), the needle point (2) pushes the rod body (92) and the sealing tube (13) to move, so that the rod body (92) pushes the second piston (91) to move rightwards;

s2, the first piston (17) moves in the rectangular shell (8) under the action of air pressure, the displacement of the first piston (17) can be observed through the observation window (15) to know the resistance, when the second piston (91) touches the contact (5), the contact (5) controls the indicator light (16) to light up to remind medical staff of reaching the maximum resistance, and meanwhile, the sealing tube (13) can enter the needle body (1) when moving to enable the medicine port (14) to be closed;

s3, when injecting liquid at last, push operation panel (62) and remove for operation panel (62) push connecting rod (61) and remove, make connecting rod (61) push needle point (2) and remove, make needle point (2) drive sealed tube (13) stretch out needle body (1), medicine mouth (14) leak outward this moment, and then can carry out the injection operation through interface and the external connection on needle body (1) right side.

Technical Field

The invention relates to the technical field of medical treatment, in particular to a medical nerve blocking needle with a resistance feedback structure and a using method thereof.

Background

The continuous nerve blocking technology can realize the functions of prolonging anesthesia, postoperative analgesia and sympathetic nerve block according to the needs of operations, can realize the fractionated administration at the same time, thereby reducing the risk of local anesthetic poisoning, the nerve block under the current ultrasonic guidance is widely developed in clinic, plays an important role in alleviating postoperative pain of patients, reducing the use amount of central analgesic drugs and accelerating postoperative rehabilitation, and the visualization technology of ultrasonic guidance changes the mode of blind exploration in the past, is more accurate, safe and convenient for teaching, but also brings problems to ultrasonic guidance, in the operation process, an operator needs to fix the ultrasonic probe with one hand and operate the nerve block needle with the other hand, extra personnel needs to withdraw and inject the medicine at the moment, and the double-person operation needs an assistant to have rich related experience so as to accurately sense whether the pressure of pushing the medicine is too large and the medicine injection speed is normal.

In clinical work, anaesthesia physician can only seek nurse's assistance usually, resistance size that meets when the medicine is injected is hardly accurate the feedback to the operator, the operator of being not convenient for makes the adjustment rapidly, though there is the mode of establishing pressure sensor and detecting puncture pressure through adding among the prior art, but need electric power to connect, and the price is comparatively expensive, and simultaneously, at the in-process of puncture, blood is easily by pumpback to blocking in the needle, blood causes dilution or pollution to the medicine, cause the medicine to become invalid easily.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a medical nerve blocking needle with a resistance feedback structure and a using method thereof, and the technical problems to be solved by the invention are as follows: have among the prior art to establish pressure sensor through adding and carry out the mode that detects to puncture pressure, but need electric power to connect, the price is comparatively expensive moreover, simultaneously, at the in-process of puncture, blood is easily by pumpback to the blocking needle in, and blood causes dilution or pollution to the medicine, causes the problem that the medicine became invalid easily.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a medical nerve hinders needle with resistance feedback structure, includes the needle body, be provided with the sealed tube in the needle body, the left end of sealed tube and the right-hand member fixed connection of needle point, a plurality of medicine mouth has been seted up to the surface of sealed tube, the right-hand member fixedly connected with elastic construction of needle point, elastic construction sets up in the annular shell, annular shell fixed connection is at the internal surface of needle body, be provided with the control structure in the needle body.

The utility model discloses a needle set, including the needle body, the surface of needle body and the interior fixed surface of cover shell are connected, the upper surface of cover shell and the lower fixed surface of rectangle shell are connected, be provided with first piston in the rectangle shell, fixedly connected with fixed plate in the rectangle shell, two contacts of left surface fixedly connected with of fixed plate, the left surface of rectangle shell is provided with the warning light, the left surface of rectangle shell is linked together with the one end of tubule, the tubule sets up in the needle body, the other end of tubule is linked together with the right flank of annular shell.

As a further scheme of the invention: the front and the back of cover shell respectively with the opposite face fixed connection of two bracelets, two the equal fixedly connected with rubber circle of internal surface of bracelet, the upper surface of rectangle shell is provided with the observation window.

As a further scheme of the invention: the elastic structure comprises four rod bodies, four, the left end of each rod body is fixedly connected with the right end of the needle point, four, the right end of each rod body is fixedly connected with the left side face of the second piston, the second piston is arranged in the annular shell, the right side face of the second piston is fixedly connected with the left ends of the four second springs, and the right ends of the second springs are fixedly connected with the right side face of the inner wall of the annular shell.

As a further scheme of the invention: the control structure includes the connecting rod, the connecting rod sets up in the needle body, the left end of connecting rod and the right-hand member fixed connection of needle point, the outer fixed surface of connecting rod is connected with the operation panel, the right flank joint of operation panel has the uide bushing, the bracing piece has been cup jointed to the internal surface of uide bushing, the surface of bracing piece has cup jointed first spring, the right-hand member of first spring and the left surface fixed connection of uide bushing.

As a further scheme of the invention: the left end and the right end of bracing piece respectively with the left surface and the right flank fixed connection of through-hole inner wall, the left surface of through-hole inner wall and the left end fixed connection of first spring, the through-hole is seted up at the lower surface of cover shell.

A method for using a medical nerve block needle with a resistance feedback structure comprises the following steps:

s1, when in use, the hand-held ring is firstly used for operating the needle body, the needle point is pricked into the skin of a patient, and under the resistance action of the needle point, the needle point pushes the rod body and the sealing tube to move, so that the rod body pushes the second piston to move rightwards.

S2, then under the atmospheric pressure effect for first piston removes in the rectangle shell, can observe the displacement of first piston through the observation window this moment and learn the size of resistance, when the second piston touched the contact, the contact control warning light lighted this moment reminds medical personnel in order to reach the resistance maximum value, and the sealed tube can get into in the needle body when removing simultaneously, makes the medicine mouth can seal.

S3, when injecting liquid at last, the pushing operation board moves the connecting rod, the connecting rod moves the needle point, the needle point drives the sealing tube to stretch out the needle body, the medicine opening leaks outside at the moment, and then the medicine injection operation can be carried out through the interface and the external connection on the right side of the needle body.

The invention has the beneficial effects that:

1. the invention can realize the operation of compressing the elastic structure by increasing the puncture resistance of the needle point, so that the sealing tube can be collected into the needle body in the puncture process, thereby preventing the backflow problem of blood, avoiding the problem of failure caused by the pollution of medicines, and controlling the movement of the first piston under the action of air pressure when the elastic structure is deformed by resistance, thereby realizing the effect of resistance feedback, facilitating the timely adjustment of medical personnel;

2. the needle point is moved by the pushing control of the operating plate on the connecting rod, so that the medicine port on the surface of the sealing tube can be separated from the needle body, the purpose of medicine injection can be smoothly achieved, and meanwhile, the depth of the needle point can be reduced by adopting a needle body loosening mode in a movable manner, so that the medical care requirements under various conditions can be met.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional exploded cross-sectional structure of the present invention;

FIG. 2 is a schematic bottom perspective view of the present invention;

fig. 3 is a schematic view of a three-dimensional explosion cross-section structure of the needle body of the present invention;

FIG. 4 is a perspective view of the needle tip of the present invention;

FIG. 5 is a schematic structural view of a control structure according to the present invention;

FIG. 6 is a schematic cross-sectional view of a rectangular shell according to the present invention;

in the figure: 1 needle body, 2 needle points, 3 casings, 4 annular shells, 5 contacts, 6 control structure, 61 connecting rod, 62 operation panel, 63 uide bushing, 64 first spring, 65 bracing piece, 7 tubules, 8 rectangle shells, 9 elastic construction, 91 second piston, 92 body of rod, 93 second spring, 10 bracelet, 11 rubber circle, 12 through-holes, 13 sealed tubes, 14 medicine mouths, 15 observation window, 16 warning light, 17 first piston, 18 fixed plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, the invention provides a medical nerve block needle with a resistance feedback structure, which comprises a needle body 1, wherein a sealing tube 13 is arranged in the needle body 1, the left end of the sealing tube 13 is fixedly connected with the right end of a needle point 2, a plurality of medicine openings 14 are formed in the outer surface of the sealing tube 13, the medicine openings 14 are formed, so that medicine liquid flows outwards conveniently, and the medicine injection operation is further facilitated, an elastic structure 9 is fixedly connected with the right end of the needle point 2, the elastic structure 9 is arranged in an annular shell 4, the annular shell 4 is fixedly connected to the inner surface of the needle body 1, and a control structure 6 is arranged in the needle body 1.

The surface of needle body 1 and the interior fixed surface of cover shell 3 are connected, the upper surface of cover shell 3 and the lower fixed surface of rectangle shell 8 are connected, through setting up rectangle shell 8 and annular shell 4, thereby airtight space can be established, be convenient for the actual purpose of operating smoothly, be provided with first piston 17 in the rectangle shell 8, fixedly connected with fixed plate 18 in the rectangle shell 8, two contacts 5 of left surface fixedly connected with of fixed plate 18, the left surface of rectangle shell 8 is provided with warning light 16, through setting up contact 5 and warning light 16, make contact 5 can control warning light 16 and send the light, thereby can remind medical personnel's resistance to have reached the maximum value. Avoid the problem that transitional operation caused the risk, the left surface of rectangular shell 8 is linked together with the one end of tubule 7, through setting up tubule 7 for tubule 7 can play the intercommunication operation of annular shell 4 and rectangular shell 8, thereby the control work of second piston 91 to first piston 17 of being convenient for, tubule 7 sets up in needle body 1, and the other end of tubule 7 is linked together with the right flank of annular shell 4.

As shown in fig. 1, the front and the back of cover case 3 respectively with two bracelet 10's opposite face fixed connection, the equal fixedly connected with rubber circle 11 of the internal surface of two bracelets 10, through setting up bracelet 10 and rubber circle 11, make bracelet 10 can provide the operating point for medical personnel, be convenient for to the handheld operation of needle body 1, rubber circle 11 can increase the frictional force between medical personnel and the bracelet 10 simultaneously, avoid droing of needle body 1, and the compliance of rubber can bring good actual operability for medical personnel, the upper surface of rectangular shell 8 is provided with observation window 15, through setting up observation window 15, thereby be convenient for the observation work to first piston 17 position.

As shown in fig. 4, the elastic structure 9 includes four rod bodies 92, the left ends of the four rod bodies 92 are fixedly connected with the right end of the needle point 2, the right ends of the four rod bodies 92 are fixedly connected with the left side surface of the second piston 91, the second piston 91 is arranged in the annular shell 4, the right side surface of the second piston 91 is fixedly connected with the left ends of the four second springs 93, through the arrangement of the second springs 93, the second springs 93 can ensure the movable operation of the connecting rod 61 and the sealing tube 13, and further the sealing tube 13 can take in the needle body 1 to prevent the backflow of blood, and meanwhile, the elastic reset effect can be achieved, and the right ends of the four second springs 93 are fixedly connected with the right side surface of the inner wall of the annular shell 4.

As shown in fig. 2 and 5, the control structure 6 includes a connecting rod 61, the connecting rod 61 is disposed in the needle body 1, the left end of the connecting rod 61 is fixedly connected with the right end of the needle point 2, the outer surface of the connecting rod 61 is fixedly connected with an operation board 62, the operation board 62 can provide an operation point for medical personnel by arranging the operation board 62, thereby facilitating the medical personnel to control the work of the connecting rod 61, the right side surface of the operation board 62 is clamped with a guide sleeve 63, the inner surface of the guide sleeve 63 is sleeved with a support rod 65, the support rod 65 can guide the guide sleeve 63 by arranging the support rod 65, thereby ensuring the smooth sliding of the guide sleeve 63, the outer surface of the support rod 65 is sleeved with a first spring 64, the elastic force of the first spring 64 can drive the guide sleeve 63 to smoothly complete the resetting operation by arranging the first spring 64, the right end of the first spring 64 is fixedly connected with the left side surface of the guide sleeve 63, the left end and the right end of the supporting rod 65 are respectively fixedly connected with the left side surface and the right side surface of the inner wall of the through hole 12, through the arrangement of the through hole 12, the through hole 12 can provide a moving space for the operating panel 62, the operating panel 62 can normally move, the left side surface of the inner wall of the through hole 12 is fixedly connected with the left end of the first spring 64, and the through hole 12 is arranged on the lower surface of the casing 3.

A method for using a medical nerve block needle with a resistance feedback structure comprises the following steps:

s1, when the hand ring 10 is used, the needle body 1 is firstly operated through the hand ring 10, the needle point 2 is pricked into the skin of a patient, the needle point 2 pushes the rod body 92 and the sealing tube 13 to move under the resistance action of the needle point 2, and the rod body 92 pushes the second piston 91 to move rightwards.

S2, then under the action of air pressure, the first piston 17 moves in the rectangular shell 8, at the moment, the displacement of the first piston 17 can be observed through the observation window 15 to know the resistance, when the second piston 91 touches the contact 5, the contact 5 controls the indicator light 16 to light up, the medical staff is reminded to reach the maximum resistance, and meanwhile, the sealing tube 13 can enter the needle body 1 when moving, so that the medicine opening 14 can be sealed.

S3, when injecting liquid at last, push operation panel 62 and remove for operation panel 62 pushes connecting rod 61 and removes, makes connecting rod 61 push needle point 2 and removes, makes needle point 2 drive sealed tube 13 and stretch out needle body 1, and medicine mouth 14 leaks outward this moment, and then can carry out the injection operation through interface and the external connection on needle body 1 right side.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.