WO2018021705A1 - Nerve blocking material injector set for controlling pain - Google Patents

Abstract

The present invention relates to a nerve blocking material injector set for controlling pain. The nerve blocking material injector set for controlling pain comprises: a hollow guider extending in the longitudinal direction and inserted into a human body during a medical procedure; a hollow-type piercing tube passing through the inside of the hollow guider, and having a front end exposed to the outside of the hollow guider, wherein the front end has a blade formed thereon; an injecting tube installed in the piercing tube so as to enable reciprocal movement in the longitudinal direction, and provided with a discharging hole through which a nerve blocking material supplied from the outside is delivered to a target point; and a trocar including a supporting means for supporting the injecting tube so as to enable reciprocal movement of the injecting tube.

Description

Pain control neuro blocker injector set

The present invention relates to a nerve block material injector for reducing the pain occurring after various operations, and more particularly to a pain control neuro block material injector set used to reduce abdominal pain after laparoscopic surgery.

Catheter used in the medical field refers to a thin flexible conduit used to inject necessary drugs into the body or to discharge hematoma and body fluids and the like out of the body.

There are many types of such catheters, for example, to drain internal fluids of body cavities or coronary and cystic organs, or to inject therapeutic drugs, to balloon catheters for cardiovascular dilatation, to Hickman for drug injection and blood collection. It is widely used for catheters, tracheal catheters used to remove foreign bodies in the trachea and oral cavity of newborns, and dental suction catheters.

On the other hand, according to the development of medical technology and equipment, laparoscopic surgery, which replaces conventional open surgery, is being performed. Laparoscopic surgery has the advantages of smaller incisions, less scars and bleeding and a shorter recovery time than laparotomy. Therefore, laparoscopic surgery is being replaced by laparoscopic surgery.

However, even with laparoscopy, the pain caused by the wound cannot be avoided as long as a large number of holes are drilled in the abdomen. The pain is transmitted to the brain via the spinal cord via nerves present in the abdominal wall, which, fortunately, can be alleviated by administering a local analgesic to the abdominal nerves located between the internal and abdominal muscles.

By the way, the above-mentioned pain relief method, called the TAB block, is helpful in relieving the pain of the patient after surgery, but has the disadvantage that the drug of the analgesic does not last more than 6 hours. .

Usually, the pain after abdominal surgery peaks 2 to 3 days after surgery, so the tap block should be repeated several times. Pain medication should be repeated in the patient's side. This is undesirable because apart from the pain of the injection itself there is a possibility of infection following repeated injections.

In order to solve the above problems, as a technique capable of continuous administration of analgesics, a catheter for uniform transportation of therapeutic agents has been disclosed.

The present invention has been created to solve the above problems, it is possible to continuously supply the neuro-blocking substance to the target point of the abdomen for a necessary period of time, so that it is not necessary to administer the painkiller injection every few hours to reduce the burden on the patient An object of the present invention is to provide a pain control neuroinjector set.

In addition, the present invention, since the injection hole of the neuro-blocking material can be precisely positioned at the target point through the introducer, so as to use only a quantitative neuro-blocking material to prevent excessive administration of the neuro-blocking material nerves Another object is to provide a barrier material injector set.

In addition, the present invention, since the introducer can be separated and removed after the setting of the injector set, it is another object to provide a pain control neuro-blocking substance injector set that is easy to use.

Pain control neuroprotective material injector set of the present invention for achieving the above object, as to reach the pain control neuroprotective material to a target point in the body, taking the form of a hollow pipe extending in the longitudinal direction and part of the procedure An inducer including a hollow guider inserted into the body and a handle fixed to a rear end of the hollow guider; A hollow piercing tube through which the tip is exposed to the outside of the hollow guider through the inside of the hollow guider, and a blade is formed at the tip, and a nerve supplied from the outside and installed to allow longitudinal reciprocating motion inside the piercing tube. It characterized in that it comprises a trocar having an injection tube having an ejection hole for delivering the blocking material to the target point, and a support means for supporting the injection tube to reciprocate.

In addition, the support means; A housing having a size that can be grasped by a user, and having an inner space coupled to the rear end of the piercing tube, accommodating the rear end of the injection tube, and open to the outside through an opening; It characterized in that it comprises an elastic support for elastically supporting the injection tube in the installed state in the distal direction of the piercing tube.

In addition, the opening of the housing is characterized in that it is provided with a syringe connection for coupling a syringe for injecting neuroblocking material.

In addition, between the rear end and the opening of the injection tube is longitudinally stretchable, characterized in that it is further provided with a stretch tube for delivering the nerve block material supplied from the syringe to the injection tube.

In addition, between the handle and the housing of the introducer, it is characterized in that the coupling means for coupling the introducer and the housing if necessary.

In addition, the coupling means; And a plate-type detachable plate fixed to be spaced apart from the housing and having a predetermined thickness, and a fastening part provided on a handle of the introducer and accommodating and fixing the detachable plate.

In addition, the introducer is characterized in that it is possible to physically half the reference to the center axis of the hollow guider by applying an external force.

In addition, as used after removing the trocar from the introducer, the catheter is inserted into the body through the introducer and the tip is set to be located at the target point, and the neuro-blocking material is supplied to the catheter, the neuro-blocking material is catheter It characterized in that it comprises a drug supply means to be applied to the target point through.

In addition, the chemical supply means; The chemical liquid supply unit for pumping a neuro-blocking material, the distribution connector passing through the neuro-blocking material supplied through the chemical liquid supply and divided into two or more flows, and the neuro-blocking material connected to the distribution connector and passed through the distribution connector. And a dispensing tube leading to the catheter.

In addition, the tip portion of the catheter, is inserted into the body is fixed to the surrounding tissue, characterized in that the anchor tip is provided with a projection formed on the outer peripheral surface.

In addition, the anchor tip is characterized in that it is formed of a material that is detected through the medical imaging equipment in a state located in the body.

In addition, each of the distribution tube is characterized in that the flow rate adjusting unit for further adjusting the flow rate of the chemical liquid passing through the distribution tube.

Pain control neuro blocker injector set of the present invention made as described above, it is possible to continuously supply the neuro blocker to the target point of the abdomen for a necessary period of time, so it is not necessary to administer the painkiller injection every few hours, thereby burdening the patient I can alleviate it.

In addition, through the introducer it is possible to precisely position the ejection hole of the neuro-blocking material at the target point, it is possible to use only a quantitative neuro-blocking material to prevent excessive administration of the neuro-blocking material.

In addition, since the introducer can be removed after the setting of the injector set is completed, it is convenient to use.

1 is a view for explaining the configuration of the injector included in the neuro blocker injector set according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating the catheter shown in FIG. 1 separately.

3 is a perspective view showing the introducer and trocar used with the injector shown in FIG.

4 is a cross-sectional view for explaining an internal configuration of the trocar shown in FIG. 3.

FIG. 5 is a diagram illustrating a state in which the introducer illustrated in FIG. 3 is separated.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the injector set according to the present embodiment is composed of the injector 11, the introducer 29, and the trocar 31, for example, by continuously injecting a pain-controlling neuroprotective substance into the abdomen after laparoscopic surgery. To alleviate pain. In particular, the catheter 27, which will be described later, is kept inserted into the abdomen for two days or more, and the nerve block material supplied from the outside is applied to the target point.

1 is a view for explaining the configuration of the injector 11 included in the neuro blocker injector set according to an embodiment of the present invention, Figure 2 is a perspective view showing a separate catheter 27 shown in FIG. to be.

As shown, the injector 11 included in the present embodiment, the drug solution supply unit 13 for receiving and supplying the nerve block material, and the main tube for inducing the nerve block material discharged from the drug solution supply 13 ( 15, a filter 17 installed on the main tube 15, a distribution connector 19 fixed to an end of the main tube 15, and a plurality of distribution tubes connected to the distribution connector 19. (21), a flow rate control unit 23 for adjusting the flow rate of the nerve blocking material through the distribution tube 21, and the catheter 27 is fixed to the end of the distribution tube 21 and inserted into the abdomen .

First, the chemical solution supply unit 13 serves to pump out the nerve blocking material that is operated and stored by the operator. The pumping method of the nerve blocking material may be implemented in various ways. The chemical supply unit 13 may be mounted on a stand on which a ringer is placed.

The main tube 15 is a flexible tube through which the nerve blocking material passes, and has a filter 17 in the middle. The filter 17 filters out impurities that may be finely mixed in the neuroprotective material. By the action of the filter 17, the probability of inflammation on the abdominal wound may be significantly reduced.

In addition, the distribution connector 19, as a connecting means for connecting the main tube 15 and the plurality of distribution tubes 21, in the present embodiment connects two distribution tubes 21 to one main tube 15. Doing. In some cases, it is of course possible to apply a distribution connector 19 that can connect three or four distribution tubes (21).

The distribution tube 21 is a flexible tube that delivers the neuroprotective material that has passed through the distribution connector 19 to the catheter 27. In particular, each of the distribution tubes 21 is provided with a flow rate control unit 23 for finely controlling the flow rate of the neuroprotective material passing through the distribution tube 21. The flow rate control unit 23 can also manipulate the patient himself.

The catheter 27 is connected to the dispensing tube 21 via the catheter connector 25 as a flexible tube partially inserted into the abdomen. In addition, the tip portion of the catheter 27 is provided with an anchor tip (33).

The anchor tip 33 serves to maintain the catheter 27 in the abdomen. In other words, the catheter 27 set to be positioned at the distal end at the target position in the abdomen is maintained at the setting position. For example, to avoid retreating from the installation location or falling out of the body for reasons of patient movement or other reasons. In other words, it keeps you stuck.

For this purpose, the tip of the catheter 27 is provided with an anchor tip 33. The anchor tip 33 is a hollow member having a passage portion 33b communicating with the through passage 27a of the catheter 27 and has a plurality of protrusions 33a on its outer circumferential surface. Since the projection part 33a is formed in the anchor tip 33 as mentioned above, the catheter 27 is not pulled out unless the catheter 27 is pulled intentionally. Naturally, the pattern of the protrusion part 33a may be changed in various ways.

The anchor tip 33 can determine its position from the outside through the ultrasonic imaging device. That is, the position of the anchor tip 33 inserted into the abdomen can be understood through the ultrasonic imaging apparatus. To this end, the anchor tip 33 is made of a material that responds to the ultrasonic wave.

FIG. 3 is a perspective view illustrating the introducer 29 and the trocar 31 constituting the injector set together with the injector shown in FIG. 1, and FIG. 4 is a view illustrating an internal configuration of the trocar shown in FIG. It is a cross section. 5 is a view showing a state in which the introducer shown in FIG. 3 is divided in half.

The introducer 29 and the trocar 31 are used before use of the injector 11 described with reference to FIG. 1. That is, to secure a passage for reaching the target point in the abdomen with the catheter 27 of the injector 11.

The introducer 29 has a hollow guide (29a) and the longitudinal guide portion extending in the longitudinal direction and inserted into the body during the procedure, the handle fixed to the rear end of the hollow guide (29a) 29c).

The hollow guider (29a) is a member having a constant diameter and extending in the longitudinal direction, enters the body with the piercing tube (31a) accommodated therein, and reaches the target point to apply the neuroprotective material.

In particular, the introducer 29 is made of a synthetic resin as a whole, and as shown in Figure 5, it can be divided in half around the longitudinal cutting line. For example, the handle 29c may be physically pulled in the direction of the arrow f to divide the handle 29c. The reason why the inducer 29 can be divided as described above will be described later.

In addition, the handle 29c is a portion held by the hand to adjust the position of the hollow guider (29a) has a fastening portion (29d) on the upper surface. The fastening portion 29d is a groove providing the accommodation space 29f and has a locking jaw 29e on a portion of its inner circumferential surface. The lower portion of the locking jaw 29e is also an accommodation space 29f.

The fastening portion 29d is a groove for accommodating and fixing the detachable plate 31c provided in the trocar 31. The outer circumferential surface of the detachable plate 31c has the same shape as the shape of the inner circumferential surface of the inlet portion of the fastening portion 29d. Therefore, when the detachable plate 31c is rotated by 90 degrees clockwise or counterclockwise while being inserted into the accommodation space 29f, the trocar 31 may be coupled to the introducer 29.

In the state in which the trocar 31 and the introducer 29 are coupled as described above, the blade portion 31b of the trocar 31 may be exposed to the outside of the tip of the hollow guider 29a to penetrate the skin tissue and be inserted into the body. .

On the other hand, the trocar 31, the piercing tube (31a) is passed through the interior of the hollow guider (29a) exposed to the outside of the hollow guider (29a), and installed inside the piercing tube (31a) And a longitudinally reciprocating injection tube 31e and a support means 31v fixed to the rear end of the piercing tube 31a and reciprocally supporting the injection tube 31e.

The piercing tube 31a is a tube of constant diameter made of stainless steel and has a blade portion 31b at its tip. The blade portion 31b is a portion where a sharp blade is formed so as to more easily penetrate the muscle layer when the piercing tube 31a enters the body.

In addition, the rear end of the piercing tube (31a) is fixed to the housing (31t) of the support means (31v). The piercing tube 31a and the housing 31t form one body.

The injection tube 31e has a tip portion in the form of a hemisphere, and has a plurality of ejection holes 31f on the outer peripheral surface of the tip portion. The ejection hole 31f is a passage for ejecting the neuroprotective material injected through the syringe 35. Of course, the nerve blocking material ejected through the ejection hole 31f is applied to the target point.

In addition, the rear end of the injection tube (31e) is inserted into the internal space (31m) of the housing (31t). An internal configuration of the support means 31v will be described first with reference to FIG. 4.

The support means 31v is composed of a housing 31t providing an internal space 31m and springs 31n and 31p provided in the housing 31t.

The internal space 31m is a space part for accommodating the rear end of the injection tube 31e and is opened to the outside through the opening 31u. The opening 31u forms a syringe linkage 31s as a cylindrical passage. The syringe connection portion 31s is a portion to which the syringe 35 for injecting the nerve blocking material is fixed.

In addition, the expansion tube 31r is installed between the rear end of the injection tube 31e and the opening 31u. The expansion pipe (31r) is a stretchable conduit in the longitudinal direction, and delivers the neurotransmitter injected from the syringe 35 to the injection tube (31e).

In addition, the protrusion 31h is formed on the outer circumferential surface of the injection tube 31e. The protrusion 31h protrudes from the outer circumferential surface of the injection tube 31e and is spaced apart from the inner circumferential surface of the inner space 31m, and has springs 31n and 31p at upper and lower portions thereof.

The springs 31n and 31p elastically support the injection tube 31e and maintain the protrusion distance z at the tip of the injection tube 31e with respect to the piercing tube 31a in a state where no external force is applied. It plays a role.

In particular, when the trocar 31 encounters a resistance layer (eg, muscle layer) while being inserted into the body, the injection tube 31e is pushed in the direction of arrow a. At this time, of course, the spring 31n is compressed. As the injection tube 31e is pushed into the piercing tube 31a, the blade portion 31b can act.

After the trocar 31 passes through the resistive layer, the ejection hole 31f is exposed again to the outside of the piercing tube 31a by the elastic restoring force of the spring 31n, so that the neurotransmitter can be injected. .

The procedure using the pain control neuro blocker injector set having the above configuration is as follows.

First, the trocar 31 is inserted into the hollow guider 29a through the fastening portion 29d of the introducer 29, and the fastening portion 29d and the detachable plate 31c are coupled to each other.

In this state, the housing 31t and the handle 29c are held, and the piercing tube 31a and the hollow guider 29a are inserted into the body so that the ejection hole 31f reaches the target point. The target point is the wound area to which the neuroprotective substance is applied. In addition, of course, the position of the tip of the injection tube (31e) through the imaging device during the procedure of course.

If the injection tube (31e) is in place through the above process, after connecting the syringe 35 to the syringe connection portion (31s) to inject the nerve blocking material first. The nerve block material supplied from the syringe 35 is discharged into the body through the spouting hole 31f via the expansion tube 31r and the injection tube 31e.

When the primary injection step of the neuroprotective material is completed, the detachable plate 31c is removed from the fastening part 29d, and the trocar 31 is removed while the introducer 29 is left. The abdominal wound site is opened to the outside through the introducer (29).

After removing the trocar 31 as described above, the catheter 27 of the prepared injector 11 is inserted into the introducer 29 so that the anchor tip 33 at the tip of the catheter 27 reaches the wound site in the abdomen. . At this time, the position of the anchor tip 33 is observed through the ultrasonic imaging equipment. Inserted anchor tip 33 is buried in the body tissue is fixed in place.

When the setting of the catheter 27 is completed, the introducer 29 is removed. In other words, the introducer 29 is taken out of the body and then divided into half by applying a force. Since the catheter 27 is connected to the dispensing tube 21 and the dispensing connector 19 is fixed to the dispensing tube 21, the inducer 29 can only be divided and removed as shown in FIG. 5. will be.

When the setting of the injector 11 is completed through the above process, the chemical solution supplying unit 13 and the flow control unit 23 are appropriately operated to supply the nerve blocking material to the wound site of the body.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

Claims (10)

As to reach the neuroprotective substance for pain control to the target point in the body, An introducer taking the form of a hollow pipe and extending in the longitudinal direction and having a part inserted into the body during the procedure, and a handle fixed to the rear end of the hollow guider; A hollow piercing tube through which the tip is exposed to the outside of the hollow guider through the inside of the hollow guider, and a blade is formed at the tip, and a nerve supplied from the outside and installed to allow longitudinal reciprocating motion inside the piercing tube. And a trocar having an injection tube having an ejection hole for delivering the blocking substance to a target point, and a trocar having support means for reciprocating the injection tube. The method of claim 1, The support means; A housing having a size that can be grasped by a user, coupled with a rear end of the piercing tube, accommodating a rear end of the injection tube, and having an inner space open to the outside through an opening; And a resilient support portion for elastically supporting the injection tube in a distal direction of the piercing tube while installed in the inner space of the housing. The method of claim 2, The opening of the housing is a pain control neuro blocker injector set, characterized in that provided with a syringe connection for coupling a syringe for injecting the nerve block material. The method of claim 3, wherein Between the rear end and the opening of the infusion tube is longitudinally stretchable, the nerve block material injector set for pain control, characterized in that it further provided with a stretch tube for delivering the nerve block material supplied from the syringe to the injection tube. The method of claim 2, Between the handle and the housing of the introducer, if necessary, a coupling means for coupling the introducer and the housing, characterized in that the pain control neuro-injector set. The method of claim 5, The coupling means; A plate-type detachable plate fixed to be spaced apart from the housing and having a predetermined thickness; A neuro-blocking substance injector set for pain control, comprising a fastening part provided on the handle of the inducer and accommodating and fixing the detachable plate. The method of claim 1, The introducer is a pain-controlling neuro blocker injector set, characterized in that the physical force can be divided on the basis of the central axis of the hollow guider by applying an external force. The method according to any one of claims 1 to 7, As used after removing the trocar from the introducer, A catheter inserted into the body through the introducer and set so that the tip part is positioned at the target point; Supplying a nerve block material to the catheter The nerve block material injector set for pain control characterized in that it comprises a drug supply means to be applied to the target point through the catheter. The method of claim 8, The chemical liquid supply means; A chemical supply unit for pumping a nerve blocking substance, Distributing connector for passing through the neuroprotective material supplied through the chemical solution supply and split into two or more flows, And a dispensing tube connected to the dispensing connector, the dispensing tube leading to the catheter. The method of claim 9, The distal end of the catheter, is inserted into the body and fixed to the surrounding tissue, the anchor tip is provided with an anchor tip is formed on the outer peripheral surface of the pain control neuroinjector set.

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