JP2001245907A - Dental refrigerant painkilling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental refrigerant painkilling apparatus capable of giving a treatment comfortable to a patient and suitable for painkilling, stopping of bleeding for stomatitis, oral mucosa in odontotherapy and pain-killing, stopping of bleeding and massage in surgical treatment in the medical science. SOLUTION: In this dental refrigerant painkilling apparatus having a holding part 44 held by an operator or an operating tool, a cold air supply means 10 connected to one end of the holding part, and a nozzle 46 connected to the other end of the holding part to jet cold air, the tip of the nozzle 46 is bent at a designated angle, and the tip of the nozzle 46 is fitted with a lesion abutting member 50 having a discharge hole 56 for discharging cold air on the holding part 44 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a dental cooling and analgesic device capable of coping with analgesia and hemostasis in stomatitis and oral inflammation in dental treatment and analgesia, hemostasis and massage in surgical treatment in medical treatment.

[0002]

2. Description of the Related Art Conventionally, cooling therapy has been used in medical treatment to reduce pain and relieve muscle tension together with thermal stimulation. Generally, heat exchange in a living body is performed in four ways: conduction, convection, radiation, and evaporation.
Caused by different mechanisms. Conduction cools the affected area using ice or the like, and is used for suppressing inflammation. Convection is a therapy that uses cold air to cool the affected area.
A very low temperature of about 0 degrees is blown to the affected area. Radiation accelerates spontaneous heat radiation by arranging a device for promoting heat radiation from the skin surface near the epidermis, but is hardly used in physical therapy. Evaporation causes a decrease in body temperature due to the consumption of heat energy when the volatile liquid evaporates due to the consumption of heat energy of the skin. Among them, convection can be expected to have a therapeutic effect in a short time, and the obtained therapeutic effect is maintained, so that it is superior to other cooling therapies.

[0003] In this cooling therapy, a cryogenic cold air therapy exists. Cryogenic cold air therapy raises the skin temperature of the affected area at once.
Since it can be cooled to 0 degrees or more, there is very little danger of reactive local hyperemia (degradation of proteins, precipitation of cryoglobulin), etc., as compared to cooling over time by other methods. In cryogenic cold air therapy, the formation of edema is suppressed by the vasoconstrictive action of cooling, so that inflammatory reactions can be weakened by suppressing local metabolism. That is, the blood flow and lymph flow are reduced by cooling, so that the cell activities of the damaged tissue, cerebrospinal fluid tissue, leukocytes and the like are suppressed, and the degradation of proteins by enzymes generated at the time of injury is also suppressed. However, there is a problem that if the cooling is performed over a long period of time, the same operation will hinder the ultimate healing. In addition, when cooled, an analgesic effect is exerted due to a decrease in nerve conduction velocity and a decrease in excitation of free nerve endings.

[0004]

Conventionally, as cryogenic cold air therapy, a device for freezing cancer cells of liver cancer is known (see Japanese Patent Application Laid-Open No. 10-5223). But,
Such a device has a problem that the refrigerating capacity is too large and is not suitable for treatment of stomatitis and mouth inflammation in dental treatment. In addition, in the treatment of stomatitis and mouth inflammation, the human body, which is called the oral cavity, is targeted at organs with a unique shape, so it is not possible to receive comfortable treatment for patients using a medical cooling device directly. There were challenges.

The present invention solves the above-mentioned problems, and
An object of the present invention is to provide a dental cooling and analgesic device that can receive a comfortable treatment for a patient and is suitable for analgesia and hemostasis of stomatitis and oral inflammation in dental treatment and analgesia, hemostasis and massage in surgical treatment in medical treatment. .

[0006]

As shown in FIG. 1, a dental cooling and analgesic device according to the present invention, which solves the above-mentioned problems, comprises a gripper 44 gripped by an operator or an operating instrument, and one end of the gripper. In the dental cooling and analgesic device having the cold air supply means 10 connected to the suction port and the jet port 46 for jetting cold air provided at the other end of the grip portion, the tip of the jet port 46 is bent at a predetermined angle. And at the tip of the spout 46
An affected part contact member 50 having a discharge hole 56 for discharging cool air is attached to the fourth side.

In the apparatus configured as described above, the cool air supply means 10 supplies cool air, and cools the air using, for example, a refrigerator or ice / liquefied nitrogen gas. Gripper 4
Reference numeral 4 denotes a posture in which the ejection port 46 has a cooling air ejection angle suitable for cooling the affected part, and has a shape that can be easily grasped by an operator or an operating instrument. The diseased part abutting member 50 is provided at the tip of the ejection port 46, and makes it possible to detachably attach a part that may touch the diseased part, thereby preventing the occurrence of bacterial infection.
Even if the affected part contact member 50 is in close contact with the affected part,
A flow path is formed such that the cool air spouted from the spout 46 flows to cool the affected part.

Preferably, the angle at which the tip bends is
With a configuration in which the angle between the direction in which the cool air is ejected and the affected part is from 30 degrees to 90 degrees, a high flow of cool air can be intensively applied to the affected part. In addition, the affected part contact member,
If it is made of a material that can be subjected to high-pressure steam sterilization, bacterial infections can be prevented and it is suitable for dental treatment and medical treatment. Further, when the dental cooling and analgesic device is configured to have a means for adjusting a flow rate of cool air spouted from the spout,
Adjustment of the flow rate of cold air becomes possible with one hand operation, and convenience is improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram illustrating an embodiment of the present invention. FIG. 1A is an overall view, and FIG. 1B is an enlarged view of a handpiece. In the figure, a cryo body 10 is a box-shaped cold air supply device, and is provided with self-propelled wheels 12 for convenience of use in a dental clinic, a clinic, or a hospital. A cryocooler that generates cool air is housed inside the cryo body 10, but the cryocooler can be replaced by one that can cool air such as liquefied nitrogen gas or ice to generate cool air. The arm 20 is a cantilever having one end fixed to the cryo main body 10, supports the flexible tube 30, and guides it to the vicinity of the patient.

The tube 30 is provided with a passage for flowing cool air in the center thereof, and is made of a material such as rubber having a low thermal conductivity in order to keep the cool air insulated from outside air. The fitting 32 is provided at one end of the tube 30 and is connected to a cool air supply port of the cryo body 10 in a state where cool air does not leak. The fitting 34 is provided at the other end of the tube 30 and is connected to the inlet 42 of the handpiece 40 in a state where cool air does not leak. A patient contact member 50 is detachably attached to the ejection port 46 of the handpiece 40.

FIG. 2 is a structural perspective view of the handpiece.
The handpiece 40 is provided with a grip portion 44 so that the operator can easily hold the handpiece. The gripping portion 44 has a fingertip contacting portion 44a of a portion that is hard to slip like rubber and a projection, and a body portion 44b that grips the handpiece 40 in a pen shape with the back of the hand together with the fingertip contacting portion 44a. The inlet 42 has a fitting connection portion 42 a having a convex and concave portion for preventing leakage of cool air when connected to the fitting 34. The ejection port 46 ejects cool air, and has an extended portion 46a extending from the grip portion 44 and a bent portion 46b bent at a predetermined angle に 対 し て with respect to the extended portion 46a.
The extension part 46a has a length 12 of 2 to 5 cm, the bent part 46b has a length 11 of 1 to 3 cm, and the predetermined angle ψ is such that the angle between the direction in which the cold air is ejected and the affected part is 30 to 90 degrees. A value that is easy to maintain in a state, particularly preferably in a state of 60 degrees to 90 degrees, is selected, and a high flow of cold air can be intensively applied to the affected part. The inner diameter φ of the spout 46 is 5 m
m to 10 mm.

The flow control valve 48 is provided at a position where the operation knob 48a can be easily operated with one hand when the grip portion 44 is gripped by the thumb and the index finger. The flow control valve 48 adjusts the amount of cool air jet from the jet port 46, and has a configuration capable of continuously adjusting the amount of cool air jet. The flow control valve 48 is
A configuration in which the on state and the off state are switched may be adopted. The operation knob 48a is a single model and has a shape that allows one-handed operation with either the right hand or the left hand.

FIG. 3 is a structural perspective view of the patient contact member.
The patient abutment member 50 prevents the spout 46 from directly contacting the patient's saliva or blood wet area such as the gums, thereby preventing the patient from being infected with a bacterial infection. I have. The patient abutment member 50 is preferably made of a material that is not deformed and deformed by high-pressure steam sterilization (autoclave) at about 132 degrees Celsius. For example, a material that is easy to mold and has high heat resistance, such as polycarbonate, nylon, or fluororesin, is used. I have. The affected part abutment surface 52 touches the affected part. For example, in the case of gums, the affected part contact surface 52 may have a shape that can provide an appropriate cooling effect according to each part such as the front teeth, the canines, and the back teeth.

The ejection port contact surface 54 is a surface to be joined to the ejection port 46, and the height H1 is about 1/3 to half the height H of the patient contact member 50. The discharge hole 56 is provided on the peripheral surface where the ejection port contact surface 54 is formed.
6 forms a flow path through which the cool air blown out can cool the affected part. The inner diameter φ1 of the spout contact surface 54 is the spout 4
The outer diameter φ2 is suitable for the thickness of the discharge hole 56. Since the discharge hole 56 is not provided on the peripheral surface of the patient contact member 50 on the affected part contact surface 52 side, the inner diameter is larger than the inner diameter φ1 of the ejection port contact surface 54.

The operation of the apparatus having the above-mentioned configuration will be described below. FIG. 4 is a transition diagram of the nozzle exhaust temperature. Here, in order to indirectly measure the transition of the skin temperature, the tip temperature of the ejection port 46 is measured. In the figure, “■” indicates a low flow rate and “*” indicates a high flow rate. The set cold air supply flow rate from the cryo body 10 is 300 l /
Min, and 600 l / min at high flow rates. At high flow rate, equilibrium temperature (about -2 degrees Celsius) 5 minutes after the start of eruption
Can cool down quickly. Since the cryogenic cold air therapy is performed for the purpose of analgesia and hemostasis, a high-flow therapy in a relatively short time of about 3 to 5 minutes is suitable for a segmental site on sensory nerve running.

On the other hand, at a low flow rate, 1
It is cooled down to the equilibrium temperature (about -2 degrees Celsius) after 5 minutes, so it is suitable for massage because of slow cooling. In the case of massage, in order to perform a massage with cold air equally to the entire muscle with a disorder, the angle between the direction in which the cold air is blown out and the affected part is kept at 30 to 90 degrees, particularly preferably 30 to 45 degrees. Is maintained.
In the case of massage, the treatment time is increased from 5 minutes to 10 minutes, so it is preferable to hold the handpiece 40 in a fixed posture by using a jig.

In the above embodiment, the case where the affected part is the gum is shown, but the present invention is not limited to this. In the case of hemostasis in oral surgery, the affected part may be inside the oral cavity. In addition, although the case of dental treatment has been described as an example, the present invention may be used for cooling massage of muscles in medicine, and for pain relief and hemostasis at the time of fracture. It may also be used for analgesia and hemostasis in animal surgery.

[0018] Since the cryogenic air treatment does not use a drug such as an anesthetic, it has little effect on patients with allergic diseases, and can simplify the medical consultation by a doctor. In addition, since there is no need for injection anesthesia associated with the procedure, little fear of injection is given to infant patients as in pediatrics and pediatric dentistry, and parents take infant patients to a medical institution. Will be easier.

[0019]

As described above, according to the present invention,
Dental cooling and analgesic having a gripper to be gripped by an operator or an operating instrument, cool air supply means connected to one end of the gripper, and a spout provided at the other end of the gripper for blowing cool air. In the apparatus, the tip of the ejection port is bent at a predetermined angle, and the affected section contact member having a discharge hole for discharging cool air is attached to the tip of the ejection port on the gripping portion side. Even if the member is in close contact with the diseased part, since the cool air is discharged from the discharge hole, a cooling effect of the diseased part can be obtained. For this reason, even when the affected area is covered with saliva or blood, such as the gums, the infection of bacterial infection can be prevented by replacing and disinfecting the affected area abutment member for each patient, and dental treatment and medical treatment
Suitable for animal analgesia, hemostasis and cooling massage.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an embodiment of the present invention.
FIG. 1A is an overall view, and FIG. 1B is an enlarged view of a handpiece and a tube.

FIG. 2 is a configuration perspective view of a handpiece.

FIG. 3 is a configuration perspective view of an affected part contact member.

FIG. 4 is a transition diagram of a nozzle tip exhaust temperature.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cryo main body (cold air supply means) 20 Arm 30 Tube 40 Handpiece 42 Inlet 44 Grip 46 Spout 48 Flow control valve 50 Diseased part contact member 56 Discharge hole

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Ichizuki Ichi No.3-3, Toyotominami, Nerima-ku, Tokyo F-term within Ito Chosha Co., Ltd. 4C052 AA10 BB12 CC02 CC07 CC21 CC30 DD01 4C099 AA02 CA14 EA02 GA30 JA20 TA03 TA10 4C100 AD40

Claims (4)

[Claims] 1. A gripping portion gripped by an operator or an operating instrument, a cool air supply means connected to one end of the gripping portion, and a spout provided at the other end of the gripping portion for blowing out cold air. The tip of the spout is bent at a predetermined angle, and the affected part abutting member having a discharge hole for discharging cool air to the grip portion side is attached to the tip of the spout. A cooling and analgesic device for dental use characterized by being performed. 2. The dental cooling and analgesic device according to claim 1, wherein the angle at which the distal end bends is such that the angle between the direction in which the cool air is ejected and the affected part is 30 to 90 degrees. 3. The dental analgesic device according to claim 1, wherein the affected part contact member is made of a material that can be subjected to a high-pressure steam sterilization process. 4. The dental cooling and analgesic device according to claim 1, wherein the dental cooling and analgesic device has means for adjusting a flow rate of cool air spouted from the spout.