CN211560065U

CN211560065U - Quantitative test equipment for pain sensitivity

Info

Publication number: CN211560065U
Application number: CN201921489639.5U
Authority: CN
Inventors: 邹最; 房尚萍; 周苗; 刘晓杰; 韦华伟; 蒋叶; 胡心屿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-08
Filing date: 2019-09-08
Publication date: 2020-09-25
Anticipated expiration: 2029-09-08

Abstract

The utility model discloses a sense of pain sensitivity quantitative test equipment relates to medical instrument technical field. The equipment comprises an equipment main body part and a consumable part which are detachably connected, and a pressure sensor arranged on the equipment main body part or the consumable part; the device can preset a pressure value, and when the pressure sensor monitors that the pressure at the front end of the stabbing pain needle reaches the preset pressure value, the control system controls the push rod to retract to finish the test; or when the pressure at the front end of the stinger does not reach the preset pressure value but the testee has pain and withdraws from the stinger, recording the pressure value during the withdrawal and displaying the pressure value through the display module. The utility model discloses an equipment both can give the pressure value and measure, can survey the pressure value according to the experience of testee again, and its convenient operation, test process can repeatedly reproduce, can avoid cross infection simultaneously.

Description

Quantitative test equipment for pain sensitivity

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to test instrument of quantitative test sense of pain.

Background

Human anesthesia is a reversible functional inhibition of the central and/or peripheral nervous system, produced by drugs or other means, which is characterized primarily by loss of sensation, particularly pain.

Since the anesthetized person has individual difference in pain sensitivity, there are great individual differences in the administration dosage for the pre-operation anesthesia, the onset time after the anesthesia, the administration dosage for the post-operation analgesia, and the like. The anesthesiologist can usually take the patient evaluation by means of needle prick, hand pinch, etc. because the pain is the subjective feeling of the clinical patient, it is difficult to quantify it objectively, so it is still done according to the patient's complaint by some scales such as language rating scale (VRS), etc., and then the doctor takes the medicine according to the experience. However, the above-mentioned methods are too subjective for the pain stimulation of the patient, and the test procedure is not repeatable and reproducible. Moreover, the dosage accuracy of the drug used in the test conclusion obtained based on the subjective test mode is poor, and the dosage needs to be adjusted according to the actual feeling of the patient in the process of the anesthetic infusion, so that the patient is suffering too much.

Various pain measuring devices exist in the prior art, and the testing principle is mainly divided into two types of electrical stimulation and mechanical stimulation:

electrical stimulation is used to quantitatively test sensitivity, mainly by using current to simulate mechanical stimulation. However, the sensitivity of the human body to the two stimulation modalities differs, so that the results of the electrical stimulation cannot be equated with the pain sensitivity of the patient to the mechanical stimulation.

Mechanical stimulation is the use of a sharp object to stimulate the skin of a patient and quantitatively test sensitivity by applied pressure, and current products suffer from the following drawbacks: (1) the product is reused and has the risk of cross infection. (2) The sharp object has too fast moving speed, the pressure is suddenly increased, and the test precision is low.

Disclosure of Invention

The utility model aims to provide a: overcomes the defects of the prior art and provides quantitative test equipment for pain sensitivity. The utility model discloses a sense of pain sensitivity quantitative test equipment both can give the pressure value and measure, can measure the pressure value according to the experience of the person of being tested again, and its convenient operation, test procedure can repeatedly reproduce, can avoid cross infection simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

a pain sensitivity quantitative test device comprises a device main body part and a consumable part which are detachably connected, and a pressure sensor arranged on the device main body part or the consumable part;

the equipment main body part comprises a power supply, a control system, a push rod, an operation module and a display module, the pressure value is preset through the operation module and then transmitted to the control system, and the display module can display the preset pressure value;

the consumable part comprises a pricking needle for applying stimulation, and pressure data of the pricking needle is acquired by the pressure sensor and transmitted to the control system;

when the pressure sensor monitors that the pressure of the front end of the stinging needle reaches the preset pressure value, the control system controls the push rod to retract to finish the test; or when the pressure at the front end of the stinger does not reach the preset pressure value but the testee has pain and withdraws from the stinger, recording the pressure value during the withdrawal and displaying the pressure value through the display module.

Further, the consumable portion further comprises a lancet rebound member and a pressure cushioning member;

the pressure buffering component is arranged between the pricking needle and the push rod and is used for buffering the pressure applied to the pricking needle when the push rod extends out;

the pricking needle rebounding component is arranged at the front end of the consumable part and is in driving connection with the pricking needle, and is used for driving the pricking needle to rebound and reset when the push rod retracts.

Further, the quantitative pain sensitivity testing device is designed to be in a pen shape, the device main body part forms an upper pen barrel part, and the consumable part forms a lower pen barrel part.

Further, the operation module is a button, a key, a knob or a touch operation screen.

Further, the display module comprises an electronic display screen, and the electronic display screen is arranged at the top and/or the side of the upper end of the equipment main body part.

Further, the pressure sensor is positioned in the stabbing pain needle, at the rear end of the stabbing pain needle, at the front end of the push rod, at the rear end of the push rod, in the pressure buffering component or at the rear end of the pressure buffering component.

Further, the consumable part comprises a shell, a cavity is formed in the shell, a closed air section is formed in the cavity through the tail part of the stinging needle and the front part of the push rod, and the air section is used as an air medium buffer structure to form the pressure buffer component;

or a spring structure is arranged in the cavity to form the pressure buffering component, and the spring structure is positioned between the pricking needle and the push rod.

Furthermore, the pricking needle resilience component is an elastic structure connected with the tail of the pricking needle, the elastic structure is compressed when the push rod pushes the pricking needle to extend out, and the elastic structure recovers to deform to drive the pricking needle to rebound and reset when the push rod retracts.

Further, the push rod is an electric push rod, a hydraulic push rod or a pneumatic push rod.

The utility model discloses owing to adopt above technical scheme, compare with prior art, as the example, have following advantage and positive effect: 1) the pain sensitivity quantitative test equipment can measure a given pressure value and can measure the pressure value according to the feeling of a testee, and the display result is more accurate and objective; 2) the device is convenient to operate, the test process can be repeated and reproduced, and the device is simple in structure, safe and reliable; 3) cross-contamination can be avoided.

Drawings

Fig. 1 is a schematic structural diagram of a quantitative pain sensitivity testing apparatus provided in an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the main body portion and the consumable portion of the apparatus according to an embodiment of the present invention.

Fig. 3 to 4 are operation example diagrams of pressure buffering and rebound of the lancet according to an embodiment of the present invention.

Description of reference numerals:

the apparatus 100, the apparatus main body 110, the consumable part 120, the pressure sensor 130;

a power supply 111, a control system 112, a push rod 113, an operation module 114 and a display module 115;

a lancet 121, a lancet resilient member 122, and a pressure buffering member 123.

Detailed Description

The pain sensitivity quantitative test device disclosed by the invention is further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects. In the drawings of the embodiments described below, the same reference numerals appearing in the respective drawings denote the same features or components, and may be applied to different embodiments. Thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

It should be noted that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes should fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and purposes that the present invention can achieve. The scope of the preferred embodiments of the present invention includes other implementations in which functions may be performed out of the order described or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

Examples

Referring to fig. 1, a schematic structural diagram of a quantitative pain sensitivity testing device according to an embodiment of the present invention is shown.

A quantitative test apparatus 100 for pain sensitivity includes an apparatus main body 110 and a consumable part 120 detachably connected, and a pressure sensor 130 provided on the apparatus main body 110 or the consumable part 120.

The apparatus main body part 110 and the consumable part 120 are detachably connected so that the consumable part can be replaced. The detachable connection may be, for example and without limitation, a threaded connection, a snap connection, a nested connection, or an absorption connection.

The apparatus main body 110 includes a power supply 111, a control system 112, a push lever 113, an operation module 114, and a display module 115. The user may preset a pressure value through the operating module 114, the preset pressure value may be transmitted to the control system 112, and the display module 115 may display the preset pressure value.

The consumable part 120 comprises a stinger 121 for applying a stimulus. The pain-relieving needle 121 has a needle tip, and a needle seat may be further provided at the needle tail portion of the pain-relieving needle. In specific implementation, the size of the needle tip of the prick needle 121 is preferably: the radius R is 0.1-1 mm.

The pressure sensor 130 is capable of collecting pressure data from the lancet 121 and transmitting the pressure data to the control system 112.

In this embodiment, the pressure sensor 130 may be disposed in the pain needle, at the rear end of the pain needle, at the front end of the push rod, at the rear end of the push rod, in the pressure buffering member, or at the rear end of the pressure buffering member. Preferably, in order to improve the data collection accuracy, the pressure sensor 130 is disposed in the lancet 121 or at the rear end of the lancet 121, so that the consumable part and the device body part realize data link, and fig. 1 illustrates a case where the pressure sensor 130 is disposed at the rear end (tail) of the lancet.

As an example of a typical operation manner, in the test, after the device main body 110 is connected to the consumable part 120, the user may set a preset pressure value with the aid of the display module 115 through the operation module 114.

Then, the device is started, the push rod driving structure drives the push rod 113 to extend out to apply pressure to the lancet 121 of the consumable part under the control of the control system, the lancet 121 contacts the tested person, and the pressure data of the lancet 121 is collected by the pressure sensor 130 and transmitted to the control system 112.

When the pressure sensor 130 monitors that the pressure at the front end of the prick needle 121 reaches the preset pressure value, the control system 112 controls the push rod 113 to retract to finish the test; or, when the pressure at the front end of the lancet 121 does not reach the preset pressure value but the testee has pain and withdraws from the lancet 121, the pressure value during the withdrawal is recorded and displayed through the display module 115.

The push rod 113 may be an electric push rod, a hydraulic push rod or a pneumatic push rod. Different push rod driving structures can be provided according to the type of the push rod 113, for example, the push rod driving structure of the electric push rod can adopt a micro motor, and the micro motor drives the push rod to extend and retract.

The control circuit of the push rod driving structure is connected with the control system 112 and is controlled by the control system 112. In operation, the control system 112 can control the pressure application rate, preferably, the needle tip pressure application rate V is less than or equal to 10N/s.

Of course, the user may adjust the above-mentioned pressing rate according to the test requirement, and specifically, for example and without limitation, the control system may provide a pressing rate setting function, the user may set the required pressing rate through the operation module on the pen barrel, and the control system may control the movement of the driving structure according to the pressing rate.

In this embodiment, the quantitative pain sensitivity testing device 100 is preferably designed in a pen shape, as shown in fig. 2, the device main body 110 forms an upper pen container, and the consumable part 120 forms a lower pen container. The outer diameter of the pen container of the pain sensitivity quantitative test pen is preferably 10-20 mm. Of course, the test pen may be provided with a holding part for the user to hold, and a hanging part for the user to wear the test pen on clothes and a pocket, as required.

The power supply 111 can be packaged in the pen container during setting, and can also be externally hung through an electric lead. The power source may be a dry cell, a storage battery, a button cell, etc., as shown in fig. 2, which illustrates a manner of disposing the battery in the device main body portion 110, at this time, the device main body portion 110 has a housing, a hollow cavity is formed in the housing, and the battery, a circuit element of the control system, and the push rod are packaged in the cavity. Preferably, a charging interface can be further provided on the housing to charge the battery and/or supply power to the electric element.

In this embodiment, the operation module 114 is preferably a button, a key, a knob, or a touch panel. The operation module 114 is electrically connected to the control system 112 for data transmission, and a user can preset various parameters through the operation module 114, and preset data can be transmitted to the control system.

The display module 115 can be electrically connected to both the operation module 114 and the control system 112, and can perform data transmission. Specifically, the display module 115 may include an electronic display screen, and the preset parameters of the operation module 114 may be displayed through the display module to facilitate the user to operate. The electronic display screen is preferably disposed on the top and/or the side of the upper end of the device main body 110.

With continued reference to fig. 2, the consumable portion 120 may further include a lancet resilient member 122 and a pressure cushioning member 123.

The pressure buffering member 123 is disposed between the lancet 121 and the push rod 113 to buffer the pressure applied to the lancet 121 when the push rod 113 is extended.

The needle rebounding member 122 is disposed at the front end of the material consuming portion 120, and is in driving connection with the needle 121, so as to drive the needle 121 to rebound and return when the push rod 113 retracts. The driving connection means that the lancet resilient member 122 can drive the lancet 121 to move.

When provided, the pressure buffering member 123 may buffer an air medium. The following structure can be preferably employed:

the consumable part 120 includes a housing, a cavity is formed in the housing, and a closed air section is formed in the cavity through the tail part of the stinger 121 and the front part of the push rod 113, and the air section serves as an air medium buffer structure to form the pressure buffer component. When the push rod 113 is driven to extend, the push rod applies pressure to the pressure buffering member 123 at a certain speed, and the pressure buffered by the pressure buffering member 123 is slowly applied to the front end of the pain needle. Therefore, the extension speed of the push rod can be converted into soft pressure to be applied to the pricking needle through the pressure buffering component 123, and the phenomenon that the pricking needle is too fast in advancing speed and the pressure is suddenly increased to influence the testing precision is avoided.

Alternatively, the pressure buffering member 123 employs a spring structure for buffering. At this time, a spring structure is provided in the aforementioned cavity to constitute the pressure buffering member, the spring structure being located between the lancet 121 and the push rod 113. The working principle is similar to that of the prior art, when the push rod 113 is driven to extend, the push rod applies pressure to the spring at a certain speed, and the pressure buffered by the spring is slowly applied to the front end of the pricker needle.

The lancet resilient member is preferably an elastic structure connected to the tail of the lancet 121 in this embodiment. When the push rod 113 pushes the prick needle 121 to extend, the elastic structure is compressed, and when the push rod 113 retracts, the elastic structure recovers deformation so as to drive the prick needle 121 to rebound and reset.

The elastic structure comprises various structures which can be deformed when being stressed and can be restored when the stress is relieved, such as common springs, leaf springs, flexible plastics and the like. The preferred spring configuration of this embodiment is described in connection with fig. 3 and 4 for the operation of the lancet resilient member.

After the equipment main body part of the pain sensitivity quantitative test pen is matched and contacted with the front end consumable part, the equipment main body part is in an original state shown in figure 3.

Actuating a push rod drive structure (e.g., a micro-motor) drives the push rod 113 downward. In the propelling process, the driving force of the push rod driving structure can be preset, the propelling speed of the push rod is controllable, and the lower end of the push rod moves downwards (similar to a piston) in the cavity of the consumable part, so that the pressure buffering component 123 is promoted to move downwards, and the pricking needle 121 is further driven to move downwards and extend out. Referring to fig. 4, the spring is compressed during the extension of the lancet 121, and the extended lancet 121 contacts the skin of the test subject. Preferably, the front end of the material consuming part is provided with a flared enlargement which facilitates the placement of the device on the skin of the tester by the user.

When the test is finished, the push rod driving structure (such as a micro motor) drives the push rod 113 to retract upwards under the control of the control system, the push rod pressure applied to the prick needle 121 is relieved, and the spring rebounds and recovers to drive the prick needle 121 to rebound and reset. The pain-relieving needle 121 is retracted into the cavity, and the tail of the pain-relieving needle 121 and the lower end of the push rod 113 are also reset to the original state shown in fig. 3.

In the description above, the disclosure of the present invention is not intended to limit itself to these aspects. Rather, the various components may be selectively and operatively combined in any number within the intended scope of the present disclosure. In addition, terms like "comprising," "including," and "having" should be interpreted as inclusive or open-ended, rather than exclusive or closed-ended, by default, unless explicitly defined to the contrary. All technical, scientific, or other terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. Common terms found in dictionaries should not be interpreted too ideally or too realistically in the context of related art documents unless the present disclosure expressly limits them to that. Any alterations and modifications of the present invention based on the above disclosure will be apparent to those skilled in the art from the present disclosure, and all such modifications and modifications are intended to fall within the scope of the appended claims.

Claims

1. A quantitative pain sensitivity testing apparatus, characterized by: the device comprises an equipment main body part and a consumable part which are detachably connected, and a pressure sensor arranged on the equipment main body part or the consumable part;

2. The quantitative test apparatus for pain sensitivity of claim 1, wherein: the consumable portion further comprises a lancet rebound member and a pressure cushioning member;

3. The quantitative test device of pain sensitivity according to claim 1 or 2, characterized in that: the pain sensitivity quantitative test equipment is designed to be in a pen shape, the equipment main body part forms an upper pen barrel part, and the consumable part forms a lower pen barrel part.

4. A quantitative test device for pain sensitivity according to claim 3, characterised in that: the operation module is a button, a key, a knob or a touch operation screen.

5. A quantitative test device for pain sensitivity according to claim 3, characterised in that: the display module comprises an electronic display screen, and the electronic display screen is arranged at the top and/or the side of the upper end of the equipment main body part.

6. The quantitative test apparatus for pain sensitivity of claim 1, wherein: the pressure sensor is positioned in the stabbing pain needle, at the rear end of the stabbing pain needle, at the front end of the push rod, at the rear end of the push rod, in the pressure buffering component or at the rear end of the pressure buffering component.

7. The quantitative test apparatus for pain sensitivity of claim 2, wherein: the consumable part comprises a shell, a cavity is formed in the shell, a closed air section is formed in the cavity through the tail part of the stinging needle and the front part of the push rod, and the air section is used as an air medium buffer structure to form the pressure buffer component;

8. The quantitative test apparatus for pain sensitivity of claim 7, wherein: the pricking needle resilience component is an elastic structure connected with the tail of the pricking needle, the elastic structure is compressed when the push rod pushes the pricking needle to extend out, and the elastic structure recovers to deform to drive the pricking needle to rebound and reset when the push rod retracts.

9. The quantitative test apparatus for pain sensitivity of claim 1, wherein: the push rod is an electric push rod, a hydraulic push rod or a pneumatic push rod.