CN209733957U - Medical probe - Google Patents

Abstract

The utility model discloses a medical probe, which comprises a metal needle body, a handle fixedly connected with one end of the metal needle body and a lead connected with the metal needle body; the tail end of the other end of the metal needle body is provided with a sphere, and the diameter of the sphere is 0.3mm-0.8 mm. The utility model discloses a keep away from the end of handle one end at the metal needle body and set up the spheroid and set up spheroidal diameter into 0.3mm-0.8mm, guarantee that medical personnel can reduce because of the terminal too sharp-pointed of metal needle body at the in-process of using medical probe, lead to causing the possibility of secondary injury to tissue or organ in the use, can effectively detect out the functional state of tissue or organ again. The utility model discloses can wide application in the medical instrument field.

Description

Medical probe

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a medical probe.

Background

Microsurgical techniques involve fine surgery on fine tissue by a surgeon using fine microsurgical instruments and suture material under magnification with the aid of a surgical microscope. By means of the action of the operation microscope, the tissues are enlarged under the operation microscope, so that a doctor can see not only the tiny tissues invisible to the eyes, but also the stereoscopic impression, and the doctor can dissect, cut and suture various tissues accurately.

Standard monopolar probes commonly used in surgery today have a single stimulation electrode. Such standard monopolar probes are used primarily for gross stimulation of tissues or organs with large contact surfaces. In the ear microsurgery, since the operation field and the contact surface are both performed under microscopic magnification, if the stimulation end of the monopolar probe is too sharp, it is easy to damage the tissue or organ, and if the stimulation end of the monopolar probe is too large, it is difficult to detect whether the tissue or organ is functioning normally. However, the diameter of the stimulation end of the present domestic monopolar probe is larger than or equal to 1 mm, so there is a great need to improve the stimulation end of the monopolar probe.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a: provided is a medical probe which can effectively detect the functional state of a tissue or an organ during an operation and can reduce the possibility of secondary damage during the operation.

The utility model adopts the technical proposal that: a medical probe comprises a metal needle body, a handle fixedly connected with one end of the metal needle body, and a lead connected with the metal needle body; the tail end of the other end of the metal needle body is provided with a sphere, and the diameter of the sphere is 0.3mm-0.8 mm.

Further, the other end of the wire is provided with a plug or a socket.

Furthermore, an insulating layer is arranged on the outer surface of the handle.

Furthermore, the insulating layer is provided with anti-skid grains.

Further, the insulating layer is a PEC plastic.

Further, the metal needle body is a filiform needle.

The utility model has the advantages that: through set up the spheroid and set up the diameter of spheroid for 0.3mm-0.8mm at the end that the handle one end was kept away from to the metal needle body, guarantee that medical personnel can reduce because of the terminal too sharp-pointed of metal needle body in the in-process of using medical probe, lead to causing the possibility of secondary damage to tissue or organ in the use, can effectively detect out the functional state of tissue or organ again.

Drawings

Fig. 1 is a schematic structural view of a medical probe according to the present invention;

FIG. 2 is a test waveform of a prior art medical probe;

Fig. 3 is a test waveform of the medical probe of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, a medical probe includes a metal needle body 1, a handle 2 fixedly connected to one end of the metal needle body 1, and a wire 3 connected to the metal needle body 1; the tail end of the other end of the metal needle body 1 is provided with a sphere 11, and the diameter of the sphere 11 is 0.3mm-0.8 mm.

Specifically, the metal needle body has high strength and toughness, and the needle body is straight and smooth, wear-resistant and long in service life. In this embodiment, the metal needle body penetrates through the handle, and the conducting wire and one end of the metal needle body, which is far away from the sphere, are electrically connected outside the handle; in other embodiments, the end of the metal needle body far away from the sphere is wrapped in the handle, and the conducting wire penetrates into the handle to be electrically connected with the metal needle body.

In some embodiments, the diameter of the cross section of the metal needle body is gradually changed, the diameter of the cross section of the end, close to one end of the sphere, of the metal needle body is smaller than that of the sphere, and the end, close to one end of the sphere, of the metal needle body is fixedly connected with the sphere.

In some embodiments, when the diameter of the sphere is less than 0.3mm, the metal needle body is prone to cause secondary damage to tissues or organs during surgery; with the increase of the diameter of the sphere, the probability of secondary damage of the metal needle body to tissues or organs is gradually reduced in the operation process, but with the increase of the diameter of the sphere, the contact area of the metal needle body and the tissues or organs is increased, which is not beneficial to the use of the metal needle body under a microscope; when the diameter of the sphere is larger than 0.8mm, the probability of secondary damage to tissues or organs caused by the metal needle body is very low in the operation process, but the contact surface between the metal needle body and the tissues or organs is large, the operation visual field under a microscope can be blocked, and the functional state of the tissues or organs cannot be accurately detected by the metal needle body. Therefore, it is appropriate to set the diameter of the sphere to 0.5mm, which neither easily causes damage to tissues or organs nor obstructs the visual field.

Fig. 2 shows test waveforms obtained by testing with a medical probe of the prior art, a cochlear window niche of a patient is tested with a clinical facial nerve probe (diameter is 1.5mm), a current of 3mA is input through the facial nerve probe as a stimulation signal of the cochlear window niche, and the cochlear window niche is tested 3 times to obtain a waveform a, a waveform B and a waveform C, respectively. As can be seen from analyzing the waveform a, the waveform B, and the waveform C in fig. 2, the waveform obtained by testing the cochlear niche using the medical probe of the prior art has poor repeatability.

Fig. 3 is the use the utility model discloses a medical probe tests the test waveform that obtains, adopts the utility model discloses a medical probe (probe tip spheroid diameter is 0.7mm) test patient's cochlea window niche, through the utility model discloses a medical probe inputs 3 mA's electric current and as the stimulus signal of cochlea window niche, tests 3 times to the cochlea window niche, obtains waveform D, waveform E and waveform F respectively. By analyzing the waveform D, the waveform E and the waveform F in fig. 3, the waveform obtained by testing the cochlear niche with the medical probe of the present invention has good repeatability. As can be seen by comparing the waveforms of fig. 2 and 3, the waveform of fig. 2 is poorly differentiated, and the waveform of fig. 3 is well differentiated.

According to the embodiment, when the medical probe in the prior art is used for testing the cochlear niche, the diameter of the probe tip is too large, so that the contact area between the probe and a tested organ or tissue is too large in the testing process, other organs or tissues are easily contacted, and the obtained testing result is not accurate enough; and the utility model discloses improve the terminal spheroid diameter of probe for in the test process, the area of contact of probe and tissue or organ reduces, and the possibility of probe and other organs or tissue contact reduces, therefore can obtain more accurate test result.

Specifically, through set up the spheroid and set up the diameter of spheroid for 0.3mm-0.8mm at the end that the handle one end was kept away from to the metal needle body, guarantee medical personnel in the in-process of using medical probe, can reduce because of the terminal too sharp-pointed of metal needle body, lead to causing the possibility of secondary damage to tissue or organ in the use, can effectively detect out the functional state of tissue or organ again.

Further preferably, the other end of the wire is provided with a plug or a socket.

Specifically, the medical probe is connected with an external device through a plug or a socket on a lead, the external device can be a medical display device, and the functional state of the tissue or organ detected by the metal needle body is displayed through the external device. Through set up plug or socket on the wire, convenience of customers inserts external equipment with the probe.

Referring to fig. 1, in a further preferred embodiment, an insulating layer 21 is provided on the outer surface of the handle 2.

Specifically, through set up the insulating layer on the handle surface, can be better avoid medical personnel to electrocute when using the probe.

Referring to fig. 1, in a further preferred embodiment, the insulating layer 21 is provided with an anti-slip pattern 211.

Specifically, through set up the antiskid on the insulating layer, the frictional force of increase handle for in the medical personnel use, medical probe is difficult to drop from the hand, guarantees the normal clear of operation.

further as a preferred embodiment, the insulating layer is a PEC plastic.

In particular, the PEC material has excellent friction resistance, dimensional stability, and electrical insulation, as well as having high hardness and strength characteristics. Through using PEC plastics, increase the utility model discloses a life to and avoid the user to electrocute.

In a further preferred embodiment, the metal needle body is a filiform needle.

Specifically, the filiform needle is a silver needle, has high strength and toughness, and a straight and smooth needle body, and also has excellent electrical conductivity and heat transfer property, so that stimulation signals can be better conducted.

In summary, the utility model arranges the sphere at the end of the metal needle body far from the handle and sets the diameter of the sphere to 0.3mm-0.8mm, which ensures that the medical care personnel can not only reduce the possibility of secondary injury to the tissue or organ caused by the over sharp end of the metal needle body in the using process, but also effectively detect the functional state of the tissue or organ in the using process of the medical probe; furthermore, by arranging a plug or a socket on the lead, a user can conveniently access the probe into external equipment.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (6)

1. a medical probe, characterized by: comprises a metal needle body, a handle fixedly connected with one end of the metal needle body and a lead connected with the metal needle body; the tail end of the other end of the metal needle body is provided with a sphere, and the diameter of the sphere is 0.3mm-0.8 mm.

2. A medical probe according to claim 1, wherein: and a plug or a socket is arranged at the other end of the lead.

3. A medical probe according to claim 1, wherein: an insulating layer is arranged on the outer surface of the handle.

4. A medical probe according to claim 3, wherein: and the insulating layer is provided with anti-skid grains.

5. A medical probe according to claim 3, wherein: the insulating layer is a PEC plastic.

6. A medical probe according to claim 1, wherein: the metal needle body is a filiform needle.