CN219982874U - Adjustable microscopic distance meter for endoscopic surgery - Google Patents
Adjustable microscopic distance meter for endoscopic surgery Download PDFInfo
- Publication number
- CN219982874U CN219982874U CN202320948526.7U CN202320948526U CN219982874U CN 219982874 U CN219982874 U CN 219982874U CN 202320948526 U CN202320948526 U CN 202320948526U CN 219982874 U CN219982874 U CN 219982874U
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- Prior art keywords
- push rod
- measuring
- guide
- guide wire
- endoscopic surgery
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- 238000002674 endoscopic surgery Methods 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 230000002596 correlated effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000386 microscopy Methods 0.000 claims 4
- 230000002950 deficient Effects 0.000 abstract description 9
- 210000000078 claw Anatomy 0.000 description 10
- 230000007547 defect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000003902 lesion Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 210000000959 ear middle Anatomy 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 206010033103 otosclerosis Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Abstract
The utility model discloses an adjustable micro-distance meter for endoscopic surgery, which comprises a rod-shaped body, a guide part and a handheld part, wherein an included angle of not less than 120 degrees is formed between the guide part and the handheld part; a guide channel is formed in the guide part along the axis of the guide part; a measurement guidewire disposed within the guide channel; displacement occurs along the guide channel; and a push rod slidably coupled to a sidewall of the hand-held portion; the tail end of the measuring guide wire is fixed on the push rod; the measuring guide wire is driven by the push rod to displace along the guide channel; scales are further arranged on the peripheral wall of the handheld part along the pushing direction of the push rod; wherein, the scale and the displacement distance of the measuring guide wire are positively correlated. The utility model has simple structure and operation, can realize single-hand operation of operators, does not influence the operation vision, and accurately measures the length of defective tissues.
Description
Technical Field
The utility model relates to a medical instrument used in otorhinolaryngological operations. More particularly, the present utility model relates to an adjustable micro-rangefinder for endoscopic surgery.
Background
Otoscopes are endoscopic instruments that perform an examination or surgical assessment of the external auditory meatus, tympanic membrane, middle ear, etc. The ear endoscope can observe the parts which are not easy to observe by the operation microscope, such as the upper thigh chamber, the rear thigh chamber and the like, so as to discover middle ear lesions in time and reduce the recurrence rate of the lesions. The advantages of endoscopic otosurgery are small trauma, clear field of view, quick post-operative recovery, no in-ear incision required for some patients, and removal of the upper shield behind the external auditory canal to treat peristapedial lesions, especially in patients with otosclerosis. However, in the process of endoscopic otosurgery, the operator can only operate with one hand, and stereoscopic vision is lacking; some surgical sites are deep, the lumen is narrow, the anatomy is fine, the structure is complex, the operation is not easy, and the like, and the application of the otoscope in the operation is limited. In particular, in the endoscopic reconstruction surgery, the lesion part is removed first, then the defective tissue is repaired, and the size of the defective area is measured before the tissue defect is repaired. However, there are only depth gauges clinically, and there are no suitable length gauges. The prior patent (CN 210931428U) provides an otorhinolaryngological measurer, which comprises a handle, wherein one end of the handle is connected with an outer tube, and the end part of the outer tube is provided with a stop block. However, it was found that it had the following problems during actual use: firstly, the diameter of the handle is overlarge, the handle is straight, and the operation vision is affected when the handle is used; second, the baffle plate plays a role in guiding the direction of the measuring guide wire, but the measuring guide wire easily deviates from the direction, and the measuring result is affected.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
It is still another object of the present utility model to provide an adjustable micro-distance meter for endoscopic surgery that can be operated by one hand of an operator, and accurately measure the length of defective tissue without affecting the surgical field.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided an adjustable micro distance meter for endoscopic surgery, comprising:
the rod-shaped body comprises a guide part and a handheld part, wherein an included angle of not less than 120 degrees is formed between the guide part and the handheld part; a guide channel is formed in the guide part along the axis of the guide part; the guide is, for example, a hollow rod; the guide channel is defined by the interior space of the hollow rod;
a measurement guidewire disposed within the guide channel; displacement occurs along the guide channel;
and a push rod slidably connected to a peripheral wall of the hand-held portion; the tail end of the measuring guide wire is fixed on the push rod; the measuring guide wire is driven by the push rod to displace along the guide channel; scales are further arranged on the peripheral wall of the handheld part along the pushing direction of the push rod; wherein, the scale and the displacement distance of the measuring guide wire are positively correlated. The scale is arranged on one side of the push rod and extends along the advancing direction of the push rod, and the advancing distance of the measuring guide wire is positively correlated with the length of the scale.
When the device is used, an operator holds the holding part by one hand, and slowly moves the guiding part to enable the end part of the guiding part to be close to the tissue to be measured. After the operator determines the starting point of the tissue to be measured, after the end part of the guide part is abutted against the starting point, the push rod is slowly pushed, the measuring guide wire is pushed to slowly extend out of the guide part, and after the end part of the measuring guide wire is abutted against the end point of the tissue to be measured, the scale value is read. The utility model has simple operation and can finish measurement by one hand; the included angle which is not smaller than 120 degrees and is arranged on the rod-shaped body can fully expose the surgical field, and is convenient for accurately controlling the measurement operation.
Preferably, the push rod extends at least partially out of the outer peripheral surface of the side wall of the hand-held part; the end part of the push rod is also provided with a push handle. The push handle is, for example, abutted against the outer surface of the hand-held portion when the other end of the push rod extends onto the outer surface of the side wall of the hand-held portion. Therefore, the push rod can be clamped on the peripheral wall of the handheld part; the pushing handle is used for pushing the pushing rod by an operator. The structure is simple, the operation is easy, the production is easy, and the cost is low.
Preferably, the head end of the measuring guide wire is configured into two equal-length claws, the two claws are connected by an elastic piece, when the push rod pushes the measuring guide wire to extend out of the guiding part, the two claws are opened, and after the end parts of the two claws respectively abut against the tissue edge, the distance between the end parts of the two claws is the measured value. The initial position of the measuring guide wire is restrained in the guide channel, and after the measuring guide wire is slowly pushed out of the guide channel, the two claws are slowly opened; after the ends of both jaws contact the edge of the tissue to be measured, the measurement can be read. When the defect tissue is larger, especially the defect length is longer, especially the operation space is limited, the end part of the measuring guide wire is arranged into two claws, and the measuring accuracy and the convenience can be greatly improved.
Preferably, the measuring guide wire is a straight line, and the distance that the push rod pushes the measuring guide wire to extend out of the guiding part is the measured value. For most defective tissues, the length of the measuring guide wire can be measured by arranging the measuring guide wire into a straight line.
Preferably, the end of the guiding part is further provided with a guiding part, the end of the guiding part is vertically bent and extends to form the guiding part, and the guiding part is at a different side from the holding part. Thereby, the guide is used to control the direction of the measuring guidewire. The guide part and the guide part are integrally formed, so that the deviation of the measuring guide wire in the extending process can be effectively prevented.
Preferably, the push rod is slidably connected to the peripheral wall of the hand-held part by a connection assembly, the connection assembly comprising:
a mounting hole which is formed in a peripheral wall of the hand-held portion and extends in an axial direction of the guide portion;
the clamping groove is arranged on the push rod and is clamped at the edge of the mounting hole, and the push rod is slidably mounted in the mounting hole. The push rod is used for pushing the measuring guide wire to move along the guide channel, so that the push rod is connected to the tail end of the measuring guide wire; while being axially movable along the outer wall of the guide,
preferably, the edge of the mounting hole is provided with a length scale. The length scale and the displacement distance of the measuring guide wire are in a correlated positive correlation. When the measuring guide wire is a straight line, the displacement distance of the measuring guide wire is the length of the scale, namely the length of the defect tissue. When the end portion of the measuring guidewire is divided into two jaws, the end distance of the length scale from the two jaws is calculated, for example, using formula i:wherein L is the measurement distance (scale length); d is the length of the jaw; a is the displacement distance of the push rod. The scale may be set at the time of shipment.
Preferably, the surface of the pushing handle is convexly provided with a bulge. Therefore, the friction force of the pushing handle can be increased, and the operation force of medical staff is reduced.
Preferably, the rod-shaped body and the measuring guide wire are both made of stainless steel materials. Therefore, the adjustable microscopic distance meter for the endoscopic surgery can directly enter a disinfection circulation program after the operation, can be repeatedly used, and reduces medical cost.
Preferably, the diameter of the rod-shaped body is 0.5-1.5cm.
The utility model at least comprises the following beneficial effects: the adjustable microscopic distance meter for the endoscopic surgery has the advantages of simple structure, reasonable design, low processing difficulty and low cost. The included angle which is not smaller than 120 degrees and is arranged on the rod-shaped body can fully expose the surgical field, and is convenient for accurately controlling the measurement operation. The rod-shaped body is made of hollow metal tubes, is light in weight and is convenient to clean and sterilize. When the defect tissue is larger, especially the defect length is longer, especially the operation space is limited, the end part of the measuring guide wire is arranged into two claws, and the measuring accuracy and the convenience can be greatly improved. The end part of the guide part is provided with the guide part, and the guide part are integrally formed, so that the deviation of the measuring guide wire in the extending process can be effectively prevented. When the adjustable microscopic distance meter for the endoscopic surgery is used for measuring distance, the pushing handle can be operated by one hand, so that the measurement can be completed by one hand of an operator.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of an adjustable micro-distance meter for endoscopic surgery according to one embodiment of the present utility model;
fig. 2 is a schematic structural view of an adjustable micro-distance meter for endoscopic surgery according to another embodiment of the present utility model.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present utility model provides an adjustable micro-distance meter for endoscopic surgery, comprising:
a rod-shaped body 100 including a guide portion 101 and a hand-held portion 102, the guide portion 101 and the hand-held portion 102 having an included angle therebetween of not less than 120 degrees; a guide channel 103 is formed in the guide part 101 along the axis thereof; the guide 101 is, for example, a hollow rod; the guide channel 103 is defined by the interior space of the hollow rod; the guide portion 101 and the holding portion 102 are formed by bending the rod-shaped body 100 at an angle; wherein the length of the holding portion 102 is, for example, not greater than half the length of the guiding portion 101, which is convenient for the medical staff to hold, and at the same time, does not affect the operation field of view when the operator holds the medical staff with one hand.
A measuring guidewire 200 disposed within the guide channel 103; displacement occurs along the guide channel 103; the measuring guide wire 200 is, for example, a metal wire, and preferably a medical alloy material is used. Greatly improves the safety of the equipment.
And a push rod 300 slidably coupled to a peripheral wall of the hand-held portion 102; the tail end of the measuring guide wire 200 is fixed on the push rod 300; the measuring guide wire 200 is driven by the push rod 300 to displace along the guide channel 103; the peripheral wall of the hand-holding part 102 is also provided with scales 104 along the pushing direction of the push rod 300; wherein the scale 301 is positively correlated to the displacement distance of the measuring guidewire 200. The displacement distance of the measuring guide wire 200 when moving from the initial position to the final position is the measuring length.
When in use, the operator holds the holding part with one hand, so that the end part of the guiding part is close to the initial edge of the defect tissue to be detected. After the end of the guiding portion 101 abuts against the initial edge, the pushing rod 300 is slowly pushed, the measuring guide wire 200 is pushed to slowly extend out of the guiding portion 101, and after the end of the measuring guide wire 200 abuts against the end point of the tissue to be measured, the scale value is read. The utility model has simple operation and can finish measurement by one hand; the included angle of not less than 120 degrees is set on the rod-shaped body 100, so that the surgical field can be fully exposed, and the measurement operation can be accurately controlled.
In one embodiment, as shown in fig. 2, the pushing rod 300 extends at least partially out of the outer circumference of the sidewall of the hand-held portion 102; the end of the push rod 300 is also provided with a push handle 301. The push handle 301 is, for example, abutted against the outer surface of the hand-held portion 102. Thus, the push rod 300 can be clamped on the peripheral wall of the hand-held part 101; the push handle 301 is used for pushing the push rod 300 by the operator. The structure is simple, the operation is easy, the production is easy, and the cost is low.
In one embodiment, as shown in fig. 2, the head end of the measuring guide wire 200 is configured as two equal-length jaws 201, the two jaws 201 are connected by an elastic member, when the push rod 300 pushes the measuring guide wire 200 to extend out of the guiding portion 101, the two jaws 201 open, and when the ends of the two jaws 201 abut against the tissue edge, the distance between the ends of the two jaws 201 is the measured value. The initial position of the measuring guide wire 200 is restrained in the guide channel 103, and after the measuring guide wire 200 is slowly pushed out of the guide channel 103, the two claws 201 are slowly opened; after the ends of both jaws 201 contact the edge of the tissue to be measured, the measurement can be read. Particularly when the defective tissue is large, particularly when the defective length is long, the operation space is limited, and the end of the measuring guide wire 200 is provided with two claws, the measuring accuracy and convenience can be greatly improved.
In one embodiment, as shown in fig. 1, the end of the measuring guidewire 200 is straight, i.e., the end of the measuring guidewire 200 does not diverge; the distance that the push rod 300 pushes the measuring guide wire 200 to extend out of the guiding portion 101 is the measured value. For most defective tissue, the length of the measurement guidewire 200 can be measured by placing it in line.
In one embodiment, as shown in fig. 1, the end of the guiding portion 101 further has a guiding portion 105, and the end of the guiding portion 101 is vertically bent and extended to form the guiding portion 105, and the guiding portion 105 is on a different side from the hand-held portion 102. Thereby, the guide 105 is used to control the direction of the measuring guidewire 200. The guide portion 105 and the guide portion 101 are integrally formed, so that the measurement guide wire 200 can be effectively prevented from being deviated during the extending process. The diameter of the measuring guidewire 200 is typically thin due to the limited surgical space; in an irregular surgical operation space, the device is easy to block or shift after touching. This may result in failure to make subsequent measurements or accurate measurement results. The guide 105 serves to guide the measuring guide wire 200 to be displaced in a predetermined direction without being deviated during the measuring process.
In one embodiment, as shown in fig. 2, the push rod 300 is slidably coupled to the peripheral wall of the hand-held portion 102 by a coupling assembly comprising:
a mounting hole (not shown) which is opened on a peripheral wall of the hand-held portion 102 and extends in an axial direction of the hand-held portion 102;
and a clamping groove 302, which is disposed on the push rod 300, is clamped at the edge of the mounting hole (not shown in the figure), and slidably mounts the push rod 300 in the mounting hole (not shown in the figure) and reciprocates along the mounting hole (not shown in the figure).
In one embodiment, as shown in fig. 1, the edges of the mounting holes are provided with graduations 104. The scale 104 has a positive correlation with the displacement distance of the measuring guide wire 200. The scale 104 is for example a length value; therefore, when the measuring guide wire 200 is a straight line, the displacement distance of the measuring guide wire 200 is the length indicated by the scale, that is, the length of the defective tissue. When the end portion of the measuring guidewire 200 is divided into two jaws, the end distance of the scale from the two jaws is calculated, for example, using formula i:wherein L is the measurement distance (scale length); d is the length of the jaw; a is the displacement distance of the push rod. The scale may be set at the time of shipment.
In one embodiment, as shown in fig. 1, the surface of the push handle 301 is provided with a protrusion 303. Thereby increasing the friction force of the push handle 301 and reducing the force required by the medical staff for operation.
In one embodiment, as shown in fig. 1, the rod-shaped body 100 and the measuring guide wire 200 are made of stainless steel materials. Therefore, the adjustable microscopic distance meter for the endoscopic surgery can directly enter a disinfection circulation program after the operation, can be repeatedly used, and reduces medical cost.
In one embodiment, as shown in FIG. 1, the rod-shaped body 100 has a diameter of 0.5-1.5cm. The method is convenient for fully exposing the operation field of vision and improving the operation safety and the measurement accuracy.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. Adjustable micro-distance meter for endoscopic surgery, characterized by comprising:
the rod-shaped body comprises a guide part and a handheld part, wherein an included angle of not less than 120 degrees is formed between the guide part and the handheld part; a guide channel is formed in the guide part along the axis of the guide part;
a measurement guidewire disposed within the guide channel; displacement occurs along the guide channel;
and a push rod slidably coupled to a sidewall of the hand-held portion; the tail end of the measuring guide wire is fixed on the push rod; the measuring guide wire is driven by the push rod to displace along the guide channel; scales are further arranged on the peripheral wall of the handheld part along the pushing direction of the push rod; wherein, the scale and the displacement distance of the measuring guide wire are positively correlated.
2. The adjustable microscopy rangefinder of claim 1 wherein the pushrod extends at least partially over the outer perimeter of the handpiece sidewall; the end part of the push rod is also provided with a push handle.
3. The adjustable micro-distance measuring device for endoscopic surgery according to claim 2, wherein the head end of the measuring guide wire is configured as two equal-length jaws connected by an elastic member, the two jaws being opened when the push rod pushes the measuring guide wire out of the guide portion, and the distance between the ends of the two jaws being a measured value when the ends thereof abut against tissue.
4. The adjustable micro-distance meter for endoscopic surgery according to claim 2, wherein the measuring guide wire is a straight line, and the distance that the push rod pushes the measuring guide wire to extend out of the guiding portion is a measured value.
5. The adjustable micro-distance measuring device for endoscopic surgery according to claim 4, wherein an end portion of the guiding portion is vertically bent and extended to form a guiding portion, and the guiding portion is on a different side from the holding portion.
6. The adjustable microscopy rangefinder for endoscopic surgery of claim 2, wherein the pushrod is slidably connected to the peripheral wall of the handpiece via a connection assembly comprising:
the mounting hole is formed in the peripheral wall of the handheld part and extends along the axial direction of the handheld part;
the clamping groove is arranged on the push rod and is clamped at the edge of the mounting hole, and the push rod is slidably mounted in the mounting hole.
7. The adjustable micro-distance meter for endoscopic surgery according to claim 6, wherein the edge of the mounting hole is provided with a length scale.
8. The adjustable micro-distance measuring device for endoscopic surgery according to claim 2, wherein the surface of the push handle is convexly provided with a protrusion.
9. The adjustable microscopy rangefinder for endoscopic surgery according to claim 1, wherein the rod-shaped body and the measuring guidewire are both made of stainless steel material.
10. The adjustable microscopy rangefinder for endoscopic surgery according to claim 1, wherein the diameter of the rod-shaped body is 0.5-1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948526.7U CN219982874U (en) | 2023-04-24 | 2023-04-24 | Adjustable microscopic distance meter for endoscopic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948526.7U CN219982874U (en) | 2023-04-24 | 2023-04-24 | Adjustable microscopic distance meter for endoscopic surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219982874U true CN219982874U (en) | 2023-11-10 |
Family
ID=88613594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320948526.7U Active CN219982874U (en) | 2023-04-24 | 2023-04-24 | Adjustable microscopic distance meter for endoscopic surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219982874U (en) |
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2023
- 2023-04-24 CN CN202320948526.7U patent/CN219982874U/en active Active
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