KR101764720B1 - Endoscope medical instrument - Google Patents

Endoscope medical instrument Download PDF

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Publication number
KR101764720B1
KR101764720B1 KR1020160002999A KR20160002999A KR101764720B1 KR 101764720 B1 KR101764720 B1 KR 101764720B1 KR 1020160002999 A KR1020160002999 A KR 1020160002999A KR 20160002999 A KR20160002999 A KR 20160002999A KR 101764720 B1 KR101764720 B1 KR 101764720B1
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Prior art keywords
gear
case
handle
unit
engaging
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KR1020160002999A
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Korean (ko)
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KR20170084379A (en
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노성철
임종현
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연세대학교 원주산학협력단
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Priority to KR1020160002999A priority Critical patent/KR101764720B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)

Abstract

The present invention relates to a case unit having a first case and a second case which are coupled to each other; A first handle disposed at a rear end of the first case in the lengthwise direction of the first case and a second handle disposed in a direction opposite to the first handle such that the operator grips the first handle with the palm, A handle unit having a second handle that is moved in the direction of the first handle; A wheel unit disposed inside the case unit and wound with a wire inserted into a human body; A gear unit for driving the wheel unit in accordance with the upward / downward movement of the second handle; And an end effector operable in the human body according to the movement of the wire.

Figure R1020160002999

Description

[0001] ENDOSCOPE MEDICAL INSTRUMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an endoscope treatment apparatus, and more particularly, to an endoscope treatment apparatus which is easy to use and has a simple structure so that an operator can easily remove a polyp.

In general, an endoscope is a device for directly viewing the inside of a body such as an inner surface of a hollow growth period in which the inside thereof is hollow, such as a stomach or an esophagus, or a thoracic cavity or abdominal cavity, and the endoscope can be used as a bronchoscope, A variety of different types such as stomach / intestinal endoscopy, cervix, urethra, arthroscope, cystoscope, and laparoscope are subdivided and it is possible to observe the internal state of the human body and to easily perform resection of tissue and collection of secretions It is a medical device that helps to find and diagnose diseases and treat them.

When a polyp is found during colonoscopy using the above-described endoscope, a procedure is performed in which a plurality of endoscopes are inserted into the inside of a human body together with an endoscope to observe the lesion with the endoscope and remove the polyp.

That is, the conventional method of removing polyps is to insert a snare as a polyp removal tool into the inside of a human body through an endoscope to bring the snare wire close to the polyp, A surgical procedure is being performed in which the snare is separated from the endoscope and another surgical instrument is inserted through the endoscope to take out the resected polyp from the body and collect it.

However, the grip portion of the endoscopic surgery apparatus has a structure in which the thumb and forefinger are fitted, which is not only inconvenient when the operator performs an operation to reduce the distance between the thumb and the index finger, .

Korean Patent Registration No. 10-1374687 (Title of the Invention: Wire Structure of Medical Snare, Date of Notification: 2014.03.10)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an endoscope treatment apparatus which is easy to use and simple in construction, and allows a practitioner to easily remove a polyp.

According to an aspect of the present invention, there is provided a portable terminal comprising: a case unit having a first case and a second case coupled to each other; A first handle disposed at a rear end of the first case in the lengthwise direction of the first case and a second handle disposed in a direction opposite to the first handle such that the operator grips the first handle with the palm, A handle unit having a second handle that is moved in the direction of the first handle; A wheel unit disposed inside the case unit and wound with a wire inserted into a human body; A gear unit for driving the wheel unit in accordance with the upward / downward movement of the second handle; And an end effector operable in the human body according to the movement of the wire.

Wherein the gear unit includes a first gear portion connected to the second handle portion and a second gear portion gear-engaged with the first gear portion and having a smaller turning radius than the first gear portion, It is preferable that the turning radius of the second gear portion is smaller than the turning radius of the wheel unit.

The second grip portion may include a second grip rod portion gripped by the operator's hand and a gear engagement portion disposed at one end of the second grip rod portion and engaged with the first gear portion.

A first gear disposed on one side of the gear engagement portion; a second gear disposed on an opposite side of the first gear relative to the gear engagement portion; A first rotation shaft supported on an inner surface of the first case as a center of rotation of the first gear and a second rotation shaft protruding from an outer surface of the second gear to be a rotation center of the second gear, And a second rotation axis which is a second rotation axis.

Wherein the first gear is formed in a first engaging groove into which a part of the gear engaging part and a part of the second grasping rod are inserted and the other part of the gear engaging part and another part of the second grip rod part The second engaging groove may be formed.

The second gear portion includes a third gear that rotates in engagement with the first gear, a fourth gear that rotates in engagement with the second gear, a third gear that protrudes from the outer surface of the third gear, And a fourth rotation shaft protruding from an outer surface of the fourth gear and supported by an inner surface of the second case as a rotation center of the fourth gear, the third rotation shaft being supported by the inner surface of the first case .

Wherein the wheel unit includes a wheel body disposed between the third gear and the fourth gear and coupled with the third gear and the fourth gear, Can be formed.

Wherein the handle unit further comprises an elastic member disposed between the first handle and the second handle to provide an elastic restoring force against the upward and downward movement of the second handle, And a second elastic member mounting portion for mounting the elastic member may be provided on the second handle portion.

The endoscope treatment instrument further includes a wire entry / exit block provided in a front region of the first case to draw or draw the wire, and a wire entry port through which the wire can move may be formed in the wire entry / exit block.

Wherein the first case has a first case engaging portion for engaging with the second case, and the second case has a first case engaging portion formed in a front portion of the second case for inserting a part of the wire entry / exit block, The case may be provided with a second case engaging portion which is engaged with the first case engaging portion.

A first bar through-groove corresponding to the second grip bar of the second handle is formed in a rear region of the first case, and a second bar through-groove corresponding to the first bar through-hole is formed in a rear region of the second case, And the second gripper bar portion of the second handle portion can penetrate through the through-hole formed by the first bar through-groove and the second bar through-groove corresponding to each other.

The first case may have a first rotation axis insertion groove into which the first rotation axis is inserted and a first support block with a third rotation axis insertion groove into which the third rotation axis is inserted.

The effect of the endoscopic treatment instrument according to the present invention is as follows.

First, the practitioner uses the palm of the hand to grasp the first handle and the second handle of the handle unit at the same time, thereby allowing the practitioner to easily draw or draw the wire without any difficulty.

Second, the turning radius of the second gear portion is made smaller than the turning radius of the first gear portion to increase the rotation angle of the second gear portion, and the turning radius of the wheel unit that rotates simultaneously with the second gear portion, There is an advantage that the operator can make the length of the wire drawn or drawn in one stroke with respect to the handle unit as long as possible.

Thirdly, if the first case and the second case are engaged with each other in a state where the component parts provided inside the case unit are arranged in a correct position, the endoscope treatment apparatus can be assembled without a separate coupling process such as screwing, Is simple and easy to assemble.

FIG. 1 is a perspective view illustrating a main part of an endoscope treatment instrument according to an embodiment of the present invention.
2 is a perspective view showing a first case provided in the endoscopic procedure instrument of FIG.
FIG. 3 is a perspective view showing a second case provided in the endoscope treatment device of FIG. 1;
4 is a perspective view showing a state in which the second case is removed from the endoscopic procedure instrument of FIG.
5 is an exploded view of the first gear unit and the second handle provided in the endoscopic procedure instrument of FIG.
FIG. 6 is a view showing a state of use of the end effector provided in the endoscope treatment apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention in which the above-mentioned problems to be solved can be specifically realized will be described with reference to the accompanying drawings. In describing the embodiments, the same names and the same symbols are used for the same configurations, and additional description therefor will be omitted below.

1 to 6, an embodiment of an endoscope treatment instrument according to the present invention will be described.

The endoscope treatment instrument according to the present embodiment is used to remove a polyp while observing the affected part with the endoscope while the practitioner is inserted into a human body together with the endoscope.

The endoscope treatment device includes a case unit 100 having a first case 110 and a second case 120 coupled to each other and a handle unit 100 having a first handle 210 and a second handle 220 A wheel unit 300, a gear unit 400 having a first gear unit 410 and a second gear unit 420, and an end effector 500.

The case unit 100 has a shape that decreases in width from the rear side connected to the handle unit 200 toward the front side.

Specifically, the first case 110 includes a first case body 111, a wire entrance block 113 provided in a front region of the first case body 111, A first support block 115 formed on a side surface thereof, and a first case coupling portion 117 for coupling with the second case 120.

A first rod through-hole 111a through which the second grip rod 221 of the second handle is inserted is formed in a rear region of the first case main body 111. The first rod through- Through groove 121a formed in the second case body 121 of the second case.

The wire entrance block 113 is formed with a wire entrance 113a through which the wire 1 wound on the wheel unit 300 is drawn or drawn.

A tube 10, which surrounds and accommodates the wire 1, is connected to a front end of the wire entrance block 113. The tube 10 may be detachably coupled to the front end of the wire entrance block 113.

The first support block 115 is provided on the inner side of the first case body 111 and the first support shaft 115 is provided with a first rotation shaft 415 of the first gear portion 410, A first rotary shaft insertion groove 115a and a third rotary shaft insertion groove 115b into which a third rotary shaft (not shown) of the second gear unit is inserted are formed.

The first case coupling part 117 is provided at the upper and lower ends of the first case body 111 and is fitted to the second case coupling part 127.

The first case coupling part 117 includes a first case coupling block 117a formed integrally with the first case body 111 and a second case coupling block 117b integrally formed with the second case 120 on the first case coupling block 117a. And a first case engaging projection 117b protruding in the direction of the first case.

The second case 120 includes a second case body 121, a second support block 125 formed on an inner surface of the second case body 121, And a second case engaging portion (127) to be engaged.

A second bar through-groove 121a corresponding to the first bar through-hole 111a is formed in a rear area of the second case 120, that is, in a rear area of the second case main body 121. [ A block insertion groove 123 into which a part of the wire entry / exit block 113 is inserted is formed in a front region of the second case 120, that is, a front region of the second case body 121.

The second support block 125 is provided on the inner surface of the second case body 121 and the second support block 125 is provided with a second rotation shaft 417 of the first gear portion and a second rotation shaft A second rotary shaft insertion groove 125a and a fourth rotary shaft insertion groove 125b into which the fourth rotary shaft 427 is inserted are formed.

The second case engaging portion 127 is provided at an upper end and a lower end of the second case body 121 and is fitted to the first case engaging portion 117. The second case engaging portion 127 includes a second case engaging block 127a formed integrally with the second case body 121 and a second case engaging portion 127a formed on the second case engaging block 127a, Groove 127b.

The first case 110 and the second case 120 are engaged while the first case coupling protrusion 117b is engaged with the second case coupling groove 127b.

The handle unit 200 includes the first handle 210, the second handle 220 and an elastic member 220 disposed between the first handle 210 and the second handle 220, (230).

The first handle 210 is provided in the longitudinal direction of the first case 110 in a rear region of the first case 110 and the second handle 220 is disposed in the rear of the first handle 110 In the vertical direction. Accordingly, as the practitioner uses the palm of the hand to hold the first handle 210 and the second handle 220 together, the second handle 220 moves in the direction of the first handle 210 .

Specifically, the first handle 210 includes a first grip rod portion 211 disposed in a rear region of the first case 110, a second grip rod portion 211 disposed in a rear region of the first case 110, A hole 215 and a first elastic member mounting portion 213 for mounting the elastic member 230.

The first grip rod portion 211 may be integrally extended from one end of the rear region of the first case body 111 but may be detachably coupled to the rear region of the first case body 111 .

The first elastic member mounting portion 213 is formed on a surface of the first grip rod portion 211 opposite to the second grip portion 220, Respectively.

The first elastic member mounting portion 213 may be integrally formed with the first grip rod portion 211, but may be detachably coupled to the first grip rod portion 211.

The second grip portion 220 includes a second grip rod portion 221 to be gripped by the operator's hand and a second grip rod portion 221 disposed at one end of the second grip rod portion 221 and coupled with the first gear portion 410 And a second elastic member attaching portion 225 for attaching the elastic member 230. The second elastic member attaching portion 225 is provided with a gear engaging portion 223,

Similarly, the second elastic member mounting portion 225 may be integrally formed with the second grip rod portion 221, but may be detachably coupled to the second grip rod portion 221.

The second grip rod portion 221 extends rearward of the gear engaging portion 223 and is inserted through the through hole formed by the first rod through groove 111a and the second rod through groove 121a, And extends outwardly of the case unit 100.

Here, the sectional shape of the second grip rod portion 221 may correspond to the shape of the first rod through-hole 111a and the second rod through-hole 121a.

The elastic member 230 is disposed between the first grip rod portion 211 and the second grip rod portion 221, that is, between the first elastic member mounting portion 213 and the second elastic member mounting portion 225, So as to provide an elastic restoring force against the upward / downward movement of the second handle 220.

As a result, the practitioner can simultaneously grasp the first handle 210 and the second handle 220 of the handle unit by using the palm of the hand so that the practitioner can easily draw or draw the wire 1 without being laborious.

Meanwhile, the gear unit 400 drives the wheel unit 300 in accordance with the upward / downward movement of the second handle 220. The first gear portion 410 is connected to the second handle portion 220 so that the up and down movement of the second handle portion 220 causes the first gear portion 410 to rotate, The second gear portion 420 is engaged with the wheel unit 300 and rotated at the same time.

The first gear portion 410 includes a first gear 411 disposed on one side of the gear engaging portion 223 and a second gear 411 disposed on the opposite side of the first gear 411 with respect to the gear engaging portion 223 A second gear 413 protruding from the outer surface of the first gear 411 and being supported by the inner surface of the first case 110 as a center of rotation of the first gear 411, And a second rotation shaft 417 protruding from the outer surface of the second gear 413 and being supported by the inner surface of the second case 120 as a center of rotation of the second gear 413, .

The first gear 411 is formed in a first engaging groove 411a into which a part of the gear engaging part 223 and a part of the second grasping rod part 221 are inserted, The second engaging groove 413a into which the other part of the gear engaging part 223 and the other part of the second grasping rod part 221 are inserted is formed.

Of course, the present invention is not limited to this, and a plurality of coupling grooves may be formed in the gear coupling portion 223, and may be inserted into the coupling grooves on the inner surfaces of the first gear 411 and the second gear 413 But may also be embodied in a form having a plurality of coupling protrusions.

4 and 5, when the practitioner grasps the first grip rod portion 211 and the second grip rod portion 221, the second grip rod portion 221 The first gripping rod portion 221 is rotated with respect to the gear engaging portion 223 while one end of the second gripping rod portion 221 is moved upward, The first gear 411 and the second gear 413 rotate.

At this time, the first rotation axis 415 rotates while being inserted into the inner surface of the first case 110, that is, the first rotation axis insertion groove 115a on the first support block 115, The second rotating shaft 417 is rotated while being inserted into the inner surface of the second case 120, that is, the second rotating shaft insertion groove 125a on the second supporting block 125. [

The first case 110 and the second case 120 may be provided with a first bearing (not shown) for rotatably supporting the first rotating shaft 415 and the second rotating shaft 417, And a second bearing may be respectively installed.

The second gear portion 420 is gear-engaged with the first gear portion 410 and has a smaller turning radius than the first gear portion 410. The wheel unit 300 includes the second gear portion 420, The turning radius is larger.

The reason why the rotation radius of the second gear portion 420 is smaller than the rotation radius of the first gear portion 410 is that even if the rotation angle of the first gear portion 410 is small, The rotational angle of the wheel unit 300 is increased as the rotational angle of the second gear portion 420 is increased so that the drawing or pulling length of the wire becomes longer do.

As a result, the turning radius of the second gear portion 420 is smaller than the turning radius of the first gear portion 410 and larger than the turning radius of the second gear portion 420 of the wheel unit, The length of the wire drawn or drawn due to a single stroke of gripping the first handle 210 and the second handle 220 can be increased.

The second gear portion 420 includes a third gear (not shown) that rotates in engagement with the first gear 411, a fourth gear 423 that rotates in engagement with the second gear 413, A third rotation shaft (not shown) protruding from the outer surface of the third gear (not shown) and supported by the inner surface of the first case 110 while being the center of rotation of the third gear (not shown) And a fourth rotation shaft 427 protruding from the outer surface of the gear 423 and supported by the inner surface of the second case 120 as a center of rotation of the fourth gear 423.

At this time, the third rotation axis rotates while being inserted into the inner surface of the first case 110, that is, the third rotation axis insertion groove 115b on the first support block 115, and the fourth rotation axis 427 are inserted into the inner surface of the second case 120, that is, the fourth rotation axis insertion groove 125b on the second support block 125. [

As a result, in a state where the second handle 220, the elastic member 230, the first gear portion 410, the second gear portion 420, and the wheel unit 300 are positioned When the first case 110 and the second case 120 are fitted to each other, the endoscope treatment apparatus can be assembled without a separate coupling process such as screwing.

On the other hand, the wheel unit 300 is disposed inside the case unit 100, and the wire 1 inserted into the human body is wound.

Specifically, the wheel unit 300 includes a wheel body disposed between the third gear and the fourth gear 423 and coupled with the third and fourth gears 423, A wire receiving groove (not shown) in which the wire 1 is accommodated is formed on the periphery of the circumferential surface.

The present invention is not limited to this, and the wire 1 may be connected to an external power source. For example, a connection terminal for connecting one end of the wire 1 to an external power source passes through the center of the wheel unit 300 and passes through the fourth gear 423, And penetrate through the second case 120 and protrude to the outside to be connected to the external power source.

The end effector 500 operates in the human body according to the movement of the wire 1 to remove polyps. The end effector 500 includes a snare loop 510 for cutting a polyp.

Specifically, the end effector 500 is inserted into a person's body to remove the polyps during the operation of the endoscope. The practitioner adjusts the polyp into the inside of the snare loop 510 with the end effector 500 inserted into the body of the person. That is, as shown in FIG. 6 (a), the polygon is adjusted to be disposed inside the snare ring 510 in a state where the snare ring 510 protrudes to the outside of the tube 10.

4, when the first grip 210 and the second grip 220 are simultaneously gripped by the operator, the second grip 220 moves to the first grip 210, The first gear portion 410 is rotated in the counterclockwise direction and the second gear portion 420 is rotated in the clockwise direction while being engaged with the first gear portion 410 .

At this time, the wheel unit 300 rotates clockwise simultaneously with the second gear unit 420 to wind the wire 1, and when the wire 1 is wound, Similarly, the snare ring 510 is inserted into the tube 10.

During the insertion of the snare ring 510 into the tube 10, the polyp is cut and removed from a human organ tissue.

The force exerted by the end effector 500 may be applied to the force exerted by the force exerted by the force exerted by the force exerted by the force exerted by the end effector 500 Thereby controlling the operation of the pliers.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention as claimed in the claims. And such variations are within the scope of the present invention.

1: wire 10: tube
100: case unit 110: first case
111: first case body 113: wire entry / exit block
115: first supporting block 117: first case coupling part
120: second case 121: second case body
123: block insertion groove 125: second support block
127: second case coupling portion 200: handle unit
210: first handle 220: second handle
221: second grip rod portion 223: gear engaging portion
230: elastic member 300: wheel unit
400: gear unit 410: first gear portion
411: first gear 413: second gear
415: first rotating shaft 417: second rotating shaft
420: second gear portion 423: fourth gear
427: fourth rotary shaft 500: end effector
510: Snare ring

Claims (12)

A case unit having a first case and a second case which are coupled to each other;
A first handle disposed in a rear region of the first case in a longitudinal direction of the first case and a second handle disposed in a rear region of the first case so as to be opposed to the first handle and being held together with the first handle using a palm A handle unit having a second handle that is moved in the direction of the first handle;
A wheel unit disposed inside the case unit and wound with a wire inserted into a human body;
A gear unit for driving the wheel unit in accordance with the upward / downward movement of the second handle; And,
And an end effector which is operated in the human body according to the movement of the wire. The method according to claim 1,
Wherein the gear unit includes a first gear portion connected to the second handle portion and a second gear portion gear-engaged with the first gear portion, the second gear portion having a smaller turning radius than the first gear portion,
Wherein the second gear portion rotates together with the wheel unit, and the turning radius of the second gear portion is smaller than the turning radius of the wheel unit. 3. The method of claim 2,
Wherein the second grip portion includes a second grip rod portion gripped by the operator's hand and a gear engagement portion disposed at one end of the second grip rod portion and engaged with the first gear portion. The method of claim 3,
A first gear disposed on one side of the gear engagement portion; a second gear disposed on an opposite side of the first gear relative to the gear engagement portion; A first rotation shaft supported on an inner surface of the first case as a center of rotation of the first gear and a second rotation shaft protruding from an outer surface of the second gear to be a rotation center of the second gear, And a second rotation axis which is a second rotation axis of the endoscope. 5. The method of claim 4,
Wherein the first gear is formed in a first engaging groove into which a part of the gear engaging part and a part of the second grasping rod are inserted and the other part of the gear engaging part and another part of the second grip rod part And a second engaging groove into which the second engaging portion is inserted. 5. The method of claim 4,
The second gear portion includes a third gear that rotates in engagement with the first gear, a fourth gear that rotates in engagement with the second gear, a third gear that protrudes from the outer surface of the third gear, And a fourth rotation shaft protruding from an outer surface of the fourth gear and being supported by the inner surface of the second case as a rotation center of the fourth gear, the third rotation shaft being supported by the inner surface of the first case And an endoscope treatment instrument. The method according to claim 6,
Wherein the wheel unit includes a wheel body disposed between the third gear and the fourth gear and coupled with the third gear and the fourth gear, Is formed in the distal end portion of the endoscope. The method according to claim 1,
Wherein the handle unit further comprises an elastic member disposed between the first handle and the second handle to provide an elastic restoring force against the upward and downward movement of the second handle, And a second elastic member mounting portion for mounting the elastic member is provided on the second handle portion. The method according to claim 1,
Further comprising a wire entry / exit block provided in a front region of the first case and through which the wire is drawn or drawn, and a wire entry port through which the wire can move is formed in the wire entry / exit block. . 10. The method of claim 9,
A block insertion groove into which a part of the wire entry / exit block is inserted is formed in a front region of the second case,
Wherein the first case is provided with a first case engaging portion for engaging with the second case and the second case is provided with a second case engaging portion engaging with the first case engaging portion. Instrument. The method of claim 3,
A second bar through-groove corresponding to the first bar through-hole is formed in a rear region of the second case, and a second bar through-groove corresponding to the first bar through-hole is formed in a rear region of the second case And the second rod-receiving portion penetrates through the through-hole formed by the first rod-through groove and the second rod-through groove corresponding to each other. The method according to claim 6,
Wherein the first case includes a first supporting block having a first rotation axis insertion groove into which the first rotation axis is inserted and a third rotation axis insertion groove into which the third rotation axis is inserted, .
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Publication number Priority date Publication date Assignee Title
JP2005237660A (en) 2004-02-26 2005-09-08 Olympus Corp Endoscope
JP2005318926A (en) 2004-05-06 2005-11-17 Olympus Corp Treatment appliance for endoscope
JP2006255257A (en) 2005-03-18 2006-09-28 Olympus Medical Systems Corp Endoscopic treatment tool

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