JP2021090611A - Recovery device for medical care - Google Patents

Abstract

To provide a recovery device for medical care capable of quickly and easily recovering a recovery object.SOLUTION: A recovery device 1 for medical care comprises: a movement operation member 3 which is passed to the inside of a sheath part 2, and is moved in a cross direction; a capture part 4 provided on a front end of the movement operation member; and first and second traction ropes 5 and 6. The capture part 4 includes: a loop member 11 which can be deformed elastically and forms a closed loop; a flexible sheet-shaped or bag-shaped capture material 12 which is held by the loop member. When the movement operation member 3 is moved from the first position to the second position, the capture part protrudes from a tip of the sheath part 2 and extends forward. One ends of the first and second traction ropes 5 and 6 are fixed to one/the other of both sides on the front end side of the loop member 11, the other ends of the traction ropes are towed rearward through the inside of the sheath part 2.SELECTED DRAWING: Figure 1

Description

The present invention relates to a medical recovery device suitable for recovering a tissue piece excised by endoscopic surgery of a lumen or abdominal cavity and a foreign substance due to accidental ingestion.

Conventionally, as such a medical recovery device, a treatment tool provided with a tubular long-axis member and a catching portion provided at the tip of the long-axis member for collecting a recovery object such as necrotic tissue or a foreign substance. Is known (see, for example, Patent Document 1).

The catching portion of the treatment tool of Patent Document 1 includes a catching material having an opening for introducing the recovered object and an internal space for accommodating the recovered object. As the scavenging material, a material formed in a bag shape by a flexible thin film or a material having a network structure is used.

When collecting the object to be collected by this treatment tool, the tip of the long-axis member is positioned at the collection position by the endoscope, and the capturing portion is pushed out from the tip of the long-axis member. As a result, the opening of the catching portion is opened by the restoring force of the closing wire of the capturing portion.

Next, the position of the capture unit is adjusted based on the image of the endoscope so that the object to be collected is located in the opening, and the object to be collected is housed inside the capture unit. After that, for example, the object to be collected can be collected by taking out the treatment tool together with the endoscopic device.

Japanese Patent No. 5475191

However, according to the treatment tool of Patent Document 1, when the catching portion is projected from the tip of the long-axis member, the catching portion opens only in the longitudinal direction of the long-axis member. For this reason, it takes a certain amount of technique to recover the necrotic tissue and foreign matter, and it takes a considerable amount of time for the recovery work and it feels complicated.

In addition, when there are a plurality of collection objects, it takes time to collect all the collection objects, and when the collection objects are deep, the capture unit is made to reach each collection object. It will take more time to position.

An object of the present invention is to provide a medical recovery device capable of quickly and easily recovering a recovery object in view of the problems of the prior art.

The medical recovery device of the present invention
With the sheath
A movement operation member that is passed through the inside of the sheath portion and is moved back and forth between the first position and the second position in the sheath portion.
A catching portion provided at the front end of the moving operation member for catching a recovery object,
A first tow rope and a second tow rope to be pulled to deform the catching portion are provided.
The catching part is
An elastically deformable loop member having an outward path portion and a return path portion starting from the front end of the movement operation member to form a closed loop,
A sheet-like or bag-like flexible scavenger whose peripheral edge or opening edge is held by the outward path portion and the return path portion.
When the movement operation member is located at the first position, it is housed in the front end portion of the sheath portion, and when the movement operation member is located at the second position, it protrudes from the tip of the sheath portion and expands forward. The loop member is configured to form the scavenger into a flat or concave shape.
One end of the first tow rope is fixed to a portion other than the rear end portion in the outward path portion, and the other end can be towed rearward via one side of the front and back sides of the scavenger and the inside of the sheath portion. Provided in
One end of the second tow rope is fixed to a portion other than the rear end portion of the return path portion, and the other end can be towed rearward via the one side of the scavenger and the inside of the sheath portion. It is characterized in that it is provided in.

In this configuration, when the tip of the sheath portion is positioned in the vicinity of a tissue piece excised in the body or a foreign matter to be collected due to accidental ingestion, the movement operating member is moved from the first position to the second position. As a result, the catching portion protrudes from the tip of the sheath portion and expands, and the catching material is formed into a flat or concave shape by the loop member and is arranged next to the object to be recovered. After that, by towing the first and second tow ropes rearward selectively or in parallel, the catching portion can be deformed according to the position of the recovery target object, and the recovery target object can be captured by the catching portion. it can.

For example, when the catching portion is deformed, one of the first and second tow ropes is pulled backward so that the loop member is twisted clockwise or counterclockwise with respect to the front-rear direction. Let them face the object to be collected. Next, the other of the first and second tow ropes is pulled backward to bend the loop member rearward, and the first and second tow ropes are further pulled to deform the loop member so as to be folded rearward. As a result, the object to be recovered located on the twisted side of the loop member can be quickly and easily captured in the scavenger. The captured recovery object can be taken out of the body and recovered together with, for example, a medical recovery device.

In the present invention, the first tow rope and the second tow rope are preferably provided so as to intersect in front of the front end of the sheath portion when the movement operating member is located at the second position.

According to this, in front of the sheath portion, the acute angle formed by the first and second traction ropes in the front-rear direction becomes larger than when the first and second traction ropes do not intersect, so that the loop member Can be deformed by twisting more clockwise or counterclockwise with respect to the front-back direction. As a result, the object to be collected can be captured more quickly and easily by the capturing unit.

In the present invention
An operation unit for performing a movement operation of the movement operation member and a traction operation of the first and second traction ropes is provided.
The operation unit
The main body fixed to the rear end of the sheath and
The rear end portion of the movement operation member is fixed and is provided so as to be slidable in the front-rear direction with respect to the main body portion, and the movement operation member is moved back and forth between the first position and the second position. Main slide part for
The main body is provided with a slide rotating portion that is slidable in the front-rear direction and is rotatably provided around a rotation axis that intersects the front-rear direction.
The rear end portions of the first and second tow ropes may be fixed to the slide rotating portion on one side and the other side in the direction intersecting the axis toward the front, respectively.

According to this, the first or second tow rope is selectively pulled by rotating the slide rotating portion to one or the other, and the first and second tow ropes are pulled by sliding the slide rotating portion rearward. Both can be towed backwards.

In the present invention
An operation unit for performing a movement operation of the movement operation member and a traction operation of the first and second traction ropes is provided.
The operation unit
The main body fixed to the rear end of the sheath and
The rear end portion of the movement operation member is fixed and is provided so as to be slidable in the front-rear direction with respect to the main body portion, and the movement operation member is moved back and forth between the first position and the second position. Main slide part for
A first tow slide portion that is slidably provided in the front-rear direction with respect to the main body portion and to which the rear end portion of the first tow cord is fixed.
It may be provided with a second traction slide portion that is slidable in the front-rear direction with respect to the main body portion and has a rear end portion of the second traction rope fixed.

According to this, the first or second tow rope is selectively towed by the first and second tow slide portions, and the first and second tow slide portions are slid backward to pull the first and second tow ropes. Both ropes can be towed backwards.

It is a front view of the medical recovery device which concerns on 1st Embodiment of this invention. It is a front view which shows the state when the 1st tow rope of the medical recovery device of FIG. 1 is towed. It is a front view which shows the state when the 2nd tow cord of the medical recovery device of FIG. 1 is towed. It is a front view which shows the state when the 1st and 2nd tow ropes of the medical recovery device of FIG. 1 were towed greatly. It is a front view of the operation part of the medical recovery device which concerns on 2nd Embodiment of this invention. It is the VI-VI line sectional view of FIG. 1, and is the figure which shows the sectional view of the sheath part of the medical recovery device of FIG. It is a perspective view which illustrates the bag-shaped scavenging material which can be used in a medical recovery device. It is a figure which shows another example of the VI-VI line cross section of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a medical recovery device according to the first embodiment of the present invention. This medical recovery device 1 is suitable for recovering tissue pieces excised by endoscopic surgery of the lumen or abdominal cavity and foreign substances due to accidental ingestion.

As shown in FIG. 1, the medical recovery device 1 is provided at the sheath portion 2, the movement operation member 3 passed through the inside of the sheath portion 2, and the front end of the movement operation member 3 to capture the object to be collected. A catching portion 4 for the purpose and a first towing rope 5 and a second towing rope 6 to be pulled to deform the catching portion 4 are provided.

The sheath portion 2 can be composed of a medical lumen (catheter) formed of a flexible resin. Specifically, the sheath portion 2 is composed of only an outer cylinder having 1 lumen (single lumen), or has an inner cylinder 7 having 3 lumens (triple lumen) and 1 lumen as illustrated in FIG. It can be configured with an outer cylinder 8. In the present embodiment, a cylinder composed of an inner cylinder 7 having 3 lumens and an outer cylinder 8 having 1 lumen is used.

The movement operating member 3 is passed inside the operating sheath portion 2 so that it can move back and forth between the first position P1 and the second position P2 in the sheath portion 2. The movement operation member 3 can be made of, for example, a metal wire.

The scavenging unit 4 has an elastically deformable loop member 11 having an outward path portion 9 and a return path portion 10 starting from the front end of the movement operation member 3 to form a closed loop, and a peripheral portion or an opening by the outward path portion 9 and the return path portion 10. It is provided with a sheet-like or bag-like flexible scavenger 12 having an edge held. The loop member 11 can be made of a metal wire.

Further, due to its elastically deformable property, the loop member 11 is housed in the front end portion of the sheath portion 2 when the movement operating member 3 is located at the first position P1, and the moving operating member 3 is positioned at the second position P2. It is configured to protrude from the tip of the sheath portion 2 and expand forward to define a planar closed region. The closed region is not limited to the shape shown in FIG. 1, and may be an elliptical shape or a polygonal shape.

When the catching material 12 is in the form of a sheet, it is preferably made of a resin net. FIG. 1 shows an example in which the scavenger 12 is composed of this net. When the scavenger 12 is in the shape of a bag, a collection bag for an endoscope as shown in FIG. 7 can also be used. The scavenger 12 has an outward path portion 9 and a return path portion 10 of the loop member 11 so as to hold a peripheral portion (when composed of a net) or an opening edge portion (when a bag-shaped one). It is provided between 9 and the return path portion 10.

Further, the catching portion 4 is configured to be housed in the front end portion of the sheath portion 2 when the moving operation member 3 is located at the first position P1. That is, when the catching material 12 is made of a resin net, it is stored in a naturally folded state. When the scavenger 12 is in the shape of a bag, it is housed in a loop member 11 in a state of being spirally wound around the scavenger 12.

Further, when the movement operation member 3 is located at the second position P2, the catching portion 4 protrudes from the tip of the sheath portion 2 and expands forward, and the loop member 11 makes the catching material 12 flat (when composed of a net). ) Or a recessed shape (if it is bag-shaped). FIG. 1 shows the state at this time.

One end of the first tow rope 5 is fixed to the middle portion on the front end side of the outward path portion 9 of the loop member 11, and the other end can be towed via one side of the front and back sides of the scavenger 12 and the inside of the sheath portion. It is composed of. The second tow rope 6 is configured so that one end is fixed to an intermediate portion on the front end side of the return path portion 10 and the other end can be towed via the one side of the scavenger and the inside of the sheath portion 2. .. The first and second tow ropes 5 and 6 may be made of resin or metal.

The fixed positions of the first tow ropes 5 and 6 with respect to the outward path portion 9 and the return path portion 10 are the portions other than the rear end portions of the outward path portion 9 and the return path portion 10, respectively. It may be near the rear end or near the tip.

Further, the medical collection device 1 includes an operation unit 13 for performing a movement operation of the movement operation member 3 and a traction operation of the first and second traction lines 5 and 6.

The operation unit 13 is a main slide provided so that the main body portion 14 fixed to the rear end portion of the sheath portion 2 and the rear end portion of the movement operation member 3 are fixed and slidable in the front-rear direction with respect to the main body portion 14. With respect to the portion 15 and the main body portion 14, a slide rotating portion 17 provided so as to be slidable along an elongated hole 17a extending in the front-rear direction and rotatably around a rotation axis 17b intersecting or orthogonal to the front-rear direction. To be equipped. The main slide portion 15 is used to move the movement operation member 3 back and forth between the first position P1 and the second position P2.

In the present embodiment, the rotation axis 17b of the slide rotating portion 17 is orthogonal to the front-rear direction and orthogonal to the closed region formed by the loop member 11.

In the slide rotating portion 17, the rear end portions of the first and second tow ropes 5 and 6 are interposed on one side and the other side in the direction intersecting the rotation axis 17b toward the front via the fixing portions 17c and 17d, respectively. Is fixed. The fixing portion 17c is guided on the slide rotating portion 17 so as to be able to move from the position of FIG. 1 to the position of FIG. 2 along the circumferential direction of, for example, about 45 °. Similarly, the fixed portion 17d is guided on the slide rotating portion 17 so as to be able to move from the position of FIG. 1 to the position of FIG.

In the state of FIG. 1, the slide rotating portion 17 pushes only the fixing portion 17c when the slide rotating portion 17 is rotated counterclockwise to move to the position shown in FIG. 2, and when the slide rotating portion 17 is rotated clockwise, only the fixing portion 17d is pushed. Is provided to provide a pressing portion that moves to the position shown in FIG. Such a pressing portion can be composed of, for example, fixed portions 17c, 17d or a member that contacts only the front side of a member that supports them.

Therefore, the first and second tow ropes 5 and 6 can be selectively towed by rotating the slide rotating portion 17 to one or the other.

When the pressing portion as described above is slid rearward along the elongated hole 17a, both the fixing portions 17c and 17d are moved rearward.

Further, the slide rotating portion 17 is provided with a plurality of pins parallel to the rotation axis 17b. The first and second tow ropes 5 and 6 are zigzag-hung on a plurality of corresponding pins and fixed to the fixing portions 17c and 17d, respectively. This prevents unexpected movements when the first and second tow ropes 5 and 6 are not towed.

When the sheath portion 2 is configured by using the inner cylinder 7 having 3 lumens, as shown in FIG. 6, the first and second traction ropes 5 and 6 are passed through different lumens, respectively. Then, the movement operating member 3 is passed through the lumens located between these lumens. In this case, as shown in FIG. 1, the first and second tow ropes 5 and 6 are provided so as to intersect in front of the front end of the sheath portion 2 when the movement operating member 3 is located at the second position P2. Is preferable.

Further, in this case, it is preferable that the first and second tow ropes 5 and 6 intersect again in front of the portion fixed to the slide rotating portion 17 in the operating portion 13. According to this, when the operator rotates the slide rotating portion 17 to pull the first or second tow rope 5 or 6, the direction of rotation and the first or second tow rope 5 or 6 to be towed. This is because it is possible to prevent operation mistakes by sensuously matching.

When recovering a tissue piece excised by endoscopic surgery of the lumen or abdominal cavity or a foreign substance due to accidental ingestion by the medical recovery device 1, medical treatment attached to the channel by the endoscope. The tip of the recovery device 1 is brought close to the recovery target. Then, the operator slides the main slide portion 15 forward with the other hand while holding the main body portion 14 of the operation portion 13 with one hand, and moves the movement operation member 3 from the first position P1 to the second position. Move to P2.

As a result, the capturing unit 4 is in the state shown in FIG. That is, the loop member 11 of the scavenger portion 4 protrudes from the tip of the sheath portion 2 and expands to define a planar closed region, and the scavenger 12 expands together with the loop member 11 and is stretched in the closed region. .. Next, the operation unit 13 is operated to deform the capture unit 4 according to the position of the object to be collected with respect to the capture unit 4.

This deformation is performed by the operator holding the main body portion 14 and the main slide portion 15 with one hand and operating the slide rotating portion 17 with the other hand. At this time, if the slide rotating portion 17 is operated with the main slide portion 15 fixed to the main body portion 14 with the one hand, the slide rotating portion 17 can be operated more effectively.

For example, while holding the main body portion 14 and the main slide portion 15 of the operation portion 13 with one hand, the slide rotating portion 17 is rotated clockwise or counterclockwise toward FIG. 1 or slid backward.

When the slide rotating portion 17 is rotated counterclockwise, the first tow rope 5 is towed by the slide rotating portion 17. Further, at this time, since the second tow rope 6 has a structure that is not affected by the slide rotating portion 17 as described above, it tries to stay toward the tip side by the reaction force of the loop member 11. As a result, as shown in FIG. 2, the capturing unit 4 is twisted clockwise toward the front. In this case, when the object to be collected is located on the upper side of the capture unit 4 with respect to FIG. 2, the object to be collected can be effectively captured by the capture unit 4.

On the other hand, when the slide rotating portion 17 is rotated clockwise, the second tow rope 6 is towed by the slide rotating portion 17. Further, at this time, since the first tow rope 5 also has a structure that is not affected by the slide rotating portion 17, it tries to stay toward the tip side by the reaction force of the loop member 11. As a result, as shown in FIG. 3, the capturing unit 4 is twisted counterclockwise toward the front. In this case, when the object to be collected is located on the lower side of the capture unit 4 with respect to FIG. 3, the object to be collected can be effectively captured by the capture unit 4.

On the other hand, when the slide rotating portion 17 is slid backward, the first and second tow ropes 5 and 6 are pulled backward at the same time. As a result, as shown in FIG. 4, the capturing portion 4 is curved rearward through the front side of FIG. 4, and is in a substantially folded state. In this case, when the object to be collected is located in front of the capture unit 4 in FIG. 4, the object to be collected can be reliably captured by the capture unit 4.

Alternatively, after the slide rotating portion 17 is rotated in one direction or the other direction to precede the traction of one of the first and second traction lines 5 and 6, both of them finally have the same traction amount. It is possible to perform an operation of sliding the slide rotating portion 17 to a possible rearward position while returning the rotation amount of the slide rotating portion 17 to the initial state.

According to this, as shown in FIG. 4, the capture unit 4 is in a substantially folded state while guiding the collection object located on the upper side or the lower side of the capture unit 4 to the front side in FIG. 2 or FIG. The object to be collected can be reliably captured on the front side by the capture unit 4.

The object to be recovered captured in this way can be recovered by taking out the medical recovery device 1 together with the endoscope.

According to the present embodiment, since the first tow rope 5 and the second tow rope 6 for pulling the loop member 11 are provided, the capture unit 4 is clocked by the rotation operation and the slide operation of the slide rotation unit 17 of the operation unit 13. It can be deformed in a manner that involves a clockwise or counterclockwise twist and a backward curve. As a result, the object to be collected located above, below, or in front of the capturing unit 4 in FIGS. 2 and 3 can be easily collected.

Further, since the first tow rope 5 and the second tow rope 6 intersect in front of the front end of the sheath portion 2 when the movement operating member 3 is located at the second position P2, the first and second tow ropes 5 , 6 can be towed the outward path portion 9 or the return path portion 10 of the capture material 12 in a state of having a more angle with respect to the front-rear direction. As a result, the twisting deformation of the capturing unit 4 can be performed more effectively.

FIG. 5 shows an operation unit 13b of the medical recovery device 1b according to the second embodiment of the present invention. The operation unit 13b is also for performing the movement operation of the movement operation member 3 and the towing operation of the first and second tow ropes 5 and 6, similarly to the operation unit 13 of the first embodiment. The configuration other than the operation unit 13b is the same as in the case of the first embodiment.

The operation unit 13b is provided with a main body portion 14b fixed to the rear end portion of the sheath portion 2 and a main body portion 14b fixed to the rear end portion of the movement operation member 3 so as to be slidable in the front-rear direction with respect to the main body portion 14b. A main slide portion 15b for moving the member 3 back and forth between the first position P1 and the second position P2 is provided.

The main body portion 14b is provided with a first tow slide portion 18 to which the rear end portion of the first tow rope 5 is fixed so as to be slidable in the front-rear direction. Further, the main body portion 14b is provided with a second tow slide portion 19 to which the rear end portion of the second tow rope 6 is fixed so as to be slidable in the front-rear direction. Note that FIG. 5 shows a state in which the first traction slide portion 18 is slid forward and the second traction slide portion 19 is slid rearward.

When the medical collection device 1b collects the object to be collected, the capture unit 4 is in the state shown in FIG. 1 as in the case of the first embodiment. Next, the first and second tow slide units 18 and 19 of the operation unit 13 are operated, and the capture unit 4 captures the object to be collected.

For example, by sliding the first traction slide portion 18 backward, the first traction rope 5 can be towed in the same manner as when the slide rotation portion 17 is rotated counterclockwise in the first embodiment. As a result, the object to be collected located above the capture unit 4 in FIG. 2 can be easily captured by the capture unit 4.

Further, by sliding the second tow slide portion 19 rearward, the second tow rope 6 can be towed in the same manner as in the case where the slide rotation portion 17 is rotated clockwise in the first embodiment. As a result, the object to be collected located below the capture unit 4 in FIG. 3 can be easily captured by the capture unit 4.

Further, by sliding the first and second tow slide portions 18 and 19 rearward at the same time, the first and second tow ropes 5 are slid rearward as in the case where the slide rotating portion 17 is slid rearward in the first embodiment. , 6 can be towed backwards at the same time. As a result, as shown in FIG. 4, the collection target located on the front side of the capture unit 4 can be reliably captured by the capture unit 4.

Further, the operation of sliding both the first and second traction slide portions 18 and 19 backward can be performed with one of them leading. As a result, as shown in FIG. 4, the capture unit 4 is brought into a substantially folded state and collected while guiding the collection target located on the upper side or the lower side of the capture unit 4 in FIGS. 2 and 3 toward the front side. The object can be reliably captured by the capturing unit 4.

The object to be recovered captured in this way can be recovered by taking out the medical recovery device 1 together with the endoscope.

Also in this embodiment, as in the case of the first embodiment, by operating the operation unit 13b, the capture unit 4 can be deformed in a manner accompanied by a clockwise or counterclockwise twist and a backward curve. .. As a result, the object to be collected located on the upper side, the lower side, or the front side of the capturing unit 4 can be easily collected.

Although the embodiments of the present invention have been described above, the present invention is not limited thereto. For example, the main body portion 14, the main slide portion 15, and the first and second traction slide portions 18 and 19 may be provided with ring-shaped knobs 20 for convenience of operation.

Further, when the sheath portion 2 is composed of an inner cylinder 7 having 3 lumens (triple lumen) and an outer cylinder 8 having 1 lumen as shown in FIG. 6, in the cross section of the inner cylinder 7, as shown in FIG. The center of the movement operation member 3 may be offset from the center of the inner cylinder 7 so that the first tow rope 5, the second tow rope 6, and the movement operation member 3 form a triangle. According to this, since a moment around the axis is generated in the movement operation member 3 by the traction force of the first traction rope 5 and the second traction rope 6, the twisting of the supplementary portion 4 can be generated more effectively.

1, 1b ... Medical recovery device, 2 ... Sheath part, 3 ... Movement operation member, 4 ... Scavenging part, 5 ... First tow rope, 6 ... Second tow rope, 7 ... Inner cylinder, 8 ... Outer cylinder, 9 ... Outward route, 10 ... Return, 11 ... Loop member, 12 ... Scavenger, 13, 13b ... Operation unit, 14, 14b ... Main body, 15, 15b ... Main slide, 17 ... Slide rotation, 17a ... Long Hole, 17b ... Rotation axis, 18 ... 1st tow slide, 19 ... 2nd tow slide, 20 ... Knob.

Claims (4)

With the sheath
A movement operation member that is passed through the inside of the sheath portion and is moved back and forth between the first position and the second position in the sheath portion.
A catching portion provided at the front end of the moving operation member for catching a recovery object,
A first tow rope and a second tow rope to be pulled to deform the catching portion are provided.
The catching part is
An elastically deformable loop member having an outward path portion and a return path portion starting from the front end of the movement operation member to form a closed loop,
A sheet-like or bag-like flexible scavenger whose peripheral edge or opening edge is held by the outward path portion and the return path portion.
When the movement operation member is located at the first position, it is housed in the front end portion of the sheath portion, and when the movement operation member is located at the second position, it protrudes from the tip of the sheath portion and expands forward. The loop member is configured to form the scavenger into a flat or concave shape.
One end of the first tow rope is fixed to a portion other than the rear end portion in the outward path portion, and the other end can be towed rearward via one side of the front and back sides of the scavenger and the inside of the sheath portion. Provided in
One end of the second tow rope is fixed to a portion other than the rear end portion of the return path portion, and the other end can be towed rearward via the one side of the scavenger and the inside of the sheath portion. A medical collection device characterized in that it is provided in. 1. The first tow rope and the second tow rope are provided so as to intersect each other in front of the front end of the sheath portion when the movement operating member is located at the second position. The medical collection device described in. An operation unit for performing a movement operation of the movement operation member and a traction operation of the first and second traction ropes is provided.
The operation unit
The main body fixed to the rear end of the sheath and
The rear end portion of the movement operation member is fixed and is provided so as to be slidable in the front-rear direction with respect to the main body portion, and the movement operation member is moved back and forth between the first position and the second position. Main slide part for
The main body is provided with a slide rotating portion that is slidable in the front-rear direction and is rotatably provided around a rotation axis that intersects the front-rear direction.
The slide rotating portion is characterized in that the rear end portions of the first and second traction ropes are fixed to one side and the other side in a direction intersecting the axis toward the front, respectively. The medical collection device according to 1 or 2. An operation unit for performing a movement operation of the movement operation member and a traction operation of the first and second traction ropes is provided.
The operation unit
The main body fixed to the rear end of the sheath and
The rear end portion of the movement operation member is fixed and is provided so as to be slidable in the front-rear direction with respect to the main body portion, and the movement operation member is moved back and forth between the first position and the second position. Main slide part for
A first tow slide portion that is slidably provided in the front-rear direction with respect to the main body portion and to which the rear end portion of the first tow cord is fixed.
The medical treatment according to claim 1 or 2, further comprising a second traction slide portion that is slidable in the front-rear direction with respect to the main body portion and has a second traction slide portion to which the rear end portion of the second traction cord is fixed. Recovery device for.

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