CN116407078A - Endoscope forceps channel device - Google Patents

Abstract

The invention provides an endoscope forceps channel device, which comprises a forceps channel pipe and a supporting piece; the supporting piece is arranged at the front end of the forceps channel pipe; the support piece has a furled state and an unfolded state; the first end of the support is close to the forceps channel tube under the condition that the support is in a folded state, and the front end of the forceps channel device can pass through an instrument channel of the head end of an endoscope; the first end of the support is distal from the forceps tube with the support in the deployed state. The invention is convenient to mount and dismount through the instrument channel in operation, achieves the supporting function of the transparent cap, and reduces the pain of patients during diagnosis of the patients.

Description

Endoscope forceps channel device

Technical Field

The invention relates to the technical field of endoscopes, in particular to an endoscope forceps channel device.

Background

The endoscope is a common detection instrument in modern medical diagnosis and treatment, is commonly used for diagnosis and treatment of body parts such as ear, nose and throat, lower respiratory tract, digestive tract, urinary tract, reproductive system, abdominal cavity, thoracic cavity and the like, and has the advantages of convenient application, small wound, clear diagnosis under direct vision, easy biopsy taking and the like.

For the existing endoscope, especially the colonoscope, the transparent cap is arranged at the head end of the endoscope so as to provide an operation space for the treatment of the focus position based on the supporting function of the transparent cap.

The patent document with the application number of 201920025156.3 discloses a telescopic colonoscope transparent cap, and the transparent cap of the colonoscope is stretched to the front through the telescopic loop bar realization part terminal surface to realize the support to the tissue of focus position, but, the terminal surface that this transparent cap stretched out is very limited, and transparent cap mounting structure is complicated, can't realize the transparent cap at the installation and the dismantlement of operation in-process, can only carry out the preoperative installation, causes the size increase of endoscope head end, has increased patient pain sense and the operation degree of difficulty.

Disclosure of Invention

The invention provides an endoscope forceps channel device which is used for solving or improving the problem that the conventional endoscope cannot realize the installation and the disassembly of a transparent cap in the operation process.

The present invention provides an endoscopic forceps channel device comprising: a clamp tube and a support; the supporting piece is arranged at the front end of the forceps channel pipe; the support piece has a furled state and an unfolded state; the first end of the support is close to the forceps channel tube under the condition that the support is in a folded state, and the front end of the forceps channel device can pass through an instrument channel of the head end of an endoscope; the first end of the support is distal from the forceps tube with the support in the deployed state.

According to the invention, the endoscope forceps channel device further comprises a traction piece; the support piece is rotatably arranged at the front end of the forceps channel pipe, one end of the traction piece is connected with the second end of the support piece, and the traction piece is used for driving the support piece to rotate relative to the forceps channel pipe so that the support piece can be switched between a furled state and an unfolded state.

According to the invention, the front end of the forceps channel pipe is radially limited to a first end area and a second end area; the support piece is rotatably arranged in the first end region, and the second end region is provided with a notch; the first end of the support is received in the notch with the support in the collapsed state.

According to the endoscope forceps channel device provided by the invention, when the support piece is in the folded state, the axial distance between the first end of the support piece and the front port of the forceps channel pipe is smaller than the opening depth of the notch along the axial direction; and/or, with the support in the deployed state, the radial distance of the first end of the support relative to the central axis of the instrument channel is greater than the radial distance of the first end of the support relative to the central axis of the endoscope head end.

According to the endoscope forceps channel device provided by the invention, the forceps channel pipe is provided with the first limiting part and the second limiting part; the supporting piece rotates between the first limiting part and the second limiting part relative to the forceps channel pipe; when the supporting piece is in a folded state, the first side surface of the supporting piece is abutted with the first limiting part; the second side surface of the support piece can be selectively abutted with or separated from the second limiting part under the condition that the support piece is in a unfolding state, and the first side surface is opposite to the second side surface.

According to the endoscope forceps channel device provided by the invention, the pipe wall of the forceps channel pipe is provided with a first guide channel; the first guide channel extends along the axial direction of the forceps channel pipe; the traction piece is movably arranged in the first guide channel in a penetrating mode, and a sealing structure is arranged between the traction piece and the inner wall surface of the first guide channel.

According to the present invention there is provided an endoscopic gateway apparatus, the support comprising: a "C" shaped member; the "C" shaped member has a first end and a second end; the first end part and the second end part are opposite to each other and are separated from the outer side of the forceps channel pipe; the first end and the second end each include: a traction end and a rotation end; the traction end is far away from the first end of the C-shaped component and is connected with one end of the traction piece; the rotating end is close to the first end of the C-shaped component and is in rotating connection with the forceps channel pipe.

According to the invention, the endoscope forceps channel device further comprises a control part; the control unit includes: an operating handle, a fixed sleeve and a locking piece; the front end of the operating handle is arranged in the fixed sleeve and is connected with the rear end of the forceps channel pipe; the locking piece is arranged on the side wall of the fixed sleeve; the locking piece is provided with a locking state and an unlocking state, the operating handle is connected with the fixed sleeve under the condition that the locking piece is in the locking state, and the operating handle is separated from the fixed sleeve under the condition that the locking piece is in the unlocking state, so that the operating handle can move in the fixed sleeve.

According to the endoscope forceps channel device provided by the invention, the operating handle is provided with the second guide channel; the second guide channel extends along the length direction of the operating handle, the traction piece movably penetrates through the second guide channel, and the other end of the traction piece stretches to the rear end of the operating handle under the guidance of the second guide channel.

According to the present invention there is provided an endoscopic gateway apparatus, the gateway tube comprising: a main body pipe section and a hard transparent pipe section; the support piece is rotatably arranged at the first end of the hard transparent pipe section, the second end of the hard transparent pipe section is connected with the first end of the main pipe section, and the second end of the main pipe section is the rear end of the clamp pipe.

According to the endoscope forceps channel device, the forceps channel pipe and the supporting piece are arranged, when an endoscope treatment is carried out, the supporting piece can be controlled to be in the furled state, so that the front end of the forceps channel device passes through an instrument channel at the head end of the endoscope, after the front end of the forceps channel device reaches a focus position, the supporting piece is switched to the unfolded state from the furled state, and the first end of the supporting piece supports tissues at the focus position, so that an operation is carried out on the focus position through an operation instrument passing through the forceps channel pipe.

Therefore, the invention is convenient to mount and dismount through the instrument channel in operation, achieves the supporting function of the transparent cap, and reduces the pain of patients in diagnosis of the patients.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first endoscopic gateway provided by the present invention in a collapsed state of a support member;

FIG. 2 is a schematic top view of FIG. 1 provided by the present invention;

FIG. 3 is a schematic view of a first endoscopic gateway provided in the present invention with a support member in an expanded state;

FIG. 4 is a schematic top view of FIG. 3 provided by the present invention;

FIG. 5 is a schematic view of a second endoscopic gateway provided in the present invention with a support member in a collapsed state;

FIG. 6 is a schematic top view of FIG. 5 provided by the present invention;

FIG. 7 is a schematic view of a second endoscopic gateway provided in the present invention with a support member in an expanded state;

FIG. 8 is a schematic top view of FIG. 7 provided by the present invention;

fig. 9 is a schematic perspective view of a control unit according to the present invention;

FIG. 10 is a schematic cross-sectional view of a control section provided by the present invention;

FIG. 11 is a schematic view of the sealing engagement of the traction member with the first guide channel provided by the present invention;

FIG. 12 is one of the schematic structural views of an endoscopic gateway provided by the present invention;

FIG. 13 is a second schematic view of an assembly of an endoscopic gateway provided by the present invention;

FIG. 14 is a third schematic view of an assembly of an endoscopic gateway provided by the present invention;

FIG. 15 is a schematic view of a mechanism for surgical instrument insertion based on the endoscopic gateway apparatus of FIG. 14 provided by the present invention;

reference numerals:

1: a clamp pipe; 2: a support; 3: a traction member;

4: a notch; 5: an endoscope head end; 6: an operation handle;

7: a fixed sleeve; 8: a locking member; 9: an annular limit groove;

10: a sealing structure; 11: a first limit part; 12: a second limit part;

101: a first guide channel; 102: a second guide channel; 61: a rod body;

62: an operation unit; 51: an instrument channel; 13: surgical instruments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

An endoscopic gateway apparatus of the present invention is described below with reference to fig. 1 to 15.

As shown in fig. 1 to 8, the present embodiment provides an endoscopic forceps channel device including: a forceps channel pipe 1 and a supporting piece 2; the support piece 2 is arranged at the front end of the forceps channel pipe 1; the support 2 has a folded state and an unfolded state; with the support 2 in the collapsed state, the first end of the support 2 is proximal to the outer sidewall of the forceps channel tube 1, the front end of the forceps channel device being capable of passing through the instrument channel 51 of the endoscope head end 5; with the support 2 in the deployed state, the first end of the support 2 is remote from the outer side wall of the forceps channel tube 1.

Specifically, in this embodiment, by setting the forceps channel tube 1 and the support member 2, when treatment is performed by the endoscope, the support member 2 can be controlled to be in a folded state, so that the front end of the forceps channel device can pass through the instrument channel 51 of the endoscope head end 5, after the front end of the forceps channel device reaches the focus position on the front side of the instrument channel 51, the support member 2 is switched from the folded state to the unfolded state, and the tissue at the focus position is supported based on the first end of the support member 2, so that the operation is conveniently performed on the focus position by the surgical instrument passing through the forceps channel tube 1.

It can be seen that the forceps channel device of the present embodiment is convenient to be mounted and dismounted through the instrument channel 51 during operation, achieves the supporting function of the transparent cap, and reduces the pain of the patient during diagnosis of the patient.

It should be noted that, the support 2 in this embodiment may be an elastic ring, where the forceps channel tube 1 and the support 2 are hidden in the insertion tube of the endoscope when the insertion portion is inserted into the human body, and the elastic ring is in a compressed state at this time, and after a driving force is applied to the forceps channel tube 1, so that the head end of the forceps channel device passes through the instrument channel, the elastic ring is automatically unfolded by an elastic restoring force; correspondingly, when the head end of the forceps channel device is pulled out of the instrument channel, the head end of the forceps channel tube 1 can be controlled to bend through the action of external force, and the elastic ring can be compressed and deformed under the auxiliary support of tissues at the focus position, so that the head end of the forceps channel device can enter the instrument channel.

For the endoscope of the present embodiment, the endoscope includes an insertion tube and an endoscope head end 5, and a front end of the insertion tube is connected to the endoscope head end 5, wherein the insertion tube is not illustrated in fig. 1 to 15. The endoscopic forceps device shown in this embodiment is movably provided in an insertion tube, and the endoscope head end 5 is provided with an instrument channel 51, a camera, an illumination unit, and the like.

Meanwhile, the endoscope head end 5 may be provided as an integral structure, or may be assembled by at least two assembling parts. Here, the endoscope head end 5 shown in this embodiment may be formed by assembling a main body portion and an assembling portion, in which an instrument channel 51 is configured, and in which a camera and an illumination assembly shown in the above embodiment are provided, the assembling portion has an assembling state and an open state with respect to the main body portion, and in the case that the assembling portion is in the assembling state, the main body portion and the assembling portion are assembled as a whole, and in the case that the assembling portion is in the open state, the assembling portion is located at a side of the main body portion in a radial direction of the endoscope head end 5 so as to enlarge a caliber of an outlet end of the instrument channel 51, or provide a sufficient avoidance space at a front side of the outlet end of the instrument channel 51, so that an operation is facilitated at a front side of the instrument channel 51 while satisfying an operation instrument entering and exiting the instrument channel 51.

Further, in order to facilitate the control of the switching of the support member 2 between the folded state and the unfolded state, the clamping device in this embodiment is further provided with a traction member 3. In this regard, the supporting member 2 is rotatably disposed at the front end of the forceps channel tube 1, one end of the traction member 3 is connected to the second end of the supporting member 2, and the traction member 3 is configured to drive the supporting member 2 to rotate relative to the forceps channel tube 1, so that the supporting member 2 is switched between a folded state and an unfolded state.

The traction element 3 shown in the present embodiment is herein understood to be a traction structure having a certain rigidity, for example, the traction element 3 is a wire rope known in the art. In this embodiment, one end of the traction member 3 may be rotatably connected to the second end of the support member 2, or one end of the traction member 3 may be connected to the second end of the support member 2 through a flexible connection member, and the other end of the traction member 3 may be connected to a driving mechanism, which may be a linear motor as known in the art.

When the focus position of the human body is treated, the endoscope head end 5 can be controlled to reach the focus position through the insertion tube, and then the insertion of the endoscope forceps channel device can be controlled. In operation, the control support 2 is in a collapsed state such that the maximum outer diameter of the front end of the jaw apparatus is smaller than the inner diameter of the instrument channel 51, so that the front end of the jaw apparatus can pass through the instrument channel 51 and protrude to a focal position on the front side of the instrument channel 51; after the front end of the forceps channel device reaches the focus position, the controllable support piece 2 is switched from a furled state to an unfolded state, and the first end of the support piece 2 supports the tissue at the focus position so as to perform operation treatment on the focus position.

Preferably, the support 2 shown in this embodiment is preferably a "C" shaped member; the "C" shaped member has a first end and a second end. The first end and the second end of the "C" shaped member are respectively the second end of the "C" shaped member, and the first end and the second end are oppositely arranged on the outer side of the forceps channel tube 1; the first end and the second end each include: a traction end and a rotation end; the traction end is far away from the first end of the C-shaped component and is rotationally connected with one end of the traction piece 3; the rotating end is close to the first end of the C-shaped component and is rotationally connected with the outer side wall of the forceps channel pipe 1.

In the case that the supporting member 2 is a "C" shaped member, two traction members 3 are provided in the embodiment, and one ends of the two traction members 3 are respectively connected to the first end and the second end of the "C" shaped member in one-to-one correspondence. When a driving force is applied to the other ends of the two traction members 3, the other ends of the two traction members 3 are controlled to synchronously move, so that the C-shaped member can be reliably driven to rotate relative to the forceps channel pipe 1.

In one embodiment, as shown in fig. 1-4, the "C" shaped member further includes an arcuate segment, the first end of the "C" shaped member being connected to one end of the arcuate segment, the other end of the arcuate segment being connected to the second end.

As shown in fig. 1 and 2, when the support 2 is in the folded state, the vertical projection of the front end of the forceps channel device on the plane where the front port of the instrument channel is located in the area where the front port of the instrument channel 51 is located, the maximum outer diameter of the front end of the forceps channel device is smaller than the inner diameter of the instrument channel 51, and the front end of the forceps channel device can smoothly pass through the instrument channel 51 of the endoscope head end 5.

As shown in fig. 3, in order to ensure that the support member 2 can achieve a better supporting effect, the plane of the support member 2 is perpendicular to the axial direction of the instrument channel when the support member 2 is in the unfolded state.

Further, as shown in fig. 4, when the support member 2 is in the unfolded state, the radial distance D11 of the first end of the support member 2 relative to the central axis O1 of the instrument channel may be further set to be greater than the radial distance D12 of the first end of the support member 2 relative to the central axis O2 of the endoscope head end 5, so that the vertical projection of the first end of the support member 2 on the plane of the front port of the instrument channel 51 is located outside the area of the endoscope head end 5, and it is ensured that the support member 2 achieves a larger range of supporting effect on the tissue of the lesion position. Wherein, the first end of the support member 2 shown in the present embodiment corresponds to the middle portion of the arc-shaped section, and the present embodiment may further provide that the radial distance D12 of the first end of the support member 2 with respect to the central axis O2 of the endoscope head end 5 is greater than the radius of the endoscope head end 5.

In another embodiment, as shown in fig. 5 to 8, the "C" shaped member further includes a first straight line segment, a second straight line segment, and a third straight line segment, wherein the first end of the "C" shaped member is connected to one end of the first straight line segment, the other end of the first straight line segment is connected to one end of the second straight line segment, the other end of the second straight line segment is connected to one end of the third straight line segment, and the other end of the third straight line segment is connected to the second end. The first straight line segment is parallel to the third straight line segment, and the first straight line segment and the third straight line segment are perpendicular to the second straight line segment respectively.

As shown in fig. 5 and 6, when the support member 2 is in the folded state, the vertical projection of the front end of the channel device on the plane of the front port of the instrument channel 51 is located in the area of the front port of the instrument channel 51, the maximum outer diameter of the front end of the channel device is smaller than the inner diameter of the instrument channel 51, and the front end of the channel device can smoothly pass through the instrument channel 51 of the endoscope head end 5.

As shown in fig. 7, to ensure that the support member 2 can achieve a better supporting effect, the plane of the support member 2 may be perpendicular to the axial direction of the instrument channel 51 when the support member 2 is in the unfolded state.

Further, as shown in fig. 8, when the support member 2 is in the unfolded state, the radial distance D21 of the first end of the support member 2 relative to the central axis O1 of the instrument channel 51 may be further set to be greater than the radial distance D22 of the first end of the support member 2 relative to the central axis O2 of the endoscope head end 5, so that the vertical projection of the first end of the support member 2 on the plane of the front port of the instrument channel 51 is located outside the area of the endoscope head end 5, and a larger range of supporting effect of the support member 2 on the tissue of the lesion position is ensured. The first end of the support member 2 in this embodiment corresponds to the second straight line segment, and the radial distance D22 of the first end of the support member 2 with respect to the central axis O2 of the endoscope head end 5 may be further set to be greater than the radius of the endoscope head end 5.

As shown in fig. 1 and 5, in order to ensure that the support member 2 can achieve a better folding effect, the present embodiment defines a first end region and a second end region along the radial direction at the front end of the pipe pliers 1; the support piece 2 is rotatably arranged in a first end region, and a notch 4 is arranged in a second end region; with the support 2 in the collapsed state, the first end of the support 2 is received in the notch 4.

Further, the present embodiment may be configured such that, when the support 2 is in the folded state, the axial distance between the first end of the support 2 and the front end of the forceps channel tube 1 is smaller than the opening depth of the notch 4 in the axial direction, so as to ensure that the support 2 is completely located in the accommodating area where the notch 4 is located when the support 2 is in the folded state, and maximize the cross-sectional area of the forceps channel tube 1 on the basis of ensuring that the front end of the forceps channel device can smoothly pass through the instrument channel 51.

Based on the scheme shown in the above embodiment, in order to facilitate reliable control of the support member 2 between the folded state and the unfolded state by the traction member 3, the present embodiment is provided with the first limit portion 11 and the second limit portion 12 on the forceps channel tube 1, and when traction force is applied to the second end of the support member 2 by the traction member 3, the support member 2 can be controlled to rotate between the first limit portion 11 and the second limit portion 12 relative to the forceps channel tube 1.

Specifically, as shown in fig. 1 and 5, the present embodiment can control the support member 2 to rotate clockwise until the support member 2 reaches the collapsed state when a pushing force in the insertion direction is applied to the traction member 3. When the supporting piece 2 is in a folded state, the first side surface of the supporting piece 2 is abutted against the first limiting part 11; at this time, if the pushing force is continuously applied to the traction member 3, the supporting member 2 is still kept in the folded state due to the limiting action of the first limiting portion 11.

As shown in fig. 3 and 7, when a pulling force is applied to the pulling member 3 in a direction away from the insertion direction, the present embodiment can control the support member 2 to rotate counterclockwise until the support member 2 reaches the unfolded state. The second side of the support 2 may selectively abut against or separate from the second limiting portion 12 in the unfolded state of the support 2. When the second side surface of the support member 2 abuts against the second limiting portion 12, if a tensile force is continuously applied to the traction member 3, the support member 2 still maintains the unfolded state due to the limiting action of the second limiting portion 12.

It should be noted here that the first side of the support 2 shown in this embodiment is opposite to the second side; the first limiting part 11 and the second limiting part 12 can be limiting columns arranged on the outer side wall of the forceps channel pipe 1. In the case where the support 2 is a "C" shaped member, the first and second stopper portions 11 and 12 shown in this embodiment are provided on opposite sides of the caliper tube 1.

Based on the scheme shown in the above embodiment, in order to facilitate control of traction force exerted by the traction member 3 on the support member 2, the present embodiment is provided with a first guide channel 101 on the pipe wall of the forceps channel pipe 1; the first guide channel 101 extends in the axial direction of the forceps channel tube 1; the traction member 3 is movably arranged in the first guide channel 101 in a penetrating way, and a sealing structure 10 is arranged between the traction member 3 and the inner wall surface of the first guide channel 101.

As shown in fig. 1 to 8, the first guide passage 101 shown in the present embodiment is provided on the outer wall of the forceps channel tube 1. In the case that the support 2 is a "C" shaped member, in this embodiment, the outer tube walls on opposite sides of the forceps channel tube 1 are respectively provided with first guide channels 101, and the traction members 3 are correspondingly provided in the two first guide channels 101 so as to simultaneously carry out traction on the first end and the second end of the "C" shaped member.

As shown in fig. 11, in order to prevent the liquid in the human body from flowing out along the first guide channel 101, which causes contact contamination, the present embodiment is provided with an annular limiting groove 9 on the sidewall of the traction member 3, and the annular limiting groove 9 extends along the circumferential direction of the traction member 3. The sealing structure 10 in this embodiment includes a sealing ring, the sealing ring is embedded in the annular limiting groove 9, and an outer side surface of the sealing ring contacts an inner wall surface of the first guide channel 101. Thus, when the traction member 3 moves in the first guide channel 101, the sealing ring moves along with the traction member 3, and a contact seal is formed between the sealing ring and the opposite wall surface of the first guide channel 101.

As shown in fig. 9 and 10, in order to facilitate the control of the retraction of the forceps channel tube 1 into or out of the instrument channel, the endoscopic forceps channel device shown in this embodiment is further provided with a control portion.

The control part shown in the embodiment comprises an operation handle 6, a fixed sleeve 7 and a locking piece 8; the front end of the operating handle 6 is arranged in the fixed sleeve 7 and is connected with the rear end of the forceps channel tube 1; the locking piece 8 is arranged on the side wall of the fixed sleeve 7; the locker 8 has a locked state and an unlocked state, and the operating handle 6 is connected with the fixing sleeve 7 in the locked state of the locker 8, and the operating handle 6 is separated from the fixing sleeve 7 in the unlocked state of the locker 8, so that the operating handle 6 can move within the fixing sleeve 7.

Specifically, in this embodiment, when the operation handle 6 is pushed into the fixing sleeve 7, the front end of the endoscope channel device is controlled to extend out of the instrument channel 51 along the insertion direction, and when the operation handle 6 is pulled out of the fixing sleeve 7, the front end of the endoscope channel device is controlled to retract into the instrument channel toward the direction away from the insertion direction until retracting into the insertion tube of the endoscope.

It should be noted here that, in order to satisfy both the movement control of the forceps channel tube 1 and the insertion operation of the surgical instrument, the present embodiment is further provided with a K-type tee for the forceps channel tube 1, the rear end of the forceps channel tube 1 is communicated with the first port of the K-type tee, the second port of the K-type tee is connected with the front end of the operating handle 6, and the third port of the K-type tee serves as the surgical instrument insertion port.

Further, the operating handle 6 shown in the present embodiment includes a rod portion 61 and an operating portion 62, wherein the front end of the rod portion 61 is inserted into the fixed sleeve 7 and connected to the second port of the K-shaped tee, and the rear end of the rod portion 61 is connected to the operating portion 62.

Of course, in order to simultaneously satisfy the movement control of the forceps tube 1 and the insertion operation of the surgical instrument, in the case where the K-type tee is not provided, the present embodiment may directly connect the rear end of the forceps tube 1 with the front end of the operation handle 6, and construct a side hole in the tube wall near the rear end of the forceps tube 1, with the side hole being the surgical instrument insertion port.

Meanwhile, the locking member 8 shown in this embodiment is preferably a locking bolt. After the front end of the endoscope forceps channel device reaches the designated position, the end of the locking bolt can be abutted against the rod body 61 by twisting the locking bolt, so that the operating handle 6 cannot move relative to the fixed sleeve 7, and the position of the front end of the forceps channel device in a human body is ensured to be unchanged.

Accordingly, after the operation is completed, the tip of the tightening bolt is separated from the rod body 61 by unscrewing the tightening bolt, and the retraction of the front end of the jaw apparatus into the instrument channel 51 can be controlled by operating the handle 6.

Further, the operating handle 6 in the embodiment is provided with a second guide channel 102; the second guide channel 102 extends along the length direction of the operating handle 6, the traction piece 3 is movably arranged in the second guide channel 102 in a penetrating mode, and the other end of the traction piece 3 extends to the rear end of the operating handle 6 under the guidance of the second guide channel 102.

As shown in fig. 10, the second guide passage 102 shown in the present embodiment is provided in the rod body portion 61 of the operating handle 6 and extends in the axial direction of the rod body portion 61 so that the rod body portion 61 moves smoothly in the fixing sleeve 7. In the case where two traction members 3 are provided, this embodiment is provided with one second guide passage 102 on each of opposite sides of the rod body 61.

Meanwhile, the operation portion 62 shown in the present embodiment is annular in shape so as to be held by an operator. The traction member 3 shown in the present embodiment is inserted from the front end of the first guide path 101, is extracted from the rear end of the first guide path 101, is inserted from the front end of the second guide path 102 again, and extends from the rear end of the second guide path 102 into the circular area defined by the operation portion 62.

In this embodiment, the rear end of the traction member 3 is provided with a corner, and an operator can conveniently hook the corner by a finger while holding the operation portion 62, so as to apply a pushing force or a traction force to the rear end of the traction member 3.

Based on the scheme shown in the above embodiment, the forceps channel pipe 1 shown in the present embodiment includes: a main body pipe section and a hard transparent pipe section; the first end of the hard transparent pipe section is the front end of the clamp pipe 1, the support piece 2 is rotationally connected with the first end of the hard transparent pipe section, the second end of the hard transparent pipe section is connected with the first end of the main pipe section, and the second end of the main pipe section is the rear end of the clamp pipe 1.

Specifically, in the surgical operation, the main body tube section of the forceps channel tube 1 in the present embodiment is positioned within the insertion tube of the endoscope, and the first end of the hard transparent tube section protrudes from the front side of the instrument channel 51. In this way, the rigid transparent tube section serves both as a bearing component for the support 2 and, based on its transparent nature, provides a substantial image acquisition viewing angle for the camera of the endoscope head end 5.

The procedure of mounting and using the endoscopic forceps channel device according to the present embodiment will be specifically described with reference to fig. 12 to 15. In fig. 12 to 15, the endoscope head end 5 is assembled from two assembled parts.

As shown in fig. 12, when the control portion applies a pushing force to the traction member 3 in the insertion direction, the support member 2 can be brought into a collapsed state, and the first end of the support member 2 is accommodated in the notch 4.

As shown in fig. 13, since the front end of the operating handle 6 is connected to the rear end of the forceps channel tube 1, the operator can insert the front end of the forceps channel device into the fixing sleeve 7 by controlling the front end of the operating handle 6, and can drive the front end of the forceps channel device to pass through the instrument channel of the endoscope head end 5 and reach the focus position on the front side of the instrument channel.

As shown in fig. 14, by holding the operation portion 62 of the operation handle 6, the operator applies a traction force to the traction member 3 in a direction away from the insertion direction, and the support member 2 can be switched from the collapsed state to the expanded state, so that surgical treatment preparation can be performed.

As shown in fig. 15, in the operation, the surgical instrument 13 is inserted into the forceps channel tube 1, and the surgical instrument 13 is delivered to the lesion position where the front end of the forceps channel device is located based on the guidance of the forceps channel tube 1. During this process, the operator always applies traction to the traction element 3, facing away from the insertion direction, so that the support element 2 is always in the unfolded state. Wherein, the function of the support member 2 in the unfolded state is the same as that of the transparent cap of the existing endoscope for supporting the focus position.

Correspondingly, after the operation is finished, the traction piece 3 is loosened, the traction piece 3 is applied with pushing force towards the inserting direction, and the support piece 2 is switched from the unfolding state to the folding state under the combined action of the pushing force of the traction piece 3 and the pressing force of the internal tissues of the human body. Then, by controlling the control operation handle 6, the jaw channel device is pulled into the interior of the instrument channel, and then the instrument channel is withdrawn, so that the working process is completed.

Preferably, the present embodiment also provides an endoscope including: an endoscopic gateway according to any of the preceding claims.

Specifically, since the endoscope includes the endoscopic forceps channel device shown in the above embodiment, the endoscope shown in the present embodiment includes all the technical solutions of the above embodiment. Therefore, at least all the advantages brought by all the technical solutions of the above embodiments are not described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An endoscopic gateway apparatus, comprising:

a clamp tube and a support;

the supporting piece is arranged at the front end of the forceps channel pipe; the support piece has a furled state and an unfolded state;

the first end of the support is close to the forceps channel tube under the condition that the support is in a folded state, and the front end of the forceps channel device can pass through an instrument channel of the head end of an endoscope; the first end of the support is distal from the forceps tube with the support in the deployed state.

2. The endoscopic forceps device according to claim 1, wherein,

further comprises: a traction member;

the support piece is rotatably arranged at the front end of the forceps channel pipe, one end of the traction piece is connected with the second end of the support piece, and the traction piece is used for driving the support piece to rotate relative to the forceps channel pipe so that the support piece can be switched between a furled state and an unfolded state.

3. The endoscopic forceps device according to claim 2, wherein,

the front end of the forceps channel pipe radially defines a first end area and a second end area; the support piece is rotatably arranged in the first end region, and the second end region is provided with a notch;

the first end of the support is received in the notch with the support in the collapsed state.

4. An endoscopic forceps device according to claim 3, wherein,

when the support piece is in a folded state, the axial distance between the first end of the support piece and the front port of the forceps channel pipe is smaller than the opening depth of the notch along the axial direction;

and/or, with the support in the deployed state, the radial distance of the first end of the support relative to the central axis of the instrument channel is greater than the radial distance of the first end of the support relative to the central axis of the endoscope head end.

5. The endoscopic forceps device according to claim 2, wherein,

the forceps channel pipe is provided with a first limiting part and a second limiting part;

the supporting piece rotates between the first limiting part and the second limiting part relative to the forceps channel pipe; when the supporting piece is in a folded state, the first side surface of the supporting piece is abutted with the first limiting part; the second side surface of the support piece can be selectively abutted with or separated from the second limiting part under the condition that the support piece is in a unfolding state, and the first side surface is opposite to the second side surface.

6. The endoscopic forceps device according to claim 2, wherein,

the pipe wall of the forceps channel pipe is provided with a first guide channel; the first guide channel extends along the axial direction of the forceps channel pipe; the traction piece is movably arranged in the first guide channel in a penetrating mode, and a sealing structure is arranged between the traction piece and the inner wall surface of the first guide channel.

7. The endoscopic gateway apparatus according to any one of claims 2 to 6, wherein said support member comprises: a "C" shaped member;

the "C" shaped member has a first end and a second end; the first end part and the second end part are opposite to each other and are separated from the outer side of the forceps channel pipe; the first end and the second end each include: a traction end and a rotation end; the traction end is far away from the first end of the C-shaped component and is connected with one end of the traction piece; the rotating end is close to the first end of the C-shaped component and is in rotating connection with the forceps channel pipe.

8. The endoscopic gateway apparatus according to any one of claims 2 to 6, wherein said endoscopic gateway apparatus further comprises a control portion;

the control unit includes: an operating handle, a fixed sleeve and a locking piece; the front end of the operating handle is arranged in the fixed sleeve and is connected with the rear end of the forceps channel pipe; the locking piece is arranged on the side wall of the fixed sleeve; the locking piece is provided with a locking state and an unlocking state, the operating handle is connected with the fixed sleeve under the condition that the locking piece is in the locking state, and the operating handle is separated from the fixed sleeve under the condition that the locking piece is in the unlocking state, so that the operating handle can move in the fixed sleeve.

9. The endoscopic forceps device according to claim 8, wherein,

the operating handle is provided with a second guide channel;

the second guide channel extends along the length direction of the operating handle, the traction piece movably penetrates through the second guide channel, and the other end of the traction piece stretches to the rear end of the operating handle under the guidance of the second guide channel.

10. The endoscopic gateway apparatus according to any one of claims 1 to 6, wherein said gateway tube comprises: a main body pipe section and a hard transparent pipe section;

the support piece is arranged at the first end of the hard transparent pipe section, the second end of the hard transparent pipe section is connected with the first end of the main pipe section, and the second end of the main pipe section is the rear end of the clamp pipe.

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