CN218853297U

CN218853297U - Integral bendable guide sheath tube

Info

Publication number: CN218853297U
Application number: CN202221729273.6U
Authority: CN
Inventors: 张钿标; 毛延发; 滑有录
Original assignee: Shenzhen Cooper Medical Co ltd
Current assignee: Shenzhen Cooper Medical Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2023-04-14
Anticipated expiration: 2032-07-05

Abstract

The utility model provides an integrated bendable guiding sheath pipe, which comprises a bendable pipe section and a sheath pipe joint connected with the bendable pipe section, wherein the bendable pipe section comprises at least two tenon-and-mortise plug connectors which are sequentially spliced; the bendable pipe section is used for bending through relative sliding between the mortise and tenon plug connectors when being subjected to bending force. The flexible pipe section of the utility model can be close to the stone fragments in the kidney, and then the stone fragments can be flushed out from the integrated flexible guiding sheath pipe through the water flow poured in the operation, thereby improving the discharging efficiency of the stone fragments; the utility model discloses simple structure, flexible pipeline section lug connection is on the sheath pipe connector, and gets into the flexible pipeline section of human body and can wholly follow the crooked influence that is required shape and does not receive ureter, urethral bending state of arbitrary direction, and the human physiology structure of laminating more has promoted user experience.

Description

Integral bendable guide sheath tube

Technical Field

The utility model belongs to the technical field of the medical treatment, especially, relate to an integral type flexible guide sheath pipe.

Background

A ureter soft lens lithotripsy is to use a thin lens with the diameter of about 3mm to insert into a ureter through urethra and bladder, and then to break up ureteral calculus or kidney calculus and take out. The guide sheath tube is a consumable material commonly used in ureter soft lens operation and is used for establishing a channel which passes through a urethra and a ureter from the outside of a body and directly enters a renal pelvis. The flexible ureteroscope is guided by the guiding sheath tube to directly enter an operation area, can conveniently carry out related operations and is not influenced by the bending state and thickness degree of the ureter and the urethra.

At present, the main body of a guiding sheath used in a flexible ureteroscope operation is a flexible conduit, which generally emphasizes the compression resistance and the torsion resistance, so that after the guiding sheath is placed into a human body along a guide wire, the bending part of a ureter can be relatively straightened through the flexibility of the guiding sheath, and the operations of entering and exiting, rotating and the like of an endoscope are further facilitated, and the guiding sheath has the following defects: because of the flexibility of the guiding sheath, after entering the human body, the guiding sheath cannot adjust the shape according to the bending state of the human body structures such as the ureter and the urethra, and can only be placed at the upper section of the ureter or just enter the position of the renal pelvis to form a channel parallel to the longitudinal axis of the body, and cannot be bent to enter the deeper parts of the renal pelvis and the renal calyx, so that the crushed stones in the operation cannot be accessed, and the stone fragments cannot be flushed out of the guiding sheath through the water flow poured in the operation, and therefore, the removing efficiency of the stone fragments in the ureter soft mirror operation is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is higher to the guide sheath pipe toughness among the prior art, can't be according to the crooked or technical problem such as adjustment shape of human structure, provide an integral type flexible guide sheath pipe.

In view of the above technical problems, an embodiment of the present invention provides an integrated bendable guiding sheath tube, including a bendable tube section and a sheath tube joint connected to the bendable tube section, where the bendable tube section includes at least two mortise and tenon joints, and each mortise and tenon joint is sequentially spliced; the bendable pipe section is used for bending through relative sliding between the mortise and tenon plug connectors when being subjected to bending force.

Optionally, the bendable section is welded or bonded to the sheath fitting.

Optionally, be equipped with first installation department on the flexible pipeline section, be equipped with the second installation department on the sheath coupling, the sheath coupling passes through the second installation department with the connection can be dismantled to first installation department.

Optionally, a limiting part for limiting the relative position between the bendable pipe section and the sheath pipe joint to be unchanged is further provided on the bendable pipe section or/and the sheath pipe joint.

Optionally, the first installation department is for setting up the portion is inhaled to first magnetism on the flexible pipeline section, the second installation department is for setting up on the sheath pipe connector and with the portion is inhaled to second magnetism that first installation department adsorbs the connection.

Optionally, the first installation department is for setting up internal thread or external screw thread on the bendable pipe section, the second installation department is for setting up on the sheath pipe joint and with first installation department threaded connection's external screw thread or internal thread.

Optionally, the first installation part is a clamping groove or a clamping hook arranged on the bendable pipe section, and the second installation part is a clamping hook or a clamping groove arranged on the sheath pipe joint and connected with the first installation part in a buckling mode.

Optionally, the mortise and tenon plug connector comprises a first body, at least two first plug parts and at least two second plug parts, wherein the first plug parts and the second plug parts are symmetrically connected to two opposite sides of the first body; a first inserting sliding groove for the second inserting part of the adjacent mortise and tenon inserting connector to insert and slide relatively is formed between the two first inserting parts; and a second inserting sliding groove which is used for inserting the first inserting parts of the adjacent mortise and tenon inserting parts and can slide relatively is formed between the two second inserting parts.

Optionally, the mortise and tenon plug connector comprises a second body, a first rotating groove arranged on the first side of the second body, a first stop block connected to the second side of the second body, and a first rotating block connected to the second side of the first stop block; the first rotating groove is provided with a first opening for the first stop block of the adjacent tenon-and-mortise plug connector to pass through, and the first rotating groove is used for accommodating the first rotating block of the adjacent tenon-and-mortise plug connector; the maximum width of the first rotating block is larger than the width of the first opening; the mortise and tenon plug connector also comprises a second stop block connected to the inner side wall of the first rotating groove and a second rotating block connected to the first side of the second stop block and positioned in the first rotating groove; a second rotating groove is formed in the first rotating block, and a second opening which is away from the first opening and is used for a second stopper of the adjacent mortise and tenon plug connector to pass through is formed in the second rotating groove; the second rotating groove is used for accommodating a second rotating block of the adjacent mortise and tenon plug connector; the maximum width of the second rotating block is larger than the width of the second opening.

Optionally, the mortise and tenon plug connector further comprises a first clamping groove and a second clamping groove which are respectively arranged on two opposite sides of the second stopper; a first buckle matched with the first clamping groove and a second buckle matched with the second clamping groove are respectively arranged on two opposite sides of the second opening; when the bendable pipe section is bent, the first rotating block and the first rotating groove rotate relatively, and the second rotating block and the second rotating groove rotate relatively.

The utility model discloses an integral type flexible guide sheath pipe divides into flexible pipeline section and sheath coupling two parts with integral type flexible guide sheath pipe, through with the flexible pipeline section sets up to at least two tenon fourth of the twelve earthly branches plug connectors of pegging graft in order to make the flexible pipeline section can be close to the calculus fragment in the kidney, and then washes out the calculus fragment from integral type flexible guide sheath pipe through the rivers of pouring into in the operation, so, has promoted the discharge efficiency to the calculus fragment, avoids the calculus powder to influence the field of vision or the situation that piles up etc. in the kidney and influence operation efficiency to appear, can also avoid the uncertainty of natural calculus removal, promote the calculus clearance; and, the flexible guide sheath pipe of integral type simple structure, flexible pipeline section lug connection are on the sheath pipe connector for the flexible pipeline section that gets into the human body can wholly follow the crooked required shape of arbitrary direction, and do not receive the influence of the curved state of ureter, urethra, and the human physiology structure of laminating more has promoted user experience.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view illustrating an integral bendable guiding sheath according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the mortise and tenon connector of the integral bendable guiding sheath of fig. 1.

Fig. 3 is a schematic view illustrating a structure of an integrated bendable guiding sheath according to another embodiment of the present invention.

Fig. 4 is a schematic view of the structure of the mortise and tenon connector of the integral bendable guiding sheath of fig. 3 according to the present invention.

Fig. 5 is a schematic view of another mortise and tenon joint connector of the integral bendable guiding sheath according to fig. 3 of the present invention.

The reference numerals in the specification are as follows:

1. the flexible pipe section, 2, the sheath pipe joint, 11, the mortise and tenon plug connector, 12, a first installation part, 21, a second installation part, 1101, a first body, 1102, a first plug part, 1103, a second plug part, 1104, a first plug sliding groove, 1105, a second plug sliding groove, 11021, a first plug, 11022, a first connection section, 11041, a first limit port, 11031, a second plug, 11032, a second connection section, 11051, a second limit port, 11023, a first arc-shaped surface, 11033 and a second arc-shaped surface, 11052, a second arc-shaped groove, 11042, a first arc-shaped groove, 1106, a second body, 1107, a first rotating groove, 1108, a first stop block, 1109, a first rotating block, 11071, a first opening, 1110, a second stop block, 1111, a second rotating block, 1112, a second rotating groove, 11121, a second opening, 1113, a third stop block, 1114, a third rotating block, 1115, a third rotating groove, 11151, a third opening, 1116, a first clamping groove, 1117, a second clamping groove, 1118, a first buckle, 1119 and a second buckle.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, an embodiment of the present invention provides an integrated bendable guiding sheath tube, including a bendable tube section 1 and a sheath tube joint 2 connected to the bendable tube section 1, where the bendable tube section 1 includes at least two mortise and tenon connectors 11, and each mortise and tenon connector 11 is inserted in sequence; the bendable pipe section 1 is used for bending through relative sliding between the mortise and tenon plug connectors 11 when being subjected to bending force.

In the embodiment of the utility model, divide into flexible pipeline section 1 and sheath union coupling 2 two parts with integral type flexible guide sheath pipe, through setting up flexible pipeline section 1 to at least two tenon fourth of twelve earthly branches plug connectors 11 that peg graft in order, thus make flexible pipeline section 1 can be close to the calculus fragment in the kidney, and then wash out the calculus fragment from integral type flexible guide sheath pipe through the rivers of pouring into in the operation, so, promoted the discharge efficiency to the calculus fragment, avoided the calculus powder to influence the field of vision or pile up etc. and influence the situation of operation efficiency and appear, can also avoid the uncertainty of natural calculus removal, promote the calculus clearance; and, integral type flexible guide sheath pipe simple structure, flexible pipeline section 1 lug connection is on sheath pipe connects 2 for flexible pipeline section 1 that gets into the human body can wholly follow the crooked required shape that is of arbitrary direction, and does not receive the influence of the crooked state of ureter, urethra, and human physiology structure has been promoted user experience in the laminating more.

In one embodiment, as shown in fig. 1, the bendable pipe section 1 is welded or bonded to the sheath fitting 2. It is understood that the connection manner of the sheath pipe joint 2 and the bendable pipe section 1 includes but is not limited to one or more of bonding, welding, integral forming and the like, as long as the effect of firmly connecting the bendable pipe section 1 and the sheath pipe joint 2 can be achieved.

In an embodiment, as shown in fig. 1, a first installation portion 12 is disposed on the bendable pipe section 1, a second installation portion 21 is disposed on the sheath pipe joint 2, and the sheath pipe joint 2 is detachably connected to the first installation portion 12 through the second installation portion 21. In an embodiment, the bendable pipe section 1 or/and the sheath joint 2 are further provided with a limiting portion for limiting the relative position between the bendable pipe section 1 and the sheath joint 2 to be unchanged, and the limiting portion is used for limiting the relative position between the bendable pipe section 1 and the sheath joint 2 to be unchanged after the bendable pipe section 1 and the sheath joint 2 are connected, so that the connection between the bendable pipe section 1 and the sheath joint is stable.

In an embodiment, as shown in fig. 1, the first installation portion 12 is a first magnetic attraction portion disposed on the bendable pipe segment 1, and the second installation portion 21 is a second magnetic attraction portion disposed on the sheath adapter 2 and connected to the first installation portion 12 in an attracting manner. In an embodiment, the first mounting portion 12 is an internal thread or an external thread provided on the bendable pipe section 1, and the second mounting portion 21 is an external thread or an internal thread provided on the sheath joint 2 and threadedly connected to the first mounting portion 12. In an embodiment, the first mounting portion 12 is a clamping groove or a clamping hook disposed on the bendable pipe segment 1, and the second mounting portion 21 is a clamping hook or a clamping groove disposed on the sheath pipe joint 2 and connected to the first mounting portion 12 in a snap-fit manner. It can be understood that the connection mode of the first installation part 12 and the second installation part 21 includes but is not limited to one or more of magnetic attraction connection, threaded connection, clamping groove or clamping hook, and the like, and the detachable connection mode can be realized as long as the first installation part 12 and the second installation part 21 are firmly connected and the detachable effect can be realized.

In an embodiment, as shown in fig. 1 and fig. 2, the mortise-tenon plug connector 11 includes a first body 1101, at least two first plugging portions 1102 and at least two second plugging portions 1103, where the first plugging portions 1102 and the second plugging portions are symmetrically connected to two opposite sides of the first body 1101; a first plugging sliding groove 1104 is formed between the two first plugging parts 1102, and is used for the second plugging part 1103 of the adjacent mortise-tenon plugging piece 11 to be plugged and to relatively slide; a second plug chute 1105 is formed between the two second plug portions 1103 for the first plug portion 1102 of the adjacent mortise-tenon plug connector 11 to be inserted and to slide relatively. It should be understood that the first body 1101 may be a ring structure, a sheet structure or other shapes, as long as the bendable pipe segment 1 can be bent when the mortise and tenon plug 11 is stretched and/or contracted. Preferably, the first body 1101 is an annular structure, the first insertion part 1102 and the first insertion sliding groove 1104 are distributed on one side of the first body 1101, and the second insertion part 1103 and the second insertion sliding groove 1105 are distributed on the other side of the first body 1101. The plurality of first plugging portions 1102 are plugged with the second plugging sliding grooves 1105 and can slide in the second plugging sliding grooves 1105, and the second plugging portions 1103 are plugged with the first plugging sliding grooves 1104 and can slide in the first plugging sliding grooves 1104, so that a bendable tubular structure is formed between the mortise-tenon plug connectors 11 through the sliding connection relationship.

The embodiment of the utility model provides an in, through setting up tenon fourth of twelve earthly branches plug connector 11 that two at least rings were pegged graft mutually, just tenon fourth of twelve earthly branches plug connector 11 is the unsmooth tenon fourth of twelve earthly branches structure that combines of semicircle type, thereby has realized the effect of 1 universal bending of flexible pipeline section, and can make flexible pipeline section 1 is flexible in certain limit, thereby makes the calculus direction in the kidney that the sheath mouth of integral type flexible guide sheath pipe can be more convenient is close to.

In an embodiment, as shown in fig. 1 and fig. 2, the first plug part 1102 includes a first plug 11021 and a first connection section 11022 connected between the first body 1101 and the first plug 11021; the second plug part 1103 includes a second plug 11031 and a second connection section 11032 connected between the second body 1106 and the second plug 11031; a first limit opening 11041 through which the second connection section 11032 passes is formed in the first plugging chute 1104; the second plugging chute 1105 is provided with a second limiting opening 11051 for the first connection section 11022 to pass through; in a direction perpendicular to the axial direction of the bendable pipe section 1 that is not bent, the maximum width of the first plug 11021 is greater than the width of the second stopper 11051; when the bendable pipe section 1 is bent, the first plug 11021 slides relatively along the second plugging sliding groove 1105; the maximum width of the second plug 11031 is larger than the width of the first limiting opening 11041; when the bendable pipe section 1 is bent, the second plug 11031 slides relatively along the first plug chute 1104. It can be understood that, in a direction perpendicular to the axial direction of the bendable pipe segment 1 that is not bent, the maximum width of the first plug 11021 is greater than the width of the second limiting opening 11051, and the second limiting opening 11051 plays a limiting role, so as to prevent the first plugging part 1102 from being separated from the second plugging sliding groove 1105; the maximum width of the second plug 11031 is greater than the width of the first limiting opening 11041, and the first limiting opening 11041 has a limiting function, so that the second plugging portion 1103 is prevented from being separated from the first plugging sliding groove 1104. It is understood that the maximum width of the first plug 11021 in the direction perpendicular to the axial direction of the bendable pipe section 1 that is not bent is smaller than or equal to the width of the second plug runner 1105, so that the first plug 11021 can slide in the second plug runner 1105; the maximum width of the second plug 11031 is smaller than or equal to the width of the first plugging chute 1104, so that the second plug 11031 can slide in the first plugging chute 1104. It is understood that, in a direction perpendicular to the axial direction of the bendable pipe section 1 that is not bent, the maximum width of the first connection section 11022 is smaller than the width of the second limiting opening 11051, so that when the first plug 11021 slides relatively along the second plugging sliding groove 1105, the first connection section 11022 slides in the second limiting opening 11051; the maximum width of the second connection section 11032 is smaller than the width of the first position-limiting opening 11041, so that when the second plug 11031 slides relatively along the first plugging sliding slot 1104, the second connection section 11032 slides in the first position-limiting opening 11041.

In an embodiment, as shown in fig. 1 and fig. 2, a first arc-shaped surface 11023 is disposed at one end of the first plug 11021 away from the first body 1101, a second arc-shaped surface 11033 is disposed at one end of the second plug 11031 away from the first body 1101, a second arc-shaped groove 11052 matched with the first arc-shaped surface 11023 is disposed at one end of the second plug sliding slot 1105 close to the first body 1101, a first arc-shaped groove 11042 matched with the second arc-shaped surface 11033 is disposed at one end of the first plug sliding slot 1104 close to the first body 1101, the second limiting opening 11051 is formed between the two second plugs 11031, the first plug 11021 can rotate in the second plug sliding slot 1105, the first limiting opening 11041 is formed between the two first plugs 11021, and the second plug 11031 can rotate in the first plug sliding slot 1104.

In an embodiment, as shown in fig. 3 and 4, the mortise and tenon joint connector 11 includes a second body 1106, a first rotation groove 1107 disposed at a first side of the second body 1106, a first block 1108 connected to a second side of the second body 1106, and a first rotation block 1109 connected to a second side of the first block 1108; the first rotating groove 1107 is provided with a first opening 11071 for the first stopper 1108 of the adjacent mortise and tenon connector 11 to pass through, and the first rotating groove 1107 is used for accommodating a first rotating block 1109 of the adjacent mortise and tenon connector 11; the maximum width of the first rotating block 1109 is greater than the width of the first opening 11071; the mortise and tenon plug connector 11 further comprises a second stop 1110 connected to the inner side wall of the first rotating groove 1107, and a second rotating block 1111 connected to the first side of the second stop 1110 and located in the first rotating groove 1107; a second rotating groove 1112 is formed in the first rotating block 1109, and a second opening 11121 which is away from the first opening 11071 and through which the second stopper 1110 of the adjacent mortise and tenon plug connector 11 passes is formed in the second rotating groove 1112; the second rotating groove 1112 is used for accommodating a second rotating block 1111 of the adjacent mortise and tenon plug connector 11; the maximum width of the second rotating block 1111 is greater than the width of the second opening 11121. It can be understood that when the bendable pipe segment 1 is bent, the first rotation block 1109 and the first rotation groove 1107 rotate relatively, and the second rotation block 1111 and the second rotation groove 1112 rotate relatively, when the first rotation block 1109 of two adjacent mortise and tenon connectors 11 abuts against the edge of the first opening 11071 or the second rotation block 1111 abuts against the edge of the second opening 11121, two adjacent mortise and tenon connectors 11 stop rotating. In an embodiment, the maximum width of the second rotating block 1111 is greater than the width of the second opening 11121, so that the second rotating block 1111 can be inserted into the second rotating groove 1112 and rotate without being disengaged; the first rotation groove 1107 and the second rotation groove 1112 have arc-shaped cross sections, the first rotation block 1109 and the second rotation block 1111 have arc-shaped cross sections, and the first rotation block 1109 is adapted to the cross section of the first rotation groove 1107 and the second rotation groove 1112 is adapted to the cross section of the second rotation groove 1112, so that the second rotation block 1111 can rotate in the second rotation groove 1112 while the first rotation block 1109 rotates in the first rotation groove 1107; the second stopper 1110 is used for limiting the rotation angle between the two mortise and tenon plug connectors 11.

The embodiment of the utility model provides an in, through setting up two at least tenon fourth of twelve earthly branches plug connector 11 of pegging graft mutually, just tenon fourth of twelve earthly branches plug connector 11 is the tenon fourth of twelve earthly branches structure of round unsmooth combination, thereby has improved the bending angle of flexible pipeline section 1, thereby make the sheath mouth of integral type flexible guide sheath pipe can be more convenient be close to towards the calculus direction in the kidney.

In an embodiment, as shown in fig. 3 and 4, the mortise and tenon connector 11 further includes a third block 1113 connected to an inner sidewall of the second rotation groove 1112, and a third rotation block 1114 connected to the third block 1113 and located in the second rotation groove 1112; a third rotating groove 1115 is formed in the second rotating block 1111, and a third opening 11151 through which a third block 1113 of the adjacent mortise and tenon plug connector 11 passes is formed in the third rotating groove 1115; the third rotation groove 1115 is used for accommodating a third rotation block 1114 of the adjacent mortise-tenon plug connector 11; the maximum width of the third rotating block 1114 is greater than the width of the third opening 11151; when flexible pipe section 1 is buckled, first rotating block 1109 with first rotating groove 1107 relatively rotates, second rotating block 1111 with second rotating groove 1112 relatively rotates, just third rotating block 1114 with third rotating groove 1115 relatively rotates, adjacent two tenon fourth of twelve earthly branches plug connector 11 first rotating block 1109 with the edge butt of first opening 11071, second rotating block 1111 with the edge butt of second opening 11121 or third rotating block 1114 with the edge butt of third opening 11151, adjacent two tenon fourth of twelve earthly branches plug connector 11 stops rotating. In one embodiment, the maximum width of the third rotation block 1114 is greater than the width of the third opening 11151, so that the third rotation block 1114 can be inserted into the third rotation groove 1115 to rotate without being disengaged; the third rotation groove 1115 is circular in cross section, and the third rotation block 1114 is circular in cross section and is matched with the third rotation groove 1115 in cross section, so that while the first rotation block 1109 rotates in the first rotation groove 1107, the second rotation block 1111 rotates in the second rotation groove 1112, and the third rotation block 1114 rotates in the third rotation groove 1115; the third blocking block 1113 is used to limit the rotation angle between the two mortise and tenon plug connectors 11.

In an embodiment, as shown in fig. 3 and 4, the third opening 11151 is disposed at a predetermined angle with respect to the opening direction of the second opening 11121. It is understood that the opening direction of the third opening 11151 and the second opening 11121 is preset at an angle of 0 to 180 degrees. Preferably, the opening direction of the third opening 11151 and the second opening 11121 is set to a predetermined angle of 90 degrees.

In an embodiment, as shown in fig. 3 and 5, the mortise and tenon plugging member 11 further includes a first locking groove 1116 and a second locking groove 1117 respectively disposed at two opposite sides of the second stopper 1110; a first buckle 1118 matched with the first clamping groove 1116 and a second buckle 1119 matched with the second clamping groove 1117 are respectively arranged at two opposite sides of the second opening 11121; when the bendable pipe section 1 is bent, the first rotation block 1109 and the first rotation groove 1107 rotate relatively, and the second rotation block 1111 and the second rotation groove 1112 rotate relatively.

When the second stop 1110 of two adjacent mortise and tenon connectors 11 is abutted to the edge of the second opening 11121, the two adjacent mortise and tenon connectors 11 stop rotating; when the first buckle 1118 is connected with the first clamping groove 1116 in a clamping mode or the second buckle 1119 is connected with the second clamping groove 1117 in a clamping mode, the relative rotation position between every two adjacent mortise and tenon plug connectors 11 is fixed. In an embodiment, the first catch 1118 and the second catch 1119 are made of soft material, and the first catch 1116 and the second catch 1117 are made of hard material, so that the first catch 1118 and the second catch 1119 and the first catch 1116 and the second catch 1117 can be inserted into each other and separated from each other under a certain force. It is understood that the first buckle 1118 and the second buckle 1119 may also be made of hard and/or soft material, and the first catch 1116 and the second catch 1117 may also be made of soft and/or hard material, as long as the effect that the first buckle 1118 and the first catch 1116 are embedded into each other and separated from each other under a certain acting force and the effect that the second buckle 1119 and the second catch 1117 are embedded into each other and separated from each other under a certain acting force can be achieved. It can be understood that the first engaging groove 1116 and the second engaging groove 1117, and the corresponding first buckle 1118 and the corresponding second buckle 1119 may be respectively disposed on the abutting surfaces of two adjacent mortise and tenon plug connectors 11, as long as the two adjacent mortise and tenon plug connectors 11 can be fixed at a predetermined rotation position when relatively rotating.

The embodiment of the utility model provides an in, through set up draw-in groove (for example first draw-in groove 1116 and second draw-in groove 1117) and buckle (for example first buckle 1118 and second buckle 1119) on the tenon fourth of the twelve earthly branches plug connector 11 that circular unsmooth combination, along with when flexible pipeline section 1 is crooked to predetermined angle, the joint through the draw-in groove buckle makes flexible pipeline section 1 gets into the state of fixed angle. After the flexible endoscope in the integrated flexible guiding sheath is withdrawn, the flexible pipe section 1 is still kept in the fixed angle state, so that the next negative pressure suction stone breaking operation is convenient to perform. If the locking state needs to be released, the flexible lens is reversely bent to drive the bendable pipe section 1 to be bent in the opposite direction, the clamping connection is released through the clamping groove buckle, and the bendable pipe section 1 can be released from the fixed angle state.

The above description is only an embodiment of the present invention, and should not be taken as limiting, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The integral bendable guide sheath pipe is characterized by comprising a bendable pipe section and a sheath pipe joint connected with the bendable pipe section, wherein the bendable pipe section comprises at least two mortise and tenon joint parts, and the mortise and tenon joint parts are sequentially spliced; the bendable pipe section is used for bending through relative sliding between the mortise and tenon plug connectors when being subjected to bending force.

2. The one-piece bendable guiding sheath of claim 1, wherein the bendable tube section is welded or glued to the sheath fitting.

3. The flexible guide sheath pipe of integral type of claim 1, characterized in that, be equipped with first installation department on the flexible pipeline section, be equipped with the second installation department on the sheath coupling, the sheath coupling passes through the second installation department with the connection can be dismantled to the first installation department.

4. The integrated bendable guiding sheath according to claim 3, wherein the bendable pipe section or/and the sheath joint is further provided with a limiting part for limiting the relative position between the bendable pipe section and the sheath joint to be unchanged.

5. The one-piece bendable guiding sheath tube of claim 3, wherein the first mounting portion is a first magnetic attraction portion disposed on the bendable tube section, and the second mounting portion is a second magnetic attraction portion disposed on the sheath tube connector and connected to the first mounting portion.

6. The integrated bendable guide sheath according to claim 3, wherein the first mounting portion is an internal thread or an external thread provided on the bendable pipe section, and the second mounting portion is an external thread or an internal thread provided on the sheath joint and threadedly connected with the first mounting portion.

7. The integral bendable guiding sheath according to claim 3, wherein the first mounting portion is a snap or hook disposed on the bendable tube section, and the second mounting portion is a snap or hook disposed on the sheath connector and snap-connected with the first mounting portion.

8. The integral bendable guide sheath according to claim 1, wherein the mortise and tenon connector comprises a first body, at least two first insertion parts and at least two second insertion parts, the first insertion part and the second insertion part are symmetrically connected to two opposite sides of the first body; a first inserting sliding groove for the second inserting part of the adjacent mortise and tenon inserting connector to insert and slide relatively is formed between the two first inserting parts; and a second inserting sliding groove which is used for inserting the first inserting parts of the adjacent mortise and tenon inserting parts and can slide relatively is formed between the two second inserting parts.

9. The integrated bendable guiding sheath according to claim 1, wherein the mortise and tenon connector comprises a second body, a first rotation groove provided at a first side of the second body, a first stopper connected to a second side of the second body, and a first rotation block connected to a second side of the first stopper; the first rotating groove is provided with a first opening for the first stop block of the adjacent tenon-and-mortise plug connector to pass through, and the first rotating groove is used for accommodating the first rotating block of the adjacent tenon-and-mortise plug connector; the maximum width of the first rotating block is larger than the width of the first opening;

the mortise and tenon plug connector further comprises a second stop block connected to the inner side wall of the first rotating groove and a second rotating block connected to the first side of the second stop block and positioned in the first rotating groove; a second rotating groove is formed in the first rotating block, and a second opening which is away from the first opening and is used for a second stopper of the adjacent mortise and tenon plug connector to pass through is formed in the second rotating groove; the second rotating groove is used for accommodating a second rotating block of the adjacent mortise and tenon plug connector; the maximum width of the second rotating block is larger than the width of the second opening.

10. The integrated bendable guiding sheath pipe according to claim 9, wherein the mortise and tenon connector further comprises a first clamping groove and a second clamping groove respectively arranged at two opposite sides of the second stopper; a first buckle matched with the first clamping groove and a second buckle matched with the second clamping groove are respectively arranged on two opposite sides of the second opening;

when the bendable pipe section is bent, the first rotating block and the first rotating groove rotate relatively, and the second rotating block and the second rotating groove rotate relatively.