CN216629388U - Ureter guide sheath - Google Patents

Abstract

The application discloses ureter guide sheath, including the sheath pipe, arrange the first connector of sheath pipe tip, insert and locate the intraductal expansion pipe of sheath and arrange in the second connector at expansion pipe tip, first connector includes the connecting cylinder, sheath pipe coaxial coupling is in the connecting cylinder, the funnel section of thick bamboo has been arranged to the one end coaxial that the sheath pipe was kept away from to the connecting cylinder, the funnel leads to and has interior table wall, a pair of indent has been arranged on the interior table wall, two indent are about the axis symmetrical arrangement of funnel section of thick bamboo, ureter guide sheath still includes the holder, the holder includes a pair of mutual disposition's handle of pressing, the lantern ring has been arranged between two handles, the lantern ring is connected with the second connector, two handles are pressed and are close to equally dividing of the one end of funnel section of thick bamboo and have do not arranged the elasticity pothook, the tip one-to-arrangement of two elasticity pothooks is in two indent and with two indent adaptations. Through the arrangement, the mechanical stability of the whole ureteral guide sheath in the operation process can be enhanced, and the operation is facilitated.

Description

Ureter guide sheath

Technical Field

The application relates to the field of medical equipment, especially, relate to a ureter guide sheath.

Background

Current ureter guide sheath, including the sheath pipe, be located the sheath pipe connector of sheath pipe tip, insert the expansion pipe of locating in the sheath pipe, the expansion pipe connector of being connected with the expansion pipe and the holder of being connected sheath pipe connector and expansion pipe connector, the holder includes two and presses the handle, be located two and press the pothooks of handle front end and be located two and press the lantern ring between the handle, the lantern ring is connected with the expansion pipe connector, arrange the ka tai with pothook looks adaptation on the sheath pipe connector, press the handle through pressing two simultaneously, make two pothooks along the direction motion of keeping away from each other, thereby reach the effect that the card was held piece and sheath pipe connector and is broken away from.

However, in the prior art, the hook is generally clamped on the outer wall of the sheath tube connector, and when the whole ureteral guide sheath is inserted into the ureter, the two pressing handles are subjected to extrusion force, so that the hook is separated from the sheath tube connector, and the operation is affected.

SUMMERY OF THE UTILITY MODEL

The application provides a ureteral guide sheath, can strengthen the mechanical stability of whole ureteral guide sheath in the operation process, be favorable to the operation.

The application provides a ureter guide sheath, including the sheath pipe, arrange the first connector of sheath pipe tip, insert and locate the intraductal expansion pipe of sheath and arrange in the second connector of expansion pipe tip, first connector includes the connecting cylinder, sheath pipe coaxial arrangement connects in the connecting cylinder, the funnel section of thick bamboo has been arranged to the one end coaxial that the sheath pipe was kept away from to the connecting cylinder, the funnel leads to and has interior table wall, a pair of indent has been arranged on the interior table wall, two indent about the axis symmetrical arrangement of funnel section of thick bamboo, ureter guide sheath still includes the holder, the holder includes a pair of mutual disposition's handle of pressing, two are pressed and have been arranged the lantern ring between the handle, the lantern ring is connected with the second connector, two are pressed equally dividing that the handle is close to the one end of funnel section of thick bamboo and have been arranged respectively the elasticity pothook, the tip one-to-in two indent and with two indent adaptations of two elasticity pothooks.

Through the arrangement, the structure formed by the connecting cylinder and the funnel cylinder is used as a first connecting head to be connected with the clamping piece while connecting the sheath tube, the two pressing grooves are symmetrically arranged on the inner wall of the funnel cylinder, the two elastic clamping hooks on the clamping piece are arranged on the pressing grooves in a one-to-one correspondence manner, the force from the inner wall of the funnel cylinder to the outer wall of the funnel cylinder is applied to the funnel cylinder, namely, when the two elastic clamping hooks apply pressure to the funnel cylinder along the mutually-away direction, the whole clamping piece can be clamped on the first connecting head, when a medical worker holds the whole clamping piece for operation, the hand of the medical worker can act on the two pressing handles, the end parts of the two pressing handles, far away from the elastic clamping hooks, can move close to each other under the kneading action of the hand of the medical worker, and simultaneously, the two elastic clamping hooks can move along the mutually-away direction under the action of the pressing handles to clamp the funnel cylinder, and a lantern ring connected with the second connector is arranged between the two pressing handles, so that the expansion pipe is connected with the whole clamping piece, the mechanical stability of the whole ureteral guide sheath in the operation process can be enhanced, and the operation is facilitated.

Furthermore, the elastic clamping hook comprises a flexible curved handle and a clamping table arranged at the end part of the flexible curved handle, one end of the flexible curved handle in the extending direction of the flexible curved handle is connected with the pressing handle, the clamping table is arranged at the end part, far away from the pressing handle, of the flexible curved handle, the clamping table is arranged in a corresponding pressing groove and matched with the pressing groove, the two pressing handles are symmetrically arranged about the axis of the lantern ring, and the two flexible curved handles are symmetrically arranged about the axis of the lantern ring.

Through the setting, do further injecteing the structure of elasticity pothook, conveniently confirm the concrete position that whole elasticity pothook and indent are connected, the flexible curved handle of elasticity pothook with press the handle to be connected, conveniently press the handle to drive the motion of flexible curved handle, the ka tai makes whole holder be connected with first connector with the indent cooperation.

Based on the ureteral guide sheath, the clamping table of the clamping piece is matched with the pressing groove on the inner side wall of the funnel barrel of the first connecting head, when medical care personnel hold the ureter guide sheath to operate, the end parts of the two press handles tend to be closed by extrusion, thereby leading the two clamping tables far away from each press handle to have the trend of being far away from each other, further leading the two clamping tables to be correspondingly clamped in the two pressing grooves one by one and simultaneously exerting opposite pressures on the inner side wall of the funnel barrel, thereby ensuring that the connection between the clamping piece and the funnel barrel is more stable, enhancing the mechanical stability of the whole ureter guide sheath in the operation process, being beneficial to the operation, and make two flexible curved type handles move in opposite directions through pressing two flexible curved type handles, two flexible curved type handles move in opposite directions can make the card platform follow indent roll-off, conveniently dismantle the holder.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a ureteral access sheath in an embodiment of the present application in a front view;

fig. 2 is a schematic front view in full section of a ureteral access sheath in an embodiment of the present application.

Reference numerals: 1. a sheath tube; 2. a first connector; 21. a connecting cylinder; 22. a funnel barrel; 220. an inner surface wall; 221. pressing a groove; 3. an expansion tube; 4. a second connector; 5. pressing a handle; 6. a collar; 7. an elastic hook; 71. a flexible curved handle; 72. and (7) clamping the table.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1 to 2, the present application provides a ureteral access sheath, which includes a sheath tube 1, a first connector 2 disposed at an end of the sheath tube 1, an expansion tube 3 inserted into the sheath tube 1, and a second connector 4 disposed at an end of the expansion tube 3, wherein the first connector 2 and the second connector 4 are coaxially disposed.

The first connector 2 includes a connecting cylinder 21, and one end of the sheath tube 1 is coaxially connected to the connecting cylinder 21. One end of the connecting cylinder 21 far away from the sheath tube 1 is coaxially provided with a funnel cylinder 22, the funnel cylinder 22 is funnel-shaped, and the connecting cylinder 21 is connected with the small-caliber end of the funnel cylinder 22. The funnel is provided with an inner surface wall 220, a pair of pressure grooves 221 are arranged on the inner surface wall 220, the pressure grooves 221 are positioned at the large-aperture end of the funnel cylinder 22, and the two pressure grooves 221 are symmetrically arranged relative to the axis of the funnel cylinder 22. The ureteral access sheath further comprises a clamp for connecting together the first connector 2 and the second connector 4. The clamping member comprises a pair of oppositely arranged press handles 5, a lantern ring 6 is arranged between the two press handles 5, and the lantern ring 6, the connecting cylinder 21 and the funnel cylinder 22 are coaxially arranged. The lantern ring 6 is connected with the second connector 4 and is coaxially arranged, the two pressing handles 5 are respectively provided with an elastic hook 7 at one end close to the funnel cylinder 22, and the end parts of the two elastic hooks 7 close to the funnel cylinder 22 are correspondingly arranged in the two pressing grooves 221 one by one and are matched with the two pressing grooves 221.

With the above arrangement, the structure formed by the connecting cylinder 21 and the funnel cylinder 22 together as the first connecting head 2 establishes connection with the holder while connecting the sheath 1. The two pressing grooves 221 are symmetrically arranged on the inner wall of the funnel 22, and the two elastic hooks 7 on the clamping piece are arranged on the pressing grooves 221 in a one-to-one correspondence manner, so that a force from the inner wall of the funnel 22 to the outer wall of the funnel 22 is applied to the funnel 22. That is, the two resilient hooks 7 can cause the entire holding member to grip the first connector 2 when they apply pressure to the funnel 22 in a direction away from each other. When the medical staff holds the whole clamping piece for operation, the hands of the medical staff can act on the two press handles 5. The ends of the two press handles 5 far away from the elastic hooks 7 can move close to each other under the kneading action of the hands of the medical staff, and the two elastic hooks 7 can move along the directions far away from each other under the action of the press handles 5 so as to clamp the funnel cylinder 22, and a lantern ring 6 connected with the second connector 4 is arranged between the two press handles 5, so that the expansion pipe 3 is connected with the whole clamping piece. Thereby enhancing the mechanical stability of the whole ureteral guide sheath in the operation process and being beneficial to the operation.

In order to facilitate the installation and the disassembly between the elastic hook 7 and the funnel barrel 22, the elastic hook 7 comprises a flexible curved handle 71 and a clamping table 72 arranged at the end part of the flexible curved handle 71, and one end of the flexible curved handle 71 along the extension direction of the flexible curved handle 71 is connected with the pressing handle 5. The clamping table 72 is arranged at the end part of the flexible curved handle 71 far away from the press handle 5, the clamping table 72 is arranged at the corresponding press groove 221 and is matched with the press groove 221, the two press handles 5 are symmetrically arranged about the axis of the lantern ring 6, and more preferably, the two flexible curved handles 71 are symmetrically arranged about the axis of the lantern ring 6.

Through the arrangement, the structure of the elastic hook 7 is further limited, the specific position of the whole elastic hook 7 connected with the pressure groove 221 is conveniently determined, the flexible curved handle 71 of the elastic hook 7 is connected with the pressing handle 5, the pressing handle 5 conveniently drives the flexible curved handle 71 to move, and the clamping table 72 is matched with the pressure groove 221 to enable the whole clamping piece to be connected with the first connecting head 2.

According to a ureteral guide sheath of the present application, the clamping table 72 of the clamping piece is matched with the pressing groove 221 on the inner side wall of the funnel barrel 22 of the first connecting head 2. When the medical staff holds the ureteral guide sheath to operate, the ends of the two press handles 5 are pressed to be close, so that the two clamping platforms 72 far away from the press handles 5 have the tendency of being far away from each other. Furthermore, the two clamping tables 72 correspondingly clamp the two pressing grooves 221 one by one and apply opposite pressures to the inner side wall of the funnel cylinder 22, so that the connection between the clamping piece and the funnel cylinder 22 is more stable, the mechanical stability of the whole ureteral guide sheath in the operation process can be enhanced, and the operation is facilitated. The two flexible crank handles 71 move towards each other by pressing the two flexible crank handles 71, and the two flexible crank handles 71 move towards each other, so that the clamping table 72 can slide out of the pressing groove 221, and the clamping piece is convenient to disassemble.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

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

Claims (2)

1. A ureteral guide sheath, comprising a sheath tube (1), a first connector (2) arranged at the end of the sheath tube (1), an expansion tube (3) inserted into the sheath tube (1), and a second connector (4) arranged at the end of the expansion tube (3), wherein the first connector (2) comprises a connecting cylinder (21), the sheath tube (1) is coaxially connected to the connecting cylinder (21), a funnel cylinder (22) is coaxially arranged at one end of the connecting cylinder (21) far away from the sheath tube (1), the funnel cylinder has an inner surface wall (220), a pair of pressure grooves (221) is arranged on the inner surface wall (220), two pressure grooves (221) are symmetrically arranged about the axis of the funnel cylinder (22), the ureteral guide sheath further comprises a clamping piece, and the clamping piece comprises a pair of pressing handles (5) which are oppositely arranged, two press handle (5) between arranged lantern ring (6), lantern ring (6) with second connector (4) are connected, two press handle (5) to be close to divide equally of the one end of funnel section of thick bamboo (22) and do not be arranged elastic clamping hook (7), two elastic clamping hook (7) are close to the tip one-to-one of funnel section of thick bamboo (22) is arranged in two indent (221) and with two indent (221) adaptation.

2. The ureteral access sheath of claim 1,

the elastic clamping hook (7) comprises a flexible curved handle (71) and a clamping table (72) arranged at the end part of the flexible curved handle (71), one end of the flexible curved handle (71) along the extension direction of the flexible curved handle (71) is connected with the press handle (5), the clamping table (72) is arranged at the end part of the flexible curved handle (71) far away from the press handle (5), and the clamping table (72) is arranged at the corresponding pressing groove (221) and is matched with the pressing groove (221);

the two press handles (5) are arranged symmetrically with respect to the axis of the collar (6), and the two flexible curved handles (71) are arranged symmetrically with respect to the axis of the collar (6).

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