CN217723599U - Clip applier with backstop device - Google Patents

Abstract

The utility model provides a execute clamp with backstop device, including casing, sleeve pipe and binding clip, through the sleeve pipe is flexible, the drive the binding clip opens and shuts, install the cylinder in the casing for driving sleeve pipe is flexible. The sleeve is driven by the cylinder, so that the sleeve can be in a telescopic state and can be locked, the resetting of the sleeve is avoided, the failure of a binding clip is caused, the normal operation of the operation is ensured, and the operation effect is improved.

Description

Clamp with backstop

Technical Field

The utility model relates to the technical field of medical equipment, specifically a execute clamp with backstop.

Background

Clip applier is a surgical instrument used to close a clip of tissue, typically a V-clip, including titanium clips, non-absorbable clips, etc., during a surgical procedure.

Present clip of executing in the market all does not set up backstop, and doctor's hand contacts liquid at the operation in-process, can cause to take place to skid when pressing the handle, leads to the percussion handle to reset, and the tissue presss from both sides the inefficacy, and the doctor need change the new tissue clamp and just can accomplish the operation, causes the extension of operation time, influences the effect of operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem in the background art, the utility model discloses a clamp with backstop.

The utility model provides a execute clamp with backstop device, including casing, sleeve pipe and binding clip, through the sleeve pipe is flexible, the drive the binding clip opens and shuts, install the cylinder in the casing for driving sleeve pipe is flexible.

The sleeve is driven by the cylinder, the sleeve can be in a telescopic state and can be locked, so that the resetting of the sleeve is avoided, the failure of a binding clip is caused, the normal operation of an operation is ensured, and the operation effect is improved.

The traditional cylinder occupies a large space and is difficult to install, so that the problem is further improved and solved, specifically, the cylinder comprises a hollow cylinder body and is sleeved with the sleeve, an annular piston is arranged in the cylinder body, and a plurality of rotationally symmetrical piston rods are arranged on the piston.

The air cylinder is required to be connected with an air pipe and an air source, so that the occupied space is large, the cost is high, and the normal operation of the operation is influenced by the air pipe, so that the problem is further improved and solved, specifically, the air cylinder is arranged in the shell, and the air cylinder, the rod cavity and the rodless cavity of the air cylinder are filled with isobaric gas;

the gas in the rod cavity is filled into the gas storage cylinder to realize the extension and locking of the sleeve; and the sleeve is reset by the reverse flow of the gas in the gas storage cylinder into the rod cavity.

The traditional piston rod is difficult to drive and extend, and the structure of the traditional piston rod is complex, so that the problem is further improved and solved, and particularly, a movable handle is hinged to the shell and used for driving the sleeve to extend; the piston rod is fixedly connected with the sleeve.

The concrete gas path structure of the piston rod extending and locking is as follows: a first pipeline is connected between the rod cavity and the air storage cylinder, and a one-way valve is installed on the first pipeline.

The concrete gas circuit structure that the piston rod resets does: and a second pipeline is connected between the air cylinder and the rod cavity and is controlled to be switched on and off by a control valve.

The specific structure of the control valve is as follows: the control valve includes valve body, case and valve rod, the valve body is equipped with:

the first air port is connected with the first pipeline;

the second air port is connected with the second pipeline;

the third air port is connected with the air cylinder;

the first air port and the third air port are communicated all the time;

the valve rod drives the valve core to move, and the second pipeline and the air storage cylinder are controlled to be switched on and off.

The valve rod protrudes out of the shell, and a spring is sleeved on the valve rod, and two ends of the spring are connected with the valve core and the valve body.

Further, the valve rod is horizontally arranged, is arranged at the upper part of the fixed handle and protrudes towards the rear end of the fixed handle. With the arrangement, when the fixed handle is held by hands, the valve rod can be pressed only by leaving out the thumb, so that the operation is simple and convenient.

Drawings

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

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the movable handle and the sleeve;

in the figure: 1. a housing; 2. a sleeve; 3. a binding clip; 4. a cylinder; 5. an air cylinder; 6. a movable handle; 7. a first pipeline; 8. a second pipeline; 9. a one-way valve; 10. a control valve; 11. a first air port; 12. a second gas port; 13. a third gas port; 14. a valve body; 15. a valve core; 16. a valve stem; 17. fixing a handle; 18. a spring; 19. a connecting plate; 20. a fixing plate; 41. a cylinder body; 42. a piston; 43. a piston rod.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The first embodiment is as follows:

as shown in fig. 1, the utility model relates to a clip applier with backstop device, which comprises a shell 1, a sleeve 2 and a binding clip 3, wherein the sleeve 2 is telescopic to drive the binding clip 3 to open and close.

An air cylinder 4 is installed in the housing 1, and a piston rod 43 of the air cylinder 4 is fixedly connected with the casing 2 and used for driving the casing 2 to stretch and contract.

The sleeve 2 is driven by the cylinder 4, so that the sleeve 2 can be in a telescopic state and can be locked, the sleeve 2 is prevented from resetting, the clamp head 3 is prevented from being invalid, the normal operation of the operation is ensured, and the operation effect is improved.

Example two:

compared with the first embodiment, the differences are as follows: as shown in fig. 2, the cylinder 4 includes a hollow cylinder body 41 and is fitted over the sleeve 2. An annular piston 42 is provided in the cylinder 41, and a plurality of rotationally symmetrical piston rods 43 are provided on the piston 42. The outer end of the piston rod 43 is fixedly connected by a connecting plate 19. The sleeve 2 is further provided with a fixed annular fixing plate 20, and the connecting plate 19 is fixedly connected with the fixing plate 20 through bolts. The hollow arrangement of the cylinder body 41 not only has a more compact structure and saves space, but also is more convenient to install.

Example three:

compared with the two examples, the difference is as follows: because cylinder 4 need connect trachea and air supply, not only occupation space is big, and is with high costs, and the trachea still can influence the operation and normally go on moreover, consequently does as follows setting:

as shown in fig. 3, the housing 1 is provided with a hinged movable handle 6 and a fixed handle 17. The drive end of the movable handle 6 engages the sleeve 2, thereby driving the sleeve 2 and the piston rod 43 to extend.

The control valve 10 is further installed in the housing 1 and comprises a valve body 14, a valve core 15 and a valve rod 16, wherein the valve core 15 is a circular plate and is sealed with the valve body 14 through a sealing ring. The valve stem 16 drives the movement of the valve plug 15. The valve body 14 has a first port 11 and a third port 13 at one end and a second port 12 at the other end. The rod cavity of the cylinder 4 is connected with a first air port 11 through a first pipeline 7, and a one-way valve 9 is arranged on the first pipeline 7. The rod chamber is also connected to a second port 12 via a second conduit 8. The third port 13 is connected to the air reservoir 5. The valve rod 16 is sleeved with a spring 18, and two ends of the spring 18 respectively abut against the valve core 15 and the valve body 14 for resetting the valve rod 16. In the initial state, the rod cavity, the rodless cavity and the air cylinder 5 are filled with isobaric gas, the valve core 15 is positioned between the first air port 11 and the second air port 12, and the first air port 11 and the third air port 13 are always in a communicated state.

When the clamp head 3 needs to be closed, the movable handle 6 drives the sleeve 2 to extend, the piston rod 43 extends, the air pressure in the rod cavity rises, the one-way valve 9 is opened, and the air in the rod cavity enters the air storage cylinder 5; the piston 42 is now locked by the air pressure of the rodless chamber, thereby achieving the locking of the extension of the cannula 2.

When the binding clip 3 needs to be opened, the valve rod 16 is driven, the valve core 15 moves towards the direction of the second air port 12 and moves to the other side of the second air port 12, the second air port 12 is communicated with the third air port 13, gas in the gas storage cylinder 5 enters the rod cavity along with the second pipeline 8, and the piston 42 is pushed to move reversely, so that the resetting of the sleeve 2 is realized.

Example four:

compared with the three phases of the embodiment, the differences are as follows: the valve stem 16 is horizontally disposed, is provided at an upper portion of the fixed handle 17, and protrudes toward a rear end of the fixed handle 17. With the arrangement, when the fixed handle 17 is held by a hand, the valve rod 16 can be pressed only by leaving out the thumb, so that the operation is simple and convenient.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims (9)

1. The utility model provides a execute clamp with backstop, includes casing (1), sleeve pipe (2) and binding clip (3), through sleeve pipe (2) are flexible, drive binding clip (3) open and shut, its characterized in that: and a cylinder (4) is arranged in the shell (1) and used for driving the sleeve (2) to stretch.

2. The clip applier with backstop device according to claim 1, wherein: the air cylinder (4) comprises a hollow cylinder body (41) and is sleeved with the sleeve (2), an annular piston (42) is arranged in the cylinder body (41), and a plurality of rotationally symmetrical piston rods (43) are arranged on the piston (42).

3. The clip applier with backstop device as recited in claim 2, wherein: an air storage cylinder (5) is installed in the shell (1), and the air storage cylinder (5), a rod cavity and a rodless cavity of the air cylinder (4) are filled with isobaric gas;

the gas in the cavity with the rod is filled into the gas storage cylinder (5) to realize the extension and locking of the sleeve (2); the sleeve (2) is reset by the reverse flow of the gas in the gas storage cylinder (5) into the rod cavity.

4. A clip applier with backstops as recited in claim 3 wherein: the shell (1) is also hinged with a movable handle (6) for driving the sleeve (2) to extend out; the piston rod (43) is fixedly connected with the sleeve (2).

5. The clip applier with backstop device as recited in claim 4, wherein: a first pipeline (7) is connected between the rod cavity and the air storage cylinder (5), and a one-way valve (9) is installed on the first pipeline (7).

6. The clip applier with backstop device as recited in claim 5, wherein: and a second pipeline (8) is also connected between the air cylinder (5) and the rod cavity, and the second pipeline (8) is controlled to be on or off through a control valve (10).

7. The clip applier with backstop device as recited in claim 6, wherein: the control valve (10) comprises a valve body (14), a valve core (15) and a valve rod (16), wherein the valve body (14) is provided with:

a first air port (11) connected to the first pipeline (7);

a second gas port (12) connected to the second conduit (8);

a third air port (13) connected to the air reservoir (5);

the first air port (11) and the third air port (13) are communicated all the time;

the valve rod (16) drives the valve core (15) to move, and the second pipeline (8) and the air storage cylinder (5) are controlled to be connected and disconnected.

8. The clip applier with backstop device as recited in claim 7, wherein: the valve rod (16) protrudes out of the shell (1), a spring (18) is sleeved on the valve rod (16), and two ends of the spring are connected with the valve core (15) and the valve body (14).

9. The clip applier with backstop device according to claim 8, wherein: the valve rod (16) is horizontally arranged, is arranged at the upper part of the fixed handle (17), and protrudes towards the rear end of the fixed handle (17).

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