CN111449713A

CN111449713A - Bull hemostatic clamp and be convenient for shift operation's bull hemostatic clamp

Info

Publication number: CN111449713A
Application number: CN202010265877.9A
Authority: CN
Inventors: 卢光荣; 钟金伟; 吴利敏; 夏盛隆; 叶梦思
Original assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Current assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-07-28
Anticipated expiration: 2040-04-07
Also published as: CN112545605A; CN111449713B

Abstract

The invention relates to a hemostatic clamp and a multi-head hemostatic clamp convenient for gear shifting operation, which comprise an inner barrel and a sheath tube, wherein a movable sleeve is sleeved on the inner barrel, the inner barrel is arranged in a hollow manner, a sliding groove arranged along the length direction is formed in the wall of the inner barrel, a sliding block is arranged on the inner wall of the movable sleeve, the sliding block is arranged in the sliding groove, and the movable sleeve can move relative to the inner barrel through the sliding block and the sliding groove; a rotating mechanism is arranged between the inner barrel and the sheath tube, the rotating mechanism adjusts the pulling mechanism to pull and control different operating rods through rotation, and after the operating ends of the operating rods penetrate through the sheath tube, the operating ends are connected with a plurality of hemostatic clamps. The invention can respectively control a plurality of different operating rods by using the same operating handle, thereby avoiding the replacement actions of taking out and inserting different surgical instruments in the endoscopic surgery process, saving the instrument replacement time in the endoscopic surgery and reducing the body burden of a patient in the surgery process.

Description

Bull hemostatic clamp and be convenient for shift operation's bull hemostatic clamp

Technical Field

The invention relates to the field of medical auxiliary equipment machinery, in particular to a multi-head hemostatic clamp and a multi-head hemostatic clamp convenient for gear shifting operation.

Background

The gastrointestinal hemorrhage is a common emergency in internal medicine, bleeding appears on some affected parts, such as duodenal bulbar ulcer bleeding stage and intestinal polyp falling off, and the bleeding is difficult to stop bleeding and heal in a short time by simple drug treatment. With the development of the endoscopic hemostasis technology, the hemostasis by adopting a hemostatic clamp under an emergency endoscope becomes the first choice for treating the digestive tract hemorrhage.

At present, generally use clinically to hold and put the ware and press from both sides the hemostasis clamp and put into patient's internal hemostasis of pressing from both sides, the hemostasis clamp hemostasis is mainly applicable to the arteriolar hemorrhage, and the position of bleeding most bleed is comparatively ruddy, requires the hemostasis process rapidly, and need place a plurality of hemostatic clamps and stanch. Therefore, a physician is required to master the performance of the hemostatic clip and holder, and to assist with the use of skilled assistants, one assistant placing the holder and hemostatic clip in the body and the other assistant describing the installation of the hemostatic clip on the other holder, the two holders and assistants operating in turn to stop bleeding, and there is still time between the removal and insertion of the holders, while the bleeding site is still bleeding.

The operation process that foretell needs to use a plurality of hemostatic clamps to stanch needs medical personnel many, increases personnel's cost and the time cost in the operation process, and the process is long-consuming, increases patient's bleeding volume, aggravates patient's health burden.

Disclosure of Invention

The invention aims to provide a multi-head hemostatic clamp and a multi-head hemostatic clamp convenient for gear shifting operation, which can respectively control a plurality of different operating rods by using the same operating handle, thereby avoiding the replacement actions of taking out and inserting different surgical instruments in the endoscopic surgery process, saving the instrument replacement time in the endoscopic surgery and reducing the physical burden of a patient in the surgery process.

In order to realize the purpose of the invention, the invention adopts the following technical scheme: the utility model provides a bull hemostatic clamp, includes that inner tube, cover establish the removal cover and a plurality of action bars in the inner tube outside, remove the cover and include a plurality of sliders that set up along inner tube outer wall circumference, set up the spout that sets up along length direction on the section of thick bamboo wall of inner tube, be equipped with the slider on the inner wall of slider and inner tube contact respectively, each is independent the slider passes through slider and spout and can takes place to remove relatively the inner tube, the inner tube is the cavity setting, the action bars is including drawing end and operation end, and is a plurality of the end of drawing of action bars all sets up the inside at the inner tube, it fixes respectively on the slider of different sliders to draw the end, the tip of inner tube is equipped with the sheath pipe, the operation end of action bars passes be equipped with hemostatic clamp behind the sheath pipe respectively.

Compared with the prior art, the multi-head hemostatic clamp adopting the technical scheme has the following beneficial effects: be equipped with the combination of multiunit slider and hemostatic clamp on same inner tube, a plurality of different hemostatic clamps get into the operation position through same sheath pipe, and the user can use the hemostatic clamp of the corresponding hemostatic clamp of different slider operation according to the demand of operation, reaches the purpose of biopsy. In the process, the medical instrument does not need to be taken out of the endoscope sheath and then inserted into a new hemostatic clamp, so that the operation is more convenient and faster, and the time in the operation is saved.

Preferably, the movable sleeve comprises three mutually independent movable sliding parts, three operating rods are arranged in the inner barrel and are fixed on the different sliding parts respectively, three hemostatic clamps can be arranged on the same inner barrel, and a user can rapidly use the three hemostatic clamps to clamp and stop bleeding without replacing the holder according to requirements.

In order to realize the purpose of the invention, the invention also adopts the following technical scheme: a multi-head hemostatic clamp convenient for gear shifting operation comprises an inner barrel and a sheath tube, wherein a moving sleeve is sleeved on the inner barrel, the inner barrel is hollow, a sliding groove arranged along the length direction is formed in the barrel wall of the inner barrel, a sliding block is arranged on the inner wall of the moving sleeve and is arranged in the sliding groove, and the moving sleeve can move relative to the inner barrel through the sliding block and the sliding groove; a rotating mechanism is arranged between the inner cylinder and the sheath tube, the rotating mechanism comprises a rotating drum and a plurality of operating rods, and the rotating drum can be rotatably fixed at the end part of the inner cylinder; the operating rod rotates along with the rotary drum, the operating rod can enter and exit the rotary drum along the direction in which the movable sleeve moves relative to the inner drum, and the entering and exiting direction of the operating rod is the length direction of the operating rod; the utility model discloses a hemostatic forceps, including the sheath pipe, the operating rod is including drawing end and operating end, the pipe is got in drawing of operating rod is close to inner tube one side, it gets the mechanism to be equipped with the drawing that is used for drawing the operating rod on the removal cover, slewing mechanism draws through rotation regulation and gets the mechanism and draw and get and control different operating rod, and is a plurality of the operating end of operating rod passes behind the sheath pipe, connect a plurality of hemostatic clips.

Compared with the prior art, the multi-head hemostatic clamp convenient for gear shifting operation has the following beneficial effects:

1. the hemostatic clips can be rapidly clamped at the internal part needing hemostasis without repeatedly taking out and inserting the hemostatic clips and the action of the holding device, so that the process of repeatedly installing the hemostatic clips on the holding device in the operation process is omitted, and the operation time is saved.

2. The invention can quickly fix a plurality of hemostatic clips in an endoscope wound which needs to be stopped by using the plurality of hemostatic clips, reduces the bleeding amount of a patient in the process of taking out and replacing the holder, and can reduce the body burden of the patient in the operation process.

3. Medical personnel just can the different hemostatic clamp of switching control through removing the cover, and the doctor need not to insert and makes a round trip to change with taking out, when satisfying different operation condition demands, makes things convenient for medical personnel's use, need not to correspond different slider and hemostatic clamp, reduces the use degree of difficulty of bull hemostatic clamp.

Preferably, one end of the sheath tube is fixed at the end of the rotary drum far away from the inner cylinder, the other end of the sheath tube is provided with a front cover, the front cover is provided with a plurality of fixing rods, the hemostatic clips are respectively arranged on different fixing rods, and the operating end of the operating rod penetrates through the inner parts of the sheath tube and the fixing rods to be connected and control different hemostatic clips. A plurality of hemostatic clips enter the body of a patient through the same end part, and the smoothness of the multi-head hemostatic clip during entering is guaranteed.

Preferably, the device also comprises a limiting mechanism used for limiting the rotation of the rotating mechanism relative to the inner cylinder, the limiting mechanism comprises a transmission rod and a limiting rod, a through groove is formed in the cylinder wall of the inner cylinder, a limiting block is arranged on the cylinder wall of the inner cylinder, the limiting block and the through groove are arranged along the moving direction of the moving sleeve relative to the inner cylinder, a through hole is formed in the limiting block, the forming direction of the through hole is the same as the moving direction of the moving sleeve, and the limiting rod is movably arranged in the through hole; the transmission rod is rotatably connected with the limiting rod, one end, close to the rotating mechanism, of the limiting rod is a limiting end used for limiting the rotating mechanism to rotate, one end, connected to the inner cylinder in a rotating mode, of the rotating cylinder is a rotating end, the rotating end is provided with a boss protruding inwards in the radial direction in an annular mode, one surface, close to the inner cylinder, of the boss is provided with a sliding groove arranged in the annular mode along the boss, and the bottom of the sliding groove is further provided with a plurality of limiting grooves used for enabling the limiting rod to be inserted into and limiting the rotating cylinder to rotate.

Preferably, the sliding groove is an unclosed annular groove, and two ends of the sliding groove are respectively provided with a limiting groove. Can restrict the relative inner tube pivoted angle of rotary drum, prevent that the rotary drum is rotatory excessive, a plurality of action bars in the inner tube take place the phenomenon of winding or damage.

Preferably, the pulling mechanism is arranged on the inner side of the inner barrel and comprises a partition plate arranged along the radial direction of the inner barrel, the partition plate penetrates through the sliding groove and is connected to the inner wall of the moving sleeve, a pulling rod arranged axially is arranged on the partition plate, one end of the pulling rod is arranged on the partition plate, the other end of the pulling rod is provided with a convex block, and one end of the pulling rod, which is provided with the convex block, is close to the operating rod; the pulling end is provided with a slot which is convenient for the pulling mechanism to pull the operating rod.

Preferably, the pulling rod is arranged in a hollow mode, a connecting piece capable of moving relative to the length direction of the pulling rod is arranged in the pulling rod, a connecting groove is formed in the pulling rod, one end, far away from the moving sleeve, of the transmission rod penetrates through the connecting groove to be connected with the connecting piece, and the connecting piece is rotatably connected with the transmission rod.

Preferably, the end of the pulling end of the operating rod is provided with a clamping groove, one end of the connecting piece, which is close to the operating rod, is provided with a connecting block, the protruding block of the pulling rod is located in the groove of the operating rod, and when the limiting mechanism limits the rotation of the rotating mechanism, the connecting block is located in the clamping groove.

Connecting block and draw-in groove on the connecting piece are mutually supported and can be prevented to draw and get the mechanism and draw the in-process of getting the action bars, and the action bars draws the pole relatively and takes place to slide and drop, guarantees the action bars and draws and get the joint strength of pole two in drawing and getting the in-process.

Drawings

Fig. 1 is a schematic structural view of a multi-head hemostatic clamp according to an embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of an inner cylinder and a slider in embodiment 1.

Fig. 3 is a schematic structural view of a plurality of sliding members in the moving sleeve in embodiment 1.

Fig. 4 is a schematic structural view of a multi-head hemostatic clamp facilitating a gear shifting operation in embodiment 2 of the invention.

Fig. 5 is an exploded view of the gearshift device of this embodiment 2.

Fig. 6 is a schematic structural view of a plurality of hemostatic clamps, a fixing rod and a front cover in this embodiment 2.

Fig. 7 is a sectional view of the hemostatic clip of this embodiment 2.

Fig. 8 is a schematic structural view of the inner cylinder in this embodiment 2.

Fig. 9 is a schematic structural view of a limiting mechanism and a connecting member in embodiment 2.

Fig. 10 is a schematic structural view of the inner cylinder and the interior thereof in this embodiment 2.

Fig. 11 is a schematic structural view of the drum in this example 2.

Fig. 12 is a schematic structural diagram of the movable sleeve in embodiment 2.

Fig. 13 is a schematic cross-sectional view of the movable sleeve in this embodiment 2.

Fig. 14 is a schematic structural diagram of the movable sleeve, the inner cylinder and the inner cylinder in embodiment 2.

Fig. 15 is an exploded view of the movable sleeve, inner cylinder and the interior of the inner cylinder in this example 2.

Fig. 16 is a schematic structural diagram of the operation rod in embodiment 2.

Fig. 17 is a schematic cross-sectional view of the rotating mechanism in the present embodiment.

Fig. 18 is a sectional view schematically showing the structure of the gearshift mechanism in the normal locked state in this embodiment.

Fig. 19 is a schematic sectional view of the shift mechanism in the embodiment when the moving sleeve is pulled backward.

Fig. 20 is a schematic sectional view of the shift mechanism in the embodiment when the moving sleeve is pushed forward.

Fig. 21 is a schematic cross-sectional view of the rotating and gear-shifting mechanism in this embodiment, when the limiting end abuts against the sliding groove and the rotating drum can rotate.

Reference numerals: 1. an inner barrel; 11. a chute; 12. a through groove; 121. a first rotating shaft; 13. a limiting block; 131. a through hole; 14. a first return spring; 15. a ring; 2. moving the sleeve; 2a, 2b, 2c, a slider; 21. a slider; 22. an inner tank; 23. a clamping portion; 3. a limiting mechanism; 31. a transmission rod; 311. a first rotation hole; 312. a second rotation hole; 32. a limiting rod; 321. a limiting end; 322. a second rotating shaft; 4. a rotating mechanism; 41. a rotating drum; 411. a rotating end; 412. a boss; 412a, a sliding groove; 412b, a limit groove; 42. an operating lever; 421. pulling the end; 421a, slotting; 421b, a card slot; 422. an operation end; 5. a pulling mechanism; 51. a partition plate; 52. pulling the rod; 521. a bump; 522. connecting grooves; 523. a second return spring; 6. a connecting member; 61. connecting blocks; 7. a sheath tube; 8. a hemostatic clamp; 9. a front cover; 91. and (5) fixing the rod.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 3, a multi-head hemostatic clamp, which comprises an inner barrel, a movable sleeve and a plurality of operation rods, the movable sleeve is arranged outside the inner barrel, the movable sleeve comprises a plurality of sliding parts arranged along the circumferential direction of the outer wall of the inner barrel, sliding grooves arranged along the length direction are formed in the wall of the inner barrel, sliding blocks are arranged on the inner wall of the sliding parts and the inner barrel, each independent sliding part can move relative to the inner barrel through the sliding blocks and the sliding grooves, the inner barrel is arranged in a hollow manner, the operation rods comprise pulling ends and operation ends, the pulling ends of the operation rods are arranged inside the inner barrel, the pulling ends are respectively fixed on the sliding blocks of different sliding parts, the end part of the inner barrel is provided with a sheath tube 7, and the operation ends of the operation rods.

When a user wants to use different hemostatic clamps to fix, the user can control different hemostatic clamps to clamp and stop bleeding by controlling different sliding blocks on the inner barrel of the multi-head hemostatic clamp. Be equipped with the combination of multiunit slider and hemostatic clamp 8 on same inner tube, a plurality of different hemostatic clamps 8 get into the operation position through same sheath pipe 7, and the user can use the corresponding hemostatic clamp's of slider operation hemostatic clamp 8 of difference according to the demand of operation, reaches the purpose of biopsy. In the process, the medical instrument does not need to be taken out of the endoscope sheath and then inserted into a new hemostatic clamp, so that the operation is more convenient and faster, and the time in the operation is saved.

As shown in fig. 2 and 3, in this embodiment, the movable sleeve includes three mutually independent movable sliders, and three operating rods are arranged in the inner barrel and fixed on different sliders respectively, and three hemostatic clamps can be arranged on the same inner barrel, so that a user can rapidly use the three hemostatic clamps to clamp and stop bleeding without replacing the holding device as required.

Example 2:

fig. 4 to 21 are schematic structural views of a multi-head hemostatic clamp 8 convenient for gear shifting operation in this embodiment, different from embodiment 1, in this embodiment, the movable sleeve is a complete tubular movable sleeve, and is sleeved on the outer side of the inner cylinder. The different operating rods that a removal cover can control respectively and the hemostatic clamp 8 connected at the operating rod are adjusted through rotating the rotating mechanism arranged on the inner barrel.

The inner cylinder 1 is arranged in a hollow mode, a sliding groove 11 arranged along the length direction is formed in the wall of the inner cylinder 1, and a sliding block 21 is arranged on the inner wall of the moving sleeve 2. The movable sleeve 2 is sleeved on the outer side of the inner cylinder 1, the sliding block 21 on the inner side of the movable sleeve 2 is located in the sliding groove 11 on the inner cylinder 1, the width of the sliding block 21 is the same as that of the sliding groove 11, after the movable sleeve 2 is located in the sliding groove 11 through the sliding block 21, the movable sleeve 2 cannot rotate relative to the inner cylinder 1, and when the sliding block 21 slides in the sliding groove 11 along the length direction, the movable sleeve 2 is driven to slide relative to the inner cylinder 1. Wherein, in order to guarantee the smooth degree that the movable sleeve 2 moves outside the inner cylinder 1, two chutes 11 are symmetrically arranged on the inner cylinder 1, and two sliders 21 are symmetrically arranged on the inner wall of the movable sleeve 2.

As shown in fig. 5, the turning gear shifting device for facilitating the operation under the endoscope of the present embodiment further includes a turning mechanism 4 connected to one end of the inner barrel 1, and the turning mechanism 4 can be rotatably disposed relative to the inner barrel 1. The rotating mechanism 4 comprises a rotating drum 41 and a plurality of operating rods 42, wherein the rotating drum 41 is fixed at one end of the inner cylinder 1 and can rotate relative to the inner cylinder 1; the operating rod 42 rotates along with the drum 41, and the operating rod 42 can move in and out of the drum 41 along the direction in which the moving sleeve 2 moves relative to the inner cylinder 1, and the moving direction of the operating rod 42 is the length direction of the operating rod 42.

The inner cylinder 1 is also internally provided with a limiting mechanism 3 and a pulling structure, and the limiting mechanism 3 can limit the rotation of the rotating mechanism 4 relative to the inner cylinder 1. The pulling mechanism 5 can pull the operating rod 42 in the rotating mechanism 4, pull different operating rods 42, and perform different movements. Wherein, the pulling mechanism 5 passes through the cylinder wall of the inner cylinder 1 and is fixed on the inner wall of the movable sleeve 2, and the pulling mechanism 5 and the movable sleeve 2 move together.

As shown in fig. 8, 9, 10 and 11, the limiting mechanism 3 includes a transmission rod 31 and a limiting rod 32, a through groove 12 is formed on the wall of the inner cylinder 1, a limiting block 13 is arranged on the wall of the inner cylinder 1, the limiting block 13 and the through groove 12 are arranged along the moving direction of the moving sleeve 2 relative to the inner cylinder 1, a through hole 131 is formed on the limiting block 13, and the forming direction of the through hole 131 is the same as the moving direction of the moving sleeve 2.

As shown in the enlarged partial view of fig. 5, the groove wall of the through groove 12 is provided with a first rotating shaft 121; as shown in fig. 5, the transmission rod 31 is provided with a first rotation hole 311 arranged in a strip shape along the length direction of the transmission rod 31, and the first rotation shaft 121 is arranged in the first rotation hole 311. The transmission rod 31 is movably fixed to the inner cylinder 1 through the first rotation shaft 121 and the first rotation hole 311. The driving rod 31 is further provided with a second rotating hole 312 arranged in a strip shape along the length direction of the driving rod 31, the second rotating hole 312 is arranged on the portion of the driving rod 31 located in the inner cylinder 1, correspondingly, the limiting rod 32 is provided with a second rotating shaft 322, the second rotating shaft 322 is arranged in the second rotating hole 312, and the driving rod 31 is rotatably connected with the limiting rod 32 through the second rotating shaft 322 and the second rotating hole 312.

The limiting rod 32 is inserted into the through hole 131 and can move relative to the limiting block 13, and one end of the limiting rod 32 close to the rotating mechanism 4 is a limiting end 321 for limiting the rotation of the rotating mechanism 4. One end of the rotary drum 41 rotatably connected to the inner cylinder 1 is a rotary end 411, the rotary end 411 is provided with an annular boss 412 protruding radially inward, one surface of the boss 412 close to the inner cylinder 1 is provided with a sliding groove 412a annularly arranged along the boss 412, and the bottom of the sliding groove 412a is further provided with a plurality of limiting grooves 412b for inserting the limiting rod 32 to limit the rotation of the rotary drum 41. After the drum 41 is set on the inner cylinder 1, the stopper end 321 of the stopper rod 32 faces the side of the boss 412 where the sliding groove 412a and the stopper groove 412b are provided.

The toggle transmission rod 31 penetrates through one end of the through groove 12 of the inner cylinder 1, the other end of the transmission rod 31 and the limiting rod 32 rotationally fixed on the transmission rod also move, and the limiting rod 32 can only move along the length direction of the limiting rod 32 due to the limitation of the limiting block 13 and the through hole 131 on the limiting block. As shown in fig. 5, when the transmission rod 31 outside the inner cylinder 1 is pulled from the end near the rotation to the other end, the stopper end 321 of the stopper rod 32 gradually approaches the drum 41. When the limiting end 321 abuts against the annular sliding groove 412a, since the limiting end 321 has no other limitation in the sliding groove 412a, the rotating cylinder 41 can still rotate relative to the inner cylinder 1, and at this time, the top of the limiting end 321 on the limiting rod 32 abuts against the sliding groove 412a and moves along the annular sliding groove 412 a. When the stopper 321 slides along the sliding groove 412a and reaches the stopper groove 412b disposed at the bottom of the sliding groove 412a, the stopper 321 enters the stopper groove 412 b. When the limiting end 321 is located in the limiting groove 412b, the limiting end 321 limits the rotation of the rotating cylinder 41 relative to the inner cylinder 1, so as to achieve the purpose of positioning.

In this embodiment, the stopper end 321 of the stopper rod 32 is disposed in a hemispherical shape, and the groove walls and the groove bottoms of the sliding groove 412a and the stopper groove 412b are disposed in an arc shape, so as to reduce the contact area between the stopper end 321 and the sliding groove 412a and the friction force therebetween.

As shown in fig. 18, the stopper end 321 of the stopper rod 32 is located in the stopper groove 412b of the rotary cylinder 41, and the rotary cylinder 41 is in the normal locking state. As shown in the enlarged view of fig. 20, the inner wall of the moving sleeve 2 is provided with an inner groove 22, and one end of the transmission rod 31 exposed outside the inner cylinder 1 is located in the inner groove 22.

As shown in fig. 12 and 13, the pulling mechanism 5 includes a partition plate 51 and a pulling rod 52 provided on the partition plate 51, the pulling mechanism 5 is provided in the inner cylinder 1 and fixed to the movable sleeve 2 through the sliding groove 11 of the inner cylinder 1, and the pulling mechanism 5 is movable together with the movable sleeve 2 relative to the inner cylinder 1. The partition plate 51 is arranged in the inner cylinder 1 along the radial direction of the inner cylinder 1, one end of the pulling rod 52 is arranged on the partition plate 51, the other end of the pulling rod 52 is provided with a projection 521, and the end of the pulling rod 52 provided with the projection 521 is close to the operating rod 42.

Fig. 16 is a schematic structural diagram of the operating rod 42, wherein one end of the operating rod 42 close to the inner cylinder 1 is a pulling end 421, one end of the operating rod 42 far from the inner cylinder 1 is an operating end 422 connected with an endoscopic surgical instrument, and the pulling end 421 is provided with a slot 421a for facilitating the pulling mechanism 5 to pull the operating rod 42. Fig. 14 is a schematic view of the connection structure between the pulling mechanism 5 and the operating rod 42 in the inner cylinder 1, wherein the moving sleeve 2 only shows the structure located on the inner wall of the inner cylinder 1, the structure located on the outer side of the inner cylinder 1 is not shown, the projection 521 of the pulling rod 52 is located in the slot 421a of the operating rod 42, and when the user acts on the moving sleeve 2 and the moving sleeve 2 moves along the chuck direction of the chute 11, the pulling rod 52 follows the moving sleeve 2 to move the operating rod 42 relative to the rotating cylinder 41.

When the limiting end 321 of the limiting mechanism 3 is matched with the limiting groove 412b to limit the rotation of the rotating mechanism 4, in order to ensure that the pulling rod 52 of the pulling mechanism 5 can just pull one operating rod 42 of the operating rods 42 in the pulling movement process, the operating rods 42 of the rotating drum 41 are uniformly arranged in the circumferential direction around the rotating center of the rotating drum 41. Correspondingly, the limiting grooves 412b arranged in the annular chute 11 are also circumferentially and uniformly arranged around the rotation center of the rotary drum 41, and the limiting grooves 412b and the operating rods 42 are in one-to-one correspondence, as shown in fig. 12, three operating rods 42 are arranged inside one rotary drum 41 in the present embodiment, and three corresponding limiting grooves 412b are also arranged.

As shown in fig. 15, which is an exploded view of fig. 14, the pulling rod 52 is hollow, a connecting member 6 capable of moving in a longitudinal direction of the pulling rod 52 is disposed in the pulling rod 52, a connecting groove 522 is disposed on the pulling rod 52, one end of the driving rod 31 far away from the moving sleeve 2 passes through the connecting groove 522 to be connected with the connecting member 6, and the connecting member 6 is rotatably connected with the driving rod 31.

The following describes a specific operation method of the rotary shifting device in the present embodiment with reference to fig. 18 to 21.

As shown in fig. 19, a schematic diagram of the rotary shifting device after half-section is shown, and a partially enlarged schematic diagram in fig. 18 shows a schematic diagram of the structure between the pulling mechanism 5 and the stopper mechanism 3 and the rotating mechanism 4 in the inner cylinder 1. At this time, the stopper end 321 of the stopper rod 32 is located in the stopper groove 412b, and the rotating mechanism 4 cannot rotate relative to the inner cylinder 1. After the position is limited by the limiting mechanism 3, the position of an operating rod 42 in the rotating mechanism 4 corresponds to the position of the pulling rod 52, and the projection 521 of the pulling rod 52 is located in the corresponding slot 421a of the operating rod 42.

Further, a first return spring 14 is provided in the inner cylinder 1, one end of the first return spring 14 is connected to the inner cylinder 1, and the other end of the first return spring 14 is connected to the partition plate 51. A second return spring 523 is further arranged in the pulling rod 52, the second return spring 523 is located in the pulling rod 52 which is arranged in a hollow manner, one end of the second return spring 523 is connected with one end of the connecting piece 6 which is far away from the operating rod 42, and the other end of the second return spring 523 is connected to the partition plate 51 which is connected with the end of the pulling rod 52 which is arranged in a hollow manner.

The rotary shifting device in the enlarged partial view of fig. 18 is in the normal locked state, and the link 6 is located in the pull lever 52 urged in the direction of the operating lever 42 by the second return spring 523. Since one end of the transmission rod 31 is rotatably connected to the connecting member 6 and is rotated by the first rotating shaft 121, when one end of the transmission rod 31 close to the connecting member 6 is rotated toward the operating lever 42 by the connecting member 6, the other end of the transmission rod 31 located in the inner groove 22 of the moving sleeve 2 moves away from the operating lever 42, abuts against the wall of the inner groove 22 as shown in fig. 18, and applies a force to the moving sleeve 2 opposite to the direction toward the operating lever 42. At this time, the first return spring 14 provided in the inner cylinder 1 acts on the partition plate 51, and applies a force in the direction of the operation lever 42 to the partition plate 51 and the moving sleeve 2, and the moving sleeve 2 is in a balanced state and can move in both the front and rear directions by the urging force of the first return spring 14 and the transmission lever 31.

When the rotary gear shifting device is in a normal locking state, a user can drive the pulling rod 52 and the operating rod 42 thereon to move by moving the movable sleeve 2 backwards relative to the inner cylinder 1, so as to achieve the purpose of controlling one operating rod 42 in the plurality of operating rods 42. Fig. 19 is a schematic cross-sectional view of the rotating gearshift device after the user pulls the moving sleeve 2 backward, and at this time, the user applies a force to the moving sleeve 2, the moving sleeve 2 drives the pulling rod 52 to move backward, and the pulling rod 52 drives the corresponding operating rod 42 to move backward because the protrusion 521 of the pulling rod 52 is engaged with the slot 421a of the operating rod 42.

In this embodiment, in order to ensure that the operating rod 42 does not rotate during the moving process and is separated from the pulling rod 52, a clamping groove 421b is formed in the end portion of the pulling end 421 of the operating rod 42, a connecting block 61 is arranged at one end of the connecting member 6 close to the operating rod 42, the projection 521 of the pulling rod 52 is located in the groove of the operating rod 42, and when the limiting mechanism 3 limits the rotation of the rotating mechanism 4, the connecting block 61 is located in the clamping groove 421 b.

Therefore, in fig. 19, when the pulling rod 52 pulls the operating rod 42, the connecting member 6 of the connecting member 6 located in the pulling rod 52 is clamped into the clamping groove 421b of the operating rod 42, so that the operating rod 42 and the pulling rod 52 can be effectively prevented from being separated from each other in the moving process. During the pulling process, the link 6 moves backward together with the pulling lever 52 and the operating lever 42, and compresses the second return spring 523. As shown in fig. 19, the link 6 drives the transmission rod 31 to move, and in this embodiment, the length and width of the inner groove 22 are large enough not to hinder the movement of the transmission rod 31 during the pulling process. When the user cancels the force acting on the moving sleeve 2, the moving sleeve 2 is returned by the first return spring 14, and the link 6 and the transmission rod 31 are returned to the normal locking state of fig. 18 by the second return spring 523.

When the user uses a different operating rod 42 to perform a surgical operation, the moving sleeve 2 is moved forward, as shown in fig. 20, the wall of the inner groove 22 of the moving sleeve 2 acts on the transmission rod 31, the end of the transmission rod 31 located in the inner groove 22 is pushed forward, the portion of the transmission rod 31 located in the inner cylinder 1 moves backward, and the limiting rod 32 and the connecting piece 6 rotatably fixed on the transmission rod 31 are driven to move backward, and the second return spring 523 in the pulling rod 52 is compressed while the limiting end 321 is far away from the limiting groove 412b and the rotating mechanism 4 loses the limiting effect of the limiting mechanism 3 on the limiting rod.

When the user rotates the rotating mechanism 4 in the state of fig. 20 and does not reach the stopper groove 412b corresponding to the next operating lever 42, the moving member 2 is released, and the second return spring 523 compressed at this time allows the link member 6 and the moving member 2 provided with the pull rod 52 to return to the normal locked state shown in fig. 18. In the returning process, the limiting end 321 of the limiting rod 32 moves forward and contacts with the bottom of the sliding groove 412a, at this time, the sliding groove 11 is acted by the forward force of the limiting end 321, but when the rotating drum 41 rotates, the limiting end 321 can slide in the sliding groove 11, and when the rotating drum 41 rotates to the position that the limiting groove 412b corresponds to the position of the limiting end 321, the limiting end 321 is clamped into the corresponding limiting groove 412b under the forward force, and the normal locking state shown in fig. 18 is returned. At this time, the drum 41 cannot be rotated further, and the purpose of connecting different operation levers 42 is achieved.

The middle parts of the two ends of the movable sleeve 2 are provided with clamping parts 23 convenient for clamping fingers, the clamping parts 23 are inwards sunken along the radial direction of the movable sleeve, one end of the inner cylinder 1, which is far away from the rotary drum, is provided with a ring 15 convenient for grasping, a thumb of a user is sleeved in the ring 15, and a middle finger and a forefinger or ring finger are matched and clamped on the clamping parts 23 of the movable sleeve 2 up and down, so that the movable sleeve 2 on the inner cylinder 1 can be controlled to move.

Fig. 6 and 7 show the arrangement structure of three hemostatic clamps 88 on a front cover according to this embodiment, when the operating rod connected to one hemostatic clamp 8 of the three hemostatic clamps 8 receives the pulling force of the movable sleeve, the hemostatic clamp 8 is controlled, and finally the movable sleeve is moved after the hemostatic clamp is clamped at the position required to stop bleeding, so as to further drop the hemostatic clamp 8 from the fixing rod, so that the hemostatic clamp 8 is left in the body of the patient.

The hemostatic clamp 8 in fig. 6 has three changed states, the first hemostatic clamp 8a is in the most initial state, when the multi-head hemostatic clamp 8 enters the body of the patient, the hemostatic scissors arranged on the front cover 99 are all in the state of the first hemostatic clamp 8a, and at this time, a protective sleeve is further arranged on the outer side of the hemostatic clamp 8, and the protective sleeve can ensure that the hemostatic clamp 8 is in a closed state when entering the body of the patient; then, the user controls the operating rod 42 to move through the moving sleeve 22, and pulls the protective sleeve on the hemostatic clamp 8 towards the moving direction, so that the hemostatic clamp 8 is not limited by the protective sleeve and is in a state conveyed by the first hemostatic clamp 8 b; the user then controls the angle of the hemostatic clamp 8 and the closure of the clamp opening, and continues to pull the movable sleeve 22 to control the closure of the hemostatic clamp 8, which is the state of the third hemostatic clamp 8c in fig. 6. At this time, the hemostatic clamp 8 is pulled to be closed by the operation rod 42, and after the user continues to operate and pull the hemostatic clamp 8, the hemostatic clamp 8 falls off from the fixing rod 91 and falls into the body of the patient. Here, the fixing structures of the fixing rod 91 and the hemostatic clamp 8, and the operation rod 42 controlling the opening and closing and the falling of the hemostatic clamp 8 are the prior art, and are not described in detail.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims

1. A bull hemostatic clamp which characterized in that: comprises an inner cylinder (1), a movable sleeve (2) sleeved outside the inner cylinder (1) and a plurality of operating rods (42), wherein the movable sleeve (2) comprises a plurality of sliding parts (2a, 2b, 2c) arranged along the circumferential direction of the outer wall of the inner cylinder (1), a sliding groove (11) arranged along the length direction is formed in the cylinder wall of the inner cylinder (1), sliding blocks (21) are respectively arranged on the inner walls of the sliding parts (2a, 2b, 2c) contacted with the inner cylinder (1), and each independent sliding part (2a, 2b, 2c) can move relative to the inner cylinder (1) through the sliding blocks (21) and the sliding groove (11),

inner tube (1) sets up for cavity, action bars (42) are including drawing end (421) and operation end (422), and are a plurality of draw of action bars (42) is got end (421) and is all set up in the inside of inner tube (1), draw and to be fixed respectively on slider (21) of different sliders (2a, 2b, 2c) end (421), the tip of inner tube (1) is equipped with sheath pipe (7), operation end (422) of action bars (42) pass be equipped with hemostatic clamp (8) behind sheath pipe (7) respectively.

2. The multi-headed hemostatic clip of claim 1, wherein: the moving sleeve (2) comprises three sliding parts (2a, 2b and 2c) which are independent from each other and can move, three operating rods (42) are arranged in the inner cylinder (1), and the three operating rods (42) are respectively fixed on the different sliding parts (2a, 2b and 2 c).

3. The utility model provides a bull hemostatic clamp convenient to shift operation which characterized in that: the inner cylinder (1) is sleeved with a moving sleeve (2), the inner cylinder (1) is arranged in a hollow mode, a sliding groove (11) arranged along the length direction is formed in the wall of the inner cylinder (1), a sliding block (21) is arranged on the inner wall of the moving sleeve (2), the sliding block (21) is arranged in the sliding groove (11), and the moving sleeve (2) can move relative to the inner cylinder (1) through the sliding block (21) and the sliding groove (11);

a rotating mechanism (4) is arranged between the inner cylinder (1) and the sheath tube (7), the rotating mechanism (4) comprises a rotating cylinder (41) and a plurality of operating rods (42), and the rotating cylinder (41) can be rotatably fixed at the end part of the inner cylinder (1); the operating rod (42) rotates along with the rotary drum (41), the operating rod (42) can enter and exit the rotary drum (41) along the direction that the movable sleeve (2) moves relative to the inner drum (1), and the entering and exiting direction of the operating rod (42) is the length direction of the operating rod (42);

operating rod (42) are including drawing end (421) and operating end (422), drawing of operating rod (42) is got the pipe and is close to inner tube (1) one side, it gets mechanism (5) to be equipped with the drawing that is used for drawing and gets operating rod (42) on cover (2) to remove, slewing mechanism (4) are adjusted through rotating and are drawn mechanism (5) and draw and get and control different operating rod (42), and are a plurality of hemostatic clamp (8) are connected in operating end (422) of operating rod (42) passes behind sheath pipe (7).

4. The multi-headed hemostatic clamp for facilitating shift operations according to claim 3, wherein: the utility model discloses a multi-functional mechanical wrench, including rotary drum (41), inner tube (1), binding clip (8), operating rod (42), the one end of sheath pipe (7) is fixed and is kept away from the tip of inner tube (1) in rotary drum (41), the other end of sheath pipe (7) is equipped with protecgulum (9), be equipped with a plurality of dead levers (91) on protecgulum (9), binding clip (8) set up respectively on dead lever (91) of difference, the operation end (422) of operating rod (42) pass the internal connection of sheath pipe (7) and dead lever (91) and control different binding clip.

5. The multi-headed hemostatic clamp for facilitating shift operations according to claim 4, wherein: the device is characterized by further comprising a limiting mechanism (3) used for limiting the rotation of the rotating mechanism (4) relative to the inner cylinder (1), wherein the limiting mechanism (3) comprises a transmission rod (31) and a limiting rod (32), a through groove (12) is formed in the cylinder wall of the inner cylinder (1), a limiting block (13) is arranged on the cylinder wall of the inner cylinder (1), the limiting block (13) and the through groove (12) are arranged along the moving direction of the moving sleeve (2) relative to the inner cylinder (1), a through hole (131) is formed in the limiting block (13), the forming direction of the through hole (131) is the same as the moving direction of the moving sleeve (2), and the limiting rod (32) is movably arranged in the through hole (131);

the transmission rod (31) is rotatably connected with the limiting rod (32), one end, close to the rotating mechanism (4), of the limiting rod (32) is a limiting end (321) used for limiting the rotating mechanism (4) to rotate, one end, connected to the inner cylinder (1), of the rotating cylinder (41) in a rotating mode is a rotating end (411), the rotating end (411) is provided with a boss (412) protruding inwards in the radial direction in an annular mode, one surface, close to the inner cylinder (1), of the boss (412) is provided with a sliding groove (412a) arranged along the boss (412) in an annular mode, and the bottom of the sliding groove (412a) is further provided with a plurality of limiting grooves (412b) used for inserting the limiting rod (32) to limit the rotating cylinder (41) to rotate.

6. The multi-headed hemostatic clamp for facilitating shift operations according to claim 5, wherein: the sliding groove (412a) is an unclosed annular groove, and two ends of the sliding groove (412a) are respectively provided with a limiting groove (412 b).

7. The multi-headed hemostatic clamp for facilitating shift operations according to claim 6, wherein: the pulling mechanism (5) is arranged on the inner side of the inner cylinder (1), the pulling mechanism (5) comprises a partition plate (51) arranged along the radial direction of the inner cylinder (1), the partition plate (51) penetrates through the sliding groove (11) and is connected to the inner wall of the moving sleeve (2), a pulling rod (52) arranged in the axial direction is arranged on the partition plate (51), one end of the pulling rod (52) is arranged on the partition plate (51), a convex block (521) is arranged at the other end of the pulling rod (52), and one end, provided with the convex block (521), of the pulling rod (52) is close to the operating rod (42); the pulling end (421) is provided with a slot (421a) which is convenient for the pulling mechanism (5) to pull the operating rod (42).

8. The multi-headed hemostatic clamp for facilitating shift operations according to claim 7, wherein: draw and get pole (52) and set up for cavity, draw to be equipped with in pole (52) and draw connecting piece (6) that the length direction of getting pole (52) relatively takes place to remove, draw and get and seted up spread groove (522) on pole (52), the one end that removes cover (2) is kept away from in transfer line (31) passes spread groove (522) and is connected with connecting piece (6), connecting piece (6) and transfer line (31) rotatable coupling.

9. The multi-headed hemostatic clamp for facilitating shift operations according to claim 8, wherein: draw end (421) of action bars (42) draw the end portion of getting and seted up draw-in groove (421b), the one end that connecting piece (6) are close to action bars (42) is equipped with connecting block (61), draw lug (521) of getting pole (52) and be located the recess of action bars (42), when stop gear (3) restriction slewing mechanism (4) rotated, connecting block (61) were located in draw-in groove (421 b).