阅读说明：本技术 一种改进的止血夹弹匣 (Improved hemostatic clip magazine ) 是由 钱建民 居海龙 于 2021-09-18 设计创作，主要内容包括：本发明涉及一种改进的止血夹弹匣,包括匣盒、滑块和推杆,所述匣盒为长条状,其内设有轴向贯通的空腔,其一侧内壁上设有若干让位槽；所述滑块和推杆均为长条片状,能够相互叠合后插入所述空腔,并使所述推杆的后端置于所述匣盒之外；所述滑块的后部设有第一卡扣,能够与所述让位槽相配合,阻止所述滑块向后移动；所述滑块上设有若干让位孔；所述推杆前部设有第二卡扣,能够与所述让位孔相配合,推动所述滑块向前移动；所述匣盒前部安装止血夹；该止血夹能够在所述滑块的推动下向前移动,并从所述匣盒前端移出。本发明可以通过滑块和推杆组合,以及多个卡扣的作用,实现稳定而可控的连续推送止血夹,避免发生卡死现象,确保手术顺利进行。(The invention relates to an improved hemostatic clip magazine which comprises a magazine box, a sliding block and a push rod, wherein the magazine box is long-strip-shaped, an axially through cavity is formed in the magazine box, and a plurality of abdicating grooves are formed in the inner wall of one side of the magazine box; the sliding block and the push rod are both strip sheets, can be mutually overlapped and then inserted into the cavity, and the rear end of the push rod is arranged outside the box; the rear part of the sliding block is provided with a first buckle which can be matched with the abdicating groove to prevent the sliding block from moving backwards; a plurality of abdicating holes are formed in the sliding block; the front part of the push rod is provided with a second buckle which can be matched with the abdicating hole to push the slide block to move forwards; a hemostatic clamp is arranged at the front part of the box; the hemostatic clamp can move forwards under the pushing of the sliding block and move out of the front end of the box. The hemostatic clamp can be stably and controllably pushed continuously through the combination of the sliding block and the push rod and the action of the plurality of buckles, so that the phenomenon of clamping is avoided, and the smooth operation is ensured.)

1. An improved hemostatic clip magazine comprises a magazine box, a sliding block and a push rod, and is characterized in that the magazine box is long-strip-shaped, an axially through cavity is formed in the magazine box, and a plurality of abdicating grooves are formed in the inner wall of one side of the magazine box; the sliding block and the push rod are both strip sheets, can be mutually overlapped and then inserted into the cavity, and the rear end of the push rod is arranged outside the box; the rear part of the sliding block is provided with a first buckle which can be matched with the abdicating groove to prevent the sliding block from moving backwards; a plurality of abdicating holes are formed in the sliding block; the front part of the push rod is provided with a second buckle which can be matched with the abdicating hole to push the slide block to move forwards; a hemostatic clamp is arranged at the front part of the box; the hemostatic clamp can move forwards under the pushing of the sliding block and move out of the front end of the box.

2. The improved hemostatic clip magazine as set forth in claim 1 wherein said relief groove is wedge shaped at the bottom and is inclined toward the rear of said magazine.

3. The improved hemostatic clip magazine as set forth in claim 1 wherein said magazine has ridges on each of its two side walls; the convex edge is arranged in the middle along the axial direction of the box, so that grooves are formed on two sides of the convex edge.

4. The improved hemostatic clip magazine as set forth in claim 1, wherein said first clip is a thin sheet-like short plate having one end connected to said slide block and the other end suspended and tilted toward the rear of said slide block.

5. The improved hemostatic clip magazine as set forth in claim 1 wherein said offset holes are spaced the same distance apart.

6. The improved hemostatic clip magazine as set forth in claim 1 wherein said offset slots are spaced at the same distance as said offset holes to prevent said slide from moving back.

7. The improved hemostatic clip magazine as set forth in claim 1 wherein said slide has a top block at a forward end thereof; the top block is in a block shape, and the longitudinal section of the top block is in an I shape.

8. The improved hemostatic clip magazine as set forth in claim 1 wherein said push rod has a third catch at a rear end thereof; the rear part of casket box inner wall is equipped with and withdraws from the draw-in groove, can with the third buckle cooperatees, the pulling casket box removes.

9. The improved hemostatic clip magazine as claimed in claim 8, wherein the second and third clips are identical in structure, and are each a thin plate, one end of which is connected to the push rod and the other end of which is suspended and tilted toward the front and the rear of the push rod; the second buckle and the third buckle are respectively arranged on two sides of the push rod.

10. The improved hemostatic clip magazine as set forth in claim 1 wherein said push rod rear end is provided with a stop against the rear end of said magazine to ensure that said push rod is inserted to a suitable depth; the rear part of the limiting block is provided with a connecting hole which can be connected with an operating rod of the hemostatic forceps.

Technical Field

The invention relates to a medical instrument, in particular to a magazine provided with a hemostatic clamp, and particularly relates to an improved hemostatic clamp magazine.

Background

At present, in minimally invasive surgery using the continuous hemostatic clip applier, a clip box capable of being preassembled with a plurality of hemostatic clips at one time is mostly used, and infection and bleeding risks caused by withdrawing the clip applier for a plurality of times are avoided. However, most of the existing hemostatic clamp magazines have springs as firing mechanisms, such as the "new hemostatic clamp propelling and closing device" of chinese patent 2016109855146. However, in the actual use process, the design has a serious defect that the front end of the spring is connected with a biological clamp pushing head, and the biological clamp pushing head is used for pushing the hemostatic clamp. In the continuous pushing process, the biological clamp pushing head is extremely easy to be clamped in the box, so that the pushing cannot be continuously realized to cause the interruption of the operation, the clamp forceps need to be pulled out, and the operation can be continuously performed after the obstacles are eliminated.

Therefore, improvements are needed to better meet the use requirements.

Disclosure of Invention

The invention aims to provide an improved hemostatic clamp box aiming at the defects of the prior art, which can realize stable and controllable continuous pushing of hemostatic clamps, avoid the phenomenon of clamping shells and ensure smooth operation.

The technical scheme of the invention is as follows:

an improved hemostatic clip magazine comprises a magazine box, a sliding block and a push rod, wherein the magazine box is long-strip-shaped, an axially through cavity is formed in the magazine box, and a plurality of abdicating grooves are formed in the inner wall of one side of the magazine box; the sliding block and the push rod are both strip sheets, can be mutually overlapped and then inserted into the cavity, and the rear end of the push rod is arranged outside the box; the rear part of the sliding block is provided with a first buckle which can be matched with the abdicating groove to prevent the sliding block from moving backwards; a plurality of abdicating holes are formed in the sliding block; the front part of the push rod is provided with a second buckle which can be matched with the abdicating hole to push the slide block to move forwards; a hemostatic clamp is arranged at the front part of the box; the hemostatic clamp can move forwards under the pushing of the sliding block and move out of the front end of the box.

Further, the bottom of the receding groove is wedge-shaped and inclines towards the rear part of the box.

Furthermore, convex edges are respectively arranged on the side walls of the two sides of the box; the convex edge is arranged in the middle along the axial direction of the box, so that grooves are formed on two sides of the convex edge.

Furthermore, the first buckle is a thin sheet-shaped short plate, one end of the first buckle is connected with the sliding block, and the other end of the first buckle is suspended and tilted towards the rear part of the sliding block.

Further, the distance between the yielding holes is the same.

Further, the spacing of the abdicating groove is the same as that of the abdicating hole, so as to prevent the slide block from moving back.

Furthermore, the front end of the sliding block is provided with a top block; the top block is in a block shape, and the longitudinal section of the top block is in an I shape.

Furthermore, a third buckle is arranged at the rear end part of the push rod; the rear part of casket box inner wall is equipped with and withdraws from the draw-in groove, can with the third buckle cooperatees, the pulling casket box removes.

Further, the second buckle and the third buckle are the same in structure and are both thin sheet-shaped short plates, one end of each thin sheet-shaped short plate is connected with the push rod, and the other end of each thin sheet-shaped short plate is suspended and tilted towards the front and the rear of the push rod respectively; the second buckle and the third buckle are respectively arranged on two sides of the push rod.

Furthermore, the rear end of the push rod is provided with a limiting block which can abut against the rear end of the box to ensure that the push rod is inserted to a proper depth; the rear part of the limiting block is provided with a connecting hole which can be connected with an operating rod of the hemostatic forceps

The invention has the beneficial effects that:

the hemostatic clamp pushing device is reasonable in design, simple in structure and convenient to use, and can realize stable and controllable continuous pushing of the hemostatic clamp through the combination of the sliding block and the push rod and the action of the plurality of buckles, so that the shell clamping phenomenon is avoided, and the smooth operation is ensured.

Drawings

Fig. 1 is a perspective schematic view of the invention after assembly.

FIG. 2 is a schematic view of a half-section single-sided cassette.

Fig. 3 is a sectional view a-a in fig. 3.

Fig. 4 is an enlarged schematic view at I in fig. 4.

Fig. 5 is a sectional view B-B in fig. 3.

Fig. 6 is a schematic structural view of a slider.

Fig. 7 is a schematic structural view of the push rod.

Wherein, 1-hemostatic clip; 2-a cartridge; 3-a slide block; 4-a push rod; 21-convex arris; 22-a yield groove; 31-a top block; 32-a hole of abdication; 33-a first catch; 41-a second buckle; 42-a third buckle; 43-a limiting block; 44-connecting hole.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1-7.

An improved hemostatic clip magazine includes a magazine 2, a slide 3 and a push rod 4.

The box 2 is a rectangular box with a long strip shape, the length and the size of the box are matched with the inner cavity of the hemostatic clip applier, so that the box can be smoothly placed into or taken out of the inner cavity of the hemostatic clip applier. The casket box 2 is internally provided with an axially through cavity, the front end part of the casket box is matched with the structure of the hemostatic forceps, a plurality of hemostatic clips can be sequentially placed in the cavity, and then the hemostatic clips are sequentially moved out from the front end of the hemostatic forceps. The inner walls of the two sides of the box 2 are respectively provided with a convex edge 21. This protruding stupefied 21 is followed 2 axial central setings in the casket box make protruding stupefied 21 both sides form the recess respectively to adapt to hemostatic clamp 1's shape makes things convenient for hemostatic clamp's installation. The inner wall of one side of the rear half part of the box 2 is provided with a plurality of abdicating grooves 22, and the inner wall of the other side is provided with an withdrawing groove. The relief groove 22 and the exit groove are identical in shape, have wedge-shaped bottoms, and are inclined toward the rear of the cassette. The abdicating grooves are uniformly distributed, and the distance between the abdicating grooves is equal to the width of the hemostatic clamp. The exit slot is located at the rear of the cassette. The number of the avoiding grooves 22 can be a plurality, and the number of the avoiding grooves is equivalent to that of the mounted hemostatic clips. Six in this embodiment.

The sliding block 3 and the push rod 4 are both strip-shaped thin plates, have the same width and are adapted to the cavity of the box 2. The slider 3 and the pusher 4 are folded on each other and can be inserted into the case 2 and freely move inside the case 2. The front end of the sliding block 3 is provided with a top block 31. The top block 31 is in a block shape, the longitudinal section of the top block is in an I shape, and the top block can be matched with the cavity of the box 2 to better push the hemostatic clamp 1 to move. A plurality of abdicating holes 32 are arranged on the sliding block 3. The abdicating hole can be rectangular or in other shapes. The relief holes 32 may be provided in a number corresponding to the number of hemostatic clips installed in the cartridge. Six in this embodiment. The distance between the yielding holes 32 is the same, and the distance between the yielding holes is the same as that between the yielding grooves 22, so that the sliding block 3 can be prevented from moving back.

The rear end of the sliding block 3 is provided with a first buckle 33. The first buckle 33 is a thin sheet-like short plate, one end of which is connected with the sliding block 3, and the other end of which is suspended and forms a certain angle with the sliding block. The angle is 15-50 degrees, which can fully meet the clamping requirement. The first buckle 33 is tilted towards the rear part of the sliding block 3, and a notch is arranged on the sliding block corresponding to the first buckle, so that the first buckle generates elastic deformation when rotating along the connecting part and falls into the notch, and the influence on the movement of the first buckle in the box due to the increase of the thickness of the first buckle is avoided. Meanwhile, when the first buckle 33 passes through the receding groove 22, the first buckle can fall into the receding groove and be clamped with the receding groove to prevent the slider from moving to the rear part of the cassette.

The front end of the push rod 4 is provided with a second buckle 41. The second catch 41 has substantially the same structure as the first catch 33, and the main difference is that the second catch 41 is tilted forward of the push rod 4. The size of this second buckle 41 with hole 32 of stepping down suits, can push rod 4 is relative slider 3 antedisplacement to make this second buckle 41 pass through during the hole 32 of stepping down, fall into in this hole of stepping down, and with hole joint of stepping down, and then drive the messenger the slider moves forward.

The rear end of the push rod 4 is also provided with a third buckle 42. The third catch 42 has substantially the same structure as the second catch 41, mainly the difference is that the third catch 42 is tilted toward the rear of the push rod 4. The third latch 42 and the second latch 41 are respectively located on two sides of the push rod 4, and the third latch 42 and the withdrawing slot are located on the same side. When the push rod 4 is completely inserted into the box, the third buckle 42 is located at the front end of the withdrawing slot, and the distance between the third buckle and the withdrawing slot is greater than the distance between two adjacent receding slots.

The rear end of the push rod 4 is provided with a limit block 43. The stop 43 may abut against the rear end of the cassette 2 to ensure that the push rod 4 is inserted to the appropriate depth within the cassette. Meanwhile, a connecting hole 44 is formed in the rear of the limiting block 43, so that the push rod can be conveniently connected with an operating rod of the clip applier, and the pulling operation of the push rod is realized.

The using method of the invention comprises the following steps:

and overlapping the sliding block and the push rod to enable the front end of the push rod to abut against the rear end of the ejector block on the sliding block, and then inserting the sliding block and the push rod from the rear end of the box until the limiting block of the push rod abuts against the rear end of the box. And then, sequentially loading the six hemostatic clamps into the box from the front end of the box, and finishing the assembly.

During treatment, the box is arranged in the inner cavity of the hemostatic clip applier, and the operating rod of the clip applier is connected with the rear part of the push rod. When the first buckle moves, the operating rod is pulled, the push rod moves backwards for a distance which is slightly larger than the distance between two adjacent yielding holes, and the first buckle falls into the first yielding hole. Then, the push rod is pushed forwards to drive the slide block to move forwards, and then the foremost hemostatic clamp is ejected out of the box and enters the hemostatic clamp applier to prepare for clamping the hemostatic clamp onto the blood vessel subsequently. Repeating the above actions can sequentially eject the six hemostatic clips out of the box, continuously complete the clamping operation of the hemostatic clips, and avoid frequently drawing out the hemostatic clip applier. When the hemostatic clamp is completely ejected, the push rod can be slowly pulled first and then until the third fastener falls into the withdrawing slot, and the box is driven to move backwards until the box is completely pulled out from the hemostatic clamp.

The parts not involved in the present invention are the same as or can be implemented using the prior art.