CN211796698U

CN211796698U - Hemostatic clamp

Info

Publication number: CN211796698U
Application number: CN202020049866.2U
Authority: CN
Inventors: 何雄伟; 黄志刚
Original assignee: Zhuji Pengtian Medical Instrument Co ltd
Current assignee: Zhuji Pengtian Medical Instrument Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-30
Anticipated expiration: 2030-01-10

Abstract

The utility model provides a hemostatic clamp, which comprises a clamping head and a clamping head tube. The clamping head comprises a clamping part and a bending section; the clamping action of the clamping part can be realized by mutually matching the chuck tube and the bending section; one end of the chuck tube close to the clamping part is provided with a groove which is used for clamping the chuck.

Description

Hemostatic clamp

Technical Field

The utility model relates to the technical field of medical equipment, more specifically relates to a hemostatic clamp.

Background

The hemostatic clamp is a non-operative treatment hemostatic tool which is matched with the digestive tract for use, is arranged in the hemostatic clamp and clamps the wound by using mechanical clamping action so as to realize hemostasis. Compared with surgical treatment, the hemostatic bag has the characteristics of minimally invasive, rapid hemostasis, low probability of rebleeding and complications, has an exact curative effect, has a good hemostatic effect on acute digestive tract hemorrhage, and receives wide attention of the medical field.

When the clamping head and the clamping head tube of the existing hemostatic clamp rotate or move relatively, the clamping head is particularly easy to completely separate from the clamping head tube, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hemostatic clamp for overcoming at least one deficiency of the prior art.

In order to achieve the above object, the present invention provides a hemostatic clamp, which comprises a clamp head and a clamp head tube. The clamping head comprises a clamping part and a bending section; the clamping action of the clamping part can be realized by mutually matching the chuck tube and the bending section; one end of the chuck tube close to the clamping part is provided with a groove which is used for clamping the chuck.

Alternatively, the grooves are provided in pairs at one end of the chuck tube.

Optionally, the plurality of grooves has two pairs, each pair being equidistant from a central axis of the chuck tube, wherein each pair is arranged axially symmetrically.

Optionally, a groove wall of one side of one of the pair of grooves, which is far away from the other pair of grooves, is obliquely arranged, and the obliquely arranged groove wall and the groove bottom form an obtuse angle.

Optionally, the groove depth of the groove is 1 mm-5 mm.

Optionally, the groove width of the groove is larger than the thickness of the bending section.

Optionally, the groove comprises a sliding-in section and a clamping section, the chuck slides in the clamping section through the sliding-in section and then is clamped in the clamping section, the sliding-in section is obliquely arranged, and an included angle is formed between the sliding-in section and the clamping section.

Optionally, the shape of the groove in the axial section is any one of rectangle, trapezoid and combined pattern.

Optionally, the bending section is U-shaped and movably arranged in the chuck tube, a connecting part between the clamping part and the bending section is provided with an arc transition section, the part of the clamping part, which is close to the saw teeth, is bent inwards, and an inward convex attaching wing is arranged between the arc transition section and the bending part.

Optionally, one end of the bending section is provided with a fixture block, and the fixture block is matched with a hole at a corresponding position on the chuck tube.

In the practical use process, the chuck and the chuck pipe fall off together and then are left in the body, and the falling part is made of biological anticorrosive materials, such as titanium alloy, high polymer materials or composite materials. However, when the chuck is used, in order to enable the chuck and the chuck tube to fall off together, the chuck and the chuck tube need to be rotated or moved relatively, and the chuck can completely fall off from the chuck tube under the action of elastic force. And the one end of the chuck tube of the hemostatic clamp of the embodiment of the utility model is provided with a groove for clamping the chuck, thereby having a second line of defense for making the chuck clamped on the chuck tube.

Drawings

Fig. 1 is a schematic view of a hemostatic clip provided by an embodiment of the present invention;

fig. 2 is a schematic view of a chuck tube provided by an embodiment of the present invention;

fig. 3 is a schematic view of a hemostatic clip with a clip tube removed according to an embodiment of the present invention;

fig. 4 is a schematic view of the serrations of the chuck provided by an embodiment of the present invention;

fig. 5 is a first schematic view of a chuck provided in accordance with an embodiment of the present invention;

fig. 6 is a second schematic view of a chuck provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic view of an axial cross section of a groove provided by an embodiment of the present invention;

fig. 8 is another schematic view of an axial cross-section of a groove provided by an embodiment of the present invention.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Please refer to fig. 1 to 8. The utility model provides a hemostatic clamp, which comprises a clamp head 1 and a clamp head tube 41. The chuck 1 comprises a clamping part and a bending section; the clamping action of the clamping part can be realized by mutually matching the clamping head pipe 41 and the bending section; an end of the cartridge tube 41 adjacent to the grip portion has a recess 411, and the recess 411 is used to catch the cartridge 1.

In practice, the clamp 1 and the clamp tube 41 are dropped together and then left in the body, and the dropping part is made of a biological antiseptic material, such as titanium alloy, a polymer material or a composite material. However, in order to allow the collet 1 and the collet tube 41 to be removed together during use, the collet 1 and the collet tube 41 need to be rotated or moved relative to each other, and the collet 1 is completely removed from the collet tube 41 by the elastic force. And one end of the collet tube 41 of the hemostatic clamp of the embodiment of the present invention is provided with a groove 411 for clamping the collet 1, so that there is a second line of defense for making the collet 1 clamped on the collet tube 41.

In this embodiment, the slots 411 are provided in pairs at one end of the collet tube 41. The plurality of grooves 411 are provided in two pairs, each of the grooves 411 having the same shortest distance from the central axis of the chuck tube 41, wherein each pair of the grooves is arranged in axial symmetry. The groove wall of one side of one pair of grooves 4111, which is far away from the other pair of grooves 4112, is inclined, and the inclined groove wall and the groove bottom form an included angle a, which is an obtuse angle. Ensuring that the collet can be better captured in the recess 411.

In this embodiment, the depth of the groove 411 is 3mm, but in other embodiments, the groove body may be any other number such as 1mm, 5mm, 4mm, 2mm, etc. In this embodiment, the width of the groove 411 is larger than the thickness of the bending section.

In this embodiment, the groove 411 includes a sliding-in section and a clamping section, the clamping section is clamped after the chuck 1 slides in through the sliding-in section, the sliding-in section is inclined, and an included angle is formed between the sliding-in section and the clamping section. The arrangement of the sliding-in section can be better beneficial to the chuck to slide into the groove and finally be clamped with the clamping section, and moreover, because an included angle is formed between the sliding-in section and the clamping section, the chuck cannot slide out of the groove very easily.

In this embodiment, the shape of the axial section of the groove 411 is rectangular, and in other embodiments, the groove may be any one of trapezoidal (as shown in fig. 7) and in a combined pattern (as shown in fig. 8).

In this embodiment, the bending section 10 of this embodiment is U-shaped and movably locates in the chuck tube 41, the connecting portion between the clamping portion 11 and the bending section 10 has an arc transition section 12, the portion of the clamping portion 11 close to the saw teeth is bent inward, an inward protruding attaching wing 111 is arranged between the arc transition section and the bending portion, when the saw teeth are engaged, the attaching wings 111 can be attached to each other, thereby increasing the clamping area and increasing the hemostatic effect. The arc transition section is favorable for the transition connection of the bending section 10 and the clamping part 11, and the clamping part 11 can better rotate around the bending section 10 to be meshed with each other. The portion of the holding portion 11 near the saw teeth is bent inward for holding convenience.

Furthermore, one end of the bending section 10 has a latch 101, the latch 101 is matched with a hole 412 at a corresponding position on the collet tube 41, when the collet is ejected, the latch 101 moves to the hole 412 along the axial direction of the collet tube 41, and then the latch 101 sinks into the hole 412 to achieve the limiting function. The aperture 412 is a circular aperture. The height of the latch 101 gradually increases in the direction approaching the clamping portion, in this embodiment, the cross section of the latch 101 along the moving surface is a triangle, the shape can facilitate the latching of the latch 101, and the latch can be more easily disengaged during the reverse movement, and this structure constitutes a first line of defense for the chuck 1 to be clamped on the chuck tube 41.

The end of the chuck 1 has a serration with a serration angle of 120 degrees, but in other embodiments, the serration angle may be any angle greater than or equal to 90 degrees, such as 90 degrees, 100 degrees, 110 degrees, or 130 degrees. The two bent segments 10 and the clamping portion 11 excluding the saw teeth are symmetrically arranged, and the saw teeth are mutually matched. The two sawteeth of each chuck 1 of the embodiment are provided, one higher sawtooth 1101 and one lower sawtooth 1102 are arranged between the two sawteeth in a connecting way, and the connecting part forms a reverse sawtooth, the reverse sawtooth angle can be any angle larger than or equal to 90 degrees, such as 90 degrees, 100 degrees, 110 degrees, 120 degrees or 130 degrees, and the like, so that the arrangement can ensure that the displacement in the distribution direction of the sawteeth can not occur in the process of mutually meshing the chucks 1, the clamping area is increased, and the clamping effect is ensured. In other embodiments, the number of the saw teeth of each chuck 1 may be three or any number greater than or equal to three, and the upper saw teeth and the lower saw teeth are arranged in a staggered manner.

It will be understood by those skilled in the art that in the present disclosure, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms should not be construed as limiting the invention.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of other modifications and variations without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A hemostatic clip, comprising:

the clamping head comprises a clamping part and a bending section;

the clamping head pipe is matched with the bending section to realize the clamping action of the clamping part; one end of the chuck tube close to the clamping part is provided with a groove which is used for clamping the chuck.

2. The hemostatic clip according to claim 1, wherein the grooves are provided in pairs at the one end of the clip tube.

3. The hemostatic clip according to claim 1, wherein the clip portion has two, two pairs of the plurality of grooves, each groove having a shortest distance from the central axis of the clip tube that is equal, and wherein each pair of grooves is axially symmetric.

4. The hemostatic clip of claim 2, wherein the groove wall of one of the pair of grooves on a side thereof remote from the other of the pair of grooves is sloped, the sloped groove wall and the groove bottom being at an obtuse angle.

5. A haemostatic clip according to any of claims 1 to 4, wherein the groove depth of the groove is in the range 1mm to 5 mm.

6. A haemostatic clip according to any of claims 1 to 4, wherein the groove width of the groove is greater than the thickness of the bend.

7. The hemostatic clip according to claim 1, wherein the groove comprises a slide-in section and a clamping section, the clip is clamped into the clamping section after the clip slides in through the slide-in section, the slide-in section is disposed obliquely, and an included angle is formed between the slide-in section and the clamping section.

8. The hemostatic clip according to claim 1, wherein the groove has a shape in a cross section along the axial direction that is any one of rectangular, trapezoidal, and a combination thereof.

9. The hemostatic clip according to claim 1, wherein the bent section is U-shaped and movably disposed in the collet tube, and the connecting portion between the clamping portion and the bent section has an arc-shaped transition section, the clamping portion being bent inward at a portion thereof adjacent to the serrations, and an inwardly protruding engaging wing being disposed between the arc-shaped transition section and the bent portion.

10. The hemostatic clip of claim 1, wherein the bent section has a detent at one end, the detent cooperating with a correspondingly positioned hole in the tube.