CN107072669B

CN107072669B - Hemostatic clamp capable of cleaning bleeding point and oozing blood

Info

Publication number: CN107072669B
Application number: CN201580050115.4A
Authority: CN
Inventors: 时百明
Original assignee: Hangzhou Anjisi Medical Science And Technology Co ltd
Current assignee: Hangzhou Anjisi Medical Science And Technology Co ltd
Priority date: 2015-10-10
Filing date: 2015-10-10
Publication date: 2021-04-30
Anticipated expiration: 2035-10-10
Also published as: CN107072669A; WO2017059598A1

Abstract

A hemostatic clamp capable of cleaning bleeding at a bleeding point comprises a clamp (1), a conveying part (2), a control part (5) and a bleeding cleaning part; the clamp (1) comprises a pair of clamping pieces (11) and a tightening pipe (12) for gathering the clamping pieces (11); the conveying part (2) comprises a mandrel (21) and a flexible pipe (22), the mandrel (21) penetrates through the flexible pipe (22), the front end of the flexible pipe (22) is connected with the rear end of the tightening pipe (12), and the front end of the mandrel (21) is connected with the rear end of the clamping piece (11); the control part (5) is connected with the flexible pipe (22) and the rear end of the mandrel (21), the blood seepage regulating part comprises an injection port (41), a medium channel communicated with the injection port (41) and an outlet, the injection port (41) is positioned on the conveying part (2), and the outlet is arranged at the front end of the medium channel.

Description

Hemostatic clamp capable of cleaning bleeding point and oozing blood

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a hemostatic clamp which can be used for treating a wound surface by media such as transportable liquid and the like and can be used for cleaning oozing blood at a bleeding point.

Background

Bleeding of the stomach and intestinal tract of a living being is usually caused by various diseases or accidental injuries or injuries after endoscopic treatment, and active bleeding is generally treated by medicine spraying or by methods such as high-frequency electricity, laser, argon burning hemostasis, hemostasis by mechanical compression of hemostatic clips and the like. The mechanical compression hemostasis of the hemostatic clamp has a reliable curative effect on the active hemorrhage caused by the non-varicose vein and is approved by doctors and patients; the hemostatic clamp also has a certain effect on the mucosa injury of the digestive tract, and the wound healing can be promoted by clamping the mucosa injury opening by adopting the hemostatic clamp, so that the open surgery is avoided. However, if a hemostatic clamp is used for hemostasis at present, only a bleeding point which can be clearly observed under an endoscope can be clamped and compressed for hemostasis, the hemostatic clamp cannot be used for hemostasis for a bleeding part which is not quite clear, if the hemostatic clamp is used for hemostasis, only physiological saline can be injected into a forceps channel of an endoscope to wash a suspected bleeding part so as to see the bleeding point clearly and remember the direction approximately, and the hemostatic clamp is rapidly inserted from the forceps channel.

The hemostatic clamp disclosed in china 200980123274 can be controlled by a handle to open and close the clamp repeatedly, the slender part of the clamp connected with the conveyor is in a spiral spring tube structure, and a polymer sheath tube is arranged outside the spiral spring tube and is not provided with an injection port, so that the medium cannot be injected to wash the focus.

In the ligation device of Japanese patent laid-open No. 2004-121485, it is only noted that the clip has a pair of arms that expand when subjected to a force. Further, this ligation apparatus clamps the living tissue by fitting a pressing tube to the clip to close the pair of arms and holds the living tissue, and ligates the living tissue by holding the pair of arms in a closed state by the pressing tube.

Disclosure of Invention

In view of the fact that the existing hemostatic clamp product has no function of exposing a bleeding point, the invention aims to provide a hemostatic clamp which can wash the surface of a focus to clarify the bleeding point and then clamp the bleeding point quickly after the hemostatic clamp is inserted into a clamping channel so as to accurately perform a hemostatic operation on the bleeding point.

In order to achieve the purpose, the invention adopts the following technical scheme.

The invention provides a hemostatic clamp capable of cleaning bleeding at a bleeding point, which is characterized by comprising: a clip, a conveying part, a control part, and a blood infiltration regulating part;

the clamp comprises a pair of clamping pieces and a tightening pipe for gathering the clamping pieces;

the conveying part comprises a mandrel and a flexible pipe, the mandrel penetrates through the flexible pipe, the front end of the flexible pipe is connected with the rear end of the tightening pipe, and the front end of the mandrel is connected with the rear end of the clamping piece;

the control part is connected with the flexible pipe and the rear end of the mandrel;

the blood seepage regulating part comprises an injection port, a medium channel communicated with the injection port and an outlet, the injection port is positioned on the conveying part, and the outlet is arranged at the front end of the medium channel.

Optionally, the conveying part further includes a transition pipe connecting the rear end of the flexible pipe and the front end of the control part, and a sheath pipe sleeved on part of the rear end of the flexible pipe and outside the transition pipe for passing through part of the rear end of the flexible pipe and the transition pipe.

Further, the injection port is located on the sheath, and a gap between the inner side wall of the sheath and the outer side wall of the transition pipe forms the medium channel.

Optionally, the transition pipe is provided with a through hole part, and when the medium is injected from the injection port, the medium enters between the transition pipe and the mandrel through the medium channel and the through hole part.

Optionally, the conveying part is further provided with a conveying pipe, and the conveying pipe is sleeved outside the clamp and the flexible pipe so that the clamp and the flexible pipe penetrate through the conveying pipe.

Further, the injection port is located on the conveying pipe, and the medium channel is formed between the inner wall of the conveying pipe and the outer wall of the flexible pipe.

Optionally, the delivery part further comprises a delivery pipe, the injection port is located on the delivery pipe, the delivery pipe is located outside the flexible pipe, the delivery pipe is at least partially connected with the flexible pipe, and the delivery pipe itself serves as the medium channel.

Optionally, the flexible tube comprises an insulating layer and a spring tube arranged in sequence from inside to outside.

By adopting the technical scheme of the invention, the defect that the existing hemostatic clamp is not easy to accurately clamp the diffuse bleeding focus can be overcome, the focus can be effectively washed to clarify the bleeding point after the clamp is inserted into an endoscope instrument channel, so that the bleeding point can be accurately and effectively clamped, the great pain of a patient caused by large-area clamping of the clamp due to unclear bleeding point can be avoided, and the economic pressure of the patient caused by the prolongation of the operation time and the excessive use of the clamp can be avoided.

Drawings

FIG. 1 is a sectional view showing an opening structure of a clip according to example 1;

FIG. 2 is a sectional view of a spray structure of the clip of example 1;

FIG. 3 is a schematic view of the connection assembly of the clip;

FIG. 4 is a schematic structural view of a clip according to embodiment 2;

FIG. 5 is a cross-sectional view showing the positional relationship of the flexible tube with the delivery tube and the mandrel in example 2;

FIG. 6 is a schematic configuration diagram of a modification of the clip according to embodiment 2;

FIG. 7 is a schematic structural view of a clip according to embodiment 3;

FIG. 8 is a cross-sectional view of one positional relationship of the flexible tube with the delivery tube and mandrel of example 3;

FIG. 9 is a cross-sectional view of another positional relationship of the flexible tube with the delivery tube and mandrel of example 3.

Detailed Description

Preferred embodiments of the ligation device according to the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

Referring to fig. 1, the hemostatic clamp capable of clearing oozing blood at a bleeding point of the present invention includes a clamp 1, a delivery unit 2, a oozing blood clearing unit, and a control unit 5.

The clip 1 includes a pair of jaws 11 and a tightening tube 12 for compressing the jaws. The clamping piece 11 can clamp and close the organism tissue and can be made of elastic metal materials or high polymer materials with certain hardness and strength; the cinch tube 12 compresses the clip tail and eventually forces the clip to close completely to grasp the tissue. The assembly of the clip 11 and the tightening tube 12 can be performed by conventional methods in the existing hemostatic clamp, as long as the function of compressing the clip by the tightening tube 12 can be realized, such as: the clamping piece can be set to be of a structure with a thin rear end arm part and a thick distal end arm part, so that a stopping part can be formed at the joint of the clamping piece 11 and the tightening pipe 12, and the stopping part can be propped against the rear end of the tightening pipe after the clamping piece 11 is stored to a certain position. Side lugs may be provided at the rear end of clip 11, and an engaging hole may be provided on the inner wall of tightening pipe 12, so that the side lugs can engage with the engaging hole to prevent clip 11 from falling off tightening pipe 12 when clip 11 is released. In addition, the front end of the tightening pipe 12 can be provided with a closing hole for closing the clip 11, and the front end is also provided with a blocking piece which traverses the closing hole and can separate the clips; and simultaneously prevents the clamping piece from falling out of the orifice of the furling hole.

The conveying part 2 comprises a mandrel 21 and a flexible pipe 22, the mandrel 21 penetrates through the flexible pipe 22, the front end of the flexible pipe 22 is connected with the rear end of the tightening pipe 12, and the front end of the mandrel 21 is connected with the rear end of the clamping piece 11; the control part 5 is connected with the flexible tube 22 and the rear end of the mandrel 21, the blood seepage cleaning part comprises an injection port 41, a medium channel communicated with the injection port 41 and an outlet, the injection port 41 is positioned on the conveying part 2, and the outlet is arranged at the front end of the medium channel. The mandrel 21 can contain a conduit, and the mandrel and the conduit are in a seamless connection structure.

It should be noted that the rear end of the cinch tube 12 and the front end of the flexible tube 22 may be connected by the connection assembly 3; the connecting assembly can be damaged under a certain tensile force to separate the tightening pipe from the flexible pipe; in the present invention, the connecting assembly may have a plurality of implementation manners, as long as it is a structure that can be deformed and damaged under a certain tensile force. In the following, an implementation of the connection assembly is exemplified.

As shown in fig. 3, the connection assembly 3 includes a fixed member 31 connected to the flexible tube 22, a rotating shaft 33 having a rear end portion sleeved in the fixed member 31, and a sleeve 32, wherein the sleeve 32 is connected to the rear end of the tightening tube, a step 322 is provided at the rear end of the inner side of the sleeve 32, a protrusion is provided at the front end of the outer side of the rotating shaft 33, and the step 322 is disposed between the protrusion and the fixed member 31 in a clearance fit manner.

Note that, the joint between the front end of the mandrel 21 and the rear end of the clip 11 forms a breakable or deformable structure; preferably, the front end of the mandrel is provided with a pulling head 211, the mandrel can be connected with a clamping piece through the pulling head 211, and the connecting position of the pulling head and the clamping piece is a structure capable of being damaged or deformed, so that the pulling head can be damaged under certain tension to be separated from the clamping piece. For example, the pulling head and the clip may be connected by a breakable sheath or clip, and the structure is broken by the pulling of the mandrel to separate the pulling head from the clip.

Further, the conveying part 2 further comprises a transition pipe 23 connecting the rear end of the flexible pipe 22 and the front end of the control part 5, and a sheath pipe 24 sleeved on part of the rear end of the flexible pipe 22 and the outside of the transition pipe 23 for penetrating part of the rear end of the flexible pipe 22 and the transition pipe 23.

In the present embodiment, the injection port 41 is located on the sheath 24, and a gap between the inner sidewall of the sheath 24 and the outer sidewall of the transition pipe 23 forms a medium passage. The transition pipe 23 is provided with a through hole portion 231 so that when the injection port 41 is injected with the medium, the medium enters between the inner side wall of the transition pipe 23 and the outer side wall of the mandrel 21 through the medium passage and the through hole portion 231. The outlet is arranged at the front end of the tightening pipe.

Preferably, the interior of the flexible tube 22 includes an isolation layer 221 and a spring tube 222 which are sequentially arranged from inside to outside, the rear end of the flexible tube 22 is connected with the fixing member 25 and inserted into the inner hole of the sheath tube 24, a blocking cap 241 is installed in the inner hole at the front end of the sheath tube to block the fixing member 25 from being released from the flexible tube 22, a sealing member 251 is arranged between the fixing member 25 and the blocking cap 241 to be sleeved outside the isolation layer of the flexible tube, and a sealing member 252 is arranged at the rear end of the transition tube 23, so that a sealing structure can be formed with the inner hole of the sheath tube, and when a wound needs to be cleaned by injecting a medium such as liquid into the hemostatic clip, the medium can be prevented from being.

When a medium needs to be injected, liquid and the like can be injected from an injection opening through the syringe, the liquid immediately enters the medium channel and enters the gap between the transition pipe 23 and the mandrel 21 through the through hole 231, then flows into the gap between the mandrel 21 and the inner hole of the flexible pipe 22, when the liquid flows out from the outlet at the front end of the tightening pipe to reach the position of the clamp, the liquid continues to flow along the clamp under the action of the pressure at the rear end until the liquid is sprayed out, the liquid continues to flow along the two clamping pieces respectively due to the shape of the clamping pieces and has a certain guiding function, when the clamping pieces are in the edge closing state shown in fig. 2, the two liquid flows are converged into a new larger liquid flow, and a certain distance (which depends on the pressure of the medium) is sprayed and cleaned by the liquid flow, so that the aim of defining a bleeding point is achieved.

Further, as shown in fig. 1, the control portion 5 of the present invention includes a main body 51, an operating rod 52 penetrating through the main body 51, a sliding handle 53 connected to the operating rod 52, and an operating handle 54 fixed to the rear end of the main body 51, wherein the sliding handle 53 is slidably fitted to the main body 51 in the front-rear direction, the rear end of the flexible tube 22 is fixedly connected to the front end of the main body 51, and the rear end of the stem 21 is connected to the front end of the operating rod 52. The sliding handle 53 moves the operating rod 52 back and forth to move the mandrel 21 along the flexible tube 22.

When needing to press from both sides the closure hemostasis to the focus of bleeding in the operation, can utilize the control part to drive the transport part and insert and reach the focus through endoscope apparatus channel with the hemostatic clamp, take out normal saline in the syringe and be connected with the filling opening and inject normal saline and wash the focus, when the point of bleeding has been clear and definite and the angle and the position of clip are suitable, pulling sliding handle 53 drives dabber 21 and clamping piece and carries out effectual centre gripping and oppression to the tissue of focus department, when the point of bleeding is cliied to the clip accuracy, pull sliding handle to the rear end and drive the dabber to remove to the rear end and make dabber and clip break away from, and tighten up pipe and flexible tube also break away from, thereby final clip successfully releases and lasts to oppress the tissue and reach hemostatic purpose. If the time for adjusting the clamp to align the bleeding point is too long, the bleeding point is not clear, the focus can be washed again until the angle and position requirements of the clamp are met, and then the clamping is carried out, so that the bleeding point at the focus position before clamping is applied can be ensured to be clear, the bleeding point can be clamped most effectively, and the blind clamping under the condition that the bleeding point is not clear is avoided.

Example 2

Referring to fig. 4 and 5, the hemostatic clamp of embodiment 2 is improved on the basis of embodiment 1, and the delivery part 2 is further provided with a delivery pipe 26, and the delivery pipe 26 is sleeved outside the clamp 1 and the flexible pipe 22 so that the clamp 1 and the flexible pipe 22 penetrate through the delivery pipe 26. In this embodiment, the injection port 41 is located at the rear end of the delivery tube 26, the media passage is formed between the inner wall of the delivery tube 26 and the outer wall of the flexible tube 22, and the outlet is located at the front end of the inner wall of the delivery tube 26.

The rear end of the delivery tube 26 is provided with a seal 261 to seal the delivery tube 26 and the insulation layer 221 outside the flexible tube 22 and prevent a medium such as liquid from splashing toward the handle end. The sealing element is made of elastic materials such as silica gel or rubber TPU, the inner hole of the sealing element is approximately step-shaped and can be tightly matched and sealed with the outer diameter of the conveying pipe, and the small hole of the sealing element is sealed with the outer side isolation layer 221 of the flexible pipe.

As shown in fig. 6, optionally, a blocking member 262 may be disposed between the rear end of the delivery tube and the sealing member 261, and the blocking member 262 may be provided with an aperture structure having the flexible tube 22 extending therethrough, which may further block the ejection of media such as liquid toward the handle end.

When the bleeding part needs to be cleaned, firstly, a needed medium such as physiological saline is pumped into the injector, the medium is connected with the injection port and injected, the medium flows along a gap formed by the conveying pipe 26, the flexible pipe 22 and the clamp 1 and is sprayed out from the front end outlet of the conveying pipe 26 under the action of continuous pressure, the sprayed medium can carry out necessary washing on the focus, after the washing is finished, the conveying pipe 26 is pulled towards the rear end or the flexible pipe 22 is pushed towards the front end, so that the clamp is exposed out of the end part of the conveying pipe 26, the handle can be controlled to open the clamp, meanwhile, the angle and the position are adjusted to be aligned with the bleeding point of the focus for clamping, if the bleeding point is too long to be seen, the clamp 1 can be exposed out of the end part of the conveying pipe 26 again, and the bleeding part is cleaned again.

Example 3

The hemostatic clamp of embodiment 3 is improved from that of embodiment 1, and as shown in fig. 7, the delivery part 2 further includes a delivery tube 26 ', the injection port 41 is located on the delivery tube 26 ', and the delivery tube 26 ' is located outside the flexible tube 22.

The delivery tube 26' may be provided as a separate hollow channel, which itself serves as a medium channel for transporting media such as fluids, and may also be used to introduce guiding instruments for guiding the hemostatic clamp into more difficult-to-reach lesion sites or into narrower body cavities for performing hemostatic procedures. The delivery tube 26' is attached to the insulating layer of the flexible tube 22, which may be a unitary structure or attached together by bonding, welding, or the like. The injection port 41 is communicated with the delivery pipe 26' of the single cavity channel, when the injection port is connected with a syringe of medium such as physiological saline and the like, the medium is injected through the syringe, and the medium is ejected from an outlet positioned near the clamp (the front end of the delivery pipe) under the continuous pressure action along the medium channel and continuously flows along the clamp, thereby reaching the focus position and flushing the focus position to determine the bleeding point. When the bleeding point of the focus is clear, the angle and the position of the clamp 1 are adjusted by the control part 5, thereby effectively clamping the bleeding point of the focus.

Referring to FIG. 8, delivery tube 26' may also be placed in contact with the outside of flexible tube 22; or as shown in fig. 9, such that a portion of the delivery tube 26 'is connected to the flexible tube 22, such as by other means that connect the delivery tube 26' and flexible tube 22 together at the end of the clip 1, with the sprayed media being substantially parallel to the clip to control the direction and location of the media to the lesion.

By adopting the technical scheme of the invention, the defect that the existing hemostatic clamp is not easy to accurately clamp the diffuse bleeding focus can be overcome, the focus can be effectively washed after the clamp is inserted into an endoscope instrument channel so as to define the bleeding point, the bleeding point can be accurately and effectively clamped, great pain of a patient caused by large-area wound clamping due to undefined bleeding point can be avoided, and the economic pressure of the patient caused by prolonging the operation time and excessively using the clamp can be avoided.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.

Claims

1. A hemostatic clamp capable of cleaning bleeding spots and oozing blood, which is characterized by comprising: a clip (1), a conveying part (2), a control part (5), and a blood infiltration regulating part; the clamp (1) comprises a pair of clamping pieces (11) and a tightening pipe (12) for gathering the clamping pieces; the conveying part (2) comprises a mandrel (21) and a flexible pipe (22), the mandrel (21) penetrates through the flexible pipe (22), the front end of the flexible pipe (22) is connected with the rear end of the tightening pipe (12), and the front end of the mandrel (21) is connected with the rear end of the clamping piece (11); the control part (5) is connected with the flexible pipe (22) and the rear end of the mandrel (21);

the serum seepage regulating part comprises an injection port (41), a medium channel communicated with the injection port (41) and an outlet, the injection port (41) is positioned on the conveying part (2), and the outlet is arranged at the front end of the medium channel; the rear end of the tightening pipe (12) is connected with the front end of the flexible pipe (22) through a connecting assembly (3), and the connecting assembly (3) can be broken under certain tension to separate the tightening pipe (12) from the flexible pipe (22);

the conveying part (2) further comprises a transition pipe (23) which is connected with the rear end of the flexible pipe (22) and the front end of the control part (5), the transition pipe (23) is provided with a through hole part (231), the rear end of the transition pipe (23) is provided with a sealing element (252), and a sealing structure is formed by the sealing element and an inner hole of the sheath pipe (24);

the conveying part (2) further comprises a sheath pipe (24) which is sleeved on the rear end of the flexible pipe (22) and the outside of the transition pipe (23) and is used for the penetration of the rear end of the flexible pipe (22) and the transition pipe (23);

the flexible pipe (22) comprises an isolation layer (221) and a spring pipe (222) which are arranged from inside to outside in sequence;

the rear end of the flexible pipe (22) is connected with a fixed piece (25) and inserted into an inner hole of the sheath pipe (24), a blocking cap (241) is arranged in the inner hole of the front end of the sheath pipe to block the fixed piece (25) from being separated from the flexible pipe (22), and a sealing piece (251) is arranged between the fixed piece (25) and the blocking cap (241) to be sleeved on the outer side of the isolation layer (221) of the flexible pipe (22).

2. The hemostatic clamp capable of clearing oozed blood at a bleeding point according to claim 1, wherein the injection port (41) is located on the sheath (24), and a gap between an inner side wall of the sheath (24) and an outer side wall of the transition tube (23) forms the medium channel.

3. The hemostatic clamp capable of clearing oozed blood at a bleeding point according to claim 1 or 2, wherein the transition tube (23) is provided with a through hole part (231), and when a medium is injected from the injection port (41), the medium enters between the transition tube (23) and the mandrel (21) through the medium channel and the through hole part (231).

4. The hemostatic clamp capable of clearing oozing blood at a bleeding point according to claim 1, wherein the delivery part (2) is further provided with a delivery pipe (26), and the delivery pipe (26) is sleeved outside the clamp (1) and the flexible pipe (22) so that the clamp (1) and the flexible pipe (22) penetrate through the delivery pipe.

5. The hemostatic clamp capable of clearing oozed blood at a bleeding point according to claim 4, wherein the injection port (41) is located on the delivery tube (26), and the medium passage is formed between the inner wall of the delivery tube (26) and the outer wall of the flexible tube (22).

6. The hemostatic clamp capable of clearing oozed blood at a bleeding point according to claim 1, wherein the delivery part (2) further comprises a delivery tube (26), the injection port (41) is located on the delivery tube (26), the delivery tube (26) is located outside the flexible tube (22), the delivery tube (26) is at least partially connected with the flexible tube (22), and the delivery tube (26) itself serves as the medium passage.