CN213641057U - Toothed chuck and hemostatic clamp - Google Patents

Abstract

The application relates to the technical field of medical instruments and provides a toothed chuck and a hemostatic clamp, wherein the toothed hemostatic clamp comprises a toothed chuck, a control line, a clamp seat, a protective sleeve and a lateral clamp arm of the toothed chuck, an external operating part of the toothed chuck is arranged in the clamp seat, one end of the control line is connected with the operating part, the other end of the control line penetrates through the protective sleeve to be connected with the lateral clamp arm, the protective sleeve and the lateral clamp arm are separately connected, the toothed chuck comprises two mutually matched lateral clamp arms, and the two lateral clamp arms are both provided with lateral teeth; the side tooth includes crest and tooth valley, and the crest on two side arm lock sets up relatively, and the tooth valley on two side arm lock sets up relatively. In practical application process, through the relative crest that sets up on two side arm lock to and the relative tooth valley that sets up, after the side arm lock is closed, the crest that sets up relatively presss from both sides tight tissue, forms the clearance between the relative tooth valley that sets up, guarantees to be difficult for dying the tissue clamp, thereby provides the route for the vascular connection of organizing inside, avoids being pressed from both sides the tissue because of insufficient blood supply, causes the tissue necrosis.

Description

Toothed chuck and hemostatic clamp

Technical Field

The application relates to the technical field of medical equipment, in particular to a toothed chuck and a hemostatic clamp.

Background

The hemostatic clamp is a minimally invasive surgical instrument and is commonly used for hemostasis of wounds in a patient body, such as digestive tract hemostasis and the like. The tissue clamping device can be delivered to the operation position in the body of a patient through an endoscope channel, and clamping operation is carried out in vitro, so that hemostasis treatment is completed.

Fig. 1 is a schematic view of a hemostatic clamp of the prior art; the typical hemostatic clamp comprises a control line 1, a side clamping arm 2, a clamping seat 3, a protecting sleeve 4 and an external operating component 5, wherein the side clamping arm 2 is arranged in the clamping seat 3, one end of the control line 1 is connected with the operating component 5, the other end of the control line passes through the protecting sleeve 4 to be connected with the side clamping arm 2, and the protecting sleeve 4 is detachably connected with the clamping seat 3. In practical application, the side arm 2, the holder 3 and the protecting sleeve 4 are fed into the digestive tract of a patient through an endoscope channel, so that the side arm 2 and the holder 3 reach a preset operation position in the body of the patient, operation action is implemented through the operation part 5, the implemented operation action is transmitted to the side arm 2 through the control line 1, action response is generated in the side arm 2, and hemostasis or clamping operation is performed on the wound surface of the operation.

In order to ensure that the side arm 2 can clamp the tissue and prevent the side arm 2 from falling off accidentally, as shown in fig. 2, the structure of the hemostatic clamp in the prior art is schematically illustrated in a staggered arrangement of the clamping teeth. In the prior art, clamping teeth with staggered tooth peaks are arranged between two opposite side clamping arms 2, and the side clamping arms 2 can clamp tissues through the staggered clamping teeth.

However, in the practical use process of the hemostatic clamp, in a part of operations, the blood supply of the clamped tissue is required to be ensured to be normal, so as to avoid necrosis of the clamped tissue due to unavailable blood supply, and when the hemostatic clamp in the prior art clamps the tissue, the two side clamp arms 2 firmly clamp the tissue, so that the damaged tissue is tightly occluded together, and the blood vessel inside the clamped tissue cannot be communicated, thereby blocking the circulation of blood, so that an operator is required to ensure that the side clamp arms 2 can clamp the tissue, avoid the side clamp arms 2 from accidentally falling off, and ensure that the blood supply of the clamped tissue is normal, thereby increasing the difficulty of the operation and the failure rate of the operation.

SUMMERY OF THE UTILITY MODEL

The application provides a take tooth chuck and hemostatic clamp to solve prior art hemostatic clamp and when pressing from both sides tight tissue, lead to being pressed from both sides the inside blood vessel of tissue and just can't communicate, thereby block the problem of blood circulation.

The first aspect of the application provides a toothed chuck, which comprises two side clamping arms which are matched with each other, wherein side teeth are arranged on the two side clamping arms;

the side tooth includes crest and tooth valley, two the crest on the side arm lock sets up relatively, two the tooth valley on the side arm lock sets up relatively.

Optionally, after the two side clamping arms are closed, a distance t exists between the opposite tooth crests on the two side clamping arms.

Optionally, the distance t is greater than 0.4 mm.

Optionally, the distance t is less than 3.1 mm.

Optionally, the tooth peak spacing t oppositely arranged on the two side clamping arms is gradually increased from the proximal end to the distal end.

Optionally, the width of the valleys increases from the proximal end to the distal end.

Optionally, the width of the peaks increases from the proximal end to the distal end.

The toothed hemostatic clamp comprises the toothed clamp provided by the first aspect of the application, a control line, a clamp seat, a protective sleeve and an external operating component;

the side clamping arm with the tooth chuck is arranged in the clamping seat, one end of the control line is connected with the operating component, and the other end of the control line penetrates through the protective sleeve to be connected with the side clamping arm and is separately connected with the side clamping arm.

According to the technical scheme, the application provides a toothed chuck and a hemostatic clamp, the toothed hemostatic clamp comprises the toothed chuck, a control line, a clamp seat, a protective sleeve and an external operating component, wherein a side clamping arm of the toothed chuck is arranged in the clamp seat, one end of the control line is connected with the operating component, the other end of the control line penetrates through the protective sleeve to be connected with the side clamping arm, the protective sleeve is detachably connected with the side clamping arm, the toothed chuck comprises two mutually matched side clamping arms, and side teeth are arranged on the two side clamping arms; the side tooth includes crest and tooth valley, two the crest on the side arm lock sets up relatively, two the tooth valley on the side arm lock sets up relatively.

In practical application process, through the relative crest that sets up on two side arm lock to and the relative tooth valley that sets up after the side arm lock is closed, the relative crest that sets up presss from both sides tight tissue, forms the clearance between the relative tooth valley that sets up, guarantees to be difficult for dying the tissue clamp, thereby provides the route for the vascular connection of organizing inside, avoids being pressed from both sides the tissue and causes the tissue necrosis because of insufficient blood supply.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a prior art hemostatic clamp;

FIG. 2 is a schematic view of a prior art hemostatic clamp with staggered teeth;

FIG. 3 is a schematic view of the overall structure of a side clamping arm of a toothed hemostatic clamp according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a tooth peak spacing t provided in an embodiment of the present application;

FIG. 5 is a schematic view of a tooth crest and a tooth valley structure provided in the present application;

fig. 6 is a schematic structural view of a toothed hemostatic clamp according to an embodiment of the present disclosure.

Illustration of the drawings:

wherein, 1-control line, 2-side clamping arm, 21-side tooth, 211-tooth peak, 212-tooth valley, 3-clamping seat, 4-protecting sleeve and 5-operation component.

Detailed Description

In the technical solution provided by the present application, for convenience of description, one end of the hemostatic clip inserted into the human body is referred to as a distal end, and the distal end is mainly used for performing an operation on a tissue; the end outside the body is called the proximal end, which is mainly used for the operation of the operator. Unless otherwise stated, the term distal end of each member refers to the end near the inside of the body, and the term proximal end of each member refers to the end near the outside of the body.

In order to solve the problem that the blood vessels in the clamped tissue can not be communicated when the hemostatic clamp in the prior art clamps the tissue, thereby blocking the blood circulation. Referring to fig. 3, a schematic view of an overall structure of a side clamping arm of a toothed hemostatic clamp provided in an embodiment of the present application. The first aspect of the embodiment of the present application provides a toothed chuck, which includes two side clamping arms 2 that are matched with each other, and the two side clamping arms 2 are provided with side teeth 21; the side tooth 21 comprises a tooth peak 211 and a tooth valley 212, the tooth peaks 211 on the two side clamping arms 2 are oppositely arranged, and the tooth valleys 212 on the two side clamping arms 2 are oppositely arranged.

Through the relative crest 211 that sets up on two side arm lock 2 to and the relative tooth valley 212 that sets up after side arm lock 2 is closed, the relative crest 211 that sets up presss from both sides tight tissue, forms the clearance between the relative tooth valley 212 that sets up, guarantees that the chuck is difficult to die the tissue clamp to for organizing inside vascular connection provides the route, avoid because of being pressed from both sides tissue blood supply insufficiency, cause the necrosis of tissue.

Further, in some embodiments of the present application, after two side clamp arms 2 are closed, for example, in vitro, the two side clamp arms 2 are completely closed, and when there is no clamped tissue between the oppositely disposed teeth 211, there is a distance t between the oppositely disposed teeth 211 on the two side clamp arms 2. Thereby ensuring that the blood vessel is not completely blocked by the tissue clamped by the two teeth peaks 211 when the tissue is clamped.

Further, the distance t ranges from 0.4 mm to 3.1 mm.

Furthermore, because the clamped tissues in the clamping heads are unevenly distributed during the closing process of the clamping heads, the clamped tissues at the far ends of the clamping heads are more than those at the near ends of the clamping heads, so as to avoid the unstable clamping caused by the uneven distribution of the clamped tissues. Referring to fig. 4, a structural schematic diagram of a tooth peak distance t provided in the embodiment of the present application, in some embodiments of the present application, after two side clamp arms 2 are closed, a tooth peak 211 distance t oppositely disposed on the two side clamp arms 2 gradually increases from a proximal end to a distal end. Through the relative setting of the interval t of the tooth crest 211, the tooth crest is set to be of a structure gradually increasing from the near end to the far end, after the clamping head clamps clamped tissues, the far end of the clamping head can clamp more tissues, the situation that partial areas of the side clamping arms 2 are clamped by the tissues is avoided, and the clamping state of the whole clamping head is ensured to be more stable.

Further, referring to fig. 5, a schematic diagram of a tooth crest and a tooth valley structure provided for an embodiment of the present application, in some embodiments of the present application, a width of the tooth valley 212 gradually increases from a proximal end to a distal end, and by designing a width of the distal tooth valley 212 to be larger, it is ensured that after the side clamp arms 2 are closed, a larger space is provided at a distal end of the collet for clamping tissue, and it is further ensured that the collet is not prone to clamp tissue, thereby providing a passage for vascular connection inside the tissue.

Further, since the volume of the clamped tissue at the distal end of the clamping head is larger, the force of the clamped tissue on the side teeth 21 is relatively larger, and in order to ensure that the side clamping arms 2 can stably clamp the tissue, the side teeth 21 are not deformed due to the larger force of the clamped tissue, as shown in fig. 5, in some embodiments of the present application, the width of the tooth crest 211 gradually increases from the proximal end to the distal end. Through the crest 211 that the width is crescent, guarantee side tooth 21 can bear the effort of being pressed from both sides the tissue, simultaneously, from the near-end to the width of distal end crescent crest 211, guarantee that the valley 212 is in structural design, also can realize the width size design of distal end valley 212 bigger, and under the prerequisite of guaranteeing the design requirement, reduce the quality of side tooth 21 as far as to avoid taking the whole quality of tooth chuck great.

Referring to fig. 6, a schematic structural view of a toothed hemostatic clamp provided in an embodiment of the present application, a second aspect of an embodiment of the present application provides a toothed hemostatic clamp, which includes the toothed clamping head provided in the first aspect of an embodiment of the present application, and further includes a control wire 1, a clamping base 3, a sheath tube 4, and an external operating member 5; the side arm lock 2 of taking tooth chuck sets up in holder 3, and control line 1 one end is connected operating means 5, and the other end passes protective sheath 4 and connects side arm lock 2, with side arm lock 2 separable connection.

According to the technical scheme, the toothed collet and the hemostatic clamp provided by the embodiment of the application comprise the toothed collet, a control wire 1, a clamping seat 3, a protective sleeve 4 and an external operating component 5, wherein the side clamping arm 2 of the toothed collet is arranged in the clamping seat 3, one end of the control wire 1 is connected with the operating component 5, the other end of the control wire passes through the protective sleeve 4 and is connected with the side clamping arm 2, the protective sleeve 4 is detachably connected with the side clamping arm 2, the toothed collet comprises two side clamping arms 2 which are matched with each other, and the two side clamping arms 2 are respectively provided with side teeth 21; the side tooth 21 comprises a tooth peak 211 and a tooth valley 212, the tooth peaks 211 on the two side clamping arms 2 are oppositely arranged, and the tooth valleys 212 on the two side clamping arms 2 are oppositely arranged.

In the practical application process, through the relative set up prong 211 on two side arm lock 2 to and the relative set up tooth valley 212, after side arm lock 2 closes, the relative set up prong 211 presss from both sides tight tissue, forms the clearance between the relative set up tooth valley 212, guarantees to be difficult for dying the tissue clamp to for the blood vessel connection of tissue inside provides the route, avoid being pressed from both sides the tissue and cause the tissue necrosis because of insufficient blood supply.

The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims (8)

1. The toothed chuck is characterized by comprising two side clamping arms (2) which are matched with each other, wherein the two side clamping arms (2) are respectively provided with a side tooth (21);

the side tooth (21) comprises a tooth peak (211) and a tooth valley (212), the tooth peak (211) on the two side clamping arms (2) are arranged oppositely, and the tooth valley (212) on the two side clamping arms (2) are arranged oppositely.

2. A toothed clamp according to claim 1, characterized in that, after the two side arms (2) have been closed, there is a spacing t between oppositely disposed tooth crests (211) on the two side arms (2).

3. A toothed collet according to claim 2 wherein the pitch t is greater than 0.4 mm.

4. A toothed collet according to claim 2 wherein the pitch t is less than 3.1 mm.

5. A toothed clip according to claim 2, characterized in that the pitch t of the oppositely disposed peaks (211) of the two side arms (2) increases from the proximal end to the distal end.

6. The toothed collet of claim 1, wherein the valleys (212) increase in width from the proximal end to the distal end.

7. The toothed collet of claim 1, wherein the width of the peaks (211) increases from the proximal end to the distal end.

8. A toothed hemostatic clamp, characterized by comprising a toothed collet according to any one of claims 1 to 5, further comprising a control wire (1), a clamp holder (3), a protective sleeve (4) and an extracorporeal operating member (5);

the side arm lock (2) of taking tooth chuck sets up in holder (3), and operating means (5) are connected to control line (1) one end, and the other end passes protective sheath pipe (4) and connects side arm lock (2), with side arm lock (2) separable connection.

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