A vascular clamp

Abstract

The present invention provides a vascular clamp comprising a clamp body, the clamp body including a main force storage plate, the main force storage plate being in an arcuate shape, one end of the main force storage plate being connected to an elastic plate extending upward from the bow opening to the other end of the main force storage plate, the elastic plate being in an arcuate shape with the bow opening facing the main force storage plate, the elastic plate being provided with a support portion relative to the end connected to the main force storage plate, the main force storage plate being provided with a notch relative to the end connected to the elastic plate, the notch facing the end of the main force storage plate connected to the elastic plate; and control ears for adapting to surgical forceps and thereby squeezing the main force storage plate and the elastic plate at mid-section on a side of the main force storage plate facing away from the elastic plate. The present invention has the advantages of good clamping effect, minimal damage to blood vessels, and can effectively prevent blood vessels from slipping or deviating during clamping.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a vascular clamp. Background Art

[0002] There are many types of vascular clamps. Disposable vascular clamps (ligation vascular clamps) are fastened with surgical forceps during use. They have a unique design that prevents nails from falling off, and an arc "V" open structure that wraps around the tissue to clamp. When the locking buckle is clamped, the operator can sense the clamping state. However, there is a "V"-shaped cut angle when clamping, which can easily cause the blood vessel to slide out of the clamping mouth. In order to increase friction, this type of vascular clamp often has a serrated anti-slip strip on the clamping surface. However, this will cause the vascular clamp to slide against the blood vessel before clamping or squeeze and damage the blood vessel after clamping. At the same time, because it is made of plastic, its clamping force is difficult to effectively control, and there is a certain risk of damaging the blood vessel and causing bleeding. Summary of the Invention

[0003] In view of the above problems, the present invention aims to provide a vascular clamp that has good clamping effect, causes little damage to blood vessels, and can effectively prevent blood vessels from slipping and deviating during the clamping process.

[0004] In view of the above problems, the following technical solutions are provided: a vascular clamp, comprising a clamp body, wherein the clamp body comprises a main force storage piece, wherein the main force storage piece is in an arch shape and the thickness of the middle position thereof is thicker than that of the two ends, one end of the main force storage piece is connected to an elastic piece extending upward from the arch mouth thereof to the other end of the main force storage piece, the elastic piece is in an arch shape and the arch mouth faces the main force storage piece, the elastic piece is provided with a support portion relative to the end connected to the main force storage piece, the main force storage piece is provided with a notch relative to the end connected to the elastic piece, the notch faces the end of the main force storage piece connected to the elastic piece, and the blood vessel is placed on the main force storage piece. The support portion is squeezed at one end of the elastic sheet in the arch mouth so that the support portion falls into the slot and is fixed by the support force in the length direction of the elastic sheet; the side of the main force storage sheet facing away from the elastic sheet and the middle position of the side of the elastic sheet facing away from the main force storage sheet are both provided with control ears for adapting to surgical forceps, thereby squeezing the main force storage sheet and the elastic sheet, so that the two are brought closer together, causing the elastic sheet to change from an arc to a straight line, increasing the length of its two ends, and after the main force storage sheet arch mouth is stretched open and passes the straight line dead point position, the main force storage sheet arch mouth retracts and pushes the two ends of the elastic sheet to make the elastic sheet bend in the opposite direction to clamp the blood vessel.

[0005] In the above structure, the opening of the main force storage plate arch is controlled by pushing the arc-shaped elastic sheet. After the elastic sheet passes the linear dead point, the reverse contraction of the main force storage plate arch is used to push the two ends of the elastic sheet, so that the elastic sheet is bent in the opposite direction toward the inside of the main force storage plate arch to achieve the squeezing and clamping of the blood vessel. Since the elastic sheet is squeezed at both ends by the main force storage plate arch to bend and flatten the blood vessel, its elasticity can be adaptively adjusted according to the thickness and thickness of the blood vessel wall. At the same time, since the blood vessel is located at the main force storage plate arch when squeezing the blood vessel, The bottom can play a good centering role, avoiding the blood vessel from sliding and deviating when clamping, and solving the problem that the blood vessel is easy to slip when clamping with the existing blood vessel clamp, and the blood vessel is easy to be damaged due to excessive rigidity; when separating, it is only necessary to pull the two control ears away from each other to straighten the elastic sheet and push open the arch of the main force storage sheet. After the elastic sheet crosses the straight line dead point in the opposite direction, the arch of the main force storage sheet is retracted, and the elastic sheet is further pulled by the control ear to separate the support part from the slot to form an open loop, which is convenient for removing the clamp from the blood vessel.

[0006] The present invention is further configured such that the overall thickness of the main force storage plate is thicker than that of the elastic plate, and the elastic plate is softer than the main force storage plate.

[0007] In the above structure, the main force storage piece can maintain support and elastic effects, which is conducive to controlling the bending of the elastic piece.

[0008] The present invention is further configured such that, when the support portion of the elastic sheet is not buckled in, the notch is provided with a guiding slope on one side thereof facing the support portion and the connection between the main force storage sheet and the elastic sheet.

[0009] In the above structure, the guiding slope is used to guide the supporting part to slide into the slot.

[0010] The present invention is further configured such that a main silicone strip is provided on one side of the main force storage piece facing the elastic piece and arranged along the length direction of the main force storage piece.

[0011] In the above structure, the main silicone strip is used to contact the blood vessel when clamping the blood vessel to protect the blood vessel from damage.

[0012] The present invention is further configured such that a secondary silicone strip is provided on a side of the elastic sheet facing the main force storage sheet along the length direction of the elastic sheet.

[0013] In the above structure, the auxiliary silicone strip cooperates with the main silicone strip to squeeze the blood vessel when clamping the blood vessel, and contacts the blood vessel to protect the blood vessel from damage.

[0014] The present invention is further configured such that the main silicone strip and the auxiliary silicone strip are provided with wavy deformation protrusions on one side facing each other.

[0015] In the above structure, the deformation protrusions can improve the deformation capacity of the main silicone strip and the auxiliary silicone strip, which is beneficial to increase the contact area after deformation and reduce the squeezing stress on the blood vessels.

[0016] The present invention is further configured such that the arc length of the main force storage piece is longer than that of the elastic piece.

[0017] In the above structure, the elastic sheet and the main force storage sheet can be fitted together in the arch opening to leave a gap for accommodating the thickness of the blood vessel wall.

[0018] The present invention is further configured such that the main force storage piece and the elastic piece are integrally processed by glass fiber and epoxy resin, and the length direction of the glass fiber is in the same direction as the length direction of the main force storage piece and the elastic piece.

[0019] In the above structure, the overall strength and elasticity of the main force storage plate and the elastic plate can be effectively guaranteed.

[0020] The present invention is further configured such that the thickness of the connection between the main force storage plate and the elastic plate is smaller than the thickness of the elastic plate.

[0021] In the above structure, the elastic sheet can be easily opened to place the blood vessel.

[0022] The present invention is further configured such that a through hole is provided on the control ear.

[0023] In the above structure, the through hole can be adapted to the surgical forceps, and the tips of the surgical forceps are inserted into the through hole to drive the control ears to move closer to or farther from each other by controlling the opening and clamping of the surgical forceps.

[0024] The beneficial effects of the present invention are as follows: the opening of the main force storage plate arch is controlled by pushing the arc-shaped elastic sheet; after the elastic sheet passes the linear dead point, the reverse contraction of the main force storage plate arch is used to push the two ends of the elastic sheet, so that the elastic sheet is bent in the reverse direction toward the inside of the main force storage plate arch, so as to achieve the squeezing and clamping of the blood vessel; since the elastic sheet is squeezed at both ends by the main force storage plate arch to bend and flatten the blood vessel, its elasticity can be adaptively adjusted according to the thickness and thickness of the blood vessel wall; at the same time, since the blood vessel is located in the main force storage plate arch when squeezing the blood vessel, The bottom of the mouth can play a good centering role, avoiding the blood vessel from sliding and deviating when clamping, and solving the problem that the blood vessel is easy to slip when clamping with the existing blood vessel clamp, and the blood vessel is easily damaged due to excessive rigidity; when separating, it is only necessary to pull the two control ears away from each other to straighten the elastic sheet and push open the arch of the main force storage sheet. After the elastic sheet crosses the straight line dead point in the opposite direction, the arch of the main force storage sheet is retracted. Under the further pulling of the control ears, the elastic sheet separates the support part from the notch to form an open loop, which is convenient for removing the clamp from the blood vessel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the supporting portion and the notch of the present invention before adaptation.

[0026] Figure 2 It is a schematic structural diagram of the supporting portion of the present invention after being adapted to the notch.

[0027] Figure 3 This is a structural schematic diagram of the state in which the extrusion control ear of the present invention causes the arch mouth of the main force storage plate to open.

[0028] Figure 4 It is a schematic diagram of the reverse bending structure of the elastic sheet of the present invention after passing through the linear dead point position.

[0029] Figure 5 This is a schematic diagram of the structure of the elastic sheet opening the main force storage sheet when controlling ear separation according to the present invention.

[0030] Figure 6 It is a structural schematic diagram of the support portion and the notch of the present invention in a separated state.

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part A.

[0032] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of part B.

[0033] The meaning of the numbers in the figure are: 1-clamp; 10-main force storage plate; 11-notch; 12-guide slope; 13-main silicone strip; 20-elastic plate; 21-support part; 22-auxiliary silicone strip; 30-control ear; 31-deformation protrusion; 32-through hole. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0035] refer to Figures 1 to 8 ,like Figures 1 to 8The vascular clamp shown in the figure includes a clamp body 1, which includes a main force storage piece 10. The main force storage piece 10 is arched and the thickness of the middle part is thicker than that of the two ends. One end of the main force storage piece 10 is connected to an elastic piece 20 extending above its bow mouth to the other end of the main force storage piece 10. The elastic piece 20 is arched and its bow mouth faces the main force storage piece 10. The elastic piece 20 is provided with a support portion 21 relative to the end connected to the main force storage piece 10. The main force storage piece 10 is provided with a notch 11 relative to the end connected to the elastic piece 20. The notch 11 faces the end of the main force storage piece 10 connected to the elastic piece 20. The blood vessel is placed in the bow mouth of the main force storage piece 10 through The elastic sheet 20 is squeezed so that one end of the support part 21 falls into the slot 11 and is fixed by the support force in the length direction of the elastic sheet 20; the side of the main force storage sheet 10 facing away from the elastic sheet 20 and the middle position of the side of the elastic sheet 20 facing away from the main force storage sheet 10 are both provided with a control ear 30 for adapting to the surgical forceps to squeeze the main force storage sheet 10 and the elastic sheet 20, so that the two are brought closer to each other, causing the elastic sheet 20 to change from an arc to a straight line, increasing the length of its two ends, and after the arch of the main force storage sheet 10 is stretched open and passes the dead point of the straight line, the arch of the main force storage sheet 10 retracts and pushes the two ends of the elastic sheet 20 to bend in the opposite direction to clamp the blood vessel.

[0036] In the above structure, the opening of the arch of the main force storage piece 10 is controlled by pushing the arc-shaped elastic piece 20. After the elastic piece 20 passes the linear dead point position, the reverse contraction of the arch of the main force storage piece 10 is used to push the two ends of the elastic piece 20, so that the elastic piece 20 is bent in the opposite direction toward the inner side of the arch of the main force storage piece 10 to achieve the squeezing and clamping of the blood vessel. Since the elastic piece 20 is squeezed at both ends by the arch of the main force storage piece 10 to bend and flatten the blood vessel, its elasticity can be adaptively adjusted according to the thickness and thickness of the blood vessel wall. At the same time, since the blood vessel is located at the arch of the main force storage piece 10 when squeezing the blood vessel, The bottom can therefore play a good centering role, preventing the blood vessel from sliding and deviating when clamped, and solves the problem that the blood vessel is easy to slip when clamped by the existing blood vessel clamp, and the blood vessel is easily damaged due to excessive rigidity; when separating, it is only necessary to pull the two control ears 30 away from each other to straighten the elastic sheet 20 and push open the arch of the main force storage sheet 10. After the elastic sheet 20 crosses the straight line dead point position in the opposite direction, the arch of the main force storage sheet 10 is retracted, and the elastic sheet 20 is further pulled by the control ear 30 to separate the support part 21 from the notch 11 to form an open loop, which is convenient for removing the clamp body 1 from the blood vessel.

[0037] In this embodiment, the main force storage piece 10 is thicker than the elastic piece 20 , and the elastic piece 20 is softer than the main force storage piece 10 .

[0038] In the above structure, the main force storage piece 10 can maintain support and elastic effects, which is beneficial to controlling the bending of the elastic piece 20.

[0039] In this embodiment, when the support portion 21 of the elastic piece 20 is not buckled in, the slot 11 has a guiding slope 12 on one side thereof facing the support portion 21 and the connection between the main force storage piece 10 and the elastic piece 20 .

[0040] In the above structure, the guiding slope 12 is used to guide the supporting portion 21 to slide into the slot 11 .

[0041] In this embodiment, a main silicone strip 13 is provided on a side of the main force storage piece 10 facing the elastic piece 20 and is arranged along the length direction of the main force storage piece 10 .

[0042] In the above structure, the main silicone strip 13 is used to contact the blood vessel when clamping the blood vessel to protect the blood vessel from damage.

[0043] In this embodiment, a secondary silicone strip 22 is provided on a side of the elastic sheet 20 facing the main force storage sheet 10 and arranged along the length direction of the elastic sheet 20 .

[0044] In the above structure, the auxiliary silicone strip 22 cooperates with the main silicone strip 13 to squeeze the blood vessel when clamping the blood vessel, and contacts the blood vessel to protect the blood vessel from damage.

[0045] In this embodiment, the main silicone strip 13 and the auxiliary silicone strip 22 are provided with wave-shaped deformation protrusions 31 on their surfaces facing each other.

[0046] In the above structure, the deformable protrusions 31 can improve the deformation ability of the main silicone strip 13 and the auxiliary silicone strip 22, which is beneficial to increase the contact area after deformation and reduce the squeezing stress on the blood vessels.

[0047] In this embodiment, the arc length of the main force storage piece 10 is longer than that of the elastic piece 20 .

[0048] In the above structure, the elastic sheet 20 and the main force storage sheet 10 can be fitted together in the arch mouth, leaving a gap for accommodating the thickness of the blood vessel wall.

[0049] In this embodiment, the main force storage piece 10 and the elastic piece 20 are integrally formed by glass fiber and epoxy resin composite, and the length direction of the glass fiber is in the same direction as the length direction of the main force storage piece 10 and the elastic piece 20.

[0050] In the above structure, the overall strength and elasticity of the main force storage piece 10 and the elastic piece 20 can be effectively guaranteed.

[0051] In this embodiment, the thickness of the connection between the main force storage piece 10 and the elastic piece 20 is less than the thickness of the elastic piece 20 .

[0052] In the above structure, the elastic sheet 20 can be easily opened to place the blood vessel.

[0053] In this embodiment, a through hole 32 is provided on the control ear 30 .

[0054] In the above structure, the through hole 32 can be adapted to the surgical forceps, and the tips of the surgical forceps are inserted into the through hole 32 to drive the control ears 30 to move closer to or farther from each other by controlling the opening and clamping of the surgical forceps.

[0055] The beneficial effects of the present invention are as follows: the opening of the main force storage plate 10 is controlled by pushing the arc-shaped elastic sheet 20, and after the elastic sheet 20 passes the linear dead point position, the reverse contraction of the main force storage plate 10 is used to push the two ends of the elastic sheet 20, so that the elastic sheet 20 is bent in the reverse direction toward the inside of the main force storage plate 10, so as to achieve the squeezing and clamping of the blood vessel. Since the elastic sheet 20 is squeezed by the main force storage plate 10 at both ends to bend and flatten the blood vessel, its elasticity can be adaptively adjusted according to the thickness and thickness of the blood vessel wall. At the same time, since the blood vessel is located on the main force storage plate 10 when squeezing the blood vessel, The bottom of the arch can therefore play a good centering role, preventing the blood vessel from sliding and deviating when clamped, and solving the problem that the blood vessel is easy to slip when clamped by the existing vascular clamp, and the blood vessel is easily damaged due to excessive rigidity; when separating, it is only necessary to pull the two control ears 30 away from each other to straighten the elastic sheet 20 and push open the arch of the main force storage sheet 10. After the elastic sheet 20 crosses the straight line dead point position in the opposite direction, the arch of the main force storage sheet 10 is retracted, and the elastic sheet 20 is further pulled by the control ear 30 to separate the support part 21 from the slot 11 to form an open loop, which is convenient for removing the clamp body 1 from the blood vessel.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A vascular clamp, comprising a clamp body, characterized in that: The clamp body includes a main force storage piece, which is in the shape of an arch, wherein the thickness of the middle position is thicker than that of the two ends, and one end of the main force storage piece is connected to an elastic piece extending above the arch mouth to the other end of the main force storage piece, and the elastic piece is in the shape of an arch, wherein the arch mouth faces the main force storage piece, and the elastic piece is provided with a support portion relative to the end connected to the main force storage piece, and the main force storage piece is provided with a notch relative to the end connected to the elastic piece, and the notch faces the end of the main force storage piece connected to the elastic piece, and the blood vessel is placed in the arch mouth of the main force storage piece, and the end of the elastic piece provided with the support portion is squeezed so that the support portion falls into the notch and is fixed by the supporting force in the length direction of the elastic piece; the main storage The side of the force sheet facing away from the elastic sheet and the side of the elastic sheet facing away from the main force storage sheet are both provided with control ears at the middle position for adapting to the surgical forceps to squeeze the main force storage sheet and the elastic sheet, so that the two are brought closer to each other, causing the elastic sheet to change from an arc to a straight line, increasing the length of its two ends, and after the main force storage sheet arch is stretched open and passes the straight line dead point, the main force storage sheet arch is retracted to push the two ends of the elastic sheet to bend in the opposite direction to clamp the blood vessel; the overall thickness of the main force storage sheet is thicker than that of the elastic sheet, and the elastic sheet is softer than that of the main force storage sheet; when the support part of the elastic sheet is not buckled in, the groove is provided with a guiding slope on the side facing the support part and the connection between the main force storage sheet and the elastic sheet.

2. The vascular clamp according to claim 1, characterized in that: A main silicone strip is provided on one side of the main force storage piece facing the elastic piece and arranged along the length direction of the main force storage piece.

3. The vascular clamp according to claim 2, characterized in that: A secondary silicone strip is provided on one side of the elastic sheet facing the main force storage sheet along the length direction of the elastic sheet.

4. The vascular clamp according to claim 3, characterized in that: The main silicone strip and the auxiliary silicone strip are provided with wavy deformation protrusions on their sides facing each other.

5. The vascular clamp according to claim 1, characterized in that: The arc length of the main force storage piece is longer than that of the elastic piece.

6. The vascular clamp according to claim 1, characterized in that: The main force storage piece and the elastic piece are integrally processed by composite glass fiber and epoxy resin, and the length direction of the glass fiber is in the same direction as the length direction of the main force storage piece and the elastic piece.

7. The vascular clamp according to claim 1, characterized in that: The thickness of the connection between the main force storage piece and the elastic piece is smaller than the thickness of the elastic piece.

8. The vascular clamp according to claim 1, characterized in that: The control ear is provided with a through hole.

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