CN213787573U - Blood vessel tractor - Google Patents
Blood vessel tractor Download PDFInfo
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- CN213787573U CN213787573U CN202022174071.7U CN202022174071U CN213787573U CN 213787573 U CN213787573 U CN 213787573U CN 202022174071 U CN202022174071 U CN 202022174071U CN 213787573 U CN213787573 U CN 213787573U
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- opening
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- opening rod
- slider
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Abstract
The utility model provides a blood vessel tractor, which comprises a fixing piece, a slide block, a first opening rod and a second opening rod; the fixing piece is provided with an axis; the first opening rod and the second opening rod are arranged on the fixing piece and the sliding block respectively, each first opening rod and each second opening rod comprise an operation end used for being in contact with a blood vessel, the first opening rod and the second opening rod are respectively positioned on two sides of the axis of the fixing piece, and an included angle theta is formed between the first opening rod and the second opening rod; the slider can move along the direction of the axis of the fixing piece, and the distance between two working ends of the first opening rod and the second opening rod can be adjusted through the movement of the slider. The blood vessel tractor of an embodiment of the utility model has the characteristics of free opening and closing, no blood vessel damage and the like.
Description
Technical Field
The utility model relates to a medical appliance, in particular to a blood vessel tractor.
Background
Kidney transplantation is the ultimate treatment for chronic renal failure. Currently, kidney transplantation is mainly performed by placing the transplanted kidney at the iliac fossa position through open surgery. Laparoscopic kidney transplantation is currently in less use and is the direction of future research. In laparoscopic kidney transplantation, renal blood vessels need to be anastomosed, and in the anastomosis process, how to open closed blood vessels into a cylindrical shape to facilitate blood vessel anastomosis becomes a problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a blood vessel tractor, which comprises a fixing piece, a slide block, a first opening rod and a second opening rod; the fixing piece is provided with an axis; the first opening rod and the second opening rod are arranged on the fixing piece and the sliding block respectively, each first opening rod and each second opening rod comprise an operation end used for being in contact with a blood vessel, the first opening rod and the second opening rod are respectively positioned on two sides of the axis of the fixing piece, and an included angle theta is formed between the first opening rod and the second opening rod; the slider can move along the direction of the axis of the fixing piece, and the distance between two working ends of the first opening rod and the second opening rod can be adjusted through the movement of the slider.
According to the utility model discloses an embodiment be provided with first through-hole and second through-hole on the slider, first pole passes to strut first through-hole, the second pole passes to strut the second through-hole.
According to an embodiment of the present invention, the first spreading rod comprises a first spreading portion and a first control portion, the first control portion comprises a first end and a second end; the first control part penetrates through the first through hole, is fixedly connected to the fixing part through the first end, and is connected with the first opening part through the second end; the operating end of the first opening rod is arranged on the first opening part; the second opening rod comprises a second opening part and a second control part, and the second control part comprises a third end and a fourth end; the second control part penetrates through the second through hole, is fixedly connected to the fixing part through the third end and is connected with the second opening part through the fourth end; the working end of the second opening rod is arranged on the second opening part; the first control part and the second control part have the included angle theta.
According to an embodiment of the present invention, the value of the included angle θ is 10 ° or more and 45 ° or less, and/or the first spreading portion and the second spreading portion are both S-shaped, and the first control portion and the second control portion are both linear; and/or, a gasket is respectively arranged on the first control part and the second control part.
According to the utility model discloses an embodiment, along the perpendicular to the direction of mounting axis, first through-hole with the maximum distance of second through-hole is L0The distance between the first end of the first control part and the second control part is L1The distance between the second end of the first control part and the second control part is L2Wherein L is1＜L2，L1≤L0≤(L1+L2)/2。
According to the utility model discloses an embodiment, the vascular tractor still includes the moving member through-hole has been seted up on the mounting, the moving member set up in the through-hole of mounting, the slider set up in the moving member, the moving member can drive the slider is followed the direction of mounting axis removes.
According to an embodiment of the present invention, the side wall of the through hole of the fixing member and the moving member are provided with matching threads; and/or a third through hole is formed in the sliding block, and the moving piece is arranged in the third through hole.
According to the utility model discloses an embodiment, the mounting is the nut, the moving member is the bolt.
According to an embodiment of the present invention, the moving member includes a threaded area provided with threads and a blank area not provided with threads, and the slider is disposed in the blank area; along the direction of mounting axis, the moving member has first end and second end, first end with the second end is located respectively the both sides of mounting, first end be located the screw thread district or with the screw thread district links to each other, the second end is located blank area.
According to an embodiment of the present invention, the end of the moving member is provided with a handle, the handle and the slider are respectively located on both sides of the fixing member.
According to the utility model discloses an embodiment, first pole with the second pole is propped open and is made by the elastic metal silk.
The blood vessel tractor of an embodiment of the utility model has the characteristics of free opening and closing, no blood vessel damage and the like.
Drawings
The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
fig. 1 is a schematic structural view of a blood vessel retractor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a slider according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
As shown in fig. 1, one embodiment of the present invention provides a blood vessel retractor, which includes a fixing member 10, two spreader bars and a slider 30; a through hole is arranged on the fixing piece 10; the two opening rods are arranged on the fixed part 10 and the sliding block 30, each of the two opening rods comprises an operation end used for contacting with a blood vessel, and an included angle theta is formed between the two opening rods; the sliding block 30 can move along the through hole axis OO' of the fixing member 10, and the distance between the two working ends of the two opening rods can be adjusted by the movement of the sliding block 30, so that the opening and closing operation of the blood vessel can be realized.
In one embodiment, the blood vessel retractor further includes a moving member 20, the moving member 20 is disposed in the through hole of the fixing member 10, the sliding block 30 is disposed on the moving member 20, and the moving member 20 can drive the sliding block 30 to move along the through hole axis OO' of the fixing member 10.
In one embodiment, the two opening rods include a first opening rod and a second opening rod, the first opening rod and the second opening rod may have the same structure, and the first opening rod and the second opening rod are located on the same side of the fixing member 10.
In one embodiment, the first and second spreader bars each pass through the slider 30.
In one embodiment, as shown in fig. 2, the slider 30 includes a first through hole 31 and a second through hole 32, and the first spreading bar and the second spreading bar can respectively pass through the slider 30 through the first through hole 31 and the second through hole 32.
In one embodiment, the two opening rods may be made of elastic metal, for example, the opening rods may be made of elastic metal wire.
In one embodiment, the first spreading bar and the second spreading bar are respectively located on two sides of the through hole axis OO 'and are symmetrical with respect to the through hole axis OO' of the fixing member 10.
In one embodiment, the first spreader lever includes a first spreader portion 41 and a first control portion 42, and the second spreader lever includes a second spreader portion 51 and a second control portion 52.
In one embodiment, the first and second dilating portions 41 and 51 include a first and second working ends 41a and 51a, respectively, for directly contacting the blood vessel to perform a dilating operation; the first and second controllers 42 and 52 are used to adjust the distance between the first and second distracting parts 41 and 51.
In one embodiment, both the first and second distracting portions 41, 51 may be curved, for example S-shaped.
In one embodiment, the first and second working ends 41a, 51a of the first and second distracting portions 41, 51 are outwardly disposed, i.e., the first and second working ends 41a, 51a face away from the through hole axis OO' of the fastener 10.
In one embodiment, the first spreader portion 41 has one end connected to the first control portion 42 and the other end serving as a first working end 41a that contacts the blood vessel; similarly, the second spreader portion 51 has one end connected to the second control portion 52 and the other end as a second working end 51a that contacts the blood vessel. The first spreader portion 41 and the second spreader portion 51 are provided to face each other.
In one embodiment, the first control portion 42 may be a straight structure, including a first end and a second end at two ends; the first control part 42 passes through the first through hole 31, and a first end thereof is fixedly connected to the fixing member 10, and a second end thereof is connected to the first spreading part 41; similarly, the second control portion 52 may be of a linear type, including a third end and a fourth end at both ends; the second control portion 52 passes through the second through hole 32, and has a third end fixedly connected to the fixing member 10 and a fourth end connected to the second spreading portion 51.
In one embodiment, the first control portion 42 and the second control portion 52 are both obliquely disposed on the fixing element 10, and the oblique directions are opposite, so that an included angle θ is formed between the first control portion 42 and the second control portion 52, where θ is greater than or equal to 10 and less than or equal to 45 °, for example, θ may be 12 °, 15 °, 18 °, 20 °, 25 °, 30 °, 35 °, 40 °, and the like.
In an embodiment, in a natural state, along a direction perpendicular to the through hole axis OO' of the fixing member 10, a distance between the first end of the first control portion 42 and the second control portion 52 (or a distance from the third end) is smaller than a distance between the second end of the first control portion 42 and the second control portion 52 (or a distance from the fourth end), and a distance between the first control portion 42 and the second control portion 52 is gradually increased from the first end to the second end.
In one embodiment, the distance between the first through hole 31 and the second through hole 32 is L along a direction perpendicular to the through hole axis OO' of the fixing member 100The distance between the first control part 42 and the second control part 52 is LxDue to the included angle theta, LxTo change value, the farther away from the fixing piece10，LxThe larger the value of (c). Wherein, as shown in FIG. 2, L0Refers to the longest distance between the first through-hole 31 and the second through-hole 32 in a direction perpendicular to the through-hole axis OO' of the fixing member 10.
In one embodiment, the distance L between the first end of the first control portion 42 and the second control portion 52 is perpendicular to the through-hole axis OO' of the fixing member 10xIs L1The distance L between the second end of the first control part 42 and the second control part 52xIs L2，L1＜L2And L is1≤L0≤(L1+L2)/2。
In one embodiment, when the slider 30 is adjacent to the first end of the first control portion 42, the third end of the second control portion 52 or adjacent to the fixing element 10, the first control portion 42 and the second control portion 52 are in a natural state, and at this time, the distance between the first working end 41a of the first distraction portion 41 and the second working end 51a of the second distraction portion 51 reaches the maximum, and the blood vessel distractor is in a maximum distraction state;
as the slider 30 moves in the direction of the through hole axis OO' of the fixed member 10 toward the second end of the first control portion 42, the fourth end of the second control portion 52, or a direction away from the fixed member 10, the distance L between the first control portion 42 and the second control portion 52 in the natural statexGradually become larger when L0＜LxIn the meantime, since the first control portion 42 and the second control portion 52 are located in the first through hole 31 and the second through hole 32 and constrained by the first through hole 31 and the second through hole 32, the first control portion 42 and the second control portion 52 are deformed, and the distance between the first control portion 42 and the second control portion is LxIs changed into L0So that the first opening part 41 and the second opening part 51 connected with the first opening part and the second opening part are close to the axis OO', the distance between the two working ends is reduced, and the blood vessel retractor is gradually in a closed state;
conversely, when the slider 30 is moved in the direction of the through hole axis OO' of the fixing element 10 toward the first end of the first control portion 42, the third end of the second control portion 52, or toward the fixing element 10, the first control portion 42 and the second control portion 52 gradually return to the natural state, and the distance between the two working ends increases until the maximum opening state. Thus, the blood vessel retractor can be opened and closed along the axis OO' of the through hole of the fixing member 10 by the slider 30.
In one embodiment, the sliding block 30 may be a rectangular piece, or may be a circular piece, a third through hole 33 is formed on the sliding block 30, and the moving member 20 may be disposed in the third through hole 33.
In one embodiment, the side wall of the through hole of the fixed member 10 and the moving member 20 are provided with matching threads, and the moving member 20 can drive the sliding block 30 to move along the axis OO' of the through hole of the fixed member 10 by the action of the threads.
In one embodiment, the sliding block 30 is movably disposed on the moving member 20, that is, the sliding block 30 only moves forward and does not rotate during the spiral forward process of the moving member 20.
In one embodiment, the fixed member 10 is a nut and the movable member 20 is a bolt.
In one embodiment, moving member 20 includes a threaded region with threads and a blank region without threads, both the threaded region and the blank region extend along the axis OO' of the through hole, and slider 30 is disposed in the blank region. Along the through hole axis OO', the moving member 20 has a first end portion and a second end portion, the first end portion and the second end portion are respectively located at two sides of the fixed member 10, the first end portion is adjacent to or located in the threaded area, the second end portion is located in the blank area, and the sliding block 30 is adjacent to the second end portion. The length of the blank area can account for 1/3 ~ 1/2 of moving member 20 total length, and the existence of blank area can avoid excessive traction to lead to the damage of first distraction portion 41, second distraction portion 51. Wherein the length refers to a dimension in the direction of the through hole axis OO'.
In one embodiment, a handle 21 is disposed at a first end of the moving member 20 so as to be capable of moving by holding the moving member 20 with a hand, and the handle 21 and the slider 30 are respectively disposed at two sides of the fixed member 10.
In one embodiment, the first control portion 42 and the second control portion 52 are respectively provided with a pad 42a and a pad 52a to increase the force-bearing area for facilitating the clamping of the forceps.
In one embodiment, the pad 42a is adjacent to the second end of the first control portion 42, and the pad 52a is adjacent to the fourth end of the second control portion 52.
In one embodiment, the pads 42a, 52a have a wavy undulating structure, such as a tile shape.
In one embodiment, the pads 42a, 52a have a relatively flat bottom and have a sloping shoulder or two ends raised and lowered to resemble a saddle structure, so as to facilitate clamping of the laparoscopic forceps during surgery and ease placement of the retractor.
In one embodiment, the maximum lateral dimension of the vascular retractor is less than 10mm, the lateral dimension being the dimension perpendicular to the axis OO' of the through-hole.
The blood vessel retractor of the embodiment of the utility model can be used in a laparoscope state, can enter and exit the laparoscope sleeve, is beneficial to minimally invasive operation,
unless otherwise defined, all terms used in the present invention have the meanings commonly understood by those skilled in the art.
The described embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention, and various other substitutions, changes and modifications may be made by those skilled in the art within the scope of the present invention.
Claims (10)
1. A vascular retractor, comprising:
a fixed member having an axis;
a slider; and
the first opening rod and the second opening rod are arranged on the fixing piece and the sliding block respectively, each first opening rod and each second opening rod comprise an operation end used for being in contact with a blood vessel, the first opening rods and the second opening rods are respectively positioned on two sides of the axis of the fixing piece, and an included angle theta is formed between the first opening rods and the second opening rods;
the slider can move along the direction of the axis of the fixing piece, and the distance between two working ends of the first opening rod and the second opening rod can be adjusted through the movement of the slider.
2. The vascular retractor of claim 1, wherein the slider is provided with a first through hole through which the first spreader bar passes and a second through hole through which the second spreader bar passes.
3. The vascular retractor of claim 2, wherein the first spreader bar includes a first spreader portion and a first control portion, the first control portion including a first end and a second end; the first control part penetrates through the first through hole, is fixedly connected to the fixing part through the first end, and is connected with the first opening part through the second end; the operating end of the first opening rod is arranged on the first opening part;
the second opening rod comprises a second opening part and a second control part, and the second control part comprises a third end and a fourth end; the second control part penetrates through the second through hole, is fixedly connected to the fixing part through the third end and is connected with the second opening part through the fourth end; the working end of the second opening rod is arranged on the second opening part;
the first control part and the second control part have the included angle theta.
4. The vascular retractor according to claim 3, wherein the angle θ is 10 ° -45 °,
and/or the first opening part and the second opening part are S-shaped, and the first control part and the second control part are linear;
and/or, a gasket is respectively arranged on the first control part and the second control part.
5. The vascular retractor of claim 3, wherein the maximum distance between the first through hole and the second through hole in a direction perpendicular to the fastener axis is L0What is, what isThe first end of the first control part is at a distance L from the second control part1The distance between the second end of the first control part and the second control part is L2Wherein L is1＜L2，L1≤L0≤(L1+L2)/2。
6. The blood vessel retractor of claim 1, further comprising a moving member, wherein the fixed member has a through hole, the moving member is disposed in the through hole of the fixed member, the sliding block is disposed on the moving member, and the moving member can drive the sliding block to move along the axis of the fixed member.
7. The vascular retractor of claim 6, wherein matching threads are provided on the sidewall of the through hole of the fixing member and on the moving member; and/or a third through hole is formed in the sliding block, and the moving piece is arranged in the third through hole.
8. The vascular retractor of claim 7, wherein the fixed member is a nut and the movable member is a bolt.
9. The vascular retractor of claim 7, wherein the movable member includes a threaded region provided with threads and a blank region not provided with threads, the slider being disposed in the blank region; along the direction of mounting axis, the moving member has first end and second end, first end with the second end is located respectively the both sides of mounting, first end be located the screw thread district or with the screw thread district links to each other, the second end is located blank area.
10. The vascular retractor of claim 6, wherein a handle is provided at an end of the moving member, and the handle and the slider are respectively located at both sides of the fixed member; and/or the presence of a gas in the gas,
the first opening rod and the second opening rod are both made of elastic metal wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022174071.7U CN213787573U (en) | 2020-09-28 | 2020-09-28 | Blood vessel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022174071.7U CN213787573U (en) | 2020-09-28 | 2020-09-28 | Blood vessel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213787573U true CN213787573U (en) | 2021-07-27 |
Family
ID=76955974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022174071.7U Active CN213787573U (en) | 2020-09-28 | 2020-09-28 | Blood vessel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213787573U (en) |
-
2020
- 2020-09-28 CN CN202022174071.7U patent/CN213787573U/en active Active
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