CN218979113U - Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit - Google Patents
Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit Download PDFInfo
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- CN218979113U CN218979113U CN202222613055.2U CN202222613055U CN218979113U CN 218979113 U CN218979113 U CN 218979113U CN 202222613055 U CN202222613055 U CN 202222613055U CN 218979113 U CN218979113 U CN 218979113U
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 103
- 239000002473 artificial blood Substances 0.000 title claims abstract description 44
- 238000005520 cutting process Methods 0.000 title claims abstract description 41
- 230000003872 anastomosis Effects 0.000 title claims abstract description 31
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 28
- 230000002792 vascular Effects 0.000 claims abstract description 13
- 230000002439 hemostatic effect Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 210000000709 aorta Anatomy 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000003902 lesion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
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Abstract
The utility model discloses a cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit, which comprises a cylinder body, a sheath cylinder, a cutter, a clamping sleeve, a clamping mechanism and an artificial blood vessel; the sheath cylinder can be sleeved in the cylinder body in a sliding way; the cutter is slidably arranged in the sheath cylinder and is used for cutting off the vascular wall of the large blood vessel to form an incision; the first end part of the clamping sleeve, which is close to the large blood vessel, is or the outer wall of the clamping sleeve is provided with a clamping structure which can be unfolded along the radial direction; the artificial blood vessel is internally arranged in the sheath tube and is sleeved outside the second end part of the clamping sleeve, which is far away from the great blood vessel; the clamping sleeve can be inserted into the notch along with the sheath barrel and can be kept fixed when the sheath barrel is withdrawn from the notch, so that the clamping structure of the clamping sleeve can be unfolded along the radial direction to clamp the inner wall of the notch after the clamping structure is separated from the sheath barrel; the clamping mechanism is used for sleeving the barrel, the sheath barrel and the cutter outside the middle part of the clamping sleeve after being removed, and is used for clamping the inner wall and the outer wall of the notch by opposite clamping with the clamping mechanism.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit.
Background
It is well known that aortic bypass vascular prosthesis creation surgery is a routine procedure for treating local lesions of the aorta. The method comprises the following steps: the artificial blood vessel is used as a blood vessel substitute, the proximal end and the distal end of the blood vessel at the lesion site are communicated to form a blood vessel bypass, so that blood bypasses the lesion site to reach the distal end, the blood supply at the distal end is recovered, and the purposes of relieving the ischemia symptom at the distal end and rescuing the life of a patient are achieved. At present, a known surgical knife is used for carrying out the operation, namely, a longitudinal incision is firstly made on the side wall of the aorta clamped by the side wall clamp, and then the artificial vascular end is anastomosed on the incision of the aorta by a surgical needle and a suture, but the conventional operation is complex, easy to bleed, large in wound, high in risk and high in implementation difficulty.
To solve the above problems, a combination machine capable of opening an aorta and installing an artificial blood vessel has been developed. Wherein, the working process of the combined machine is as follows: firstly, opening on the aorta, then sending part of the wall clamping mechanism into the incision, and triggering the wall clamping mechanism to clamp the inner wall and the outer wall of the incision at proper time, so as to realize anastomosis between the incision of the vessel wall and the artificial blood vessel.
However, the prior combined machine has the problems of complex wall clamping structure, inconvenient wall clamping operation and use and the like.
Disclosure of Invention
In view of the above, the utility model provides a cutting type large vessel opening and artificial vessel synchronous anastomosis surgical kit, which can make the clamping structure of the inner wall and the outer wall of the vessel wall incision simpler, and the clamping operation is more convenient, thereby being beneficial to bringing more convenience for the operation and the use of operators.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a cut-off large vessel opening and artificial blood vessel synchronous anastomosis surgical kit, comprising: the device comprises a cylinder body, a sheath cylinder, a cutter, a clamping sleeve, a clamping mechanism and an artificial blood vessel;
the sheath cylinder is slidably sleeved in the cylinder body;
the cutter is slidably arranged in the sheath cylinder and is used for cutting off the vessel wall of a great vessel to form an incision;
the clamping sleeve is sleeved on the first end part of the sheath cylinder, which is close to the large blood vessel, and the cutter passes through the clamping sleeve, wherein the first end part of the clamping sleeve, which is close to the large blood vessel, is of a clamping structure which can be elastically unfolded along the radial direction, or the outer wall of the clamping sleeve is provided with a clamping structure which can be elastically unfolded along the radial direction;
the artificial blood vessel is internally arranged in the sheath tube and is sleeved outside the second end part of the clamping sleeve, which is far away from the large blood vessel;
the clamping sleeve can penetrate into the notch along with the sheath barrel and can also be kept fixed when the sheath barrel is withdrawn from the notch, so that the clamping structure of the clamping sleeve can be elastically unfolded along the radial direction to clamp the inner wall of the notch after the clamping structure is separated from the sheath barrel; the clamping mechanism is used for being sleeved outside the middle part of the clamping sleeve after the barrel, the sheath barrel and the cutter are removed, and is used for being clamped with the clamping structure in a butt joint mode to clamp the inner wall and the outer wall of the notch.
Preferably, the outer wall of the first end part of the clamping sleeve is provided with the clamping structure;
the clamping structure comprises:
the second elastic card is arranged on the outer wall of the first end part of the clamping sleeve and can be elastically unfolded along the radial direction of the clamping sleeve.
Preferably, the number of the second elastic cards is a plurality of, and the second elastic cards are uniformly distributed along the circumference of the first end of the clamping sleeve.
Preferably, the second elastic card is elastically unfolded towards one side far away from the first end face of the clamping sleeve, and the elastic unfolding angle is 30-45 degrees.
Preferably, the second elastic card is a triangular elastic card.
Preferably, the first end of the clamping sleeve is the clamping structure;
the clamping structure comprises:
the clamping sleeve is uniformly arranged in the circumferential direction, the middle part of the clamping sleeve is close to the first end face of the large blood vessel, and the clamping sleeve can be elastically unfolded along the radial direction of the clamping sleeve.
Preferably, the clamping mechanism comprises:
the screwing ring is used for being in threaded fit with the outer peripheral wall of the middle part of the clamping sleeve and is used for being clamped with the clamping structure in a butt joint mode to clamp the inner wall and the outer wall of the notch.
Preferably, the method further comprises:
the hemostatic felt ring is sleeved on the outer peripheral wall of the middle part of the clamping sleeve and positioned between the screwing ring and the outer wall of the notch.
Preferably, the first end surface of the clamping sleeve is provided with a hook for abutting and matching with the first end surface of the sheath tube.
Preferably, a chamfer is arranged between the first end face and the peripheral wall of the sheath tube;
the tail end of the hook part of the hook is provided with an inclined plane and is positioned on the extension surface of the chamfer.
Preferably, the method further comprises:
the sleeve locking mechanism is arranged on the cylinder body and used for locking the clamping sleeve to fix the clamping sleeve when the sheath cylinder is withdrawn from the notch.
Preferably, the first end of the sheath tube is provided with an avoidance port;
the sleeve locking mechanism includes:
the third locking screw is in threaded fit with the wall of the cylinder body in the radial direction and used for pressing the outer wall of the clamping sleeve through the avoiding opening when the sheath cylinder is withdrawn from the notch.
Preferably, the avoiding port is a long strip avoiding port arranged along the axial direction of the sheath tube;
the strip avoidance port is close to the position of the first end part of the large blood vessel, which is aligned with the position of the third locking screw, and the detection limit position of the second end part of the large blood vessel, which is far away from the large blood vessel, is aligned with the position of the third locking screw.
Preferably, the strip avoiding opening is a strip avoiding opening and penetrates through the first end face of the sheath cylinder.
Preferably, the tool comprises a rotary cutter or a straight cutter.
According to the technical scheme, the cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit provided by the utility model can enable the clamping structure of the inner wall and the outer wall of the blood vessel wall incision to be simpler, and the clamping operation is more convenient and faster, so that the surgical kit is beneficial to bringing more convenience for the operation and the use of operators.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit in an initial state according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a surgical kit for simultaneous anastomosis of a cut-type large vessel opening and a blood vessel prosthesis in an initial state according to another embodiment of the present utility model;
FIG. 3 is a schematic view of a surgical kit for simultaneous anastomosis of a cut-type large vessel opening and a vascular prosthesis in an initial state according to still another embodiment of the present utility model;
FIG. 4 is a schematic view of a needle according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view A-A of FIG. 3;
FIG. 6 is a schematic structural view of a rotary cutter head according to an embodiment of the present utility model;
FIG. 7 is a view in the B direction of FIG. 5;
FIG. 8 is a schematic view of a cutter bar according to an embodiment of the present utility model;
FIG. 9 is a view in direction A of FIG. 7;
fig. 10 is a schematic structural view of a sheath according to an embodiment of the present utility model;
FIG. 11 is a schematic view showing a state in which the clamping sleeve and the tightening ring clamp the vessel wall after the opening according to the embodiment of the present utility model;
FIG. 12 is a cross-sectional view A-A of FIG. 10;
fig. 13 is a schematic view of a state in which the clamping sleeve and the tightening ring clamp the vessel wall after the opening according to another embodiment of the present utility model.
The blood vessel protecting cap comprises a second end protecting cap body 1, a spring pressing plate fixing bolt 2, a first locking screw 3, a needle return spring 4, a rotary cutter head connecting device 5, a sheath tube connecting device 6, a second locking screw 7, a cylinder body 8, a sheath tube 9, a chamfer 9a, a relief hole 9b, a handle 10, an artificial blood vessel 11, a clamping sleeve 12, a first elastic card 12a, a hook 12a1, an inclined plane 12a11, a second elastic card 12b, a third locking screw 13, a rotary cutter head 14, a cutting blade 14a, a needle head 15, a crisscross arrow 15a, a first end protecting cap 16, a rotary tightening ring 17, a blood felt ring 18, a blood vessel wall 19, a cutter bar handle 20, a fourth locking screw 21, a cutter bar 22, a cutter bar 23, a cutting edge 24 and a cutter head 25.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit, as shown in fig. 1 to 3, comprising: a cylinder body 8, a sheath cylinder 9, a cutter, a clamping sleeve 12, a clamping mechanism and an artificial blood vessel 11;
the sheath cylinder 9 can be sleeved in the cylinder body 8 in a sliding way; wherein the structure of the sheath tube 9 can be shown with reference to fig. 10;
the cutter is slidably arranged in the sheath tube 9 and is used for cutting off the vessel wall 19 of the large vessel to form an incision;
the clamping sleeve 12 is sleeved at the first end part of the sheath tube 9, which is close to the large blood vessel, and the cutter passes through the clamping sleeve 12, wherein the first end part of the clamping sleeve 12, which is close to the large blood vessel, is a clamping structure which can be elastically unfolded along the radial direction, or the outer wall of the first end part of the clamping sleeve 12 is provided with a clamping structure which can be elastically unfolded along the radial direction;
the artificial blood vessel 11 is arranged in the sheath tube 9 and is sleeved outside the second end part of the clamping sleeve 12, which is far away from the great blood vessel; of course, the tool also passes through vascular prosthesis 11;
the clamping sleeve 12 can be inserted into the notch along with the sheath tube 9 and can also be kept fixed when the sheath tube 9 is withdrawn from the notch, so that the clamping structure of the clamping sleeve can elastically expand along the radial direction to clamp the inner wall of the notch after the clamping structure is separated from the sheath tube 9; the clamping mechanism is used for being sleeved on the middle part of the clamping sleeve 12 after the barrel 8, the sheath barrel 9 and the cutter are removed, and is used for clamping the inner wall and the outer wall of the notch by being opposite to the clamping mechanism.
Firstly, the above-mentioned components are close to the end of the large blood vessel, and the above-mentioned close to the large blood vessel means toward the large blood vessel; in addition, the first end of each component in the scheme is the bottom of the corresponding component in fig. 1 or 3, the second end of each component is the top of the corresponding component in fig. 1 or 3, and the first end surface and the second end surface are the same, i.e. the first end surface is the bottom end surface, and the second end surface is the top end surface. Secondly, the surgical kit of the scheme also comprises a sheath cylinder operation head for driving the sheath cylinder 9 to slide along the cylinder body 8 and a cutter operation head for driving a cutter to slide along the sheath cylinder 9; wherein, the sheath operating head is connected with the second end of the sheath 9 far away from the great vessel and is positioned at the second end of the cylinder 8 far away from the great vessel, and the sheath operating head is the sheath connecting device 6 as shown in fig. 1 or 3; the description of the tool operating head is described below.
In addition, the scheme also comprises a cutter locking mechanism for locking the cutter operation head and a sheath barrel locking mechanism for locking the sheath barrel operation head to the barrel body 8; the tool locking mechanism may be the fourth locking screw 21 in fig. 3, and the sheath locking mechanism may be the second locking screw 7 in fig. 1 or fig. 3. In addition, as shown in fig. 1 or fig. 3, after the clamping structure (i.e., the first elastic card 12a or the second elastic card 12b hereinafter) of the clamping sleeve 12 elastically expands along the radial direction to clamp (prop against) the inner wall of the incision, the barrel 8 can drive the sheath 9 and the cutter to slowly withdraw from the clamping sleeve 12 together, so that after the artificial blood vessel 11 is exposed, the hemostatic forceps are immediately used to clamp the artificial blood vessel 11, thereby avoiding blood leakage. It should be noted that during this process, the clamping mechanism may be externally applied to effect clamping of the inner and outer walls of the incision while the intermediate portion of the snap sleeve 12 is exposed. Of course, before the components such as the cylinder 8 are removed, the effect of avoiding blood leakage can be achieved by the structure of the relatively sealed chamber formed by the components such as the cylinder 8, the sheath 9 and the cutter.
Besides, the present direct cutting tool or rotary cutting tool is adopted in the scheme, which is not described herein, of course, the present scheme also drives the clamping sleeve 12 to be inserted (probed down) into the incision through the sheath tube 9 after the tool cuts the vessel wall to form the incision, so that the clamping structure in the retracted state of the clamping sleeve 12 is sent into the incision, and then after the sheath tube 9 withdraws (resets upwards) from the incision relative to the clamping sleeve 12, the clamping structure can be elastically unfolded along the radial direction to clamp the inner wall of the incision (as shown in fig. 11 or 13) after being released from the restraint of the sheath tube 9, and further the clamping structure is switched from the retracted state to the unfolded state. Meanwhile, in order to better understand the surgical kit provided in this embodiment, the following description will be given with reference to fig. 1:
1. opening the cutter locking mechanism, pressing the cutter operating head down to drive the cutter to cut the vessel wall 19 of the large vessel to form a cut;
2. opening the sheath cylinder locking mechanism, pressing down the sheath cylinder operating head to enable the sheath cylinder 9 to drive the clamping sleeve 12 to extend downwards into the notch, so that the clamping structure of the clamping sleeve 12 reaches a preset position, and the clamping sleeve 12 is kept fixed;
3. the cutter operating head and the sheath tube operating head are pulled up, so that the clamping structure of the clamping sleeve 12 elastically expands along the radial direction to clamp (clamp) the inner wall of the incision after the clamping structure is separated from the sheath tube 9;
4. slowly withdrawing the cylinder body 8, the sheath cylinder 9 and the rotary cutter head 14 from the clamping sleeve 12, and clamping the artificial blood vessel 11 by adopting a hemostatic forceps after the artificial blood vessel 11 leaks;
5. the clamping mechanism is sleeved outside the middle part of the clamping sleeve 12, so that the clamping mechanism and the clamping structure are oppositely clamped to clamp the inner wall and the outer wall of the notch.
That is, the operation kit provided by the scheme can make the operation structure of the opening of the blood vessel wall simpler and the operation more convenient, thereby bringing convenience for the operation of the operator and realizing the synchronous anastomosis of the incision of the blood vessel wall and the artificial blood vessel.
According to the technical scheme, the cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit provided by the embodiment of the utility model can enable the clamping structure of the inner wall and the outer wall of the blood vessel wall incision to be simpler, and the clamping operation is more convenient and faster, so that more convenience is brought to the operation and the use of operators.
In the embodiment of the scheme, the outer wall of the first end part of the clamping sleeve 12 is provided with a clamping structure;
as shown in fig. 13, the clamping structure includes:
the second elastic card 12b is arranged on the outer wall of the first end part of the clamping sleeve 12 and can be elastically unfolded along the radial direction of the clamping sleeve 12. That is, when the sheath tube 9 is withdrawn from the slit relative to the engaging sleeve 12, the second elastic card 12b can be elastically unfolded in the radial direction to engage (abut) the inner wall of the slit after being separated from the sheath tube 9. The clamping structure of this scheme designs like this, has characteristics such as simple structure, joint are convenient.
Specifically, in order to improve the clamping effect of the inner wall of the notch, the number of the second elastic cards 12b is plural, and the second elastic cards are uniformly distributed along the circumferential direction of the first end portion of the clamping sleeve 12.
Further, the second elastic card 12b is elastically unfolded towards the side far away from the first end surface of the clamping sleeve 12, as shown in fig. 13, that is, the second elastic card 12b can be elastically unfolded upwards along the radial direction of the clamping sleeve 12, and the elastic unfolding angle is 30 ° -45 °. Therefore, when the sheath tube 9 is pulled, the second elastic card 12b can be made to better clamp the inner wall of the incision, and even the second elastic card 12b can be inserted into the inner wall of the incision, so that the effect of clamping and fixing can be achieved, and the clamping effect of the inner wall and the outer wall of the incision can be improved.
Still further, in order to enable the second elastic card 12b to be better inserted into the inner wall of the cutout, the second elastic card 12b is a triangular elastic card. Preferably, the second elastic card 12b is an isosceles triangle elastic card, i.e., the top tip of the isosceles triangle elastic card is utilized, so as to be more conveniently inserted into the inner wall of the incision when being pulled and ejected.
In addition, it should be noted that, the second elastic card 12b in this embodiment is obtained by cutting the wall of the first end portion of the clamping sleeve 12, and the second elastic card 12 has an unfolding elasticity by material processing, as shown in fig. 13, that is, the bottom edge of the second elastic card 12b is elastically connected to the clamping sleeve body, and has an unfolding state and a folding state. In the retracted state, the second elastic card 12b is pressed back into the cutting groove thereof, that is, when the clamping sleeve 12 is assembled, the second elastic card 12b is pressed back into the cutting groove thereof (as shown in fig. 2), and then the clamping sleeve 12 is sleeved upward and inward into the bottom of the sheath tube 9. In addition, the closer the bottom edge of the second elastic card 12b is to the bottom end of the clamping sleeve 12, for example, the spacing is 0.5mm, so that the smaller the depth of the clamping sleeve 12 penetrating into the notch is, thereby facilitating the quick clamping of the clamping sleeve 12.
In another embodiment of the present solution, as shown in fig. 11, the first end of the clamping sleeve 12 is a clamping structure;
the clamping structure comprises:
the plurality of first elastic cards 12a are uniformly arranged on the middle part of the clamping sleeve 12 near the first end face of the great vessel along the circumferential direction and can be elastically unfolded along the radial direction of the clamping sleeve 12. The design of this scheme is so not only convenient for expansion or stowing of this clamping structure, but also in order to make a plurality of first elastic cards 12a be petal-shaped elastic cards (as shown in fig. 12) when popping out and expanding to the inner wall of joint incision is convenient for better. Further, as shown in fig. 11, the plurality of first elastic clips 12a are each elastically spread downward in the radial direction of the click sleeve 12, and the angle of elastic spread is 90 °.
In this embodiment, as shown in fig. 11 or 13, the clamping mechanism includes:
a tightening ring 17 for screw-fitting with the outer peripheral wall of the intermediate portion of the click-on sleeve 12 and for clamping with the click-on structure to clamp the inner and outer walls of the slit. Wherein, the outer wall of the middle part of the clamping sleeve 12 is provided with external threads, and the inner wall of the screwing ring 17 is provided with internal threads matched with the external threads. The scheme realizes the butt clamping of the screwing ring 17 and the first elastic card 12a or the second elastic card 12b through the screwing fit of the screwing ring 17 and the screw thread in the middle part of the clamping sleeve 12, thereby achieving the effect of screwing the inner wall and the outer wall of the clamping incision, leading the clamping structure of the inner wall and the outer wall of the blood vessel wall incision to be simpler and the clamping operation to be more convenient; in addition, the clamping mechanism is designed in such a way, and has the characteristics of simple structure, convenience in butt clamping, reliability in clamping and the like. Of course, the screwing operation of the screwing ring 17 is performed after the withdrawal of the barrel 8 and other members, and the intermediate portion of the locking sleeve 12 is exposed.
Specifically, as shown in fig. 11, the cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit provided by the embodiment of the utility model further includes:
a hemostatic felt ring 18 which is arranged on the outer peripheral wall of the middle part of the clamping sleeve 12 in a sleeved mode and is positioned between the screwing ring 17 and the outer wall of the incision. That is, the present solution provides a hemostatic felt 18 as a hemostatic member when clamping the inner and outer walls of the incision to minimize bleeding. Of course, in order to provide a cushioning effect for the compression of the inner and outer walls of the incision, a spacer may be provided between the tightening ring 17 and the hemostatic felt 18, which is externally fitted to the middle portion of the clamping sleeve 12.
Further, as shown in fig. 1, the first end surface of the locking sleeve 12 is provided with a hook 12a1 for abutting engagement with the first end surface of the sheath tube 9. As shown in fig. 1, a hook 12a1 for abutting and matching with the first end surface of the sheath tube 9 is disposed at a first end (bottom end) of the first elastic card 12a near the great blood vessel, that is, the first end surface (i.e., lower end surface) of the sheath tube 9 can abut against the hook 12a1 of the first elastic card 12a. That is, the hook 12a1 is used as a lap joint structure in the scheme, so that the sheath tube 9 can drive the clamping sleeve 12 to synchronously descend into the notch.
Still further, as shown in fig. 10, a chamfer 9a is provided between the first end face and the outer peripheral wall of the sheath tube 9;
as shown in fig. 1, the distal end of the hook portion of the hook 12a1 is provided with a slope 12a11, and is located on the extension surface of the chamfer 9 a. That is, the inclined surface 12a11 of the hook end of the hook 12a1 is positioned on the extension surface of the chamfer 9a of the sheath tube 9 facing the large blood vessel, so that the first end surface of the sheath tube 9 and the hook end of the hook 12a1 form a conical surface, thereby facilitating the better penetration of the sheath tube 9 and the clamping sleeve 12 into the incision.
In this scheme, the cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit provided by the embodiment of the utility model further comprises:
and the sleeve locking mechanism is arranged on the cylinder body 8 and used for locking and clamping the sleeve 12 to fix the sleeve when the sheath cylinder 9 is withdrawn from the notch. Namely, the sleeve locking mechanism is adopted in the scheme, so that locking and fixing of the clamping sleeve 12 penetrating into the notch can be realized, the sheath tube 9 can be withdrawn from the notch relative to the clamping sleeve 12, and the clamping mechanism (the first elastic card 12a or the second elastic card 12 b) of the clamping sleeve 12 can be smoothly separated and unfolded.
Specifically, as shown in fig. 10, the first end of the sheath tube 9 is provided with an avoiding port; wherein the avoidance opening is an avoidance through hole;
the sleeve locking mechanism includes:
and the third locking screw 13 is in threaded fit with the wall of the barrel 8 in the radial direction and is used for pressing the outer wall of the clamping sleeve 12 through the avoiding opening when the sheath barrel 9 is withdrawn from the incision. Namely, the scheme realizes the locking and fixing of the clamping sleeve 12 in a radial screwing-in and pressing mode, and the mode has the characteristics of simple structure, convenience and reliability in locking and the like.
Further, as shown in fig. 10, the avoidance port is a long-strip avoidance port arranged along the axial direction of the sheath tube 9;
the withdrawal limit position of the long strip avoidance port, which is close to the first end of the large blood vessel (namely, the reset limit position (initial position) of the sheath tube 9 and the initial position of the clamping sleeve 12) is aligned with the position of the third locking screw 13, and the detection limit position of the second end of the large blood vessel, which is far away from the large blood vessel (namely, the lower probe limit position of the sheath tube 9 and the unfolding position of the clamping sleeve 12), is aligned with the position of the third locking screw 13. The first end of the strip avoidance port is the bottom of the strip avoidance port in fig. 10, and the second end of the strip avoidance port is the top of the strip avoidance port in fig. 10. That is, the upper stroke limit position (initial position) of the bottom of the strip avoiding port is aligned with the position of the third locking screw 13, and the lower stroke limit position (lower feeler limit position) of the top of the strip avoiding port is aligned with the position of the third locking screw 13. The design is so designed that the third locking screw 13 can lock and fix the clamping sleeve 12 at the initial position or the unfolding position respectively, and especially lock and fix the clamping sleeve 12 at the initial position, so that the clamping sleeve 12 can be prevented from moving downwards when the cutter presses down to cut the vascular wall.
Still further, as shown in fig. 10, the long-strip avoiding opening is a long-strip avoiding opening 9b, and penetrates through the first end face of the sheath tube 9. The design of this scheme is not only convenient for the processing manufacturing of rectangular mouthful of dodging, but also the assembly of sheath section of thick bamboo 9 of being convenient for. In addition, as shown in fig. 1 or fig. 3, the number of the third locking screws 13 in the present embodiment is two, and the third locking screws are distributed on two sides of the cylinder 8; in this regard, the number of the strip-shaped avoidance openings 9b of the sheath tube 9 is two, and the two strip-shaped avoidance openings are aligned with the two third locking screws 13 one by one.
In order to further optimize the technical scheme, the cutter comprises a rotary cutter (rotary cutter cylinder cutter) or a straight cutter (straight cutter cylinder cutter). The rotary cutting tool of this scheme adopts current rotary cutting tool, as shown in fig. 1, fig. 4 to fig. 7, and include: the spring pressing plate fixing bolt 2, the first locking screw 3 (as a rotary cutter locking mechanism), the needle return spring 4, the rotary cutter head connecting device 5 (as a rotary cutter operating head), the rotary cutter head 14 (i.e. a barrel cutter), the needle 15 (i.e. a rod cutter) and the like, and the connection relation of the structural components and the working principle thereof can be shown by referring to fig. 1, and the description is omitted here. Wherein, as shown in fig. 4 and 5, the tip (i.e., bottom) of needle 15 is provided with a cross-shaped arrow 15a to facilitate better insertion of needle 15 into a large blood vessel.
Similarly, the straight cutting tool according to the present embodiment also adopts a conventional straight cutting tool, as shown in fig. 3, 8 and 9, and includes: the cutter bar handle 20 (as a straight cutting tool operating head), the fourth locking screw 21 (as a straight cutting tool locking mechanism), the cutter bar 22, the cutting edge 23, the puncture needle 24, the cutter head 25, and the like, and the connection relationship and the working principle of the structural components thereof can be shown by referring to fig. 3, and are not repeated herein.
In addition, as shown in fig. 1, the present embodiment further includes two handles 10, which are respectively disposed on two outer walls of the middle portion of the cylinder 8 in the radial direction. In addition, as shown in fig. 1, the present solution further includes a first end protection cap 16 and a second end protection cap 1, where the first end protection cap 16 is detachably mounted (screwed) on the first end of the cylinder 8 near the great vessel, and the second end protection cap 1 is detachably mounted (screwed) on the second end of the cylinder 8 near the great vessel. As shown in fig. 1, the first end protecting cap 16 is detachably mounted on the bottom of the barrel 8, and the second end protecting cap 1 is detachably mounted on the top of the barrel 8 near the large blood vessel.
In addition, since the cutter of the surgical kit according to the present embodiment may be a rotary cutter or a straight cutter, the following description will be made on the use process of the two surgical kits, respectively, in order to better understand the use process of the rotary-cut surgical kit or the straight-cut surgical kit.
As shown in fig. 1, the rotary-cut surgical kit (including the first elastic card 12 a) provided in this embodiment is described as follows:
1. opening the upper and lower end caps (i.e., the first end cap 16 and the second end cap 1), exposing the cutter head, and inserting the needle 15 into the vessel wall to be perforated;
2. opening the first locking screw 3, pressing down on the spring pressing plate fixing bolt 2, enabling the cross arrow 15a of the needle 15 to penetrate through the vascular wall, and rotating the needle 15 after penetrating so that the cross arrow 15a of the needle is misplaced against the vascular wall to be resected;
3. the rotary cutter head connecting device 5 is rotated and pressed down to drive the rotary cutter head 14 to rotationally cut the blood vessel wall, and the blood vessel wall is pulled upwards into the clamping sleeve 12 after being cut off;
4. opening the second locking screw 7 and the third locking screw 13, pressing down the sheath cylinder fixing device 6 to enable the sheath cylinder 9 to drive the clamping sleeve 12 to go down, and screwing the third locking screw 13 after an elastic sheet (namely an elastic card) at the lower part of the clamping sleeve 12 reaches a preset position to fix the clamping sleeve 12 and the protection sleeve (namely the cylinder 8);
5. the rotary cutter head connecting device 5 and the sheath tube fixing device 6 are pulled up to expand the spring piece at the lower part of the clamping sleeve 12 upwards to clamp the vessel wall;
6. opening the third locking screw 13, slowly withdrawing the protective sleeve, the sheath tube 9 and the rotary cutter head 14, and clamping the artificial blood vessel 11 by using a hemostatic forceps after the artificial blood vessel 11 leaks out to prevent blood leakage;
7. the gasket, the hemostatic felt ring 18 and the screwing ring 17 are sleeved into the artificial blood vessel in sequence, the screwing ring 17 and the middle part of the clamping sleeve 12 are screwed, so that the hemostatic felt ring 18 props against the outer wall of the blood vessel and forms resultant force with a spring piece which is unfolded in the blood vessel to clamp the blood vessel.
In addition, as shown in fig. 3, the use of the straight-cut surgical kit (including the first elastic card 12 a) provided in this embodiment is as follows:
1. opening the upper and lower end caps (i.e., the first end cap 16 and the second end cap 1), exposing the cutter head, and inserting the lancet 24 into the vessel wall to be perforated;
2. opening the fourth locking screw 21, pushing down against the cutter bar handle 20, cutting the aortic wall by the cutter head downwards, and cutting Cheng Juhua the flap shape;
3. opening the second locking screw 7 and the third locking screw 13, pressing down the sheath cylinder connecting device 6 to enable the sheath cylinder 9 to drive the clamping sleeve 12 to move downwards, closing the third locking screw 13 after a spring piece (namely an elastic card) at the lower part of the clamping sleeve 12 reaches a preset position, and fixing the clamping sleeve 12 and the protection sleeve (namely the cylinder 8);
4. pulling up the knife bar handle 20 and the sheath tube connecting device 6 to expand the spring piece at the lower part of the clamping sleeve 12 and clamp the vessel wall;
5. opening the third locking screw 13, slowly withdrawing the protective sleeve, the sheath tube 9 and the cutter bar 22, and clamping the artificial blood vessel 11 by using a hemostatic forceps after the artificial blood vessel 11 leaks out to prevent blood leakage;
6. the gasket, the hemostatic felt ring 18 and the screwing ring 17 are sleeved into the artificial blood vessel in sequence, the screwing ring 17 and the middle part of the clamping sleeve 12 are screwed, so that the hemostatic felt ring 18 props against the outer wall of the blood vessel and forms resultant force with a spring piece which is unfolded in the blood vessel to clamp the blood vessel.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
1. A cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit, which is characterized by comprising: a cylinder body (8), a sheath cylinder (9), a cutter, a clamping sleeve (12), a clamping mechanism and an artificial blood vessel (11);
the sheath cylinder (9) is slidably sleeved in the cylinder body (8);
the cutter is slidably arranged in the sheath tube (9) and is used for cutting off the vessel wall (19) of the great vessel to form an incision;
the clamping sleeve (12) is sleeved in the sheath tube (9) and is close to the first end part of the large blood vessel, the cutter penetrates through the clamping sleeve (12), the first end part of the clamping sleeve (12) close to the large blood vessel is of a clamping structure capable of being elastically unfolded along the radial direction, or the outer wall of the clamping sleeve is provided with a clamping structure capable of being elastically unfolded along the radial direction;
the artificial blood vessel (11) is arranged in the sheath tube (9) and sleeved outside the second end part of the clamping sleeve (12) far away from the large blood vessel;
the clamping sleeve (12) can be inserted into the notch along with the sheath tube (9) and can also be kept fixed when the sheath tube (9) is withdrawn from the notch, so that the clamping structure can be elastically unfolded along the radial direction to clamp the inner wall of the notch after being separated from the sheath tube (9); the clamping mechanism is used for being sleeved on the middle part of the clamping sleeve (12) after the barrel (8), the sheath barrel (9) and the cutter are removed, and is used for being clamped with the clamping structure in a butt joint mode to clamp the inner wall and the outer wall of the notch.
2. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 1, wherein the outer wall of the first end part of the clamping sleeve (12) is provided with the clamping structure;
the clamping structure comprises:
and the second elastic card (12 b) is arranged on the outer wall of the first end part of the clamping sleeve (12) and can be elastically unfolded along the radial direction of the clamping sleeve (12).
3. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 2, wherein the number of the second elastic cards (12 b) is plural and uniformly distributed along the circumference of the first end of the clamping sleeve (12).
4. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 2, wherein the second elastic card (12 b) is elastically unfolded towards the side far away from the first end surface of the clamping sleeve (12), and the elastic unfolding angle is 30 ° -45 °.
5. The cut macrovascular opening and vascular prosthesis synchronous anastomosis surgical kit of claim 4, wherein the second elastic tab (12 b) is a triangular elastic tab.
6. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 1, wherein the first end of the clamping sleeve (12) is the clamping structure;
the clamping structure comprises:
the elastic clamping sleeve is uniformly arranged in the circumferential direction, the middle part of the clamping sleeve (12) is close to the first end face of the large blood vessel, and the elastic clamping sleeve can be elastically unfolded along the radial direction of the clamping sleeve (12).
7. The cut-type large vessel opening and vascular prosthesis synchronous anastomosis surgical kit of claim 1, wherein the clamping mechanism comprises:
and a screwing ring (17) which is in threaded fit with the outer peripheral wall of the middle part of the clamping sleeve (12) and is used for clamping the inner wall and the outer wall of the notch by the clamping structure.
8. The cut-type large vessel opening and vascular prosthesis synchronous anastomosis surgical kit of claim 7, further comprising:
and the hemostatic felt ring (18) is sleeved on the outer peripheral wall of the middle part of the clamping sleeve (12) and is positioned between the screwing ring (17) and the outer wall of the incision.
9. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 1, wherein the first end surface of the clamping sleeve (12) is provided with a hook (12 a 1) for abutting and matching with the first end surface of the sheath tube (9).
10. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 9, wherein a chamfer (9 a) is arranged between the first end surface of the sheath tube (9) and the peripheral wall;
the tail end of the hook part of the hook (12 a 1) is provided with an inclined surface (12 a 11) and is positioned on the extension surface of the chamfer (9 a).
11. The cut-type large vessel opening and vascular prosthesis synchronous anastomosis surgical kit of claim 1, further comprising:
and the sleeve locking mechanism is arranged on the cylinder body (8) and used for locking the clamping sleeve (12) to fix the clamping sleeve when the sheath cylinder (9) is withdrawn from the notch.
12. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 11, wherein the first end part of the sheath tube (9) is provided with an avoidance port;
the sleeve locking mechanism includes:
and the third locking screw (13) is in threaded fit with the wall of the cylinder body (8) along the radial direction and is used for pressing the outer wall of the clamping sleeve (12) through the avoidance opening when the sheath cylinder (9) is withdrawn from the incision.
13. The cutting type large vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 12, wherein the avoidance port is a long-strip avoidance port arranged along the axial direction of the sheath tube (9);
the withdrawing limit position of the strip avoidance port, which is close to the first end part of the large blood vessel, is aligned with the position of the third locking screw (13), and the penetrating limit position of the second end part, which is far away from the large blood vessel, is aligned with the position of the third locking screw (13).
14. The cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit according to claim 13, wherein the long avoidance opening is a long avoidance opening (9 b) and penetrates through the first end face of the sheath tube (9).
15. The cut-type large vessel opening and vascular prosthesis synchronous anastomosis surgical kit of claim 1, wherein the cutter comprises a rotary cutter or a straight cutter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222613055.2U CN218979113U (en) | 2022-09-30 | 2022-09-30 | Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit |
| PCT/CN2023/121505 WO2024067574A1 (en) | 2022-09-30 | 2023-09-26 | Surgical kit for formation of cutting-type large blood vessel incision and synchronous anastomosis of artificial blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222613055.2U CN218979113U (en) | 2022-09-30 | 2022-09-30 | Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218979113U true CN218979113U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222613055.2U Active CN218979113U (en) | 2022-09-30 | 2022-09-30 | Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218979113U (en) |
| WO (1) | WO2024067574A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067574A1 (en) * | 2022-09-30 | 2024-04-04 | 刘晓程 | Surgical kit for formation of cutting-type large blood vessel incision and synchronous anastomosis of artificial blood vessel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673088B1 (en) * | 1999-05-18 | 2004-01-06 | Cardica, Inc. | Tissue punch |
| CN102405022B (en) * | 2009-03-14 | 2015-02-04 | 瓦索斯蒂奇股份有限公司 | Vessel access and closure device |
| CN204636451U (en) * | 2015-03-12 | 2015-09-16 | 葛益飞 | Arteriovenous is cut and stapling apparatus |
| CN213850866U (en) * | 2020-11-12 | 2021-08-03 | 江苏臣诺医疗器械有限公司 | Linear cutting anastomat |
| CN115969472A (en) * | 2021-10-15 | 2023-04-18 | 刘晓程 | Combined instrument for connecting blood vessels |
| CN115969473A (en) * | 2021-10-15 | 2023-04-18 | 刘晓程 | Combined instrument for connecting blood vessels |
| CN218979113U (en) * | 2022-09-30 | 2023-05-09 | 刘晓程 | Cutting type large blood vessel opening and artificial blood vessel synchronous anastomosis surgical kit |
-
2022
- 2022-09-30 CN CN202222613055.2U patent/CN218979113U/en active Active
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2023
- 2023-09-26 WO PCT/CN2023/121505 patent/WO2024067574A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067574A1 (en) * | 2022-09-30 | 2024-04-04 | 刘晓程 | Surgical kit for formation of cutting-type large blood vessel incision and synchronous anastomosis of artificial blood vessel |
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| Publication number | Publication date |
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| WO2024067574A1 (en) | 2024-04-04 |
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