CN107693083B - Adjustable vascular occlusion device - Google Patents
Adjustable vascular occlusion device Download PDFInfo
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- CN107693083B CN107693083B CN201711044326.4A CN201711044326A CN107693083B CN 107693083 B CN107693083 B CN 107693083B CN 201711044326 A CN201711044326 A CN 201711044326A CN 107693083 B CN107693083 B CN 107693083B
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- Prior art keywords
- clamping
- blood vessel
- vascular occlusion
- occlusion device
- clamping sleeve
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- 206010053648 Vascular occlusion Diseases 0.000 title claims abstract description 34
- 208000021331 vascular occlusion disease Diseases 0.000 title claims abstract description 34
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 50
- 230000000149 penetrating effect Effects 0.000 claims description 32
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims 2
- 210000001519 tissue Anatomy 0.000 description 22
- 210000002254 renal artery Anatomy 0.000 description 7
- 230000017531 blood circulation Effects 0.000 description 4
- 230000036770 blood supply Effects 0.000 description 4
- 238000000338 in vitro Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000017074 necrotic cell death Effects 0.000 description 3
- 230000000302 ischemic effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000031104 Arterial Occlusive disease Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 208000021328 arterial occlusion Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 210000000028 corpus adiposum pararenale Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 210000003734 kidney Anatomy 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
- 238000013059 nephrectomy Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
- A61B17/1227—Spring clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The application provides an adjustable vascular occlusion device, which comprises a clamping body and a clamping sleeve member, wherein the clamping body is provided with a plurality of first positioning parts, the clamping sleeve member is provided with a second positioning part, when the clamping body is clamped on a blood vessel or tissues around the blood vessel, the clamping sleeve member can be sleeved on the clamping body, and the second positioning part is matched with different first positioning parts so as to adjust the relative positions of the clamping sleeve member and the clamping parts, thereby adjusting the clamping force of the clamping parts.
Description
Technical Field
The embodiment of the application relates to a medical instrument, in particular to an adjustable vascular occlusion device.
Background
After separation of the gap between the renal parenchyma and the perirenal fat, the conventional laparoscopic nephrectomy procedure is performed to separate the adipose tissue at the hilum of the kidney, then the renal artery is found and positioned along with the pulsation of the renal artery, and after the vascular sheath is further opened, tools such as an ultrasonic knife, a separation clamp, a right angle clamp and the like are used to sufficiently free the renal artery, and then a vascular occlusion device is placed.
However, since the small blood vessels around the renal arteries are abundant, the free arteries need to be subjected to delicate procedures, which are not intended to extend the procedure time and increase the risk of bleeding.
Furthermore, the clamping force of the current occluder for clamping blood vessels cannot be adjusted, if the blood flow is large during operation, one or more occluders need to be added, and the addition of an arterial occlusion clip needs to free longer renal arteries, so that a larger space is provided, which leads to increased surgical risk and difficult operation.
In view of the above, it is an object of the present application to provide a vascular occlusion clip for overcoming the various problems in the prior art.
Disclosure of Invention
In view of the above problems, a primary object of the present application is to provide an adjustable vascular occlusion device that can be used to hold a blood vessel or simultaneously hold the blood vessel and surrounding tissue, reducing the time taken to free the blood vessel, thereby reducing the surgical time and reducing the surgical risk.
Another object of the present application is to provide an adjustable vascular occlusion device, which can adjust the clamping force applied by the vascular occlusion device as required, and block the blood vessel to a trace amount of blood flow, so that the tissue is not excessively bloodletting during the excision, and the proper blood supply is ensured, and the thermal ischemic necrosis of the tissue is prevented.
It is still another object of the present application to provide an adjustable vascular occlusion device that can adjust the clamping force of vascular occlusion clips through a push-pull device in vitro without repeated access to surgical instruments and without increasing the number of vascular occlusion clips used.
An embodiment of the application provides an adjustable vascular occlusion device for clamping a blood vessel or the blood vessel and surrounding tissues thereof, which is characterized by comprising a clamping body and a clamping sleeve, wherein the clamping body comprises a clamping part for clamping the blood vessel or the blood vessel and surrounding tissues thereof, two opposite sides of the clamping part are respectively provided with a first surface and a second surface, and at least one of the first surface and the second surface is provided with a plurality of first positioning parts; and an actuating portion connected to the clamping portion and having an elastic member to provide an elastic restoring force, wherein the clamping portion is in a pre-clamping state when the actuating portion is stressed, and the clamping portion is in a clamping state to clamp the blood vessel or the blood vessel and surrounding tissues by the elastic restoring force provided by the elastic member when the stress of the clamping portion is released; the clamping sleeve is provided with a second positioning part; when the clamping part clamps the blood vessel or the blood vessel and the surrounding tissues, the clamping sleeve member can be sleeved on the clamping part along the first surface and the second surface of the clamping part, the clamping sleeve member is positioned on the clamping part by matching the second positioning part with any one of the first positioning parts, and the clamping force applied by the clamping part is further adjusted by matching the second positioning part with different first positioning parts.
Optionally, in an embodiment of the present application, the clamping sleeve has a first holding portion and a second holding portion, and a length of the first holding portion is greater than a length of the second holding portion.
Optionally, in an embodiment of the present application, the clamping body further has a first penetrating portion disposed on one of the first surface or the second surface, and the first penetrating portion has a first penetrating hole, so that the first sleeve portion is penetrated in the first penetrating hole and moves axially relative to the first penetrating hole, so as to adjust a relative position of the clamping sleeve and the clamping portion.
Optionally, in an embodiment of the present application, the first through hole is further used to limit circumferential rotation of the clamping sleeve relative to the clamping body.
Optionally, in an embodiment of the present application, the actuating portion further has a coupling portion for coupling a force applicator to apply a force to the actuating portion through the force applicator.
Optionally, in an embodiment of the present application, a push-pull rod is further included, and is fixedly connected to the clamping sleeve, and the push-pull member is applied with a force, so that the push-pull rod drives the clamping sleeve to move relative to the clamping body.
Optionally, in an embodiment of the present application, the actuating portion further has a second penetrating portion, and the second penetrating portion has a second penetrating hole, so that the push-pull rod is penetrated in the second penetrating hole.
Optionally, in an embodiment of the present application, the push-pull rod has an outer sheath fixedly penetrating into the second penetrating hole; the proximal end of the inner core is sleeved in the outer sheath, and the distal end of the inner core is fixedly connected with the clamping sleeve; and the handle is fixedly connected with the proximal end of the inner core and exposed out of the surface of the outer sheath, and the inner core moves relative to the outer sheath and drives the clamping sleeve member to move relative to the clamping body by applying an acting force to the handle.
Optionally, in an embodiment of the present application, the clamping portion includes a first clamping arm and a second clamping arm, where the first clamping arm and the second clamping arm cooperate with each other to clamp the blood vessel or the tissue around the blood vessel, and the first surface is an outer surface of the first clamping arm, and the second surface is an outer surface of the second clamping arm.
Optionally, in an embodiment of the present application, the actuating portion includes a first actuating unit and a second actuating unit, the first clamping arm extends from one end of the first actuating unit, the second clamping arm extends from one end of the second clamping arm, and the elastic member connects the first actuating unit and the second actuating unit respectively.
As can be seen from the above technical solutions, the clamping body of the vascular occlusion device of the present application can be used to clamp a blood vessel or clamp the blood vessel and surrounding tissues without releasing the blood vessel, so as to effectively reduce the operation time and reduce the operation risk.
In addition, the clamping force applied by the clamping body is adjusted through the clamping sleeve member, so that blood vessels are blocked to trace blood flow, and when the tissue is resected, the blood supply is not greatly increased, the proper blood supply is ensured, the tissue is prevented from thermally ischemic necrosis, and the operation safety is ensured.
In addition, through setting up the push-and-pull rod in order to adjust the relative position between clamping external member and the centre gripping body in vitro, need not to pass in and out surgical instruments repeatedly, also need not to increase blocking the quantity of using of clamp to convenient operation.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 below, and it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIGS. 1A-1F are schematic views showing various examples of a first embodiment of an adjustable vascular occlusion device of the present application;
FIGS. 2A-2D are schematic views showing various examples of a second embodiment of an adjustable vascular occlusion device of the present application; and
Fig. 3 is a schematic view of another embodiment of the clamping kit of the present application.
Element labels
1. Adjustable vascular occlusion device
11. Clamping body
111. Clamping part
1111A first surface
1112A first positioning portion
1113A first arm
1111B second surface
1112B first positioning portion
1113B second arm
112. Actuating part
1121. Elastic piece
1122. Joint portion
1123. A second penetrating part
11231. Second through hole
1124A first actuating unit
1124B second actuation unit
113. A first penetrating part
1131. First through hole
12. Clamping sleeve
121. Second positioning part
122A first holding part (fixed arm)
122B second holding part (non-fixed arm)
1221. Boss
1222. Groove
13. Push-pull rod
131. Outer sheath
132. Inner core
133. Handle
2. Force applicator
21. Positioning part
22. Operation part
Detailed Description
In order to better understand the technical solutions in the embodiments of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the present application, shall fall within the scope of protection of the embodiments of the present application.
Fig. 1A to 1F are views showing various examples of a first embodiment of an adjustable vascular occlusion device of the present application. The adjustable vascular occlusion device 1 of the present application may be used to hold blood vessels, and may also be used to hold blood vessels and their surrounding tissue simultaneously, and this design may eliminate the need for the physician to completely free and expose the renal artery blood vessels during surgery, thus reducing the time it takes to separate the tissue from the free blood vessels.
As shown in fig. 1A, a schematic diagram showing the overall structure of the adjustable vascular occlusion device 1 of the present application is shown. As shown, the adjustable vascular occlusion device 1 of the present application mainly comprises a clamping body 11 and a clamping set 12.
Referring to fig. 1B and 1C, a perspective view and a side view of a clamping body 11 according to a first embodiment of the application are shown. As shown, the clamping body 11 has a clamping portion 111 and an actuating portion 112, the clamping portion 111 being configured to provide a clamping action, such as clamping on a blood vessel or tissue surrounding the blood vessel. Furthermore, the clamping portion 111 has a first surface 1111a and a second surface 1111b on opposite sides thereof, and a plurality of first positioning portions 1112 are disposed on at least one of the first surface 1111a and the second surface 1111 b. In this embodiment, the clamping portion 111 includes a first clamping arm 1113a and a second clamping arm 1113b, where the first clamping arm 1113a and the second clamping arm 1113b cooperate to clamp the blood vessel or the surrounding tissue, the first surface 1111a is an outer surface of the first clamping arm 1113a, the second surface 1111b is an outer surface of the second clamping arm (1113 b), specifically, the first clamping arm 1113a and the second clamping arm 1113b each have a first surface and a second surface opposite to the first surface, the first surface refers to a contact surface of the first clamping arm 1113a and the second clamping arm 1113b, that is, two surfaces contacting the clamped object in the clamped state, and the first surface 1111a and the second surface 1111b refer to second surfaces (i.e. outer surfaces) of the first clamping arm 1113a and the second clamping arm 1113 b.
A plurality of first positioning portions 1112 are disposed on at least one of the first surface 1111a or the second surface 1111 b. In the present embodiment, as shown in fig. 1C, a plurality of first positioning portions 1112a are disposed on the first surface 1111a, and a plurality of first positioning portions 1112b are also disposed on the second surface 1111 b. The first positioning portion 1112 may be continuously provided on the first surface 1111a or the second surface 1111b to form a wavy cross grain.
The actuating portion 112 is connected to the clamping portion 111, and the actuating portion 112 further has an elastic member 1121 for providing an elastic restoring force, wherein when the actuating portion 112 is stressed, the clamping portion 111 is in a pre-clamping state, and when the stress of the clamping portion 111 is released, the clamping portion 111 can be in a clamping state by the elastic restoring force provided by the elastic member 1121, so as to clamp the blood vessel or the blood vessel and surrounding tissues.
In the present embodiment, the actuating portion 112 includes a first actuating unit 1124a and a second actuating unit 1124b, wherein the first clamping arm 1113a extends from one end of the first actuating unit 1124a, the second clamping arm 1113b extends from one end of the second clamping arm 1113b, and the elastic member 1121 is respectively connected to the first actuating unit 1124a and the second actuating unit 1124b. In the present embodiment, the elastic member 1121 is connected to the ends of the first actuating unit 1124a and the second actuating unit 1124b, which are far away from the first clamping arm 1113a and the second clamping arm 1113b, but not limited thereto. In addition, the elastic member 1121 may be provided in the form of a C-shaped or torsion spring, but not limited thereto, other structures of the elastic member 1121 may be suitable.
In another embodiment, the actuating portion 112 further has a coupling portion 1122 (shown in fig. 1B) disposed on the first actuating unit 1124a and the second actuating unit 1124B, respectively, for coupling a force applicator 2. Referring to fig. 1E, by sleeving the positioning portion 21 of the force applicator 2 on the coupling portion 1122 of the actuating portion 112, the user can apply a force to the actuating portion 112 through the operating portion 22, so that the first actuating unit 1124a and the second actuating unit 1124b are stressed, and the clamping portion 111 is in a pre-clamping state. Furthermore, the positioning portion 21 of the force applicator 2 can rotate relative to the coupling portion 1122 of the actuating portion 112 to adjust the angle between the force applicator 2 and the clamping body 11, so as to facilitate the user to find the optimal position for operation.
Further, as shown in fig. 1E, since the force applicator 2 has an elongated operation portion, the user can operate the grip body 11 outside the patient's body through the force applicator 2.
Please refer to fig. 1D, which is a side view of a clamping assembly 12 according to a first embodiment of the present application. As shown in the drawing, the clamping set 12 has a second positioning portion 121, wherein when the clamping set 111 clamps on a blood vessel or a tissue around the blood vessel, the clamping set 12 can be sleeved on the clamping set 111 along a first surface 1111a and a second surface 1111b of the clamping set 111, and the clamping set 12 is positioned on the clamping set 111 by matching the second positioning portion 121 of the clamping set 12 with any one of a plurality of first positioning portions 1112 of the clamping set 111, wherein the relative positions of the clamping set 12 and the clamping set 111 can be adjusted by matching the second positioning portion 121 with different first positioning portions 1112.
Referring to fig. 1A, in the present embodiment, when the second positioning portion 121 is positioned on the first positioning portion 1112 of the clamping portion 111 further away from the actuating portion 112, the clamping force applied by the clamping portion 111 under the action of the clamping set 12 is smaller; on the contrary, when the second positioning portion 121 is positioned on the clamping portion 111 closer to the first positioning portion 1112 of the actuating portion 112, the clamping force applied by the clamping portion 111 is smaller, so that the user can adjust the clamping force of the clamping portion 111 on the blood vessel or the tissue around the blood vessel by adjusting the relative positions of the clamping sleeve 12 and the clamping portion 111 according to the actual requirement.
In this embodiment, the second positioning portion 121 may be designed into a cross-grain shape matching with the first positioning portion 1112. The first positioning portion 1112 and the second positioning portion 121 are staggered with respect to each other, so that they can slide or lock relative to each other. In addition, the clamping sleeve 12 may be made of a deformable material, and the clamping sleeve 12 may be designed as a clevis, a torsion spring, or an elastic tab (as shown in fig. 3).
With continued reference to fig. 1D, in one embodiment, the clamping sleeve 12 has a first holding portion 122a and a second holding portion 122b, and the length of the first holding portion 122a is greater than the length of the second holding portion 122 b. Referring to fig. 1B, a first penetrating portion 113 is disposed on the clamping body 11 and can be disposed on one of the first surface 1111A and the second surface 1111B, in this embodiment, the first penetrating portion 113 is a boss disposed on the first surface 1111A near to one end of the actuating portion 112, and a first penetrating hole 1131 is disposed on the first penetrating portion 113, so that the longer first holding portion 122a of the clamping member 12 is used as a fixing arm and is penetrated into the first penetrating hole 1131 and moves axially relative to the first penetrating hole 1131 (as shown in fig. 1A), thereby adjusting the relative positions of the clamping member 12 and the clamping portion 111, and the clamping member 12 can be connected to the clamping body 11 through the first penetrating portion 113 for a user to operate conveniently.
In this embodiment, the first through hole 1131 may be configured to be in a non-circular shape such as a rectangle, triangle, oval, etc., so that the first holding portion 122a is configured to be capable of limiting the circumferential rotation of the clamping sleeve 12 relative to the clamping body 11 after being inserted into the first through hole 1131, that is, only allowing the clamping sleeve 12 to move along the axial direction of the clamping body 11, but not capable of performing circumferential rotation relative to the clamping body 11, so that the clamping sleeve 12 and the clamping body 11 can maintain mutually orthogonal positions, and therefore, when the user operates the apparatus, the user only needs to push and pull the clamping sleeve 12 back and forth, without rotating the clamping sleeve 12 to adjust the position, so as to facilitate operation.
Referring to fig. 1F in combination, in another embodiment of the present application, the adjustable vascular occlusion device 1 further comprises a push-pull rod 13 fixedly connected to the clamping member 12, wherein the push-pull rod 13 drives the clamping member 12 to move relative to the clamping body 11 by applying a force to the push-pull member 13, so that a user can operate the clamping member 12 outside the patient through the push-pull rod 13.
Referring to fig. 1A and fig. 1B in conjunction, in an embodiment, the actuating portion 112 of the clamping body 11 further includes a second penetrating portion 1123, and the second penetrating portion 1123 further includes a second penetrating hole 11231 for the push-pull rod to penetrate through. The relative position of the push-pull rod 13 and the clamping sleeve 12 can be fixed to facilitate the indirect operation of the clamping sleeve 12 through the push-pull rod 13.
Specifically, as shown in FIG. 1E, the push-pull rod 13 also has an outer sheath 131, an inner core 132, and a handle 133. The outer sheath 131 may be fixedly disposed in the second through hole 11231, and the outer pin 131 may not rotate circumferentially relative to the second through hole 11231, thereby limiting the push-pull rod 13 to only move axially relative to the second through hole 11231. The proximal end of the inner core 132 (i.e., the end closer to the operator, i.e., the end farther from the clamping set 12) is sleeved in the outer sheath 131, while the distal end of the inner core 132 is fixedly connected to the clamping set 12, such that the push-pull rod 13 is fixedly connected to the clamping set 12. The handle 133 is fixedly connected to the proximal end of the inner core 132 and is exposed (protruded) from the surface of the outer sheath 131, so that the user can apply a force to the handle 133 to move the inner core 132 inside the outer sheath 131 relative to the outer sheath 131 and drive the clamping sleeve 12 to move relative to the clamping body 11.
In summary, when using the adjustable vascular occlusion device 1 of the present application, a user may first send the adjustable vascular occlusion device 1 into a patient by using the force applicator 2, withdraw the force applicator 2 after adjusting the angle and clamping the clamping body 11 on the blood vessel or the tissue around the blood vessel, and then operate the clamping sleeve 12 and the clamping body 11 outside the patient by the push-pull rod 13 to adjust the relative position between the clamping sleeve and the clamping body 11, thereby achieving the adjustment of the moment arm.
Fig. 2A to 2D are views showing various examples of a second embodiment of the adjustable vascular occlusion device of the present application.
The constituent parts of the adjustable vascular occlusion device 1 of the second embodiment of the present application are basically the same as those of the first embodiment. In the present embodiment, the front end of the second holding portion 122B (non-fixing arm) of the clamping set 12 is provided with a boss 1221 (as shown in fig. 2B), and the second positioning portion 121 is disposed on the boss 1221, so as to increase the contact area between the second positioning portion 121 and the first positioning portion 1112, so that the clamping set 12 is more firmly positioned on the clamping body 11. Furthermore, the boss 1221 further has a groove 1222, and a distal portion of the inner core 132 of the push-pull rod 13 may be engaged (e.g., threaded, interference fit) with the groove 1222 to fixedly couple the inner core 132 of the push-pull rod 13 with the second gripping portion 122b of the clamping sleeve 12. In addition, referring to fig. 2C, the second penetrating portion 1123 may be disposed at a position of the second actuating unit 1124b near the combining portion 1122, so that the inner core 132 of the push-pull rod 13 is penetrated into the second penetrating hole 11231, and the boss 1221 of the second holding portion 122b (the non-fixing arm) of the clamping set 12 is pushed and pulled by the inner core 132 of the push-pull rod 13 to adjust the clamping force applied by the clamping portion 111 (as shown in fig. 2D).
In summary, the adjustable vascular occlusion device provided by the application does not need to completely free or expose the renal artery blood vessel, and only needs to separate the blood vessel, the blood vessel and the surrounding tissues can be clamped together by the clamping body, so that the time spent by the blood vessel free can be saved, the operation efficiency can be improved, and the operation risk can be reduced.
Furthermore, the clamping force applied by the clamping body can be adjusted through the clamping sleeve member, blood vessels are blocked to trace blood flow, and when the tissue is resected, the blood is not greatly discharged, the proper blood supply is ensured, the thermal ischemia necrosis of the tissue is prevented, and the operation safety is ensured.
In addition, through setting up the push-and-pull rod, can adjust the relative position between clamping external member and the centre gripping body in vitro, and need not to increase the quantity of using that blocks the clamp to convenient operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present application, and are not limited thereto; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. An adjustable vascular occlusion device for clamping a blood vessel or tissue surrounding said blood vessel, comprising:
Clamping body, it includes:
the clamping part is used for clamping the blood vessel or the blood vessel and surrounding tissues, the two opposite sides of the clamping part are respectively provided with a first surface and a second surface, and a plurality of first positioning parts are arranged on at least one of the first surface and the second surface; and
An actuating portion connected to the clamping portion and having an elastic member to provide an elastic restoring force, wherein the clamping portion is in a pre-clamping state when the actuating portion is stressed, and the clamping portion is in a clamping state to clamp the blood vessel or the blood vessel and surrounding tissues by the elastic restoring force provided by the elastic member when the stress of the clamping portion is released; and
A clamping sleeve having a second positioning portion; wherein,
When the clamping part clamps the blood vessel or the blood vessel and the surrounding tissues, the clamping sleeve member can be sleeved on the clamping part along the first surface and the second surface of the clamping part, the clamping sleeve member is positioned on the clamping part by matching the second positioning part with any one of a plurality of first positioning parts, the clamping sleeve member is adjusted by matching the second positioning part with different first positioning parts, the relative position of the clamping sleeve member and the clamping part is adjusted, and the clamping force exerted by the clamping part is adjusted,
The clamping sleeve is provided with a first sleeving part and a second sleeving part, the length of the first sleeving part is larger than that of the second sleeving part, the clamping body is further provided with a first penetrating part which is arranged on one of the first surface or the second surface, the first penetrating part is provided with a first penetrating hole, the first sleeving part is penetrated in the first penetrating hole and moves axially relative to the first penetrating hole so as to adjust the relative position of the clamping sleeve and the clamping part, the clamping sleeve further comprises a push-pull rod which is fixedly connected with the clamping sleeve, and the push-pull rod applies a force to drive the clamping sleeve to move relative to the clamping body.
2. The adjustable vascular occlusion device of claim 1, wherein the first bore is further configured to limit circumferential rotation of the clamping sleeve relative to the clamping body.
3. The adjustable vascular occlusion device of claim 1, wherein the actuation portion further has a coupling portion for coupling a force applicator to apply a force to the actuation portion via the force applicator.
4. The adjustable vascular occlusion device of claim 1, wherein the actuation portion further has a second penetration portion having a second penetration aperture for the push-pull rod to penetrate into.
5. The adjustable vascular occlusion device of claim 4, wherein said push-pull rod has:
An outer sheath fixedly penetrating into the second penetrating hole;
The proximal end of the inner core is sleeved in the outer sheath, and the distal end of the inner core is fixedly connected with the clamping sleeve; and
The handle is fixedly connected with the proximal end of the inner core and exposed out of the surface of the outer sheath, and the inner core moves relative to the outer sheath and drives the clamping sleeve member to move relative to the clamping body by applying an acting force to the handle.
6. The adjustable vascular occlusion device of claim 1, wherein the clamping portion includes a first clamping arm and a second clamping arm that cooperate to clamp the blood vessel or tissue surrounding the blood vessel, and wherein the first surface is an outer surface of the first clamping arm and the second surface is an outer surface of the second clamping arm.
7. The adjustable vascular occlusion device of claim 6, wherein the actuation portion includes a first actuation unit and a second actuation unit, the first clip arm extending from one end of the first actuation unit and the second clip arm extending from one end of the second clip arm, the resilient member connecting the first actuation unit and the second actuation unit, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044326.4A CN107693083B (en) | 2017-10-31 | 2017-10-31 | Adjustable vascular occlusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044326.4A CN107693083B (en) | 2017-10-31 | 2017-10-31 | Adjustable vascular occlusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107693083A CN107693083A (en) | 2018-02-16 |
| CN107693083B true CN107693083B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711044326.4A Active CN107693083B (en) | 2017-10-31 | 2017-10-31 | Adjustable vascular occlusion device |
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| CN (1) | CN107693083B (en) |
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| JPH1176248A (en) * | 1997-09-11 | 1999-03-23 | Terumo Corp | Bloodstream controlling apparatus |
| JP3161749U (en) * | 2010-05-28 | 2010-08-05 | 有限会社河島製鋏所 | Hemostatic forceps |
| TW201404352A (en) * | 2012-07-20 | 2014-02-01 | Univ Nat Cheng Kung | Blood flow controller of intracavity |
| CN103690218A (en) * | 2013-12-11 | 2014-04-02 | 中国人民解放军第二军医大学 | Suspension control hepatic blood flow blocking device under endoscope |
| JP2016165427A (en) * | 2015-03-10 | 2016-09-15 | 株式会社湊川金属テストピース製作所 | Vascular clamp |
| CN105997193A (en) * | 2016-07-27 | 2016-10-12 | 中国人民解放军第三军医大学第二附属医院 | Medical spring forceps |
| CN208511119U (en) * | 2017-10-31 | 2019-02-19 | 中国人民解放军第二军医大学 | Adjustable blood vessel blocking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE553707T1 (en) * | 2009-12-17 | 2012-05-15 | Cardiomedical Gmbh | SURGICAL INSTRUMENT |
| WO2012048387A1 (en) * | 2010-10-15 | 2012-04-19 | Surgiclamp Pty Ltd | Surgical clamping devices and tools for use therewith |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176248A (en) * | 1997-09-11 | 1999-03-23 | Terumo Corp | Bloodstream controlling apparatus |
| JP3161749U (en) * | 2010-05-28 | 2010-08-05 | 有限会社河島製鋏所 | Hemostatic forceps |
| TW201404352A (en) * | 2012-07-20 | 2014-02-01 | Univ Nat Cheng Kung | Blood flow controller of intracavity |
| CN103690218A (en) * | 2013-12-11 | 2014-04-02 | 中国人民解放军第二军医大学 | Suspension control hepatic blood flow blocking device under endoscope |
| JP2016165427A (en) * | 2015-03-10 | 2016-09-15 | 株式会社湊川金属テストピース製作所 | Vascular clamp |
| CN105997193A (en) * | 2016-07-27 | 2016-10-12 | 中国人民解放军第三军医大学第二附属医院 | Medical spring forceps |
| CN208511119U (en) * | 2017-10-31 | 2019-02-19 | 中国人民解放军第二军医大学 | Adjustable blood vessel blocking device |
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| CN107693083A (en) | 2018-02-16 |
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