Hemostasis device for tumor surgery
By using a hemostat for tumor surgery with sliding adjustment handle and clamping mechanism in tumor surgery, the problems of vascular wall tear and torsion are solved, and stable anastomosis and low thrombosis rate of blood vessels are achieved.
Patent Information
- Application Number
- CN202411670877.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing Coupler vascular staplers are prone to cause vascular wall tear and local torsion during tumor surgery, resulting in problems of vascular leakage and thrombosis.
A hemostat device for oncology surgery is designed, using a sliding adjustment handle and a clamping mechanism, and fixing the anastomosis sleeve through the first and second clamping mechanisms to prevent the coupling needle from tearing the blood vessel wall, and through the limiting baffle and extrusion. The push rod prevents the stagger sleeve from rotating during alignment.
Effectively prevent vascular wall tear and local twisting, ensure good blood vessel anastomosis, and reduce the incidence of thrombosis.
Smart Images
Figure CN119214719A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical instruments, and in particular to a hemostatic device for tumor surgery. Background Art
[0002] In the process of resecting solid tumors in clinical tumor surgery, it is often necessary to cut off some arterial or venous blood vessels. After the tumor tissue is completely removed, the cut blood vessels need to be anastomosed to achieve the effect of surgical hemostasis. There are two ways of vascular anastomosis: artificial anastomosis and auxiliary device-assisted anastomosis. Compared with traditional artificial anastomosis, the auxiliary device anastomosis has the advantages of fast speed and low thrombosis rate.
[0003] The vascular anastomosis devices currently in use are mainly composed of a reverse anastomosis needle ring structure that is sleeved on the two ends of the blood vessels and auxiliary devices. Mainstream products such as the Coupler microvascular anastomosis device and the anastomosis products currently on the market are also improved on the basis of the Coupler product. Coupler has become a routine method for microvascular anastomosis surgery by American microsurgeons (the gold standard for venous anastomosis).
[0004] However, the current Coupler stapler has the following defects during clinical use: 1. The front end of the blood vessel extends out from the anastomotic sleeve and is spread out and fixed on the anastomotic surface of the anastomotic sleeve. The fixation is mainly performed by piercing the blood vessel wall with a coupling needle and pinning the blood vessel to the anastomotic surface. During the traction and alignment of the blood vessel, the blood vessel is very likely to be torn by the coupling needle, causing vascular leakage; 2. The anastomotic sleeve needs to be aligned under the traction of an auxiliary tool. Since the coupling needle needs to be inserted into the coupling hole corresponding to the other anastomotic sleeve, the anastomotic sleeves at both ends need to be linearly aligned according to the predetermined position to prevent the blood vessel from twisting. However, the auxiliary tools currently used are very likely to deviate during traction, resulting in local twisting of the blood vessel. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides a hemostatic device for tumor surgery. The anastomotic sleeve of the device has better grip and anti-detachment properties on the blood vessel, which can prevent the coupling needle from tearing the blood vessel wall when the anastomotic sleeve pulls the blood vessel. At the same time, the pressing and assembling mechanism of the device can prevent the anastomotic sleeve from rotating during the pulling and alignment process, and prevent the anastomotic sleeve from rolling and causing local twisting of the blood vessel, thereby ensuring that the two anastomotic sleeves are aligned and assembled in a predetermined orientation, thereby achieving the effect of good vascular anastomosis and reducing the incidence of thrombosis.
[0006] In order to achieve the above technical effects, the present invention is implemented by the following technical solutions: A hemostatic device for tumor surgery includes a sliding adjustment handle, a first clamping mechanism is fixed to the end of the sliding adjustment handle, a second clamping mechanism is arranged on the sliding adjustment handle, the second clamping mechanism can slide on the sliding adjustment handle, a first anastomotic sleeve is fixed to the first clamping mechanism, a second anastomotic sleeve is fixed to the second clamping mechanism, a limiting baffle is fixed to the other end of the sliding adjustment handle, an extrusion push rod is threadedly connected to the limiting baffle, and the front end of the extrusion push rod is hinged to the second clamping mechanism.
[0007] Furthermore, the first clamping mechanism includes a connecting plate, a U-shaped slot and a locking mechanism, the second clamping mechanism includes a connecting plate, a U-shaped slot, a locking mechanism and a sliding adjustment sleeve, the U-shaped slot is fixed on the connecting plate, the locking mechanism is fixed on the top of the U-shaped slot, a slot is opened on the U-shaped slot wall of the U-shaped slot, the first anastomotic sleeve and the second anastomotic sleeve are clamped in the slot and locked in the U-shaped slot by the locking mechanism, the connecting plate of the second clamping mechanism is fixed on the sliding adjustment sleeve, and the sliding adjustment sleeve is sleeved on the sliding adjustment handle.
[0008] Furthermore, a sliding tooth is provided on one side of the sliding adjustment handle, and a clamping plate is hinged on the inner wall of the sliding adjustment sleeve, and the clamping plate can prevent the sliding adjustment sleeve from sliding backward.
[0009] Furthermore, the locking mechanism includes a locking plate, one end of which is hinged to the hinged plate, and the other end of the locking plate is fixed with a threaded rod, the threaded rod is clamped between the fixing plates and locked on the fixing plate by a locking nut, the hinged plate and the fixing plate are fixed to the top of both sides of the U-shaped slot, a positioning strip is fixed to the bottom of the locking plate, and a positioning groove is opened on the first anastomotic sleeve and the second anastomotic sleeve.
[0010] Furthermore, the first anastomotic sleeve and the second anastomotic sleeve are both tubular structures, and an annular protrusion matching the slot is fixed on the outer wall of the first anastomotic sleeve and the second anastomotic sleeve, and a positioning groove is opened on the annular protrusion, and anti-slip barbs are arranged on the inner wall of the first anastomotic sleeve and the second anastomotic sleeve, and coupling needles and coupling holes are arranged on the end faces of the first anastomotic sleeve and the second anastomotic sleeve, and the coupling needle can be inserted into the coupling hole.
[0011] The beneficial effects of the present invention are as follows: the anastomotic sleeve of the device has a better grip and anti-detachment property on the blood vessel, which can prevent the coupling needle from tearing the blood vessel wall when the anastomotic sleeve pulls the blood vessel. At the same time, the pressing and assembling mechanism of the device can prevent the anastomotic sleeve from rotating during the pulling and alignment process, and prevent the anastomotic sleeve from rolling and causing local twisting of the blood vessel, thereby ensuring that the two anastomotic sleeves are aligned and assembled in a predetermined orientation, thereby achieving the effect of good blood vessel anastomosis and reducing the incidence of thrombosis. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0013] Figure 1 It is a schematic diagram of the assembly structure of a hemostatic device for tumor surgery; Figure 2 This is a schematic diagram of the composition and structure of a hemostatic device used in tumor surgery. Figure 1 ; Figure 3 This is a schematic diagram of the composition and structure of a hemostatic device used in tumor surgery. Figure 2 ; Figure 4 It is a schematic diagram of the working status of the first anastomotic sleeve and the second anastomotic sleeve.
[0014] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-sliding adjustment handle, 2-first clamping mechanism, 3-second clamping mechanism, 4-first anastomotic sleeve, 5-second anastomotic sleeve, 6-guide rail, 7-sliding adjustment sleeve, 8-limit baffle, 9-extrusion push rod, 10-card plate, 11-sliding teeth, 12-locking mechanism, 13-right segment of blood vessel, 14-left segment of blood vessel, 31-U-shaped card slot, 32-card slot, 33-card slot sliding entrance, 51-annular protrusion, 52-positioning groove, 53-anti-slip barb, 54-coupling needle, 55-coupling hole, 121-locking plate, 122-hinge plate, 123-fixing plate, 124-locking nut, 125-positioning card strip. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] like Figure 1As shown, a hemostatic device for tumor surgery includes a sliding adjustment handle 1, a first clamping mechanism 2 is fixed to the end of the sliding adjustment handle, a second clamping mechanism 3 is arranged on the sliding adjustment handle, the second clamping mechanism can slide on the sliding adjustment handle, a first anastomotic sleeve 4 is fixed to the first clamping mechanism, a second anastomotic sleeve 5 is fixed to the second clamping mechanism, a limiting baffle 8 is fixed to the other end of the sliding adjustment handle, an extrusion push rod 9 is threadedly connected to the limiting baffle, and the front end of the extrusion push rod is hinged to the second clamping mechanism.
[0017] like Figure 2 As shown, the first clamping mechanism includes a connecting plate, a U-shaped slot 31 and a locking mechanism 12, and the second clamping mechanism includes a connecting plate, a U-shaped slot, a locking mechanism and a sliding adjustment sleeve, the U-shaped slot is fixed on the connecting plate, the locking mechanism is fixed on the top of the U-shaped slot, a slot 32 is opened on the U-shaped slot wall of the U-shaped slot, the first anastomotic sleeve and the second anastomotic sleeve are clamped in the slot and locked in the U-shaped slot by the locking mechanism, the connecting plate of the second clamping mechanism is fixed on the sliding adjustment sleeve, and the sliding adjustment sleeve is sleeved on the sliding adjustment handle.
[0018] A sliding tooth 11 is arranged on one side of the sliding adjustment handle, and a clamping plate 10 is hinged on the inner wall of the sliding adjustment sleeve, and the clamping plate can prevent the sliding adjustment sleeve from sliding backward.
[0019] The sliding adjustment handle is provided with a sliding rail 6, and the inner wall of the sliding adjustment sleeve 7 is provided with a sliding groove matching the sliding rail.
[0020] like Figure 3 As shown, the locking mechanism includes a locking plate 121, one end of which is hinged to a hinge plate 122, and a threaded rod is fixed to the other end of the locking plate, the threaded rod is clamped between the fixing plates 123 and locked to the fixing plate by a locking nut 124, the hinge plate and the fixing plate are fixed to the top of both sides of the U-shaped slot, a positioning strip 125 is fixed to the bottom of the locking plate, a positioning groove is provided on the first anastomotic sleeve and the second anastomotic sleeve, the positioning strip can be inserted into the positioning groove, and the cooperation between the positioning groove and the positioning strip can prevent the local torsion of the blood vessel caused by the rotation of the first anastomotic sleeve or the second anastomotic sleeve.
[0021] like Figure 4 As shown, the first anastomotic sleeve and the second anastomotic sleeve are both tubular structures, and an annular protrusion 51 matching the slot is fixed on the outer wall of the first anastomotic sleeve and the second anastomotic sleeve, and a positioning groove 52 is opened on the annular protrusion, and anti-slip barbs 53 are arranged on the inner wall of the first anastomotic sleeve and the second anastomotic sleeve, and a coupling needle 54 and a coupling hole 55 are arranged on the end faces of the first anastomotic sleeve and the second anastomotic sleeve, and the coupling needle can be inserted into the coupling hole.
[0022] The working principle of the device is as follows: the left and right blood vessels to be anastomosed are passed through the tube diameters of the second anastomotic sleeve and the first anastomotic sleeve respectively, and after passing through, the blood vessels are turned over and passed through the coupling needles of the first anastomotic sleeve and the second anastomotic sleeve. At this time, the vascular intima of the left and right blood vessels are opposite to each other, and then the first anastomotic sleeve and the second anastomotic sleeve are respectively inserted into the U-shaped grooves of the first clamping mechanism and the second clamping mechanism, and the annular protrusions of the first anastomotic sleeve and the second anastomotic sleeve are inserted into the grooves of the U-shaped grooves. During the insertion process, the positioning grooves are directed upwards, and then the locking plate of the locking mechanism is rotated, and the locking plate is locked on the fixing plate through the locking nut, and the positioning strip at the bottom of the locking plate is inserted into the positioning groove, so that the first anastomotic sleeve or the second anastomotic sleeve is anastomosed. The sleeve is fixed in the U-shaped slot, and the second clamping mechanism is slid at this time, so that the second clamping mechanism is pressed against the first clamping mechanism. At this time, the second anastomotic sleeve is attached to the first anastomotic sleeve, and during the sliding process, the clamping plate of the second clamping mechanism will be stuck on the sliding tooth 11 to prevent the second clamping mechanism from sliding in the opposite direction. Subsequently, a thrust is applied to the second clamping mechanism by squeezing the push rod 9, so that the coupling needles and coupling holes of the first anastomotic sleeve and the second anastomotic sleeve are coupled and connected with each other, and the second anastomotic sleeve cooperates with the first anastomotic sleeve under the continuous squeezing of the second clamping mechanism; finally, the locking mechanism 12 is released, and the first anastomotic sleeve and the second anastomotic sleeve are slid out of the first clamping mechanism and the second clamping mechanism respectively. At this time, the left segment of the blood vessel and the right segment of the blood vessel are anastomosed together to complete the postoperative hemostasis work.
[0023] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
Claims
1. A hemostatic device for tumor surgery, characterized in that: It includes a sliding adjustment handle, a first clamping mechanism is fixed on the end of the sliding adjustment handle, a second clamping mechanism is arranged on the sliding adjustment handle, the second clamping mechanism can slide on the sliding adjustment handle, a first anastomotic sleeve is fixed on the first clamping mechanism, a second anastomotic sleeve is fixed on the second clamping mechanism, a limiting baffle is fixed on the other end of the sliding adjustment handle, an extrusion push rod is threadedly connected to the limiting baffle, and the front end of the extrusion push rod is hinged to the second clamping mechanism.
2. A hemostatic device for tumor surgery according to claim 1, characterized in that: The first clamping mechanism includes a connecting plate, a U-shaped slot and a locking mechanism, and the second clamping mechanism includes a connecting plate, a U-shaped slot, a locking mechanism and a sliding adjustment sleeve. The U-shaped slot is fixed to the connecting plate, and the locking mechanism is fixed to the top of the U-shaped slot. A slot is opened on the U-shaped slot wall of the U-shaped slot. The first anastomotic sleeve and the second anastomotic sleeve are clamped in the slot and locked in the U-shaped slot by the locking mechanism. The connecting plate of the second clamping mechanism is fixed on the sliding adjustment sleeve, and the sliding adjustment sleeve is sleeved on the sliding adjustment handle.
3. A hemostatic device for tumor surgery according to claim 2, characterized in that: A sliding tooth is arranged on one side of the sliding adjustment handle, and a clamping plate is hinged on the inner wall of the sliding adjustment sleeve, and the clamping plate can prevent the sliding adjustment sleeve from sliding backward.
4. The hemostatic device for tumor surgery according to claim 2, characterized in that: The locking mechanism includes a locking plate, one end of which is hinged to the hinged plate, and the other end of the locking plate is fixed with a threaded rod, the threaded rod is clamped between the fixing plates and locked on the fixing plate through a locking nut, the hinged plate and the fixing plate are fixed to the top of both sides of the U-shaped slot, a positioning strip is fixed to the bottom of the locking plate, and a positioning groove is provided on the first anastomotic sleeve and the second anastomotic sleeve.
5. The hemostatic device for tumor surgery according to claim 4, characterized in that: The first anastomotic sleeve and the second anastomotic sleeve are both tubular structures. An annular protrusion matching the slot is fixed on the outer wall of the first anastomotic sleeve and the second anastomotic sleeve, and a positioning groove is opened on the annular protrusion. Anti-slip barbs are arranged on the inner wall of the first anastomotic sleeve and the second anastomotic sleeve. Coupling needles and coupling holes are arranged on the end faces of the first anastomotic sleeve and the second anastomotic sleeve, and the coupling needle can be inserted into the coupling hole.