CN114403956B - Heart tissue retractor - Google Patents
Heart tissue retractor Download PDFInfo
- Publication number
- CN114403956B CN114403956B CN202210222358.3A CN202210222358A CN114403956B CN 114403956 B CN114403956 B CN 114403956B CN 202210222358 A CN202210222358 A CN 202210222358A CN 114403956 B CN114403956 B CN 114403956B
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- clamp
- clip body
- heart
- heart tissue
- tissue retractor
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Classifications
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B2017/0237—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for heart surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of medical appliances, and particularly relates to a heart tissue retractor which comprises a non-invasive clamp, a distal fixing clamp and a traction rope, wherein the proximal non-invasive clamp is used for clamping tissue at a heart incision, the distal fixing clamp is connected with the non-invasive clamp, and the traction force and the traction direction of the tissue at the heart incision are changed by adjusting the positions of the fixing clamp and/or the non-invasive clamp; the non-invasive clamp comprises an upper clamp body with an upper clamping part and a lower clamp body with a lower clamping part, wherein the upper clamping part and the lower clamping part are arc-shaped plates and are matched with each other, and are inclined to one side of the lower clamp body; the invention can change the pulling force and the pulling direction of the tissues at the heart incision by adjusting the clamping positions of the atraumatic clamp and the fixing clamp, has convenient and quick position adjustment, and can avoid damaging the tissues.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a heart tissue retractor.
Background
In cardiac surgery, it is necessary to expose the aortic valve, left ventricular outflow tract, left intra-atrial structures (e.g., left atrial appendage, mitral valve, etc.), right intra-atrial structures (e.g., septum, tricuspid valve, etc.), or pulmonary valve, right ventricular outflow tract, etc. through various incisions.
The traditional method is that an incision is pulled by a suture traction wire so that an operator can see the internal structure clearly, and then the next operation is performed. However, the method of sewing the traction wire needs to sew a plurality of sutures on heart tissue, which is easy to cause heart tissue damage, and in addition, the traction direction and the traction degree of the traction wire need to be adjusted at any time along with the progress of the operation to better reveal, so that the traction wire needs to be detached and the traction position needs to be adjusted to sew the traction wire again, and the operation time is delayed.
Disclosure of Invention
The invention aims to provide a heart tissue retractor which solves the problems that a suture traction wire is easy to cause tissue damage and the traction direction and the traction degree cannot be adjusted in time in the prior art.
In order to achieve the above object, the present invention solves the following problems by the following technical scheme:
the invention provides a heart tissue retractor, which comprises a non-invasive clamp, a distal fixing clamp and a traction rope, wherein the proximal end of the non-invasive clamp is used for clamping tissue at a heart incision, the distal fixing clamp is connected with the non-invasive clamp, and the traction force and the traction direction of the tissue at the heart incision are changed by adjusting the positions of the fixing clamp and/or the non-invasive clamp;
the non-invasive clamp comprises an upper clamp body with an upper clamping part and a lower clamp body with a lower clamping part, wherein the upper clamping part and the lower clamping part are arc-shaped plates and are matched with each other, and are inclined to one side of the lower clamp body.
As a further technical solution, the traction rope is hinged with the atraumatic clip and the fixing clip respectively.
As a further technical scheme, the mating surfaces of the upper clamping part and the lower clamping part are provided with staggered protrusions.
As a further technical scheme, the length of the pressing end of the lower clamp body is greater than that of the pressing end of the upper clamp body, the pressing end of the upper clamp body is hinged with a first baffle, and the upper clamp body is turned to one side of the lower clamp body through the first baffle to seal an opening between the upper clamp body and the lower clamp body.
As a further technical scheme, the fixing clamp comprises an upper fixing clamp body and a lower fixing clamp body, the pressing end of the upper fixing clamp body is hinged with a second baffle, one side of the lower fixing clamp body is turned to be sealed by the second baffle, an opening between the upper fixing clamp body and the lower fixing clamp body is sealed, and an obtuse angle is formed between the first baffle and the upper fixing clamp body during sealing.
As a further technical scheme, the traction rope is hinged with the lower clamp body and the lower clamp body of the fixing clamp respectively.
As a further technical scheme, T-shaped shafts are arranged at two ends of the traction rope and are hinged with the lower clamp body and the lower clamp body of the fixing clamp through the T-shaped shafts.
As a further technical scheme, the end of the pressing end of the lower clamp body of the fixing clamp is provided with a bending blocking part and a rotating shaft installation part connected with the bending blocking part, a gap for clamping the second blocking piece is arranged between the bending blocking part and the rotating shaft installation part, and the second blocking piece is rotationally extruded to pass through the rotating shaft installation part and enter the gap for clamping.
As a further technical scheme, the lower clamp body pressing end is provided with a rotating shaft installation part, and the first baffle plate is rotationally extruded to pass through the rotating shaft installation part to be contacted with the lower clamp body to form clamping.
As a further technical scheme, the bus direction of the arc-shaped plate is consistent with the inclined direction of the arc-shaped plate.
The beneficial effects of the invention are as follows:
(1) The invention is provided with the atraumatic clamp and the fixing clamp which are connected through the traction rope, the traction force and the traction direction of tissues at the heart incision can be changed by adjusting the clamp positions of the atraumatic clamp and the fixing clamp, the position adjustment is convenient and rapid, the internal structure of the heart can be fully exposed, and the subsequent operation of an operator is facilitated.
(2) The upper clamping part and the lower clamping part are arc-shaped plates and are matched with each other, and the arc-shaped plate clamping part can be matched with heart incision tissues and has large contact area, so that the damage to the heart tissues can be avoided.
(3) The pressing end of the upper clamp body is hinged with the first baffle plate, and the first baffle plate is rotated to one side of the lower clamp body to seal the opening between the upper clamp body and the lower clamp body, so that a suture thread is prevented from entering the opening during suture in an operation, and simultaneously, the suture thread can be rapidly slid away, and the suture thread is not wound with a nondestructive clamp, so that precious operation time waste is reduced; and because the first baffle plate is hinged with the upper clamp body, the first baffle plate can be rotated to a position which does not influence the opening and closing of the clamping end before the non-destructive clamp is not clamped.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It should also be understood that the drawings are for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
FIG. 1 shows a schematic overall structure of the present invention;
FIG. 2 illustrates a front view of the atraumatic clip construction of the present invention;
FIG. 3 illustrates an isometric view of a non-invasive clip lower clip body of the present invention;
FIG. 4 shows a front view of the clip structure of the present invention;
fig. 5 shows a partial enlarged view at a in fig. 4.
In the figure: 1. a non-damaging clamp; 11. an upper clamp body; 12. a lower clamp body; 13. an upper clamping part; 14. a lower clamping part; 15. a first baffle; 16. a first torsion spring; 17. a first T-shaped rotating shaft; 18. a protrusion; 2. a fixing clamp; 21. a clamp body is arranged on the fixed clamp; 22. a lower clamp body of the fixed clamp; 23. a second baffle; 24. a second T-shaped rotating shaft; 25. a second torsion spring; 26. a rotating shaft mounting part; 27. a bending blocking part; 3. a traction rope.
Detailed Description
The technical solutions in the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, the heart tissue retractor provided in this embodiment includes a atraumatic clip 1 with a proximal end for clamping tissue at a heart incision, a distal end fixing clip 2, and a traction rope 3 connecting the two, wherein the traction force and traction direction of the tissue at the heart incision are changed by adjusting the clamping position of the fixing clip 2 and/or the atraumatic clip 1;
the atraumatic clip 1 comprises an upper clip body 11 with an upper clip part 13 and a lower clip body 12 with a lower clip part 14, wherein the upper clip part 13 and the lower clip part 14 are arc-shaped plates and are matched with each other, and are inclined to one side of the lower clip body 12, as shown in fig. 2.
It should be noted that, when the heart tissue retractor is used, at least two heart tissue retractors are matched for use, and the positions of the heart tissue retractors are arranged according to the requirements of operators, so that the internal structures of the heart are fully exposed, and the operators can operate conveniently.
The atraumatic clamp 1 and the fixed clamp 2 which are connected through the traction rope 3 are arranged, the traction force and the traction direction of tissues at the heart incision can be changed by adjusting the clamping positions of the atraumatic clamp 1 and the fixed clamp 2, the position adjustment is convenient and rapid, the internal structure of the heart can be fully exposed, and the subsequent operation of an operator is convenient; meanwhile, the arc plate clamping part of the atraumatic clamp 1 can be matched with heart incision tissues, the contact surface is large, and the damage to the tissues can be avoided.
The upper clamping part 13 and the lower clamping part 14 are arranged to incline to one side of the lower clamping body 12, so that the atraumatic clamp 1 is beneficial to pulling outwards, and the internal structure of the heart is convenient to expose. Typically, the tilt angle is in the range of 30 to 90.
It will be appreciated that the generatrix direction of the arcuate plate should be coincident with the direction in which it is inclined.
When the clamp is used, after the non-invasive clamp 1 is clamped, as the heart is positioned in the body and the inside is not provided with a fixed part, the fixed clamp 2 is led out through the traction rope 3, and the fixed clamp 2 can be fixed on a single towel or other objects with a fixed supporting function. In order to facilitate the post-disinfection and the recycling, the non-damage clamp and the fixing clamp can be made of stainless steel materials, and the traction rope can be made of soft steel wires, so that the disinfection is facilitated.
The clamping end of the fixing clamp 2 can be provided with a rubber block or teeth to increase the friction force with the single towel and other supporters.
The clamp is provided with an upper clamp body and a lower clamp body, is hinged at the middle position, keeps clamping force through a spring, and has one end for clamping an article as a clamping end and the end for controlling the opening and closing of the clamping end as a pressing end.
In this embodiment, as shown in fig. 2, the atraumatic clip 1 includes an upper clip body 11 and a lower clip body 12 hinged at the middle, and the clamping force is maintained by a first torsion spring 16; as shown in fig. 4, the fixing clip includes a fixing clip upper clip body 21 and a fixing clip lower clip body 22 hinged at the middle, and the clamping force is maintained by a second torsion spring 25.
Because the clamp is provided with an opening between the upper clamp body and the lower clamp body at the pressing end for controlling the opening and closing of the clamping end, the suture thread in the operation is easy to enter the opening when being threaded, and can be wound with the clamp, and then, the suture thread is wound or unwound or cut off to be threaded again, thereby wasting precious operation time.
For this reason, the pressing end of the upper clamp 11 is hinged with the first baffle 15, and the opening between the upper clamp 11 and the lower clamp 12 is closed by rotating the first baffle 15 to one side of the lower clamp 12, so that the suture thread is prevented from entering the opening, and the operation time waste is reduced. It will be appreciated that, before the clip is in the unset position, the first blocking piece 15 is turned to a position that does not affect the opening and closing of the pressing end, for example, turned to the upper surface of the upper clip body 11, and after the clip is in the secured position, turned to the lower clip body 12 to close the opening. The length of the pressing end of the lower clamp body 12 is larger than that of the pressing end of the upper clamp body 11, an obtuse angle is formed between the first baffle 15 and the upper clamp body 11 when the opening is closed, and the first baffle 15 is optimally used for 120 degrees, and when a suture touches the first baffle 15, the suture is rapidly guided to slide away from the upper surface of the suture, so that the suture is prevented from winding.
Of course, the same may be encountered with the fixation clamp outside the body, and thus, as shown in fig. 4, the pressing end of the fixation clamp upper clamp 21 is hinged with the second blocking piece 23, and the opening between the fixation clamp upper clamp 21 and the fixation clamp lower clamp 22 is closed by turning the second blocking piece 23 to one side of the fixation clamp lower clamp 22.
In order to avoid the influence of the blocking piece moving after closing, in this embodiment, as shown in fig. 5, the end of the pressing end of the lower clamp body 22 of the fixing clamp is provided with a bending blocking portion 27 and a rotating shaft mounting portion 26 connected with the bending blocking portion, a gap for clamping the second blocking piece 23 is provided between the bending blocking portion and the rotating shaft mounting portion, and the second blocking piece 23 is rotationally extruded to pass through the rotating shaft mounting portion 26 and enter the gap for clamping.
In this embodiment, the shaft mounting portion 26 is of a sleeve structure, and there is a certain obstruction when the second blocking piece 23 rotates to the shaft mounting portion 26, and the second blocking piece 23 can pass through the gap of the engagement by slightly pushing the second blocking piece by hand, so that the second blocking piece 23 cannot move. It will be appreciated that the minimum distance between the bending stopper 27, the shaft mounting portion 26 and the rotation center of the second blocking piece 23 should be slightly smaller than the radius of gyration at the end of the second blocking piece 23.
The pressing end of the lower clamp body 12 is only provided with a rotating shaft mounting part 26, and the first baffle 15 is rotated and extruded to pass through the rotating shaft mounting part 26 to be contacted with the lower clamp body 12 to form clamping.
It should be noted that the bending stopper 27 is used for mounting the second torsion spring 25.
The traction rope 3 is hinged with the non-damaged clamp 1 and the fixed clamp 2 respectively, so that the connection flexibility of the traction rope 3 and the non-damaged clamp 1 and the fixed clamp 2 is increased, and the traction stress compliance is ensured.
Specifically, the traction rope 3 is hinged to the lower clamp body 12 and the fixed clamp lower clamp body 22 respectively. The two ends of the traction rope 3 are provided with T-shaped shafts, and the T-shaped shafts are hinged with the lower clamp body 12 and the lower clamp body 22 of the fixed clamp. In this embodiment, one end of the traction rope 3 is hinged to the lower clamp body 12 through the first T-shaped rotating shaft 17, and the other end is hinged to the lower clamp body 22 through the second T-shaped rotating shaft 24, that is, is hinged to the rotating shaft mounting portion 26.
In this embodiment, as shown in fig. 3, the mating surfaces of the upper clamping portion 13 and the lower clamping portion 14 are provided with staggered protrusions 18, which is beneficial to increasing friction with heart incision tissue and preventing slipping during clamping, thus affecting the operation.
Although the present invention has been described with respect to the preferred embodiments, it is not intended to be limited thereto, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and techniques disclosed herein without departing from the spirit and scope of the present invention.
Claims (9)
1. The heart tissue retractor is characterized by comprising a non-invasive clamp, a distal fixing clamp and a traction rope, wherein the proximal fixing clamp is used for clamping tissue at a heart incision, the distal fixing clamp is used for clamping the tissue at the heart incision, and the traction force and the traction direction of the tissue at the heart incision are changed by adjusting the positions of the fixing clamp and/or the clamping positions of the non-invasive clamp;
the non-invasive clamp comprises an upper clamp body with an upper clamping part and a lower clamp body with a lower clamping part, wherein the upper clamping part and the lower clamping part are arc-shaped plates and are matched with each other, and are inclined to one side of the lower clamp body;
the direction of the bus of the arc-shaped plate is consistent with the inclined direction of the bus.
2. The heart tissue retractor of claim 1 wherein the pull cord is hinged to the atraumatic clip and the fixation clip, respectively.
3. The heart tissue retractor of claim 1 wherein mating surfaces of the upper and lower clamping portions are provided with staggered protrusions.
4. The heart tissue retractor of claim 2 wherein the lower clip body pressing end has a length greater than the upper clip body pressing end, the upper clip body pressing end being hinged with a first flap, the opening between the upper clip body and the lower clip body being closed by the first flap being rotated to one side of the lower clip body, and the first flap being at an obtuse angle with respect to the upper clip body when closed.
5. The heart tissue retractor of claim 4 wherein the retaining clip comprises an upper retaining clip body and a lower retaining clip body, wherein the pressing end of the upper retaining clip body is hinged with a second stop, and the opening between the upper retaining clip body and the lower retaining clip body is closed by the second stop being rotated to one side of the lower retaining clip body.
6. The heart tissue retractor of claim 5 wherein the pull cord is hinged to the lower clip body and the lower clip body of the retaining clip, respectively.
7. The heart tissue retractor of claim 6 wherein the traction rope has T-shaped shafts at both ends, and is hinged to the lower clamp body and the lower clamp body of the fixing clamp by the T-shaped shafts.
8. The heart tissue retractor of claim 5 wherein the end of the lower clip body pressing end of the retaining clip is provided with a bent blocking portion and a shaft mounting portion connected thereto, and a gap is provided therebetween for engaging the second blocking piece, the second blocking piece being rotationally extruded over the shaft mounting portion into the gap engagement.
9. The heart tissue retractor of claim 4 wherein the lower clip body pressing end is provided with a shaft mounting portion and the first flap is rotationally extruded over the shaft mounting portion to contact the lower clip body to form a snap fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222358.3A CN114403956B (en) | 2022-03-07 | 2022-03-07 | Heart tissue retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222358.3A CN114403956B (en) | 2022-03-07 | 2022-03-07 | Heart tissue retractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114403956A CN114403956A (en) | 2022-04-29 |
| CN114403956B true CN114403956B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210222358.3A Active CN114403956B (en) | 2022-03-07 | 2022-03-07 | Heart tissue retractor |
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| Country | Link |
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| CN (1) | CN114403956B (en) |
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| DE102012009142B3 (en) * | 2012-05-08 | 2013-06-13 | Dirk Hellekes | Forceps-shaped medical instrument for use by surgeon for resection of lateral cranial cartilage portions during nose surgery, has lower gripping jaw projected in longitudinal direction of legs over upper gripping jaw in closed position |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114403956A (en) | 2022-04-29 |
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