A blood-absorbing pad and puncture device system for surgery

Abstract

The invention discloses a surgical blood-absorbing pad and puncture device system, which belongs to the technical field of medical devices. The reference layer of the surgical blood-absorbing pad is provided with a positioning hole, and the blood-absorbing layer is provided with a penetration hole. The blood-absorbing layer and the reference layer can be folded and opened along the first folding line between the reference layer and the blood-absorbing layer, and the positioning hole and the penetration hole can be connected. The surgical blood-absorbing pad can assist doctors in determining the incision position and the length of the incision by providing positioning holes on the reference layer, which is beneficial to improving the accuracy and efficiency of the operation. The blood-absorbing layer can absorb the bleeding at the incision in time, thereby achieving the hemostasis function at the incision, greatly reducing the amount of bleeding during the patient's operation, and improving the cleanliness of the patient's abdominal surface. In addition, the synergistic effect of the blood-absorbing layer and the reference layer can not only limit the surgical instruments to a certain extent, avoiding the surgical instruments squeezing the incision to aggravate the bleeding, but also can perform emergency hemostasis on the patient's incision by pressing.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood-absorbing pad for surgery and a puncture device system using the blood-absorbing pad for surgery. Background Art

[0002] During minimally invasive surgery, the doctor needs to use a scalpel to make an incision of a specific length on the surface of the patient's abdominal skin, then insert a puncture device into the patient's body through the incision, use the puncture device to establish a channel in the patient's body for subsequent surgical instruments to enter and exit, and finally pass the surgical instruments through the channel into the patient's body and perform specific operations on the lesion site.

[0003] Since the movement of surgical instruments during the operation will inevitably touch the puncture device, the puncture device will shake, squeezing the tissue at the incision, causing a large amount of bleeding at the incision. At this time, if the wound is not stopped in time, when the tissue bleeds too much, it will threaten the patient's life and health, affect the patient's postoperative recovery, and flow to the patient's abdomen, affecting the surface cleanliness of the patient's abdomen. In the prior art, gauze is generally used to adsorb wound bleeding to achieve the purpose of hemostasis and cleaning, but the use of gauze for adsorption is not only inefficient and frequent, but also requires special medical staff to operate, which is easy to interrupt the doctor's operation, affecting the continuity of the operation, thereby having an adverse effect on the surgical effect. Summary of the invention

[0004] One object of the present invention is to provide a blood-absorbing pad for surgery, which is easy to use, has a good hemostatic effect, and does not require special personnel to operate.

[0005] Another object of the present invention is to provide a puncture system, which not only has high puncture accuracy and good effect, but also can absorb bleeding in time during surgery, which is helpful to reduce the difficulty of surgery and improve surgery efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A blood-absorbing pad for surgery, comprising:

[0008] A reference layer, wherein the reference layer is provided with positioning holes for limiting the incision position and the incision length;

[0009] A blood-absorbing layer, wherein the blood-absorbing layer is provided with a through hole for allowing surgical instruments to pass through;

[0010] A first folding line is provided between the blood-absorbing layer and the reference layer, and the blood-absorbing layer can be folded above the reference layer along the first folding line to connect the positioning hole and the penetration hole.

[0011] Preferably, a first blood coagulation layer is provided on the outer surface of the blood-absorbing layer facing the positioning hole and / or on the inner wall of the penetration hole.

[0012] Preferably, the surgical blood-absorbing pad further comprises:

[0013] A hemostatic layer, wherein a second folding line is arranged between the hemostatic layer and the blood-absorbing layer, and the hemostatic layer can be folded above the blood-absorbing layer along the second folding line.

[0014] Preferably, a hemostatic column is provided on the hemostatic layer, and when the hemostatic layer is folded along the second folding line to above the blood-absorbing layer, the hemostatic column is inserted into the penetration hole.

[0015] Preferably, a second coagulation layer is provided on the hemostatic column.

[0016] Preferably, the first folding line and the second folding line are located at two ends of the reference layer, and the reference layer, the blood-absorbing layer and the hemostatic layer are in a sheet-like structure after being unfolded; or

[0017] The first folding line and the second folding line are located at the same end of the reference layer, and the reference layer, the blood-absorbing layer and the hemostatic layer are in a layered structure after being unfolded.

[0018] Preferably, a first release paper layer is provided on the bottom surface of the reference layer; and / or

[0019] A second release paper layer is disposed on the surface of the blood-absorbing layer opposite to the reference layer; and / or

[0020] A third release paper layer is arranged on the surface of the hemostatic layer opposite to the blood-absorbing layer.

[0021] Preferably, the reference layer, the blood-absorbing layer and the hemostatic layer are circular or square in shape.

[0022] Preferably, a hydrophobic layer is provided on the outer surface of the blood-absorbing layer facing the reference layer and on the top surface of the blood-absorbing layer.

[0023] Preferably, the blood-absorbing layer has a preset thickness, and the shape of the penetration hole is the same as the shape of the surgical instrument located therein.

[0024] A puncture system comprises a puncture and the above-mentioned surgical blood-absorbing pad, wherein the puncture can pass through the positioning hole and the penetration hole arranged on the surgical blood-absorbing pad.

[0025] Beneficial effects of the present invention:

[0026] The present invention provides a blood-absorbing pad for surgery, which includes a reference layer and a blood-absorbing layer, wherein the reference layer is provided with a positioning hole, the blood-absorbing layer is provided with a penetration hole, and a first folding line is provided between the reference layer and the blood-absorbing layer, and the blood-absorbing layer and the reference layer can be folded and opened along the first folding line, and the positioning hole and the penetration hole can be connected. The blood-absorbing pad for surgery is placed on the patient's body surface in an unfolded state before surgery. By providing the positioning hole on the reference layer, the doctor can be assisted in determining the incision position and the incision length, which is beneficial to improving the surgical accuracy and efficiency. After the surgery is completed, the blood-absorbing layer can be folded above the reference layer to connect the positioning hole and the penetration hole, so that the abdominal puncture device can pass through the penetration hole and the positioning hole into the patient's body. During the operation, the blood-absorbing layer can not only absorb the bleeding at the incision in time and achieve hemostasis at the incision, greatly reducing the amount of bleeding during the operation and improving the cleanliness of the patient's abdominal surface, but also cooperate with the reference layer to limit the puncture device to a certain extent, avoiding the puncture device squeezing the incision and aggravating the bleeding. When the patient has severe bleeding, it is convenient for the doctor to apply pressure to the wound area by pressing the hemostatic pad, thereby achieving the purpose of emergency hemostasis for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the first surgical blood-absorbing pad provided by the present invention in a semi-expanded state;

[0028] Figure 2 It is a structural schematic diagram of the first blood-absorbing pad for surgery provided by the present invention when it is in a folded state;

[0029] Figure 3 This is a bottom view of the first surgical blood-absorbing pad provided by the present invention in a fully unfolded state;

[0030] Figure 4 This is a top view of the first blood-absorbing pad for surgery provided by the present invention in a fully unfolded state;

[0031] Figure 5 is a cross-sectional view of the first surgical blood-absorbing pad provided by the present invention;

[0032] Figure 6 It is a structural schematic diagram of the second surgical blood-absorbing pad provided by the present invention in a semi-expanded state;

[0033] Figure 7 It is a structural schematic diagram of the second surgical blood-absorbing pad provided by the present invention when it is in a fully expanded state;

[0034] Figure 8 It is a structural schematic diagram of the second surgical blood-absorbing pad provided by the present invention when it is in a folded state;

[0035] Fig. 9It is a structural schematic diagram of the third surgical blood-absorbing pad provided by the present invention in a semi-expanded state;

[0036] Fig.10 It is a structural schematic diagram of the third surgical blood-absorbing pad provided by the present invention when it is in a partially unfolded state;

[0037] Fig.11 It is a schematic structural diagram of the third surgical blood-absorbing pad provided by the present invention when it is in a folded state;

[0038] Fig.12 is a cross-sectional view of the third surgical blood-absorbing pad provided by the present invention in an exploded state;

[0039] Fig.13 is a cross-sectional view of the third surgical blood-absorbing pad provided by the present invention in a folded state;

[0040] Fig.14 The use of the trocar system provided by the present invention Figure 1 ;

[0041] Fig.15 The use of the trocar system provided by the present invention Figure 2 ;

[0042] Fig.16 The use of the trocar system provided by the present invention Figure 3 .

[0043] In the figure:

[0044] 1. Surgical blood-absorbing pad; 11. Reference layer; 12. Positioning hole; 13. Blood-absorbing layer; 14. Penetration hole; 15. First folding line; 16. Hemostatic layer; 17. Hemostatic column; 18. Second coagulation layer; 19. Second folding line; 110. First release paper layer; 111. Second release paper layer; 112. Hydrophobic layer; 113. First coagulation layer;

[0045] 2. trocar; 21. puncture needle; 22. puncture needle cannula;

[0046] 3. Target organization. DETAILED DESCRIPTION

[0047] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] Embodiment 1

[0049] This embodiment provides a surgical blood-absorbing pad 1, which can be used in various minimally invasive surgeries. When in use, the surgical blood-absorbing pad 1 is first placed on the target tissue 3 on the patient's body surface that needs to be operated on, and then it is used to absorb the blood flowing out of the incision to achieve a hemostatic function at the incision, greatly reducing the amount of bleeding during the patient's surgery, thereby preventing the blood flowing out of the incision from affecting the cleanliness of the patient's body surface. Specifically, Figures 1 to 5 As shown, the surgical blood-absorbing pad 1 comprises a reference layer 11 and a blood-absorbing layer 13. The reference layer 11 is provided with a positioning hole 12, and the blood-absorbing layer 13 is provided with a penetration hole 14. A first folding line 15 is provided between the reference layer 11 and the blood-absorbing layer 13. The blood-absorbing layer 13 can be folded above the reference layer 11 along the first folding line 15 to connect the positioning hole 12 and the penetration hole 14. In this embodiment, the reference layer 11 and the blood-absorbing layer 13 are both circular sheet structures. Of course, in addition to the circular sheet structure, other structures can also be as follows Figures 6 to 8 As shown, the reference layer 11 and the blood-absorbing layer 13 are set as rectangular sheet structures, or can also be set as regular shapes such as elliptical, waist-shaped or other irregular shapes according to the surgical position of the patient.

[0050] The above-mentioned surgical blood-absorbing pad 1 is in an unfolded state before the operation, and the reference layer 11 and the blood-absorbing layer 13 are located in the same plane. Before the operation, firstly, the corresponding blood-absorbing pad specifications are selected according to the specifications of the surgical instruments used in the operation. In this embodiment, the surgical instrument is a puncture device 2, and when the specifications of the puncture device 2 are 5mm, 10mm or 12mm, it is necessary to select a blood-absorbing pad of corresponding specifications according to the specifications, so that the size of the positioning hole 12 of the reference layer 11 on the blood-absorbing pad can allow the puncture needle cannula 22 to pass through, and preferably the size of the positioning hole 12 is larger than the cross-sectional size of the puncture needle cannula 22, so that the puncture needle cannula 22 can pass smoothly; then the reference layer 11 is placed on the target tissue 3 on the patient's body surface where the operation is required, and the positioning hole 12 is set directly opposite to the target tissue 3. By using the position of the positioning hole 12 to limit the operation position, and using the size of the positioning hole 12 to limit the length of the incision, it is avoided that the incision position opened by the doctor is deviated or the incision length is too long or too short, which not only greatly improves the operation accuracy, lays a good foundation for subsequent operations, but also helps to improve the effect of postoperative recovery of patients. After the operation is completed, the blood-absorbing layer 13 is folded along the first folding line 15 to the top of the reference layer 11. At this time, the penetration hole 14 set on the blood-absorbing layer 13 is connected with the positioning hole 12, and the puncture device 2 can pass through the penetration hole 14 and the positioning hole 12 to enter the patient's body. The size of the penetration hole 14 should not be too large or too small, and it is preferably the same as the cross-sectional size of the puncture needle sleeve 22, so as to improve the coverage of the puncture needle sleeve 22. During the operation, the blood-absorbing layer 13 can not only absorb the bleeding at the incision in time, improve the cleanliness of the patient's body surface, and thus help to improve the accuracy of the operation, but also during the absorption process, the doctor's operation will not be interrupted, and there is no need to set up special medical staff to take care of it, which is conducive to improving the efficiency of the operation and reducing the labor intensity of medical staff. In addition, the blood-absorbing layer 13 and the reference layer 11 work together to generate a certain covering force on the puncture device 2, thereby limiting the puncture device 2 to prevent the puncture device 2 from squeezing the tissue at the incision and aggravating the bleeding at the incision.

[0051] The reference layer 11 is a sheet structure made of a hydrophobic material. The reference layer 11 can be attached to the patient's body surface where surgery is required. Since the reference layer 11 is made of a hydrophobic material, the hydrophobic material will not absorb the blood flowing out of the incision. The shape of the positioning hole 12 can be circular, rectangular or other anisotropic shapes. In this embodiment, since the cross-section of the puncture device 2 is circular, the shape of the positioning hole 12 is set to be circular. Further, a scale line can be set on the circumference of the positioning hole 12 so that the doctor can accurately control the length of the incision. In order to limit the incisions of different lengths, multiple concentrically arranged annular structures can also be set along the axial direction of the positioning hole 12, each annular structure has a different diameter, and adjacent annular structures can be connected by easy break points. When the length of the incision to be opened is greater than the aperture of the positioning hole 12, a specific number of annular structures are torn off, thereby expanding the aperture of the positioning hole 12 to make it compatible with the length of the incision to be opened.

[0052] In order to improve the stability of the surgical blood-absorbing pad 1 set on the patient's body surface and prevent the surgical blood-absorbing pad 1 from slipping off the patient's body surface during use, a first release paper layer 110 is provided on the bottom surface of the reference layer 11. Before surgery, the paper film of the first release paper layer 110 is torn off to expose the adhesive layer of the first release paper layer 110, and then the reference layer 11 is pasted on the target tissue 3 on the patient's body surface where surgery is required. In order to facilitate operation, such as Figure 7 and Figure 8 As shown, a hand-held portion for facilitating tearing of the paper film is provided at the edge of the release paper layer, and the hand-held portion is a protruding structure protruding from the edge of the blood-absorbing pad and integrally formed with the paper film.

[0053] The blood-absorbing layer 13 is made of a hydrophilic material with high adsorption, such as gauze, cotton cloth, sponge, etc. The blood-absorbing layer 13 made of the above materials can quickly absorb the blood seeping from the incision. The blood can flow into the blood-absorbing layer 13 from the hole wall of the penetration hole 14 and the corresponding part of the blood-absorbing layer 13 and the positioning hole 12. In order to prevent the patient from losing too much blood during the operation, Figure 4 and Figure 5 As shown, a first coagulation layer 113 is provided on the hole wall of the penetration hole 14 and on the bottom surface of the blood-absorbing layer 13 at a position opposite to the positioning hole 12. The first coagulation layer 113 is a layered structure made of coagulation drugs, which can accelerate blood coagulation and significantly reduce the amount of bleeding during surgery. When the amount of bleeding is large, when the coagulation speed of the first coagulation layer 113 is lower than the bleeding speed, blood can pass through the first coagulation layer 113 into the blood-absorbing layer 13 and be absorbed by the adsorption material inside the blood-absorbing layer 13, so as to prevent blood from flowing to the patient's body surface and reducing the cleanliness of the patient's body surface.

[0054] Furthermore, if Figure 4 and Figure 5As shown, a hydrophobic layer 112 is provided on the bottom surface of the blood-absorbing layer 13, so as to prevent blood from continuously entering the blood-absorbing layer 13 from the gap between the blood-absorbing layer 13 and the reference layer 11. The hydrophobic layer 112 is made of a hydrophobic material, and the specific material is not limited. For example, it can be made of plastic, rubber, polymer film and other materials. Further, in order to prevent blood from flowing out from the top surface of the blood-absorbing layer 13 to form a blood flow, a hydrophobic layer 112 is also provided on the top surface of the blood-absorbing layer 13 to prevent blood from leaking out. The material of the hydrophobic layer 112 can be the same as the material of the hydrophobic layer 112 provided at the bottom of the blood-absorbing layer 13, or it can be different, and it is not specifically limited here. The hydrophobic layer 112 located on the top surface of the blood-absorbing layer 13 can be integrally formed with the hydrophobic layer 112 located on the bottom surface of the blood-absorbing layer 13. In addition, in the present embodiment, the aperture of the positioning hole 12 is larger than the aperture of the penetration hole 14, and the first coagulation layer 113 is provided on the bottom surface of the blood-absorbing layer 13 opposite to the positioning hole 12, so the hydrophobic layer 112 can be provided only on the portion of the bottom surface of the blood-absorbing layer 13 opposite to the reference layer 11, thereby not affecting the adsorption effect of the portion of the bottom surface of the blood-absorbing layer 13 opposite to the positioning hole 12.

[0055] Furthermore, when the puncture device 2 passes through the penetration hole 14 and the positioning hole 12, in order to improve the wrapping force of the surgical blood-absorbing pad 1 on the puncture device 2, the thickness of the blood-absorbing layer 13 is thickened so that the thickness of the blood-absorbing layer 13 reaches a preset thickness, and the shape of the penetration hole 14 and the shape of the portion of the puncture device 2 passing through the penetration hole 14 are set to be the same. In this embodiment, the preset thickness is between 5-10 mm, for example, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm, the shape of the penetration hole 14 is circular, and the diameter of the penetration hole 14 is the same as the diameter of the puncture device 2. In addition, thickening the thickness of the blood-absorbing layer 13 is also conducive to improving the adsorption capacity of the blood-absorbing layer 13.

[0056] Furthermore, in order to improve the stability of the relative position between the reference layer 11 and the blood-absorbing layer 13 and avoid the reference layer 11 and the blood-absorbing layer 13 being misaligned during the operation, thereby affecting the blood-absorbing effect of the blood-absorbing layer 13 and the accuracy of the operation, a second release paper layer 111 is provided on the surface of the blood-absorbing layer 13 opposite to the reference layer 11. The second release paper layer 111 is an annular structure and is provided around the circumferential edge of the blood-absorbing layer 13. After the operation is completed, the paper film of the second release paper layer 111 is torn off to expose the glue layer of the second release paper layer 111, and then the blood-absorbing layer 13 is pasted on the top surface of the reference layer 11. Of course, in other embodiments, the second release paper layer 111 can also be provided on the top surface of the reference layer 11, so as to achieve a stable connection between the reference layer 11 and the blood-absorbing layer 13. A convex structure is also provided at the edge of the paper film of the second release paper layer 111 to facilitate tearing.

[0057] Embodiment 2

[0058] On the basis of the first embodiment, this embodiment also provides a surgical blood-absorbing pad 1, which is different from the surgical blood-absorbing pad 1 in the first embodiment in that the surgical blood-absorbing pad 1 in this embodiment includes a hemostatic layer 16 in addition to the reference layer 11 and the blood-absorbing layer 13. The structures of the reference layer 11 and the blood-absorbing layer 13 are the same as those in the first embodiment, and are not described in detail here.

[0059] like Figures 9 to 13 As shown, the hemostatic layer 16 is a sheet-like structure connected to the top of the blood-absorbing layer 13, and a second folding line 19 is provided between the hemostatic layer 16 and the blood-absorbing layer 13. When the hemostatic layer 16 is not needed, it can be folded as shown in FIG. Fig.10 As shown, the hemostatic layer 16 is folded to the side of the blood-absorbing layer 13 for standby use. When the hemostatic layer 16 is needed, the hemostatic layer 16 can be folded to the top of the blood-absorbing layer 13 along the second folding line 19 to close the penetration hole 14 provided on the blood-absorbing layer 13, thereby preventing the blood at the incision from flowing out when the puncture device 2 is pulled out from the penetration hole 14. In addition, by providing the hemostatic layer 16, it is also convenient for medical staff to press the surgical blood-absorbing pad 1, thereby performing a pressing hemostasis treatment on the incision. In this embodiment, the hemostatic layer 16 can be a circular sheet structure, or a rectangular sheet structure or a structure of other shapes. The shapes of the hemostatic layer 16, the blood-absorbing layer 13, and the reference layer 11 can be the same or different, but in order to facilitate storage after folding, it is preferred that the shapes of the hemostatic layer 16, the blood-absorbing layer 13, and the reference layer 11 are the same.

[0060] In order to improve the hemostatic effect, a hemostatic column 17 may be provided on the surface of the hemostatic layer 16 opposite to the blood-absorbing layer 13. The hemostatic column 17 is made of a hydrophilic material with high adsorption, and the material may be the same as or different from the material of the blood-absorbing layer 13. The shape of the hemostatic column 17 is the same as the shape of the through hole 14, and the size of the hemostatic column 17 is the same as the size of the through hole 14, so that when the hemostatic layer 16 is folded to the top of the blood-absorbing layer 13 along the second folding line 19, the hemostatic column 17 can just fill the through hole 14, and is tightly arranged in the through hole 14 to block and press the incision, thereby achieving a hemostatic effect. In order to further improve the hemostatic effect, a second coagulation layer 18 may be provided on the hemostatic column 17. The second coagulation layer 18 is a layered structure made of coagulation drugs, which may be coated on the top surface of the hemostatic column 17, or on the top surface and outer wall of the hemostatic column 17, so as to abut against the incision, accelerate the coagulation speed at the incision, and avoid excessive bleeding at the incision. The second coagulation layer 18 may use the same coagulation drugs as the first coagulation layer 113, or may use different coagulation drugs, which is not specifically limited here.

[0061] Further, the reference layer 11 and the hemostatic layer 16 can be located at both ends of the blood-absorbing layer 13, or at the same end of the blood-absorbing layer 13. When the reference layer 11 and the hemostatic layer 16 are located at both ends of the blood-absorbing layer 13, they can be located at opposite ends of the blood-absorbing layer 13, or at adjacent ends. The reference layer 11, the blood-absorbing layer 13, and the hemostatic layer 16 are in a sheet-like structure after being unfolded, and the layers will not interfere with each other, which is convenient for production and manufacturing. When the reference layer 11 and the hemostatic layer 16 are located at the same end of the blood-absorbing layer 13, the reference layer 11, the blood-absorbing layer 13, and the hemostatic layer 16 are still in a layered structure after being unfolded, which is convenient for folding and storage.

[0062] In order to improve the hemostatic effect of the hemostatic layer 16 and prevent the hemostatic layer 16 from being misaligned with the blood-absorbing layer 13 during hemostasis, a third release paper layer is provided on the surface of the hemostatic layer 16 relative to the blood-absorbing layer 13. After the puncture device 2 is pulled out of the penetration hole 14, the paper film of the third release paper layer is torn off to expose the adhesive layer of the third release paper layer, and then the hemostatic layer 16 and the blood-absorbing layer 13 are pasted together. Of course, in other embodiments, the third release paper layer can also be provided on the top surface of the blood-absorbing layer 13.

[0063] Embodiment 3

[0064] On the basis of the first and second embodiments, this embodiment further provides a trocar system, which can be used in various minimally invasive surgeries, such as laparoscopic minimally invasive surgeries.

[0065] Specifically, Figures 14 to 16 As shown, the puncture system includes a puncture device 2 and a surgical blood-absorbing pad 1 in the first or second embodiment, and the puncture device 2 includes a puncture needle 21 and a puncture needle sleeve 22, and a channel is provided on the puncture needle sleeve 22 to allow the puncture needle 21 to pass through. Before the operation, the surgical blood-absorbing pad 1 is first placed on the target tissue 3 on the patient's body surface that needs to be operated on; then an incision is made at the positioning hole 12, and then the puncture device 2 formed by the puncture needle sleeve 22 and the puncture needle 21 being sleeved together passes through the penetration hole 14, the positioning hole 12 and the incision on the patient's body surface in sequence to enter the patient's body, and establish a channel for the surgical tools used in the subsequent operation to enter and exit the patient's body; after the channel is established, the puncture needle 21 is pulled out from the puncture needle sleeve 22, and then the surgical tools used in the subsequent operation are passed through the puncture needle sleeve 22 to perform the operation in the patient's body.

[0066] During the operation, the surgical blood-absorbing pad 1 can not only absorb the blood flowing out from the incision in time, achieve the hemostasis function at the incision, greatly reduce the amount of bleeding during the operation, avoid blood outflow affecting the cleanliness of the patient's body surface, and help improve the accuracy of the operation and the postoperative recovery effect, but also wrap the puncture device 2, generate a certain wrapping force on the puncture device 2, and avoid the puncture device 2 from squeezing the tissue at the incision and aggravating the tissue damage at the incision.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A blood-absorbing pad for surgery, characterized in that: include: A reference layer (11), wherein the reference layer (11) is provided with a positioning hole (12) for limiting a cutting position and a cutting edge length; A blood-absorbing layer (13), wherein the blood-absorbing layer (13) is provided with a penetration hole (14) for allowing surgical instruments to pass through; A first folding line (15) is provided between the blood-absorbing layer (13) and the reference layer (11), and the blood-absorbing layer (13) can be folded above the reference layer (11) along the first folding line (15) to connect the positioning hole (12) and the penetration hole (14); Graduation lines are arranged on the circumference of the positioning hole (12), or a plurality of concentrically arranged annular structures are arranged on the axial direction of the positioning hole (12), and adjacent annular structures are connected via breakable points; The surgical blood-absorbing pad (1) further comprises: a hemostatic layer (16), wherein a second folding line (19) is provided between the hemostatic layer (16) and the blood-absorbing layer (13), and along the second folding line (19) the hemostatic layer (16) can be folded above the blood-absorbing layer (13); A hemostatic column (17) is provided on the hemostatic layer (16); when the hemostatic layer (16) is folded along the second folding line (19) to above the blood-absorbing layer (13), the hemostatic column (17) is inserted into the penetration hole (14).

2. The blood-absorbing pad for surgery according to claim 1, characterized in that: A first blood coagulation layer (113) is provided on the outer surface of the blood-absorbing layer (13) directly facing the positioning hole (12) and / or on the inner wall of the penetration hole (14).

3. The blood-absorbing pad for surgery according to claim 1, characterized in that: A second coagulation layer (18) is provided on the hemostatic column (17).

4. The blood-absorbing pad for surgery according to claim 1, characterized in that: The first folding line (15) and the second folding line (19) are located at two ends of the reference layer (11), and the reference layer (11), the blood-absorbing layer (13) and the hemostatic layer (16) are in a sheet-like structure when unfolded; or The first folding line (15) and the second folding line (19) are located at the same end of the reference layer (11); and the reference layer (11), the blood-absorbing layer (13) and the hemostatic layer (16) present a layered structure when unfolded.

5. The blood-absorbing pad for surgery according to claim 1, characterized in that: A first release paper layer (110) is provided on the bottom surface of the reference layer (11); and / or A second release paper layer (111) is provided on the surface of the blood-absorbing layer (13) opposite to the reference layer (11); and / or A third release paper layer is provided on the surface of the hemostatic layer (16) opposite to the blood-absorbing layer (13).

6. The blood-absorbing pad for surgery according to claim 1, characterized in that: The reference layer (11), the blood-absorbing layer (13) and the hemostatic layer (16) are in a circular or square shape.

7. The blood-absorbing pad for surgery according to any one of claims 1 to 6, characterized in that: A hydrophobic layer (112) is provided on the outer surface of the blood-absorbing layer (13) directly facing the reference layer (11) and on the top surface of the blood-absorbing layer (13).

8. The blood-absorbing pad for surgery according to any one of claims 1 to 6, characterized in that: The blood-absorbing layer (13) has a preset thickness, and the shape of the penetration hole (14) is the same as the shape of the surgical instrument located inside the penetration hole.

9. A trocar system, comprising a trocar (2), characterized in that: It also comprises the surgical blood-absorbing pad (1) according to any one of claims 1 to 8, wherein the puncture device (2) is capable of passing through the positioning hole (12) and the penetration hole (14) provided on the surgical blood-absorbing pad (1).

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