Catheter fixer for gastrointestinal surgery

Abstract

The invention discloses a catheter fixator for gastrointestinal surgery, and relates to the technical field of medical instruments. Comprising a controller and a box body, a groove is formed in the top of the box body, a vertical block is arranged in the groove, a first driving part drives the vertical block to move along the groove, a transverse plate is formed on one side of the vertical block, a limiting shell is arranged on one side of the transverse plate, and a connecting plate is fixed to the outer side of the limiting shell; the second driving part drives the connecting plate and the limiting shell to move along the outer side of the transverse plate. The guide pipe is inserted into the limiting shell, the guide pipe is fixed through the limiting piece, the position of the limiting shell can be adjusted by arranging the first driving piece and the second driving piece, the position of the guide pipe can be effectively adjusted and controlled, and through the design, the flexibility and adjustability of the guide pipe fixing position are improved; and the stability and the reliability of the catheter are also ensured.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a catheter fixator for gastrointestinal surgery. Background Technology

[0002] With the continuous improvement of medical technology, gastrointestinal surgery has formed a comprehensive treatment system for gastrointestinal tumors that is standardized and individualized. When using catheters for interventional treatment in clinical gastrointestinal surgery, the catheters need to be positioned. Currently, the common practice is to attach them to the skin with tape or suture them directly into the skin. Neither of these two fixation methods is ideal in actual use. The former is easy to fall off, and the latter is troublesome to operate, not comfortable, and time-consuming and laborious.

[0003] Chinese invention patent application publication number CN111529894A discloses a catheter fixator for gastrointestinal surgery, specifically relating to the field of medical devices. The device includes a dressing with a base fixedly mounted on its upper surface. A cover is fitted onto the upper surface of the base. A fixing mechanism is fixedly mounted inside the cover and a catheter body is fixedly connected to it via the fixing mechanism. An adjustment knob is fixedly installed at the top of the cover. A groove is fixedly mounted on the outer surface of the dressing. This device can adapt to catheter bodies of different diameters, exhibiting strong adaptability, ease of use, and enhanced patient comfort.

[0004] Chinese invention patent application publication number CN109364346A discloses a gastrointestinal surgical catheter fixator. The purpose of this invention is to overcome the problems of existing gastrointestinal surgical catheter fixation devices, such as low efficiency in two-way movement, inability to achieve normal movement, and fixed ring diameter, which lead to unreasonable movement patterns and limited application ranges. This invention provides a gastrointestinal surgical catheter fixator, comprising a side positioning mechanism, a bottom carrier plate, a circumferential displacement platform, a normal rotation mechanism, and a top fixing bracket. This device enables multi-directional movement and positioning, provides normal degree of freedom, and allows for adjustable fixing diameters of the gastrointestinal surgical catheter.

[0005] The above solutions address the technical problems mentioned in the background section. However, in practical applications, both the above solutions and existing gastrointestinal surgical catheter fixators still have certain shortcomings, such as:

[0006] The existing catheter fixation devices used in gastrointestinal surgery have certain limitations in actual operation. Specifically, they make it difficult for medical staff to flexibly and accurately adjust the position of the catheter fixation device according to the specific location of the surgical incision and the actual position of the catheter after insertion.

[0007] If the catheter is accidentally scraped during medical or nursing procedures, it is very likely to cause the catheter to change position. This displacement will not only affect the normal function of the catheter, but may also cause a series of complications, bringing unnecessary pain and risks to the patient. Summary of the Invention

[0008] The purpose of this invention is to provide a catheter fixator for gastrointestinal surgery to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a gastrointestinal surgical catheter fixator, comprising a controller and a housing, wherein a groove is provided on the top of the housing, and a vertical block is provided in the groove, and a driving component 1 drives the vertical block to move along the groove; a horizontal plate is formed on one side of the vertical block, and a limiting shell is provided on one side of the horizontal plate; a connecting plate is fixed on the outside of the limiting shell, and a driving component 2 drives the connecting plate and the limiting shell to move along the outside of the horizontal plate;

[0010] The conduit is inserted into the limiting shell and fixed by the limiting component;

[0011] A placement plate is fixed to the top of the vertical block, and a first side block and a second side block are fixed to the top of the placement plate. Pressure components are provided on the outer sides of the first side block and the second side block. An accidental contact warning component is provided on the outer side of one of the pressure components. The accidental contact warning component includes a pressure sensor and an audible and visual alarm. Both the pressure sensor and the audible and visual alarm are electrically connected to the controller.

[0012] Preferably, the driving component includes a first lead screw and a third guide rod, the third guide rod being movably inserted into the vertical block, and the first lead screw being movably screwed into the vertical block.

[0013] Preferably, the second driving component includes a guide groove formed on the outer side of the horizontal plate, and a second lead screw is movably connected in the guide groove. The second lead screw is movably screwed to the connecting plate.

[0014] Preferably, the limiting member includes inclined guide grooves formed on the inner walls of both sides of the limiting shell, a pressure roller is provided between the two inclined guide grooves, and a movable shaft is fixed on both sides of the two pressure rollers, the movable shaft being adapted to the inclined guide groove.

[0015] Preferably, the pressing component assembly includes a vertical groove formed on the top of the placement plate, a plurality of first guide rods are fixed in the vertical groove, a connecting block is movably inserted into the rod body of the first guide rod, and a plurality of first springs are fixed between the side wall of the vertical groove and the connecting block.

[0016] A pressure-retaining element is provided on the top of the connecting block.

[0017] Preferably, the pressing component includes an arc-shaped plate, with several socket shells fixed on the inner side of the arc-shaped plate, insert plates movably inserted into the socket shells, an arc-shaped pressing head fixed at the end of the insert plate, and several third springs fixed between the inner wall of the end of the socket shell and the insert plate.

[0018] Preferably, the accidental touch warning component further includes a third lead screw, the end of which is fixed with a second vertical plate, and a first vertical plate is provided on the outer side of the second vertical plate, and a pressure sensor is fixed on the side of the first vertical plate;

[0019] Several second guide rods are fixed to the side of the first vertical plate. The second guide rods are movably connected to the second vertical plate. Several second springs are fixed between the second vertical plate and the first vertical plate.

[0020] Preferably, a horizontal plate is provided on the top of the limiting shell, and the horizontal plate is connected to the limiting shell by a curved plate;

[0021] A through groove is provided on one side of the horizontal plate, and a strap is fixed on the other side of the horizontal plate. The strap passes through the through groove and forms a bend. The bend and the strap are fixed together by an adhesive.

[0022] Preferably, a magnetic plate is fixed to the bottom of the box body, a base plate is magnetically attracted to the bottom of the magnetic plate, and an adhesive is provided at the bottom of the base plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This gastrointestinal surgical catheter fixator inserts the catheter into a limiting shell and fixes it in place by a limiting component. By incorporating a first driving component and a second driving component, the position of the limiting shell can be adjusted, thus effectively controlling the position of the catheter. This design not only improves the flexibility and adjustability of the catheter fixation position but also ensures the stability and reliability of the catheter.

[0025] Meanwhile, a first side block and a second side block are fixed at the top of the placement plate and are set opposite to each other. When one side of the catheter is pulled, the movement of the pressure component and the residual deformation of the catheter can protect the catheter body at the insertion site, prevent the position of the catheter from changing, and avoid unnecessary pain and risks to the patient.

[0026] In addition, an accidental contact warning component is also provided on the outside of the pressure component assembly. When the catheter undergoes a large displacement, the connecting block moves outward, and the first spring deforms under force. At this time, the pressure sensor will detect the pressure value. When the pressure value detected by the pressure sensor is greater than the pressure threshold, the controller controls the audible and visual alarm to trigger an audible and visual alarm, thereby reminding medical staff and further improving the practicality of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a top view of the present invention;

[0029] Figure 3 This is a half-sectional view of the limiting shell of the present invention;

[0030] Figure 4 This is a detailed view of the pressure component assembly of the present invention;

[0031] Figure 5 This is a half-sectional view of the accidental touch warning component of the present invention;

[0032] Figure 6 for Figure 5 Enlarged view of part A in the middle.

[0033] In the diagram: 1. Box body; 2. Vertical block; 3. First lead screw; 4. Horizontal plate; 6. Limiting shell; 601. Inclined guide groove; 602. Pressure roller; 7. Connecting plate; 8. Second lead screw; 9. Horizontal plate; 901. Curved plate; 10. Binding strap; 11. Adhesive component; 121. First side block; 122. Second side block; 13. Pressing component assembly; 131. Arc plate; 132. Connecting block; 133. First guide rod; 134. First spring; 135. Socket shell; 136. Insert plate; 137. Arc-shaped pressure head; 138. Third spring; 14. Accidental contact warning component; 141. Third lead screw; 142. First vertical plate; 143. Second guide rod; 144. Second spring; 145. Pressure sensor; 15. Base plate; 151. Adhesive; 16. Magnetic plate; 17. Conduit. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1-6As shown, the present invention provides a technical solution: a gastrointestinal surgical catheter fixator, including a controller and a housing 1. To facilitate fixing the housing 1 to the outside of the surgical incision, a detachable fixing connector is provided at the bottom of the housing 1. In this solution, the connector consists of a magnetic plate 16, a base plate 15, and an adhesive patch 151. The magnetic plate 16 is fixed to the bottom end of the housing 1, and the magnetic plate 16 and the base plate 15 are magnetically connected, i.e., the base plate 15 is made of magnetically conductive material. An adhesive patch 151 is provided at the bottom end of the base plate 15. In use, the adhesive patch 151 is pasted on the patient's body to fix the housing 1. Of course, the connector can also be other components that can be quickly detached from the housing 1. It is understood that the purpose of setting a detachable connector is to facilitate the reuse of the gastrointestinal surgical catheter fixator after disinfection, thereby reducing the economic burden on patients.

[0036] A groove is provided on the top of the box 1, and a vertical block 2 is provided in the groove. The vertical block 2 is moved along the groove by a drive component 1. The drive component 1 can be an electric telescopic rod or a lead screw assembly. In this solution, the drive component 1 includes a first lead screw 3 and a third guide rod. The third guide rod is movably inserted into the vertical block 2 and the first lead screw 3 is movably screwed into the vertical block 2. Thus, when the first lead screw 3 is rotated, the vertical block 2 moves along the groove under the guidance of the third guide rod.

[0037] A horizontal plate 4 is formed on one side of the vertical block 2. A limiting shell 6 is provided on one side of the horizontal plate 4. A connecting plate 7 is fixed to the outside of the limiting shell 6. The connecting plate 7 and the limiting shell 6 are moved along the outside of the horizontal plate 4 by the second driving component. Similarly, the second driving component can be an electric telescopic rod or a screw assembly. In this solution, the second driving component includes a guide groove opened on the outside of the horizontal plate 4. The connecting plate 7 is adapted to the guide groove. A second screw 8 is movably connected in the guide groove, and the second screw 8 is movably screwed to the connecting plate 7. In this way, when the second screw 8 is rotated, the limiting shell 6 moves along the outside of the horizontal plate 4 under the guidance of the guide groove.

[0038] The conduit 17 is inserted into the limiting shell 6 and fixed by the limiting component. It is understood that by setting the driving component one and the driving component two, the position of the limiting shell 6 can be adjusted, and the position of the conduit 17 can be effectively controlled. This design not only improves the flexibility and adjustability of the fixed position of the conduit 17, but also ensures the stability and reliability of the conduit 17.

[0039] A placement plate is fixed to the top of the vertical block 2. A first side block 121 and a second side block 122, which are opposite to and staggered, are fixed to the top of the placement plate. Pressure components 13 are provided on the outer sides of both the first side block 121 and the second side block 122. Figure 1 and Figure 2As shown, after installation, the conduit 17 located between the first side block 121 and the second side block 122 is a double U-shape with opposite opening directions. When one side of the conduit 17 is pulled, the conduit 17 body at the insertion site is protected by the movement of the pressure component 13 and the residual deformation of the conduit 17.

[0040] like Figure 2 As shown, an accidental contact warning component 14 is provided on the outside of one of the pressure components 13. When the catheter 17 undergoes a large displacement, the accidental contact warning component 14 will trigger an alarm to remind medical staff.

[0041] like Figure 3 As shown, the limiting component includes inclined guide grooves 601 formed on the inner walls of both sides of the limiting shell 6. The opening formed by the inclined guide grooves 601 and the limiting shell 6 gradually increases from top to bottom. A pressure roller 602 made of rubber material is arranged between the two inclined guide grooves 601. Movable shafts are fixed on both sides of the two pressure rollers 602, and the movable shafts are adapted to the inclined guide grooves 601. It can be seen that the pressure roller 602 made of rubber material can increase the friction between the guide tube 17 and the limiting shell 6. During installation, the guide tube 17 is passed through the pressure roller 602 and the limiting shell 601. The space formed by the front shell of the housing 6 is then pushed upwards by the pressure roller 602 until the pressure roller 602 and the guide tube 17 are squeezed together. The friction between the pressure roller 602 and the plastic guide tube 17 is used to fix the guide tube 17. When the guide tube 17 is subjected to an upward pulling force, the pressure roller 602 tends to move upwards. However, the guide groove 601 further increases the squeezing force between the pressure roller 602 and the plastic guide tube 17, effectively preventing the guide tube 17 from being pulled away from the limiting member by external force, thus improving the safety of the fixture.

[0042] like Figure 4 As shown, the pressure component assembly 13 includes a vertical groove formed on the top of the placement plate. Two first guide rods 133 are fixed in the vertical groove. A connecting block 132 is movably inserted into the rod body of the first guide rod 133. Several first springs 134 are fixed between the side wall of the vertical groove and the connecting block 132. In this embodiment, the number of first guide rods 133 and first springs 134 are equal, and the first guide rods 133 are located within the spiral coils of the first springs 134. A pressing component is provided on the top of the connecting block 132. For example... Figure 5 and Figure 6As shown, the pressing component includes an arc-shaped plate 131. Several socket shells 135 are fixed to the inner side of the arc-shaped plate 131. Insert plates 136 are movably inserted into the socket shells 135. Arc-shaped pressing heads 137 are fixed to the ends of the insert plates 136. Several third springs 138 are fixed between the inner wall of the end of the socket shell 135 and the insert plate 136. It can be understood that during use, the arc-shaped plate 131 is pulled outwards, and then the guide tube 17 is placed inside the arc-shaped plate 131. On the side, after the arc plate 131 is released, under the restoring force of the first spring 134, the arc plate 131 moves to the side of the conduit 17. At this time, the third spring 138 contracts. Under the elastic force of the third spring 138, the arc-shaped pressing head 137 is pressed against the side of the conduit 17. It can be seen that, through the deformation of the third spring 138, the arc-shaped pressing head 137 can move along the socket shell 135, thereby achieving the initial limiting of conduits 17 of different diameters.

[0043] like Figure 5 As shown, the accidental touch warning component 14 includes a pressure sensor 145 and an audible and visual alarm (not shown in the figure). Both the pressure sensor 145 and the audible and visual alarm are electrically connected to the controller. It is known that the pressure signal of the pressure sensor 145 is transmitted to the controller in real time. The system sets a pressure threshold. When the pressure value detected by the pressure sensor 145 is greater than the pressure threshold, the controller controls the audible and visual alarm to activate. In addition, the accidental touch warning component 14 also includes a third lead screw 141. A second vertical plate is fixed to the end of the third lead screw 141. A first vertical plate 142 is provided on the outside of the second vertical plate. The pressure sensor 145 is fixed to the side of the first vertical plate 142. Four second guide rods 143 in a circumferential array are fixed to the side of the first vertical plate 142. The second guide rods 143 are movably inserted into the second vertical plate. Four second springs 144 are fixed between the second vertical plate and the first vertical plate 142. The second guide rods 143 are located inside the spiral coil of the second springs 144.

[0044] When the arc-shaped pressure head 137 is pressed against the side of the conduit 17, the third screw 141 is rotated until the pressure sensor 145 contacts the side of the connecting block 132. In this way, when the connecting block 132 moves outward, the first spring 134 is deformed by force, and the pressure sensor 145 will detect the pressure value.

[0045] To further improve the stability of the conduit 17, a horizontal plate 9 is provided on the top of the limiting shell 6, and the horizontal plate 9 is connected to the limiting shell 6 by a curved plate 901. A through groove is provided on one side of the horizontal plate 9, and a strap 10 is fixed on the other side of the horizontal plate 9. The strap 10 passes through the through groove and forms a bent part. The bent part is fixed to the strap 10 by an adhesive 11. The adhesive 11 can be a pair of hook and loop fasteners that are bonded to each other.

[0046] As a supplement to this solution, when using the fixator, the box 1 is fixed to one side of the surgical incision by the dressing 151, the limiting shell 6 is moved to the top of the surgical incision by the drive component 1, the catheter 17 at the surgical incision is passed through the limiting shell 6, and the catheter 17 is fixed to the side of the limiting shell 6 by the pressure roller 602. The catheter 17 is fixed to the top of the horizontal plate 9 by the strap 10. Then, the catheter 17 is limited into a double U-shape with opposite opening directions by the two pressure components 13. In this way, when the catheter 17 has a large displacement, when the connecting block 132 moves outward, the first spring 134 is deformed by force. At this time, the pressure sensor 145 will detect the pressure value. When the pressure value detected by the pressure sensor 145 is greater than the pressure threshold, the controller controls the audible and visual alarm to trigger an audible and visual alarm, thereby reminding medical staff.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A catheter fixator for gastrointestinal surgery, comprising a controller and a housing (1), characterized in that: The top of the box (1) is provided with a groove, and a vertical block (2) is provided in the groove. The vertical block (2) is moved along the groove by a driving component. A horizontal plate (4) is formed on one side of the vertical block (2), and a limiting shell (6) is provided on one side of the horizontal plate (4). A connecting plate (7) is fixed on the outside of the limiting shell (6). The connecting plate (7) and the limiting shell (6) are moved along the outside of the horizontal plate (4) by a driving component. The conduit (17) is inserted into the limiting shell (6) and the conduit (17) is fixed by the limiting member; A placement plate is fixed to the top of the vertical block (2). The top of the placement plate is fixed with a first side block (121) and a second side block (122) that are opposite to each other and staggered. A pressure component assembly (13) is provided on the outer side of the first side block (121) and the second side block (122). An accidental contact warning component (14) is provided on the outer side of one of the pressure component assemblies (13). The accidental contact warning component (14) includes a pressure sensor (145) and an audible and visual alarm. The pressure sensor (145) and the audible and visual alarm are both electrically connected to the controller.

2. The gastrointestinal surgical catheter fixator according to claim 1, characterized in that: The drive component includes a first lead screw (3) and a third guide rod. The third guide rod is movably connected to the vertical block (2), and the first lead screw (3) is movably screwed to the vertical block (2).

3. A gastrointestinal surgical catheter fixator according to claim 1, characterized in that: The second driving component includes a guide groove opened on the outside of the horizontal plate (4), and a second lead screw (8) is movably connected in the guide groove. The second lead screw (8) is movably screwed to the connecting plate (7).

4. A gastrointestinal surgical catheter fixator according to claim 1, characterized in that: The limiting component includes inclined guide grooves (601) formed on the inner walls of both sides of the limiting shell (6), and pressure rollers (602) are arranged between the two inclined guide grooves (601). Movable shafts are fixed on both sides of the two pressure rollers (602), and the movable shafts are adapted to the inclined guide grooves (601).

5. A gastrointestinal surgical catheter fixator according to claim 1, characterized in that: The pressing component assembly (13) includes a vertical groove opened on the top of the placement plate, a plurality of first guide rods (133) are fixed in the vertical groove, a connecting block (132) is movably inserted into the rod body of the first guide rod (133), and a plurality of first springs (134) are fixed between the side wall of the vertical groove and the connecting block (132). A pressure member is provided on the top of the connecting block (132).

6. A gastrointestinal surgical catheter fixator according to claim 5, characterized in that: The pressing component includes an arc-shaped plate (131), with several socket shells (135) fixed on the inner side of the arc-shaped plate (131). A plug plate (136) is movably inserted into the socket shell (135), and an arc-shaped pressing head (137) is fixed at the end of the plug plate (136). Several third springs (138) are fixed between the inner wall of the end of the socket shell (135) and the plug plate (136).

7. A gastrointestinal surgical catheter fixator according to claim 5, characterized in that: The accidental touch warning component (14) also includes a third lead screw (141), the end of which is fixed with a second vertical plate, and a first vertical plate (142) is provided on the outside of the second vertical plate. The pressure sensor (145) is fixed on the side of the first vertical plate (142). Several second guide rods (143) are fixed on the side of the first vertical plate (142). The second guide rods (143) are movably connected to the second vertical plate. Several second springs (144) are fixed between the second vertical plate and the first vertical plate (142).

8. A gastrointestinal surgical catheter fixator according to claim 1, characterized in that: The top of the limiting shell (6) is provided with a horizontal plate (9), and the horizontal plate (9) and the limiting shell (6) are connected by a curved plate (901); A through groove is provided on one side of the horizontal plate (9), and a strap (10) is fixed on the other side of the horizontal plate (9). The strap (10) forms a bend after passing through the through groove, and the bend and the strap (10) are fixed together by an adhesive (11).

9. A gastrointestinal surgical catheter fixator according to claim 1, characterized in that: A magnetic plate (16) is fixed to the bottom of the box (1), and a base plate (15) is magnetically attached to the bottom of the magnetic plate (16). An adhesive patch (151) is provided at the bottom of the base plate (15).

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