CN103623496B - Wound edge cell crawling promotion type temperature control expansion and contraction drainage tube - Google Patents

Abstract

The present invention relates to technical field of medical instruments, particularly relate to a kind of edge of wound cell and to creep promotion formula temperature control expansion and shrinkage type drainage tube, it is made up of drainage tube, connection tube and temperaturing control pressure equipment.Drainage tube is made up of outer housing, outer tube, atmospheric pressure cavity, interior pipe and transverse tube.That outer tube and interior pipe are is vertical, with the cylinder of the silica gel material of outer housing concentric, the top of outer tube and interior pipe permeates an entirety, and the lower end of interior pipe is stretched out from the bottom of outer tube and is connected with VSD high negative pressure source.Described temperaturing control pressure equipment is made up of passage, water tank, on and off switch, circuit board, electric wire, plug, heating resistor, interior case, water, temperature sensor, dividing plate and control panel.The present invention has taken into account the demand fitting tightly, suitably oppress, intermittently oppress simultaneously, and edge of wound cell is creeped to wound surface smoothly, effectively improves the speed that wound surface recovers.

Description

Wound edge cell crawling promotion type temperature control expansion and contraction drainage tube

technical field

The invention relates to the technical field of medical devices, in particular to a temperature-controlled expansion-contraction drainage tube for promoting crawling of wound margin cells.

Background technique

Wounds (burns) have endangered human health since ancient times. How to repair wounds, accelerate wound healing, prevent infection, reduce systemic and local complications, promote functional recovery, reduce disability rates, and alleviate patient pain are clinical problems that need to be solved urgently. Traditional dressings such as gauze can no longer meet clinical needs. In response to this situation, countries and large pharmaceutical companies have invested a lot of manpower and financial resources in research on new wound treatment methods and materials, among which continuous negative pressure sealing drainage (vaccumsealingdrainage, VSD) Technology is the most representative and clinically valuable material and technology for treating wounds. The core of VSD technology is to wrap the multi-side hole drainage tube with medical sponge material, and then use the semi-permeable adhesive film with the function of biological valve to seal the drainage area, so as to isolate it from the outside world, change the open wound into a relatively closed wound, and then connect The high negative pressure source forms an efficient drainage system. Compared with the traditional method, after using VSD technology, the wound treatment time and total hospitalization time of patients are significantly shortened, and the number of dressing changes, material consumption, antibiotic consumption and cost are significantly reduced; the bio-semipermeable adhesive film has good waterproof barrier properties. Antibacterial, can effectively avoid cross-infection; negative pressure sealing drainage can last for 7 to 10 days without changing dressings, which greatly reduces the pain caused by frequent dressing changes to patients and the workload of medical staff. Although VSD technology has achieved great success in the treatment of various soft tissue defects and infections, it also has its own limitations. When VSD technology is used, the sponge material is tightly attached to the wound surface, which inhibits the epidermal cells of the wound edge from crawling to the wound surface, which is not conducive to the healing of the wound surface.

The invention patent application with the application number of 201110034798.8 "Wound atomization drug delivery and intermittent negative pressure sealing drainage device" tries to reduce the sponge material in the gap generated by negative pressure by intermittently generating negative pressure in the tube body of the drainage tube. The degree of adhesion to the wound surface allows the epidermal cells of the wound edge to crawl to the wound surface, but in fact, the tight adhesion of the sponge material to the wound surface is not only due to the negative pressure in the tube, but also from the muscles of the human body , The skin's own elasticity. Therefore, even under the situation that the negative pressure in the tube body of the drainage tube disappears completely, there is still the situation that the sponge material is closely attached to the wound surface.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides a drainage tube that can contract and expand intermittently, so that the degree of adhesion between the sponge material and the wound surface is intermittently reduced, and provides a pathway for the epidermal cells of the wound edge to crawl to the wound surface. The wound edge cell crawling promotion type temperature control expansion and contraction drainage tube.

The solution to the technical problem of the present invention is: the crawling-promoting temperature-controlled expansion-contraction drainage tube of the wound margin is composed of a drainage tube, a connecting tube and a temperature-controlled pressure device.

Wherein, the drainage tube is composed of an outer cover, an outer tube, an air pressure cavity, an inner tube and a horizontal tube. The outer cover is a cylinder made of sponge material, the outer tube and the inner tube are vertical silicone cylinders coaxial with the outer cover, the outer cover is placed on the outer tube, the upper end of the inner tube is in the outer tube, the outer tube and The top of the inner tube is fused into a whole, and the lower end of the inner tube protrudes from the bottom end of the outer tube and is connected with the VSD high negative pressure source. The lower end of the outer tube is integrated with the outer side wall of the inner tube as a whole. In the outer tube, there are multiple groups of tube groups of hard plastic material arranged horizontally evenly distributed along the vertical direction. Each group of tube groups is composed of a plurality of horizontal tubes, and each horizontal tube is along the diameter of the cross-sectional circle of the outer tube. The direction is set and the outer ends of the multiple transverse tubes in each tube group are evenly distributed along the cross-sectional circumference of the outer tube. The inner and outer ends of each horizontal tube are bonded to the tube wall of the inner tube and the tube wall of the outer tube respectively, and the space outside the outer tube is communicated with the inner space of the inner tube.

The connecting pipe is a hose made of rubber, and the upper end of the connecting pipe is glued to the bottom end of the outer pipe and communicates with the annular space between the inner wall of the outer pipe and the outer wall of the inner pipe.

The temperature control pressure equipment is composed of a vent hole, a water tank, a power switch, a circuit board, an electric wire, a rubber plug, a heating resistor, an inner box, water, a temperature sensor, a partition and a control panel. Wherein, the tank cover covers the upper mouth of the water tank, and there is a vent hole on the top surface of the tank cover. In the water tank, there is a vertical partition that is integrated with the bottom surface and the inner wall of the water tank, and the partition divides the inside of the water tank. The space is divided into left and right spaces, and the inner box is an aluminum box body sealed on all sides, and the inner box is located in the left space of the water tank. The outer bottom surface of the inner box is bonded as a whole with the inner bottom surface of the water tank. There is also a heating resistor fixed with the bottom surface of the water tank in the left space. Water is housed in the left space, and the liquid level height of water is higher than the top of heating resistor and inner box simultaneously.

A horizontal through hole is opened on the partition plate, and a cylindrical rubber plug is plugged in the horizontal through hole, and the two are mutually bonded and sealed. A circuit board is fixed on the inner wall of the right side wall of the water tank, and a power switch and a control panel are installed on the outer wall of the right side wall of the water tank. The heating resistor and the temperature sensor are all connected to the circuit board through the wire passing through the rubber plug, and the control panel and the power switch are all connected to the circuit board through the wire passing through the right side wall of the water tank.

The lower end of the connecting pipe passes through the box cover from top to bottom and is glued to the top surface of the inner box and communicates with the inside of the inner box.

The upper limit and lower limit of the water temperature can be preset through the control panel.

The temperature sensor can transmit the temperature of the water to the chip on the circuit board through the wire. If the water temperature is lower than the preset lower limit, the chip sends an instruction to connect the heating resistor to the power supply and heat the water. When the temperature sensor detects that the water temperature reaches the preset upper limit, the chip sends an instruction to disconnect the heating resistor from the power supply. Make the heating resistor stop heating. Such a reciprocating cycle makes the water temperature in the water tank fluctuate up and down between the preset temperature upper limit and the temperature lower limit.

After the VSD high negative pressure source is turned on, the pus and body fluid on the wound surface are sucked into the drainage tube from the outer ends of multiple horizontal tubes and converged into the inner tube, and are sucked away from the lower end of the inner tube.

Adopt above-mentioned scheme, compared with prior art, the present invention has following remarkable progress:

Since the annular space between the outer wall of the inner pipe and the inner wall of the outer pipe is a closed space and communicates with the inner box through the connecting pipe, and the air in the inner box expands and contracts due to the rise and fall of the water temperature, which makes the outer surface of the drainage tube The profile expands and contracts as the internal air pressure rises and falls, and this deformation occurs regularly and intermittently over time.

When the outer contour of the drainage tube expands, it is conducive to the tight fit of the outer cover and the wound surface. On the one hand, it is beneficial to create an airtight airtight environment for suction, which can improve the suction efficiency. On the other hand, it also has an effect on the muscles and skin. To a certain degree of oppression and extrusion, it can promote the outflow of pus and body fluids, thereby further improving the suction efficiency.

When the outer contour of the drainage tube shrinks, the degree of adhesion between the sponge material and the wound surface is reduced, and a passage and sufficient time are provided for the epidermal cells of the wound edge to crawl to the wound surface. At the same time, since the pressure of the drainage tube on the muscle or skin of the wound is weakened, it is beneficial to the smooth blood circulation of the wound, and is more conducive to the recovery of the wound.

In the process of wound drainage using VSD technology, due to the drainage and recovery of the wound, not only the tight fit between the drainage tube and the wound surface is required, but also the pressure generated by the outer wall of the drainage tube on the wound surface should be as small as possible for a long time, which seems to be It is a pair of contradictions that are difficult to solve, but it is integrated by the technical solution of the present invention, so that during the drainage process of VSD technology, the needs of tight fit, proper compression, and intermittent compression are also taken into account, so that the wound cells can smoothly crawl to the wound surface , effectively improving the speed of wound recovery.

Description of drawings

Fig. 1 is a schematic structural view of the drainage tube of the present invention.

FIG. 2 is an enlarged schematic view of the section A-A of FIG. 1 .

Fig. 3 is a structural schematic diagram of the temperature control pressure equipment of the present invention.

In the figure: 01. Outer cover 02. Outer pipe 03. Air pressure chamber 04. Inner pipe 05. Horizontal pipe 06. Connecting pipe 07. Box cover 08. Ventilation hole 09. Water tank 10. Power switch 11. Circuit board 12. Wire 13. Rubber plug 14. Heating resistor 15. Inner box 16. Water 17. Temperature sensor 18. Partition 19. Control panel

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Wound edge cell crawling-promoting temperature-controlled expansion-contraction drainage tube is composed of drainage tube, connecting tube 06 and temperature-controlled pressure equipment.

Wherein, the drainage tube is composed of an outer cover 01 , an outer tube 02 , an air pressure chamber 03 , an inner tube 04 and a horizontal tube 05 . The outer cover 01 is a cylinder made of sponge material, the outer tube 02 and the inner tube 04 are vertical silicone cylinders coaxial with the outer cover 01, the outer cover 01 is set on the outer tube 02, and the upper end of the inner tube 04 is in the In the outer tube 02, the tops of the outer tube 02 and the inner tube 04 are integrated into a whole, and the lower end of the inner tube 04 protrudes from the bottom end of the outer tube 02 and is connected to the VSD high negative pressure source. The lower end of the outer tube 02 is integrated with the outer wall of the inner tube 04 as a whole. In the outer tube 02, there are multiple groups of tube groups of hard plastic material arranged horizontally evenly distributed along the vertical direction. Each group of tube groups is composed of a plurality of horizontal tubes 05, and each horizontal tube 05 is along the The diameter direction of the cross-sectional circle is set and the outer ends of the multiple transverse tubes 05 in each tube group are evenly distributed along the cross-sectional circumference of the outer tube 02 . The inner and outer ends of each horizontal tube 05 are bonded to the tube wall of the inner tube 04 and the tube wall of the outer tube 02 respectively and communicate the space outside the outer tube 02 with the inner space of the inner tube 04 .

The connecting pipe 06 is a hose made of rubber, and the upper end of the connecting pipe 06 is glued to the bottom end of the outer pipe 02 and communicates with the annular space between the inner wall of the outer pipe 02 and the outer wall of the inner pipe 04 .

The temperature control pressure equipment is composed of air vent 08, water tank 09, power switch 10, circuit board 11, electric wire 12, rubber plug 13, heating resistor 14, inner box 15, water 16, temperature sensor 17, dividing plate 18 and control panel 19 poses. Wherein, tank cover 07 is covered on the upper mouth of water tank 09, and vent hole 08 is arranged on the top surface of tank cover 07, and the bottom surface and inner wall of water tank 09 are arranged as a whole, vertical dividing plate 18 in water tank 09 , dividing plate 18 divides the internal space of water tank 09 into two spaces on the left and right, and inner box 15 is the all-airtight aluminum casing of each face, and inner box 15 is positioned at the left space of water tank 09. The outer bottom surface of the inner box 15 is bonded as one with the inner bottom surface of the water tank 09. Also have the heating resistance 14 that is fixed with the bottom surface of water tank 09 in described left space. Water 16 is housed in the left space, and the liquid level height of water 16 is higher than the top of heating resistor 14 and inner case 15 simultaneously.

A horizontal through hole is opened on the partition 18, and the cylindrical rubber plug 13 is plugged in the horizontal through hole and the two are bonded and sealed to each other. On the inwall of the right side wall of water tank 09, be fixed with circuit board 11, on the outer wall of the right side wall of water tank 09, power switch 10 and control panel 19 are installed. The heating resistor 14 and the temperature sensor 17 are all connected to each other with the circuit board 11 through the electric wire 12 passing through the rubber plug 13, and the control panel 19 and the power switch 10 are all connected with the circuit board 11 through the electric wire 12 passing through the right side wall of the water tank 09.

The lower end of the connecting pipe 06 passes through the box cover 07 from top to bottom and is glued to the top surface of the inner box 15 and communicates with the inside of the inner box 15 .

The upper limit and lower limit of the water temperature can be preset through the control panel 19 .

The temperature sensor 17 can transmit the temperature of the water to the chip on the circuit board 11 through the wire 12 . If the water temperature is lower than the preset lower limit, the chip sends an instruction to connect the heating resistor 14 with the power supply and heat the water. Disconnect, make heating resistor 14 stop heating. Such reciprocating circulation makes the water temperature in the water tank 09 fluctuate up and down between the preset temperature upper limit and the temperature lower limit.

After the VSD high negative pressure source is turned on, the pus and body fluid on the wound surface are sucked into the drainage tube from the outer ends of the multiple horizontal tubes 05 and converged into the inner tube 04, and sucked away from the lower end of the inner tube 04.

Claims (1)

1. an edge of wound cell is creeped promotion formula temperature control expansion and shrinkage type drainage tube, by drainage tube, connection tube and temperaturing control pressure equipment are formed, it is characterized in that: described drainage tube is by outer housing, outer tube, atmospheric pressure cavity, interior pipe and transverse tube are formed, outer housing is the cylinder of sponge material, it is vertical that outer tube and interior pipe are, with the cylinder of the silica gel material of outer housing concentric, outer housing is placed on outer tube, the upper end of interior pipe is in outer tube, the top of outer tube and interior pipe permeates an entirety, the lower end of interior pipe is stretched out from the bottom of outer tube and is connected with VSD high negative pressure source, the lower end of outer tube and the lateral wall of interior pipe permeate entirety, the pipe group of the horizontally disposed rigid plastics material of many groups is evenly distributed with within the outer tube along vertical direction, each group pipe group is made up of many transverse tubes, each root transverse tube all to be arranged and the outer end of the many transverse tubes of each group Guan Zuzhong is uniformly distributed along the cross-sectional circumferential of outer tube along the diametric(al) of the cross circular section of outer tube, the interior outer end of each root transverse tube is bonding with the tube wall of interior pipe and the tube wall of outer tube respectively and be communicated with the inner space of the space beyond outer tube with interior pipe, connection tube is the flexible pipe of quality of rubber materials, the upper end of connection tube is bonding with the bottom of outer tube and communicate with the annular space between the inwall of outer tube and the outer wall of interior pipe, described temperaturing control pressure equipment is by passage, water tank, on and off switch, circuit board, electric wire, plug, heating resistor, interior case, water, temperature sensor, dividing plate and control panel are formed, wherein, case lid is placed on the suitable for reading of water tank, the end face of case lid has passage, have in water tank with the bottom surface of water tank and inwall as a whole, vertical dividing plate, the inner space of water tank is divided into two spaces, left and right by dividing plate, interior case is all airtight aluminum matter casing in each face, interior case is positioned at the left space of water tank, the outer bottom of interior case and the inner bottom surface of water tank are bonded as one, the heating resistor fixing with the bottom surface of water tank is also had in described left space, at left space built with water, the liquid level of water is simultaneously higher than the top of heating resistor and interior case, dividing plate has a horizontal through hole, columniform plug plug is in described horizontal through hole and the two mutual adhering and sealing, the inwall of the right side wall of water tank is fixed with circuit board, the outer wall of the right side wall of water tank is provided with on and off switch and control panel, heating resistor and temperature sensor are all connected with circuit board by the electric wire through plug, control panel and on and off switch are all by being connected with circuit board through the electric wire of water tank right side wall, the lower end of described connection tube is bonding with the end face of interior case and communicate with the inside of interior case through case lid from top to bottom, the upper and lower bound of water temperature can be preset by described control panel, the temperature of water can be passed to the chip on circuit board by described temperature sensor by electric wire, if water temperature is lower than the lower limit preset, chip sends instruction makes heating resistor and power supply connect and heat water, when temperature sensor measure water temperature reach preset upper in limited time, chip sends instruction makes heating resistor and power supply disconnect, heating resistor is made to stop heating, circulate and so forth, water temperature in water tank is fluctuated up and down between the temperature upper limit preset and lowest temperature, behind unlatching VSD high negative pressure source, the pus of wound surface, body fluid sucks drainage tube from the outer end of many transverse tubes and converges to described interior pipe, and be sucked away from the lower end of interior pipe.