A wound debridement device for a hematological tumor patient

Abstract

The present application relates to the technical field of medical devices, in particular to a wound debridement device for blood tumor patients, comprising a handle vertically arranged, an injection part, an adsorption part and a mounting part for clamping medical cotton, the lower end of the handle is provided with a placing cavity, the mounting part is arranged in the placing cavity, the injection part comprises a first cylindrical cavity, a first button, a vertical slide and a first flow channel arranged in the handle, the mounting part comprises a fixing block arranged in the placing cavity and detachably connected with the handle, when the medical cotton is clamped on the handle by the fixing block, part of the medical cotton extends out of the lower end of the handle through the center hole of the fixing block, and the adsorption part comprises a second cylindrical cavity, a second button and an adsorption channel arranged vertically. The present application is simple and fast in operation when debriding the wound of the patient, greatly shortens the debridement time and reduces the labor intensity of medical staff, simultaneously reduces the time of exposing the wound of the patient to the outside, reduces the risk of wound infection and improves the wound healing speed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a wound debridement device for patients with hematologic malignancies. Background Technology

[0002] Patients with hematologic malignancies often have weakened immune systems, low platelet counts, and slow wound healing. Postoperative wounds are prone to infection and require strict care, necessitating frequent wound cleaning. Current cleaning methods involve a single medical staff member using tweezers to apply medical cotton soaked in medical alcohol to the wound, or directly rinsing the wound with medical alcohol, followed by absorbing blood with medical gauze. This process requires a medical trolley, tray, tweezers, cotton, alcohol bottles, multiple pieces of medical gauze, and a medical waste bin, which is space-consuming and inconvenient to carry. Furthermore, the process requires constantly changing cotton soaked in alcohol and gauze to absorb blood, resulting in numerous steps, long hours, prolonged wound exposure which hinders healing, and increased workload for medical staff. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a wound debridement device for patients with hematologic malignancies, so as to achieve rapid debridement of wounds in patients with hematologic malignancies.

[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a wound cleaning device for patients with hematologic malignancies, comprising a vertically arranged handle, an injection part, an adsorption part disposed on the handle, and an installation part for holding medical gauze, wherein the lower end of the arm is provided with a placement cavity, the placement cavity being a blind hole with a lower opening coaxial with the handle, and the installation part being disposed in the placement cavity;

[0005] The injection unit includes a first cylindrical cavity, a first button, a vertical slide, and a first flow channel disposed within the handle. The first cylindrical cavity is a vertically arranged blind hole with an open top. The first button is slidably connected to the first cylindrical cavity in a sealed manner. The upper end of the first button extends upward beyond the first cylindrical cavity. A first spring is disposed within the first cylindrical cavity, with its upper end connected to the first button and its lower end connected to the bottom wall of the first cylindrical cavity. An injection hole is disposed on the side wall of the first cylindrical cavity. The upper end of the vertical slide is connected to the first cylindrical cavity. A sliding column is slidably connected within the vertical slide. A third spring is disposed within the vertical slide, with its upper end fixedly connected to the sliding column and its lower end fixedly connected to the bottom wall of the vertical slide. The upper end of the first flow channel is connected to the upper inner cavity of the vertical slide, and the lower end of the first flow channel is connected to the placement cavity. The sliding column blocks the upper end of the first flow channel.

[0006] The mounting part includes a fixing block disposed in the placement cavity and detachably connected to the handle. The fixing block is generally ring-shaped, and a gap is left between the fixing block and the bottom wall of the placement cavity for clamping medical gauze. When the medical gauze is clamped on the handle by the fixing block, part of the medical gauze extends out of the lower end of the handle through the central hole of the fixing block.

[0007] The adsorption unit includes a vertically arranged second cylindrical cavity, a second button, and an adsorption channel. The upper side wall of the second cylindrical cavity is provided with a first one-way valve that allows fluid to flow from the first cylindrical cavity to the outside of the handle. The lower side wall of the second cylindrical cavity is provided with a drain hole. The second button is slidably connected to the second cylindrical cavity in a sealed manner. The upper end of the second button extends upward outside the second cylindrical cavity. A second spring is provided inside the second cylindrical cavity, with its upper end connected to the second button and its lower end connected to the bottom wall of the second cylindrical cavity. The upper end of the adsorption channel communicates with the inner cavity of the second cylindrical cavity. The upper port of the adsorption channel is provided with a second one-way valve that allows fluid to flow from the adsorption channel to the second cylindrical cavity. The lower end of the adsorption channel communicates with the placement cavity.

[0008] In the above scheme, the medical gauze is clamped in the placement cavity by a fixing block, with part of the medical gauze extending from the lower end of the handle through the central hole of the fixing block. After opening the injection hole to inject medical alcohol into the first cylindrical cavity, the injection hole is closed. At this time, the sliding column, under the elastic force of the third spring, blocks the upper end of the first flow channel, preventing the medical alcohol in the first cylindrical cavity from flowing into the medical gauze in the placement cavity through the first channel. When it is necessary to clean the patient's wound, pressing the first button increases the pressure in the first cylindrical cavity, forcing the sliding column to slide downwards and opening the upper port of the first flow channel. The medical alcohol in the first cylindrical cavity flows into the medical gauze in the placement cavity. After the entire medical gauze is completely soaked in medical alcohol, the handle can be held by the extension at the lower end of the handle. The medical gauze is used to wipe the wound tissue. During this process, the release of medical alcohol can be controlled by pressing the first button. When the wiping is complete and blood needs to be absorbed, the second button is pressed. The second spring is compressed and stored, and the air in the second cylindrical cavity flows out through the first one-way valve. After releasing the button, the second spring forces the second button to slide upward, reducing the air pressure in the second cylindrical cavity and creating a negative pressure. The negative pressure draws the liquid from the medical gauze in the cavity into the second cylindrical cavity through the absorption channel. As the liquid in the medical gauze decreases, it will actively absorb the liquid from the wound. By continuously pressing the second button, the liquid from the wound can be absorbed into the second cylindrical cavity. After absorption is complete, the drain hole can be opened to drain the liquid from the second cylindrical cavity.

[0009] Furthermore, a squeezing rod is vertically installed at the bottom of the second button. The upper end of the squeezing rod is fixedly connected to the second button, and the lower end of the squeezing rod extends downward into the placement cavity. When the second button is pressed, the lower end of the squeezing rod squeezes the medical gauze downward to accelerate the seepage of liquid inside the medical gauze and increase the absorption rate of liquid inside the medical gauze.

[0010] Furthermore, the vertical cross-section of the fixing block is a U-shape comprising an outer ring plate and an inner ring plate. A U-shaped groove with an open upper end is formed between the outer and inner ring plates. An annular partition is horizontally arranged within the U-shaped groove to close the open end of the groove. An annular temporary storage cavity is formed between the annular partition and the bottom wall of the U-shaped groove. Several through holes are evenly distributed on the annular partition. The lower end of the adsorption channel communicates with the temporary storage cavity. The liquid extruded from the medical gauze by the squeezing rod accumulates in the temporary storage cavity and does not come into contact with the medical gauze. The extruded liquid will not re-enter the medical gauze, further improving the adsorption efficiency of the adsorption channel.

[0011] Furthermore, a pressure ring is horizontally fixedly connected to the lower end of the extrusion rod, and the pressure ring is an annular body that fits with the U-shaped groove with a gap. The pressure ring fitting with the U-shaped groove can compress the medical gauze throughout the entire U-shaped groove, accelerating the extrusion rate of liquid within the medical gauze and further improving the adsorption speed of the medical gauze.

[0012] Furthermore, the inner wall of the placement cavity is provided with an internal thread, and the outer wall of the outer ring plate is provided with an external thread that mates with the internal thread.

[0013] Furthermore, the handle is provided with an air passage, one end of which is connected to the lower inner cavity of the vertical slide, and the other end of which is connected to the external space of the handle.

[0014] Compared with existing wound cleaning methods that involve medical staff using tweezers to apply medical alcohol to the patient's wound, this invention has at least the following advantages:

[0015] 1. This invention integrates wiping, cleaning, and adsorption into a single structure, making it easy to carry and not occupying indoor space. It can adsorb the liquid generated during wound cleaning at any time, eliminating the need for frequent changes of gauze throughout the entire debridement process. The operation is simple and quick, greatly shortening the debridement time and reducing the labor intensity of medical staff. At the same time, it reduces the time the patient's wound is exposed to the outside, lowers the risk of wound infection, and improves the wound healing speed.

[0016] 2. The alcohol is released by pressing the first button, which allows for easy control of the amount of alcohol released according to the actual condition of the wound.

[0017] 3. Pressing the second button causes the medical gauze to squeeze out liquid, and the squeezed liquid is separated from the medical gauze to prevent the liquid from re-entering the medical gauze. After releasing the second button, the liquid squeezed out of the medical gauze can be absorbed. The squeezing and absorption are short in time and almost simultaneous, which improves the absorption efficiency.

[0018] 4. The medical gauze absorbs the liquid from the wound through its own adsorption, which avoids the strong adsorption that occurs with pumps and pipes, which can easily draw muscle tissue into the wound and cause further damage. This method is highly safe. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 for Figure 1 Enlarged view of part A in the image.

[0022] Figure 3 This is a schematic diagram showing the positions of the first and second cylindrical cavities on the handle.

[0023] Figure 4 This is a schematic diagram of the fixed block.

[0024] Figure 5 This is a top view of the fixed block.

[0025] Figure 6 This is a top-view diagram showing the fit between the compression rod and the pressure ring.

[0026] Figure 7 This is a schematic diagram of the structure of the present invention when the first button is pressed.

[0027] Figure 8 for Figure 7 Enlarged view of section B in the middle.

[0028] Figure 9 This is a schematic diagram of the external structure of the present invention.

[0029] The meanings of the labels in the attached diagram are as follows:

[0030] Handle 10, First cylindrical cavity 101, First button 102, Vertical slide 103, First flow channel 104, First spring 105, Sliding column 106, Injection hole 107, Third spring 108, Air passage 109, Second cylindrical cavity 201, Second button 202, Adsorption channel 203, First one-way valve 204, Drain hole 205, Second spring 206, Second one-way valve 207, Squeezing rod 208, Pressure ring 209, Placement cavity 31, Fixing block 32, Outer ring plate 321, Inner ring plate 322, U-shaped groove 323, Annular partition 324, Temporary storage cavity 325, Through hole 326, Flow hole 327, Medical gauze 40. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] This embodiment provides a wound debridement device for patients with hematologic malignancies, such as... Figure 1 As shown, the arm includes a vertically positioned handle 10, an injection section, an adsorption section, and a mounting section for holding medical gauze 40, all mounted on the handle 10. The lower end of the arm has a placement cavity 31. Figure 9 As shown, the handle 10 is cylindrical in shape, and the lower end of the handle 10 is shaped like a frustum. The placement cavity 31 is a circular blind hole with an opening at the lower end, which is coaxially arranged with the handle 10. The inner wall of the placement cavity 31 is provided with internal threads, and the mounting part is disposed in the placement cavity 31.

[0034] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the mounting part includes a fixing block 32, which is generally annular. A gap is left between the fixing block 32 and the bottom wall of the placement cavity 31 for clamping the medical gauze 40. When the medical gauze 40 is clamped onto the handle 10 by the fixing block 32, a portion of the medical gauze 40 extends out of the lower end of the handle 10 through the central hole of the fixing block 32. The vertical cross-section of the fixing block 32 is a U-shape including an outer ring plate 321 and an inner ring plate 322. An opening is formed at the upper end between the outer ring plate 321 and the inner ring plate 322. The U-shaped groove 323 has an annular partition 324 horizontally arranged inside the U-shaped groove 323 to close the opening end of the U-shaped groove 323. An annular temporary storage cavity 325 is formed between the annular partition 324 and the bottom wall of the U-shaped groove 323. A plurality of through holes 326 are evenly distributed on the annular partition 324. A flow hole 327 is provided on the outer ring plate 321 to connect the temporary storage cavity 325 with the external space of the fixed block 32. An external thread is provided on the outer wall of the outer ring plate 321 to engage with the internal thread on the inner wall of the placement cavity 31.

[0035] like Figures 1-3 As shown, the injection unit includes a first cylindrical cavity 101, a first button 102, a vertical slide 103, and a first flow channel 104 disposed within the handle 10. The first cylindrical cavity 101 is a vertically arranged blind hole with an open upper end. The first button 102 is slidably connected to the upper end of the first cylindrical cavity 101. A first spring 105 is vertically disposed within the first cylindrical cavity 101. The upper end of the first spring 105 is fixedly connected to the first button 102, and the lower end of the first spring 105 is fixedly connected to the bottom of the first cylindrical cavity 101. Under the elastic force of the first spring 105, the upper end of the first button 102 extends upward beyond the first cylindrical cavity 101. The side wall of the first cylindrical cavity 101 is provided with an injection hole 107 for injecting liquid into the first cylindrical cavity 101. The vertical slide 103 is disposed within the first cylindrical cavity 101. Below, a vertical slide 103 is vertically arranged. The vertical slide 103 is a blind hole with its upper end connected to the first cylindrical cavity 101. An air passage 109 is provided inside the handle 10. One end of the air passage 109 is connected to the lower inner cavity of the vertical slide 103, and the other end of the air passage 109 is connected to the external space of the handle 10. A sliding column 106 is sealed and slidably connected inside the vertical slide 103. A third spring 108 is vertically arranged inside the vertical slide 103. The upper end of the third spring 108 is fixedly connected to the sliding column 106, and the lower end of the third spring 108 is fixedly connected to the bottom wall of the vertical slide 103. The upper end of the first flow channel 104 is connected to the upper inner cavity of the vertical slide 103, and the lower end of the first flow channel 104 is connected to the placement cavity 31. Under the elastic force of the third spring 108, the sliding column 106 is located at the position that blocks the upper end of the first flow channel 104.

[0036] The adsorption unit includes a vertically arranged second cylindrical cavity 201, a second button 202, and an adsorption channel 203. The upper sidewall of the second cylindrical cavity 201 is provided with a first one-way valve 204 that allows fluid to flow from the first cylindrical cavity 101 to the outside of the handle 10. The lower sidewall of the second cylindrical cavity 201 is provided with a drain hole 205. The second button 202 is slidably connected to the second cylindrical cavity 201. A second spring 206 is vertically arranged inside the second cylindrical cavity 201. The upper end of the second spring 206... The second button 202 is fixedly connected to the second button 202. The lower end of the second spring 206 is fixedly connected to the bottom wall of the second cylindrical cavity 201. Under the elastic force of the second spring 206, the upper end of the second button 202 extends upward out of the second cylindrical cavity 201. A pressing rod 208 is vertically installed at the bottom of the second button 202. The upper end of the pressing rod 208 is fixedly connected to the second button 202, and the lower end of the pressing rod 208 extends downward into the placement cavity 31. The pressing rod 208 is slidably and sealingly connected to the handle 10. Figures 6-8 As shown, the lower end of the extrusion rod 208 is horizontally fixedly connected to a pressure ring 209, which is an annular body that fits with the U-shaped groove 323 with a clearance. The upper end of the adsorption channel 203 communicates with the inner cavity of the second cylindrical cavity 201. The upper port of the adsorption channel 203 is provided with a second one-way valve 207 that allows fluid to flow from the adsorption channel 203 to the second cylindrical cavity 201. The lower end of the adsorption channel 203 is sealed and communicated with the flow hole 327.

[0037] The working principle of this solution is as follows:

[0038] First, the medical gauze 40 is clamped in the placement cavity 31 by the fixing block 32, so that part of the medical gauze 40 extends out of the lower end of the handle 10 through the central hole of the fixing block 32. Then, the injection hole 107 is opened to inject medical alcohol into the first cylindrical cavity 101, and the injection hole 107 is closed. At this time, the elastic force of the third spring 108 causes the sliding column 106 to block the upper end of the first flow channel 104, preventing the medical alcohol in the first cylindrical cavity 101 from flowing into the medical gauze 40 in the placement cavity 31 through the first channel. When it is necessary to treat the patient's wound... During wound cleaning, pressing the first button 102 increases the pressure inside the first cylindrical cavity 101, forcing the slide column 106 to slide downwards and open the upper port of the first flow channel 104. The medical alcohol in the first cylindrical cavity 101 flows into the medical gauze 40 in the placement cavity 31. After the entire medical gauze 40 is completely soaked in medical alcohol, the handle 10 can be held and the medical gauze 40 extending from the lower end of the handle 10 can be used to wipe the wound. During this process, the amount of medical alcohol released can be controlled by the depth and number of times the first button 102 is pressed.

[0039] When the wound has been cleaned and blood needs to be absorbed, pressing the second button 202 compresses and stores energy in the second spring 206. At this time, the second one-way valve 207 closes, and the air in the second cylindrical cavity 201 flows out through the first one-way valve 204. The second button 202, via the squeezing rod 208, drives the pressure ring 209 to squeeze the medical gauze 40. The liquid inside the medical gauze 40 is squeezed out and flows into the temporary storage cavity 325 through the through hole 326 on the annular partition 324. When the hand pressing the second button 202 is released, the second spring 206 forces the second button 202 to slide upwards, reducing the air pressure in the second cylindrical cavity 201 and creating a negative pressure. When the first one-way valve 204 is closed, the negative pressure draws the liquid in the temporary storage chamber 325 into the second cylindrical chamber 201 through the adsorption channel 203. After the pressure ring 209 leaves the medical gauze 40, the liquid in the medical gauze 40 is squeezed out and expands to actively absorb the liquid at the wound. By continuously pressing the second button 202, the liquid at the wound is drawn into the second cylindrical chamber 201. After the absorption is complete, the drain hole 205 is opened to block the outlet of the first one-way valve 204. Pressing the second button 202 will squeeze out the liquid in the second cylindrical chamber 201.

[0040] The above are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A wound debridement device for patients with hematologic malignancies, comprising a vertically arranged handle (10), characterized in that: The handle (10) is provided with an injection part, an adsorption part and an installation part for clamping medical gauze (40). The lower end of the handle (10) is provided with a placement cavity (31). The placement cavity (31) is a blind hole with an opening at the lower end that is coaxial with the handle (10). The installation part is located in the placement cavity (31). The injection unit includes a first cylindrical cavity (101), a first button (102), a vertical slide (103), and a first flow channel (104) disposed within the handle (10). The first cylindrical cavity (101) is a vertically arranged blind hole with an open top. The first button (102) is slidably connected to the first cylindrical cavity (101) in a sealed manner. The upper end of the first button (102) extends upward beyond the first cylindrical cavity (101). A first spring (105) is disposed within the first cylindrical cavity (101), with its upper end connected to the first button (102) and its lower end connected to the bottom wall of the first cylindrical cavity (101). The side wall of the vertical slide (103) is provided with an injection hole (107). The upper end of the vertical slide (103) is connected to the first cylindrical cavity (101). The vertical slide (103) is sealed and slidably connected to a sliding column (106). The vertical slide (103) is provided with a third spring (108) whose upper end is fixedly connected to the sliding column (106) and whose lower end is fixedly connected to the bottom wall of the vertical slide (103). The upper end of the first flow channel (104) is connected to the upper inner cavity of the vertical slide (103). The lower end of the first flow channel (104) is connected to the placement cavity (31). The sliding column (106) blocks the upper end of the first flow channel (104). The mounting part includes a fixing block (32) disposed in the placement cavity (31) and detachably connected to the handle (10). The fixing block (32) is generally ring-shaped. A gap is left between the fixing block (32) and the bottom wall of the placement cavity (31) for clamping medical gauze (40). When the medical gauze (40) is clamped on the handle (10) by the fixing block (32), part of the medical gauze (40) extends out of the lower end of the handle (10) through the central hole of the fixing block (32). The adsorption unit includes a vertically arranged second cylindrical cavity (201), a second button (202), and an adsorption channel (203). The upper sidewall of the second cylindrical cavity (201) is provided with a first one-way valve (204) that allows fluid to flow from the second cylindrical cavity (201) to the outside of the handle (10). The lower sidewall of the second cylindrical cavity (201) is provided with a drain hole (205). The second button (202) is slidably connected to the second cylindrical cavity (201). 2) The upper end of the spring extends upward outside the second cylindrical cavity (201). The second cylindrical cavity (201) is provided with a second spring (206) whose upper end is connected to the second button (202) and whose lower end is connected to the bottom wall of the second cylindrical cavity (201). The upper end of the adsorption channel (203) is connected to the inner cavity of the second cylindrical cavity (201). The upper port of the adsorption channel (203) is provided with a second one-way valve (207) that allows fluid to flow from the adsorption channel (203) to the second cylindrical cavity (201). The vertical cross section of the fixing block (32) is a U-shaped body including an outer ring plate (321) and an inner ring plate (322). A U-shaped groove (323) with an open upper end is formed between the outer ring plate (321) and the inner ring plate (322). An annular partition (324) is horizontally arranged in the U-shaped groove (323) to close the open end of the U-shaped groove (323). An annular temporary storage cavity (325) is formed between the annular partition (324) and the bottom wall of the U-shaped groove (323). Several through holes (326) are evenly distributed on the annular partition (324). The lower end of the adsorption channel (203) is connected to the temporary storage cavity (325). A pressing rod (208) is vertically installed at the bottom of the second button (202). The upper end of the pressing rod (208) is fixedly connected to the second button (202), and the lower end of the pressing rod (208) extends downward into the placement cavity (31). The lower end of the pressing rod (208) is horizontally fixedly connected to a pressure ring (209). The pressure ring (209) is an annular body that is in clearance fit with the U-shaped groove (323).

2. The wound debridement device for patients with hematologic malignancies according to claim 1, characterized in that: The inner wall of the placement cavity (31) is provided with an internal thread, and the outer wall of the outer ring plate (321) is provided with an external thread that mates with the internal thread.

3. The wound debridement device for patients with hematologic malignancies according to claim 2, characterized in that: An air passage (109) is provided inside the handle (10). One end of the air passage (109) is connected to the lower inner cavity of the vertical slide (103), and the other end of the air passage (109) is connected to the external space of the handle (10).

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