diff --git a/src/components/exam/ExamPrintPanel.tsx b/src/components/exam/ExamPrintPanel.tsx
index 3ee1ed0..6958508 100644
--- a/src/components/exam/ExamPrintPanel.tsx
+++ b/src/components/exam/ExamPrintPanel.tsx
@@ -1,44 +1,62 @@
 import { useEffect, useRef, useState } from 'react';
 
-import { getTongyishuPdf } from '../../api';
+import { submitDaojiandanSign } from '../../api';
 import type { ExamClient } from '../../data/mockData';
-import { Button } from '../ui';
+import type { SignaturePadHandle } from '../ui';
+import { Button, SignaturePad } from '../ui';
 
 export const ExamPrintPanel = ({ client }: { client: ExamClient }) => {
   const [pdfUrl, setPdfUrl] = useState<string | null>(null);
-  const [loading, setLoading] = useState(true);
+  const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
   const [pdfReady, setPdfReady] = useState(false);
   const [pdfBlobUrl, setPdfBlobUrl] = useState<string | null>(null);
+  const [signatureSubmitted, setSignatureSubmitted] = useState(false);
+  const [submitLoading, setSubmitLoading] = useState(false);
+  const [submitMessage, setSubmitMessage] = useState<string | null>(null);
+  const signaturePadRef = useRef<SignaturePadHandle | null>(null);
   const printRef = useRef<HTMLDivElement>(null);
   const iframeRef = useRef<HTMLIFrameElement>(null);
 
-  useEffect(() => {
-    const physical_exam_id = Number(client.id);
-    if (!physical_exam_id) {
-      setError('无效的体检ID');
-      setLoading(false);
+  const handleSubmitSign = async () => {
+    const examId = Number(client.id);
+    if (!examId) {
+      setSubmitMessage('无效的体检ID');
       return;
     }
 
-    setPdfReady(false);
-    getTongyishuPdf({ exam_id: physical_exam_id })
-      .then((res) => {
-        if (res.Status === 200 && res.Data?.list_pdf_url && res.Data.list_pdf_url.length > 0) {
-          setPdfUrl(res.Data.list_pdf_url[0].pdf_url);
-          setPdfReady(false);
-        } else {
-          setError(res.Message || '未获取到PDF文件');
-        }
-      })
-      .catch((err) => {
-        console.error('获取PDF失败', err);
-        setError('获取PDF失败，请稍后重试');
-      })
-      .finally(() => {
-        setLoading(false);
+    const dataUrl = signaturePadRef.current?.toDataURL('image/png');
+    if (!dataUrl) {
+      setSubmitMessage('请先完成签名');
+      return;
+    }
+
+    setSubmitLoading(true);
+    setSubmitMessage(null);
+    try {
+      // 将 base64 转换为 Blob
+      const blob = await fetch(dataUrl).then(r => r.blob());
+
+      // 提交签名生成导检单PDF
+      const res = await submitDaojiandanSign({
+        exam_id: examId,
+        sign_file: blob,
       });
-  }, [client.id]);
+
+      if (res.Status === 200 && res.Data?.pdf_url) {
+        setSubmitMessage('签名提交成功，正在加载导检单...');
+        setSignatureSubmitted(true);
+        setPdfUrl(res.Data.pdf_url);
+      } else {
+        setSubmitMessage(res.Message || '签名提交失败');
+      }
+    } catch (err) {
+      console.error('提交签名失败', err);
+      setSubmitMessage('签名提交失败，请稍后重试');
+    } finally {
+      setSubmitLoading(false);
+    }
+  };
 
   useEffect(() => {
     if (!pdfUrl) return;
@@ -88,24 +106,67 @@ export const ExamPrintPanel = ({ client }: { client: ExamClient }) => {
         <div className='flex items-center justify-between border-b pb-3 mb-3'>
           <div>
             <div className='text-sm font-semibold'>圆和医疗体检中心 · 导检单预览</div>
-            <div className='text-[11px] text-gray-500 mt-1'>此为预览页面，实际打印效果以院内打印机为准。</div>
+            <div className='text-[11px] text-gray-500 mt-1'>
+              {signatureSubmitted
+                ? '此为预览页面，实际打印效果以院内打印机为准。'
+                : '请先完成签名，签名后将生成导检单PDF'}
+            </div>
           </div>
           <div className='flex items-center gap-3'>
             <div className='text-right text-[11px] text-gray-500'>
               <div>体检号：{client.id}</div>
               <div>日期：{new Date().toLocaleDateString('zh-CN')}</div>
             </div>
-            <Button
-              className='px-4 py-1.5 text-xs bg-blue-600 hover:bg-blue-700 text-white disabled:opacity-50 disabled:cursor-not-allowed'
-              onClick={handlePrint}
-              disabled={loading || !pdfReady || !pdfUrl}
-            >
-              打印
-            </Button>
+            {signatureSubmitted && (
+              <Button
+                className='px-4 py-1.5 text-xs bg-blue-600 hover:bg-blue-700 text-white disabled:opacity-50 disabled:cursor-not-allowed'
+                onClick={handlePrint}
+                disabled={loading || !pdfReady || !pdfUrl}
+              >
+                打印
+              </Button>
+            )}
           </div>
         </div>
 
-        {loading ? (
+        {!signatureSubmitted ? (
+          <div className='flex flex-col gap-4'>
+            <div className='text-sm font-medium text-gray-900'>请在下方区域签名</div>
+            <div className='ui7-signature-wrapper border rounded-xl overflow-hidden bg-gray-50'>
+              <SignaturePad
+                ref={signaturePadRef}
+                className='ui7-signature-canvas w-full h-72 bg-white touch-none'
+              />
+              <div className='flex items-center justify-between px-3 py-2 bg-gray-50 border-t'>
+                <div className='text-xs text-gray-500'>请在上方区域签名</div>
+                <Button
+                  className='ui7-clear-button py-1 px-3'
+                  onClick={() => signaturePadRef.current?.clear()}
+                  disabled={submitLoading}
+                >
+                  清除
+                </Button>
+              </div>
+            </div>
+            {submitMessage && (
+              <div
+                className={`text-sm text-center ${submitMessage.includes('成功') ? 'text-green-600' : 'text-amber-600'
+                  }`}
+              >
+                {submitMessage}
+              </div>
+            )}
+            <div className='flex items-center justify-end gap-3'>
+              <Button
+                className='py-2 px-6 bg-blue-600 text-white hover:bg-blue-700'
+                onClick={handleSubmitSign}
+                disabled={submitLoading}
+              >
+                {submitLoading ? '提交中...' : '提交签名'}
+              </Button>
+            </div>
+          </div>
+        ) : loading ? (
           <div className='flex items-center justify-center py-12 text-gray-500'>
             <div>正在加载PDF...</div>
           </div>
@@ -115,29 +176,13 @@ export const ExamPrintPanel = ({ client }: { client: ExamClient }) => {
             <Button
               className='px-4 py-1.5 text-xs'
               onClick={() => {
-                setLoading(true);
                 setError(null);
-                const physical_exam_id = Number(client.id);
-                if (physical_exam_id) {
-                  getTongyishuPdf({ exam_id: physical_exam_id })
-                    .then((res) => {
-                      if (res.Status === 200 && res.Data?.list_pdf_url && res.Data.list_pdf_url.length > 0) {
-                        setPdfUrl(res.Data.list_pdf_url[0].pdf_url);
-                      } else {
-                        setError(res.Message || '未获取到PDF文件');
-                      }
-                    })
-                    .catch((err) => {
-                      console.error('获取PDF失败', err);
-                      setError('获取PDF失败，请稍后重试');
-                    })
-                    .finally(() => {
-                      setLoading(false);
-                    });
-                }
+                setPdfUrl(null);
+                setSignatureSubmitted(false);
+                signaturePadRef.current?.clear();
               }}
             >
-              重试
+              重新签名
             </Button>
           </div>
         ) : pdfUrl ? (